{"title":"Flow - Flow monitor (QS)","description":"","products":[{"product_id":"qska-kalorimetrischer-stromungswachter","title":"QSKA calorimetric flow switch","description":"\u003cp\u003eThe \u003cstrong\u003eQSKA\u003c\/strong\u003e is a calorimetric flow switch for water, oil and air with no moving parts in the medium. It is particularly suited to water, cutting fluid, lubricating oil and air, and to pump dry-running protection.\u003c\/p\u003e\u003cp\u003eA heated and an unheated resistor in the probe sense the flow velocity. Setting range: \u003cstrong\u003e1 … 150 cm\/s water\u003c\/strong\u003e, \u003cstrong\u003e3 … 300 cm\/s oil\u003c\/strong\u003e, \u003cstrong\u003e20 … 2000 cm\/s air\u003c\/strong\u003e, by potentiometer. Accuracy and repeatability of the switching point are not documented. Output \u003cstrong\u003ePNP, NPN or relay (SPDT)\u003c\/strong\u003e, switching current ≤ 400 mA (PNP\/NPN) or ≤ 4 A (relay). Supply \u003cstrong\u003e24 V DC ± 20 %\u003c\/strong\u003e or \u003cstrong\u003e230 V AC ± 15 %\u003c\/strong\u003e, response time 1 … 13 s, typically 2 s. Connection via \u003cstrong\u003eM12 × 1\u003c\/strong\u003e plug or 2 m of cable.\u003c\/p\u003e\u003cp\u003eProbe in stainless steel, housing in PBT. Process connection G1\/2, G1\/4, R1\/2 or R1\/4 male or M18 × 1.5 female, probe length 30 mm (DN32 and below) or 50 mm (DN40 and above). Pressure rating \u003cstrong\u003e100 bar\u003c\/strong\u003e, medium temperature \u003cstrong\u003e-20 … +80 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP67\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: The setting range is a flow velocity; the flow rate depends on the pipe bore. The pressure of the installed assembly is set by the accessory; the conventional stainless tee is rated 40 bar. For the relay (4 A) neither a voltage nor an AC\/DC rating is documented.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eCalorimetric principle with no moving parts\u003c\/li\u003e\u003cli\u003eSettable for water, oil and air\u003c\/li\u003e\u003cli\u003eOutput PNP, NPN or SPDT relay\u003c\/li\u003e\u003cli\u003eSupply 24 V DC or 230 V AC\u003c\/li\u003e\u003cli\u003ePressure rating 100 bar at the switch\u003c\/li\u003e\u003cli\u003eProtection IP67\u003c\/li\u003e\u003cli\u003eLED row with six LEDs for switching state and velocity trend\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453412843846,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKA_produkt.webp?v=1790331873"},{"product_id":"qskc-kalorimetrischer-stromungswachter-edelstahl","title":"QSKC calorimetric flow switch, stainless steel","description":"\u003cp\u003eThe \u003cstrong\u003eQSKC\u003c\/strong\u003e is a calorimetric flow switch with probe and housing in stainless steel and no moving parts in the medium. It is particularly suited to water, cutting fluid, lubricating oil and air, to pump dry-running protection and to low-flow alarms.\u003c\/p\u003e\u003cp\u003eA heated and an unheated resistor in the probe sense the flow velocity. Setting range: \u003cstrong\u003e1 … 150 cm\/s water\u003c\/strong\u003e, \u003cstrong\u003e3 … 300 cm\/s oil\u003c\/strong\u003e, \u003cstrong\u003e20 … 2000 cm\/s air\u003c\/strong\u003e, by potentiometer. Accuracy and repeatability of the switching point are not documented. Output \u003cstrong\u003ePNP, NPN or relay (SPDT)\u003c\/strong\u003e, switching current ≤ 400 mA or ≤ 4 A (relay). Supply \u003cstrong\u003e24 V DC ± 20 %\u003c\/strong\u003e, no-load current ≤ 80 mA, response time 1 … 13 s, typically 2 s. Connection via side-mounted \u003cstrong\u003eM12 × 1\u003c\/strong\u003e plug or 2 m of cable.\u003c\/p\u003e\u003cp\u003eProbe and housing in stainless steel, weight 0.4 kg. Process connection G1\/2, G1\/4, R1\/2 or R1\/4 male or M18 × 1.5 female. Pressure rating \u003cstrong\u003e100 bar\u003c\/strong\u003e, medium temperature \u003cstrong\u003e-20 … +80 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP67\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: The setting range is a flow velocity; the flow rate depends on the pipe bore. Data block and order code disagree on the supply; only 24 V DC can be ordered, and a 230 V AC version has to be confirmed first. The pressure of the installed assembly is set by the accessory; the conventional stainless tee is rated 40 bar.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eHousing and probe entirely in stainless steel\u003c\/li\u003e\u003cli\u003eCalorimetric principle with no moving parts\u003c\/li\u003e\u003cli\u003eSettable for water, oil and air\u003c\/li\u003e\u003cli\u003eOutput PNP, NPN or SPDT relay\u003c\/li\u003e\u003cli\u003ePressure rating 100 bar at the switch\u003c\/li\u003e\u003cli\u003eProtection IP67\u003c\/li\u003e\u003cli\u003eLED row with six LEDs for switching state and velocity trend\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453412909382,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKC_produkt.webp?v=1790331873"},{"product_id":"qskd-kalorimetrischer-stromungswachter-magnetstift-einstellung","title":"QSKD calorimetric flow switch, magnetic pen setting","description":"\u003cp\u003eThe \u003cstrong\u003eQSKD\u003c\/strong\u003e is a settable calorimetric flow switch with housing and probe in stainless steel. It is particularly suited to water, oil, gas and other media compatible with stainless steel in hydraulics, lubrication, pumps, cooling, ventilation, water treatment and leak detection.\u003c\/p\u003e\u003cp\u003eMeasuring principle thermal diffusion with a reference sensor and a heated sensor in one probe. Setting range as flow velocity: \u003cstrong\u003e1 … 150 cm\/s water\u003c\/strong\u003e, \u003cstrong\u003e3 … 300 cm\/s oil\u003c\/strong\u003e, \u003cstrong\u003e20 … 2000 cm\/s air\u003c\/strong\u003e; the scale is calibrated in water. Repeatability \u003cstrong\u003e1 % below 0.6 m\/s\u003c\/strong\u003e, 3 % below 1.5 m\/s, 10 % above 1.5 m\/s; an accuracy is not documented. Output \u003cstrong\u003ePNP, NPN or relay\u003c\/strong\u003e, normally open or normally closed set in the field, switching load 500 mA at 24 V DC or 60 W (relay). Supply \u003cstrong\u003e12 … 30 V DC\u003c\/strong\u003e, response time 2 s typical. Setting by inductive keys with a magnetic pen, connection \u003cstrong\u003eM12 × 1\u003c\/strong\u003e, four pins.\u003c\/p\u003e\u003cp\u003eHousing 304 stainless steel, probe 316L stainless steel, housing turnable through 330°. Process connection G1\/2, G1\/4, R1\/2 or R1\/4 male, M18 × 1.5 female or clamp 25.5 mm or 50.5 mm to ISO 2852:1993. Pressure rating \u003cstrong\u003e100 bar\u003c\/strong\u003e, medium temperature \u003cstrong\u003e-20 … +85 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP67\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: The setting range is a flow velocity in water; for other media the value has to be specified separately. The 300 bar option named in the data block has no order field. For the relay (60 W) neither a voltage nor an AC\/DC rating is documented.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eRepeatability documented, 1 % below 0.6 m\/s\u003c\/li\u003e\u003cli\u003eHousing 304 stainless, probe 316L stainless\u003c\/li\u003e\u003cli\u003eSetting by keys and magnetic pen\u003c\/li\u003e\u003cli\u003eNormally open or normally closed set in the field\u003c\/li\u003e\u003cli\u003eOutput PNP, NPN or relay\u003c\/li\u003e\u003cli\u003eClamp connection to ISO 2852:1993 available\u003c\/li\u003e\u003cli\u003ePressure rating 100 bar, protection IP67\u003c\/li\u003e\u003cli\u003eHousing turnable through 330°\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453412942150,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKD_produkt.webp?v=1790331873"},{"product_id":"qske-thermischer-stromungswachter-mit-digitalanzeige","title":"QSKE thermal flow switch with digital display","description":"\u003cp\u003eThe \u003cstrong\u003eQSKE\u003c\/strong\u003e is a thermal flow switch with a three-digit LED display and keys on the device. According to the datasheet it is intended for water, oil and air.\u003c\/p\u003e\u003cp\u003eThermal measuring principle; the signal is conditioned and put out as a switching signal. A measuring range is not documented in the datasheet, nor are accuracy, repeatability or hysteresis. One switch output on pin 4, \u003cstrong\u003ePNP or NPN\u003c\/strong\u003e, normally open or normally closed, all settable at the keys, PNP as factory setting. Switching load \u0026lt; 200 mA. Supply \u003cstrong\u003e12 … 30 V DC\u003c\/strong\u003e, no-load current ≤ 30 mA, response time 1 … 13 s. Display \u003cstrong\u003ethree digits, red LED\u003c\/strong\u003e, reading in per cent, setting by two keys − and +. Connection \u003cstrong\u003eM12 × 1\u003c\/strong\u003e, four pins.\u003c\/p\u003e\u003cp\u003eProbe and process connection in 304 stainless steel, housing in engineering plastic moulded in one piece, turnable through 330°. Process connection G1\/2, G1\/4, R1\/2 or R1\/4 male, M18 × 1.5 female or clamp 25.4 mm or 50.5 mm to ISO 2852:1993, probe lengths 30, 50, 60, 70, 80 and 100 mm. Medium temperature \u003cstrong\u003e-20 … +85 °C\u003c\/strong\u003e, ambient -20 … +80 °C, protection \u003cstrong\u003eIP67\u003c\/strong\u003e. IP67 and a CE mark are printed on the device shown; a declaration of conformity is not documented in the datasheet. Before sizing, note: No measuring range is documented, and without it the device cannot be sized. No pressure rating is given. The datasheet does not say what the percentage display refers to.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eThree-digit red LED display on the device\u003c\/li\u003e\u003cli\u003eSwitching point settable by two keys\u003c\/li\u003e\u003cli\u003ePNP or NPN, normally open or normally closed settable\u003c\/li\u003e\u003cli\u003eSupply 12 … 30 V DC\u003c\/li\u003e\u003cli\u003eProbe and process connection 304 stainless steel\u003c\/li\u003e\u003cli\u003eClamp connection to ISO 2852:1993 available\u003c\/li\u003e\u003cli\u003eHousing turnable through 330°\u003c\/li\u003e\u003cli\u003eProtection IP67\u003c\/li\u003e\u003cli\u003eProtection against reverse polarity, overload and short circuit\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453578584390,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKE_produkt.webp?v=1790331873"},{"product_id":"qskf-kalorimetrischer-stromungswachter-aluminiumgussgehause","title":"QSKF calorimetric flow switch, cast aluminium housing","description":"\u003cp\u003eThe \u003cstrong\u003eQSKF\u003c\/strong\u003e is a calorimetric flow switch in a painted cast aluminium housing, described as an explosion-proof version. It is particularly suited to water, cutting fluid, lubricating oil and air in pneumatic and hydraulic systems, and to pump dry-running protection.\u003c\/p\u003e\u003cp\u003eA heated and an unheated resistor in the probe sense the flow velocity. Setting range: \u003cstrong\u003e1 … 150 cm\/s water\u003c\/strong\u003e, \u003cstrong\u003e3 … 300 cm\/s oil\u003c\/strong\u003e, \u003cstrong\u003e20 … 2000 cm\/s air\u003c\/strong\u003e, by a potentiometer with the cover unscrewed. Accuracy and repeatability are not documented. Output \u003cstrong\u003ePNP, NPN or relay (SPDT)\u003c\/strong\u003e, switching current ≤ 400 mA or ≤ 4 A (relay). Supply \u003cstrong\u003e24 V DC ± 20 %\u003c\/strong\u003e, no-load current ≤ 80 mA, response time 1 … 13 s, typically 2 s. Terminal strip in the housing, \u003cstrong\u003eM20 × 1.5\u003c\/strong\u003e cable entry.\u003c\/p\u003e\u003cp\u003eProbe in stainless steel, housing in cast aluminium, painted. Process connection G1\/2, G1\/4, Rc1\/2 or Rc1\/4 male or M18 × 1.5 female. Pressure rating \u003cstrong\u003e100 bar\u003c\/strong\u003e, medium temperature \u003cstrong\u003e-20 … +80 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP67\u003c\/strong\u003e. The datasheet states \u003cstrong\u003eEx d IIC T6\u003c\/strong\u003e; a certificate is not documented. A declaration of conformity is not documented in the datasheet. Before sizing, note: The explosion protection is optional in the order code, and a certificate and a separate ambient range for explosion-proof service are missing. Data block and order code disagree on the supply; only 24 V DC can be ordered. The setting range is a flow velocity; the flow rate depends on the pipe bore.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eCalorimetric principle with no moving parts\u003c\/li\u003e\u003cli\u003eHousing in painted cast aluminium\u003c\/li\u003e\u003cli\u003eOutput PNP, NPN or SPDT relay\u003c\/li\u003e\u003cli\u003eM20 × 1.5 cable entry with terminal strip\u003c\/li\u003e\u003cli\u003ePressure rating 100 bar at the switch\u003c\/li\u003e\u003cli\u003eProtection IP67\u003c\/li\u003e\u003cli\u003eEight LEDs behind a window\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453578617158,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKF_produkt.webp?v=1790331873"},{"product_id":"qskg-kolben-stromungswachter-edelstahl","title":"QSKG piston flow switch, stainless steel","description":"\u003cp\u003eThe \u003cstrong\u003eQSKG\u003c\/strong\u003e is a mechanical piston flow switch with a magnetic piston and the switching element outside the medium. It is particularly suited to liquids in hydraulics, lubrication and circulating systems.\u003c\/p\u003e\u003cp\u003eA magnetic piston on a precision spring is displaced by the flow, and the magnet operates a microswitch or reed contact outside the wetted part. Setting ranges by size \u003cstrong\u003e0.8 … 5\u003c\/strong\u003e, 2 … 12, 3 … 30, 5 … 40 and \u003cstrong\u003e6 … 60 L\/min\u003c\/strong\u003e. Repeatability \u003cstrong\u003e≤ ± 3 % of range\u003c\/strong\u003e; an accuracy is not documented. Output one \u003cstrong\u003echangeover contact\u003c\/strong\u003e, switching capacity \u003cstrong\u003e240 V AC \/ 110 V DC, 1.5 A\u003c\/strong\u003e. The datasheet names no supply voltage. Connection \u003cstrong\u003eM12 × 1\u003c\/strong\u003e. An optional pointer head shows the instantaneous flow in L\/min between the marks min and max.\u003c\/p\u003e\u003cp\u003eSwitch housing and spring in stainless steel, electronic enclosure in PC, weight 1.2 … 1.4 kg by size. Process connection G1\/4, G3\/8, G1\/2, G3\/4 or G1 female. Pressure rating \u003cstrong\u003e200 bar\u003c\/strong\u003e (stainless steel), ambient temperature \u003cstrong\u003e-20 … +70 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP65\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: A medium temperature is not documented. The 3 … 30 L\/min range has no field in the order code. The pointer head has no order field.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMechanical principle, no electronics in the medium\u003c\/li\u003e\u003cli\u003eMechanical and electrical parts completely separated\u003c\/li\u003e\u003cli\u003eFive setting ranges from 0.8 to 60 L\/min\u003c\/li\u003e\u003cli\u003eRepeatability ≤ ± 3 % of range\u003c\/li\u003e\u003cli\u003eChangeover contact up to 240 V AC \/ 110 V DC, 1.5 A\u003c\/li\u003e\u003cli\u003ePressure rating 200 bar with stainless body\u003c\/li\u003e\u003cli\u003eFemale thread G1\/4 to G1\u003c\/li\u003e\u003cli\u003eProtection IP65, M12 × 1 connection\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453604864326,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKG_produkt.webp?v=1790331873"},{"product_id":"qskh-kolben-stromungswachter-messing-vernickelt","title":"QSKH piston flow switch, nickel-plated brass","description":"\u003cp\u003eThe \u003cstrong\u003eQSKH\u003c\/strong\u003e is a mechanical in-line piston flow switch with body and piston in nickel-plated brass. It is particularly suited to liquids in industrial equipment, cooling and lubrication.\u003c\/p\u003e\u003cp\u003eA magnetic piston on a spring is displaced by the flow, and the magnet closes a reed contact outside the wetted part. Setting range in seven sizes from \u003cstrong\u003e2 … 9\u003c\/strong\u003e to \u003cstrong\u003e50 … 200 L\/min\u003c\/strong\u003e, switching point set on an engraved scale calibrated in water at 20 °C with horizontal mounting. Accuracy ± 5 of the total range, for which the datasheet gives no unit. Hysteresis depends on the switching point, at least 0.6 L\/min. Output \u003cstrong\u003ereed contact, one changeover\u003c\/strong\u003e, switching capacity \u003cstrong\u003e24 V DC \/ 1 A\u003c\/strong\u003e. The datasheet names no supply voltage. Connection M12 connector or rectangular plug.\u003c\/p\u003e\u003cp\u003eBody and piston in nickel-plated brass, spring stainless steel, seal NBR. Process connection female thread G or R from 1\/2 to 1½ inch by size. Pressure rating \u003cstrong\u003e100 bar\u003c\/strong\u003e, pressure loss ≤ 0.5 bar at 25 L\/min, medium temperature \u003cstrong\u003e≤ 90 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP67\u003c\/strong\u003e with M12 or \u003cstrong\u003eIP65\u003c\/strong\u003e with rectangular plug. A declaration of conformity is not documented in the datasheet. Before sizing, note: An ambient temperature is not documented. Mounting position, medium and temperature shift the switching value, and the datasheet does not say by how much. The accuracy figure ± 5 is given without a unit.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMechanical principle with reed contact outside the medium\u003c\/li\u003e\u003cli\u003eMechanical and electrical parts completely separated\u003c\/li\u003e\u003cli\u003eSeven sizes up to 200 L\/min\u003c\/li\u003e\u003cli\u003eEngraved setting scale, no flow rig needed\u003c\/li\u003e\u003cli\u003ePressure rating 100 bar\u003c\/li\u003e\u003cli\u003eMedium temperature up to 90 °C\u003c\/li\u003e\u003cli\u003eChangeover contact 24 V DC \/ 1 A\u003c\/li\u003e\u003cli\u003eProtection IP67 with M12 connector\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453604897094,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKH_produkt.webp?v=1790331873"},{"product_id":"qski-kolben-stromungswachter-drei-gehausewerkstoffe","title":"QSKI piston flow switch, three housing materials","description":"\u003cp\u003eThe \u003cstrong\u003eQSKI\u003c\/strong\u003e is a mechanical in-line piston flow switch with a housing in plastic, aluminium or stainless steel. It is particularly suited to liquids and gases in industrial automation, machinery, air compression, refrigeration and air conditioning.\u003c\/p\u003e\u003cp\u003eA magnetic piston on a spring is displaced by the flow, and the magnet closes a reed contact outside the wetted part. Setting range in six order fields from \u003cstrong\u003e0.3 … 7\u003c\/strong\u003e to \u003cstrong\u003e27 … 70 L\/min\u003c\/strong\u003e, setting scale on the body calibrated in water at 20 °C. Accuracy ± 5 of the total range, for which the datasheet gives no unit. Hysteresis at least 0.6 L\/min. Output \u003cstrong\u003edry reed contact\u003c\/strong\u003e, normally open, \u003cstrong\u003eone or two switch points\u003c\/strong\u003e, switching capacity 24 V DC \/ 250 V AC, 100 mA. Supply \u003cstrong\u003e24 V DC ± 20 %\u003c\/strong\u003e or \u003cstrong\u003e230 V AC ± 15 %\u003c\/strong\u003e by order code, status LED on DC only. Connection \u003cstrong\u003eM12\u003c\/strong\u003e, four pins.\u003c\/p\u003e\u003cp\u003eHousing in POM (\u003cstrong\u003e10 bar\u003c\/strong\u003e), anodised aluminium (\u003cstrong\u003e50 bar\u003c\/strong\u003e) or stainless steel (\u003cstrong\u003e100 bar\u003c\/strong\u003e), piston POM, spring stainless steel, seal NBR. Process connection female thread G1\/4 to G1. Pressure loss 0.3 bar at 25 L\/min, medium temperature \u003cstrong\u003e≤ 90 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP67\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: The parameter table gives 50 bar for every model; the housing material decides, and the plastic version holds 10 bar. The 5 … 40 L\/min order field has no row in the parameter table. Not every thread is offered in every range, and the order code rejects no combination.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMechanical principle with reed contact outside the medium\u003c\/li\u003e\u003cli\u003eHousing in POM, aluminium or stainless steel\u003c\/li\u003e\u003cli\u003eUp to 100 bar with stainless housing\u003c\/li\u003e\u003cli\u003eOne or two switch points\u003c\/li\u003e\u003cli\u003eSupply 24 V DC or 230 V AC\u003c\/li\u003e\u003cli\u003eSetting scale on the body\u003c\/li\u003e\u003cli\u003eFor liquids and gases\u003c\/li\u003e\u003cli\u003eProtection IP67\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453615677766,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKI_produkt.webp?v=1790331900"},{"product_id":"qskj-kolben-stromungswachter-mit-l-min-skala","title":"QSKJ piston flow switch with L\/min scale","description":"\u003cp\u003eThe \u003cstrong\u003eQSKJ\u003c\/strong\u003e is a mechanical in-line piston flow switch with a scale in L\/min on the body. It is particularly suited to liquids and gases in industrial automation, machinery, air compression, refrigeration and air conditioning.\u003c\/p\u003e\u003cp\u003eA magnetic piston on a spring is displaced by the flow, and the magnet closes a reed contact outside the wetted part. Setting range in four order fields: \u003cstrong\u003e0.6 … 8\u003c\/strong\u003e, 1 … 15, 2 … 25 and \u003cstrong\u003e27 … 70 L\/min\u003c\/strong\u003e. Scale on the body \u003cstrong\u003e1 … 13 L\/min\u003c\/strong\u003e, marked H2O 20 °C. Accuracy \u003cstrong\u003e5 % of the total range\u003c\/strong\u003e, hysteresis at least 0.6 L\/min. Output \u003cstrong\u003edry reed contact\u003c\/strong\u003e, normally open, \u003cstrong\u003eone or two switch points\u003c\/strong\u003e, switching capacity 24 V DC \/ 250 V AC, 100 mA. Supply \u003cstrong\u003e24 V DC ± 20 %\u003c\/strong\u003e or \u003cstrong\u003e230 V AC ± 15 %\u003c\/strong\u003e by order code, status LED on DC only. Connection \u003cstrong\u003eM12\u003c\/strong\u003e, four pins.\u003c\/p\u003e\u003cp\u003eHousing in POM (\u003cstrong\u003e10 bar\u003c\/strong\u003e), anodised aluminium (\u003cstrong\u003e50 bar\u003c\/strong\u003e) or stainless steel (\u003cstrong\u003e100 bar\u003c\/strong\u003e), piston POM, spring stainless steel, seal NBR. Process connection female thread G1\/4 to G1. Pressure loss 0.3 bar at 25 L\/min, medium temperature \u003cstrong\u003e≤ 90 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP67\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: The parameter table gives 40 L\/min as maximum flow for every model, including the 27 … 70 L\/min range. The scale is valid for water at 20 °C only; for other media the switching point has to be checked against a known flow. The parameter table gives 50 bar for every model; the housing material decides, and the plastic version holds 10 bar.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eScale in L\/min directly on the body\u003c\/li\u003e\u003cli\u003eMechanical principle with reed contact outside the medium\u003c\/li\u003e\u003cli\u003eAccuracy 5 % of the total range\u003c\/li\u003e\u003cli\u003eHousing in POM, aluminium or stainless steel\u003c\/li\u003e\u003cli\u003eOne or two switch points\u003c\/li\u003e\u003cli\u003eSupply 24 V DC or 230 V AC\u003c\/li\u003e\u003cli\u003eFor liquids and gases\u003c\/li\u003e\u003cli\u003eProtection IP67\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453615710534,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKJ_produkt.webp?v=1790331900"},{"product_id":"qskk-kolben-stromungswachter-fur-zentralschmierung","title":"QSKK piston flow switch for centralised lubrication","description":"\u003cp\u003eThe \u003cstrong\u003eQSKK\u003c\/strong\u003e is a mechanical piston flow switch for small flows in one size with G1\/4 and 65 mm overall length. It is particularly suited to centralised lubrication and to liquids in industrial automation and machinery.\u003c\/p\u003e\u003cp\u003eA magnetic piston on a spring is displaced by the flow, and the magnet closes a reed contact outside the wetted part. Setting range \u003cstrong\u003e0.03 … 1.2 L\/min\u003c\/strong\u003e, scale on the body calibrated in \u003cstrong\u003elubricating oil 46 at 20 °C\u003c\/strong\u003e with horizontal mounting. Accuracy \u003cstrong\u003e± 5 % of the total range\u003c\/strong\u003e; a hysteresis is not documented as a figure. Output \u003cstrong\u003edry reed contact\u003c\/strong\u003e, normally open, \u003cstrong\u003eone or two switch points\u003c\/strong\u003e, switching capacity 24 V DC \/ 250 V AC, 100 mA. Supply \u003cstrong\u003e24 V DC ± 20 %\u003c\/strong\u003e or \u003cstrong\u003e230 V AC ± 15 %\u003c\/strong\u003e by order code, status LED on DC only. Connection M12 or cable.\u003c\/p\u003e\u003cp\u003eHousing in nickel-plated brass, anodised aluminium or 304 stainless steel, piston brass, spring stainless steel. Process connection \u003cstrong\u003eG1\/4\u003c\/strong\u003e female. Pressure rating \u003cstrong\u003e50 bar\u003c\/strong\u003e (brass, aluminium) or \u003cstrong\u003e100 bar\u003c\/strong\u003e (stainless steel), medium temperature \u003cstrong\u003e≤ 100 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP65\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: The scale is calibrated in lubricating oil; for other media or temperatures the switching point has to be checked against a known flow. Data block and order code name the housing materials differently (copper or nickel-plated brass). An ambient temperature is not documented.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eSetting range for small flows from 0.03 L\/min\u003c\/li\u003e\u003cli\u003eScale calibrated in lubricating oil 46\u003c\/li\u003e\u003cli\u003eAccuracy ± 5 % of the total range\u003c\/li\u003e\u003cli\u003eOne or two switch points\u003c\/li\u003e\u003cli\u003eHousing in brass, aluminium or 304 stainless steel\u003c\/li\u003e\u003cli\u003eUp to 100 bar with stainless housing\u003c\/li\u003e\u003cli\u003eMedium temperature up to 100 °C\u003c\/li\u003e\u003cli\u003eCompact size G1\/4, 65 mm\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453615743302,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKK_produkt.webp?v=1790331901"},{"product_id":"qskl-paddel-stromungswachter-anschluss-messing","title":"QSKL paddle flow switch, brass connection","description":"\u003cp\u003eThe \u003cstrong\u003eQSKL\u003c\/strong\u003e is a mechanical screw-in paddle flow switch for pipes from DN25 to DN150. It is particularly suited to liquids and gases in industrial automation, machinery, air compression, refrigeration and air conditioning.\u003c\/p\u003e\u003cp\u003eA spring-loaded paddle (baffle) stands across the pipe; the flow deflects it and a linkage operates a microswitch. Setting range across the product \u003cstrong\u003e20 … 1800 L\/min\u003c\/strong\u003e, set by the pipe bore and the paddle fitted. Five paddles (31 … 132 mm long) are supplied. Repeatability \u003cstrong\u003e± 2.5 % of the total range\u003c\/strong\u003e; an accuracy is not documented; hysteresis 8 … 80 L\/min by bore and paddle. Output \u003cstrong\u003emicroswitch, SPDT\u003c\/strong\u003e, switching capacity \u003cstrong\u003e250 V AC, 3 A\u003c\/strong\u003e. Connection via screw terminals, with a PG7 gland on the IP67 case.\u003c\/p\u003e\u003cp\u003eBody and paddle in stainless steel, process connection and connecting rod in brass, seal NBR, outer housing ABS, weight 0.55 kg. Process connection \u003cstrong\u003eR1\u003c\/strong\u003e male. Pressure rating \u003cstrong\u003e16 bar\u003c\/strong\u003e, pressure loss 0.08 bar at maximum flow, medium temperature \u003cstrong\u003e90 °C\u003c\/strong\u003e, ambient -25 … +80 °C, protection \u003cstrong\u003eIP33\u003c\/strong\u003e, IP67 with the optional case. A declaration of conformity is not documented in the datasheet. Before sizing, note: As supplied the switch is only IP33, and the IP67 case is needed for outdoor or washdown duty. Stainless steel and brass in the same wetted path form a galvanic cell in conductive water. The data block (90 °C) and the rating plate (120 °C) give different temperatures.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMechanical principle, mechanical and electrical parts separated\u003c\/li\u003e\u003cli\u003eFive paddles supplied\u003c\/li\u003e\u003cli\u003eOne device for pipes from DN25 to DN150\u003c\/li\u003e\u003cli\u003eRepeatability ± 2.5 % of the total range\u003c\/li\u003e\u003cli\u003eSPDT contact 250 V AC, 3 A\u003c\/li\u003e\u003cli\u003eLow pressure loss 0.08 bar\u003c\/li\u003e\u003cli\u003eFactory setting to the wanted switching value offered\u003c\/li\u003e\u003cli\u003eOptional IP67 protective case\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453615776070,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKL_produkt.webp?v=1790331901"},{"product_id":"qskm-paddel-stromungswachter-medienberuhrt-edelstahl","title":"QSKM all-stainless paddle flow switch","description":"\u003cp\u003eThe \u003cstrong\u003eQSKM\u003c\/strong\u003e is a mechanical screw-in paddle flow switch with body, process connection, connecting rod and paddle in stainless steel. It is particularly suited to liquids and gases in industrial automation, machinery, air compression, refrigeration and air conditioning in pipes of DN25 and above.\u003c\/p\u003e\u003cp\u003eA spring-loaded paddle (baffle) stands across the pipe; the flow deflects it and a linkage operates a microswitch. Setting range across the product \u003cstrong\u003e20 … 1800 L\/min\u003c\/strong\u003e, set by the pipe bore and the paddle fitted. Five paddles (31 … 132 mm long) are supplied. Repeatability \u003cstrong\u003e± 2.5 % of the total range\u003c\/strong\u003e; an accuracy is not documented; hysteresis 8 … 80 L\/min by bore and paddle. Output \u003cstrong\u003emicroswitch, SPDT\u003c\/strong\u003e, switching capacity \u003cstrong\u003e250 V AC, 3 A\u003c\/strong\u003e. Connection via screw terminals, with a PG7 gland on the IP67 case.\u003c\/p\u003e\u003cp\u003eAll four wetted parts in stainless steel; no steel grade is named. Seal NBR, outer housing ABS, weight 0.55 kg. Process connection \u003cstrong\u003eR1\u003c\/strong\u003e male. Pressure rating \u003cstrong\u003e16 bar\u003c\/strong\u003e, pressure loss 0.08 bar at maximum flow, medium temperature \u003cstrong\u003e90 °C\u003c\/strong\u003e, ambient -25 … +80 °C, protection \u003cstrong\u003eIP33\u003c\/strong\u003e, IP67 with the optional case. A declaration of conformity is not documented in the datasheet. Before sizing, note: As supplied the switch is only IP33, and the IP67 case is needed for outdoor or washdown duty. The data block (90 °C) and the rating plate (120 °C) give different temperatures. Bore, medium and switching value have to be given with the order; the order code has no field for them.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eAll wetted parts in stainless steel\u003c\/li\u003e\u003cli\u003eMechanical principle, mechanical and electrical parts separated\u003c\/li\u003e\u003cli\u003eFive paddles supplied\u003c\/li\u003e\u003cli\u003eSetting range 20 … 1800 L\/min by bore and paddle\u003c\/li\u003e\u003cli\u003eRepeatability ± 2.5 % of the total range\u003c\/li\u003e\u003cli\u003eSPDT contact 250 V AC, 3 A\u003c\/li\u003e\u003cli\u003eLow pressure loss 0.08 bar\u003c\/li\u003e\u003cli\u003eOptional IP67 protective case\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453617250630,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKM_produkt.webp?v=1790331901"},{"product_id":"qskn-paddel-stromungswachter-im-edelstahlgehause","title":"QSKN paddle flow switch in stainless enclosure","description":"\u003cp\u003eThe \u003cstrong\u003eQSKN\u003c\/strong\u003e is a mechanical screw-in paddle flow switch with wetted parts and terminal enclosure in stainless steel. It is particularly suited to liquids and gases in fire protection, chemicals, industrial automation, machinery, smelting and hydraulic lubrication.\u003c\/p\u003e\u003cp\u003eA spring-loaded paddle (baffle) stands across the pipe; the flow deflects it and a linkage operates a microswitch. Setting range across the product \u003cstrong\u003e20 … 1800 L\/min\u003c\/strong\u003e, set by the pipe bore and the paddle fitted. Five paddles (31 … 132 mm long) are supplied. Repeatability \u003cstrong\u003e± 2.5 % of the total range\u003c\/strong\u003e; an accuracy is not documented; hysteresis 8 … 80 L\/min by bore and paddle. Output \u003cstrong\u003emicroswitch, SPDT\u003c\/strong\u003e, switching capacity \u003cstrong\u003e250 V AC, 3 A\u003c\/strong\u003e. Connection via screw terminals and one cable entry.\u003c\/p\u003e\u003cp\u003eBody, process connection, connecting rod and paddle in stainless steel, terminal enclosure in stainless steel, weight 0.55 kg. Process connection \u003cstrong\u003eR1\u003c\/strong\u003e taper thread for pipes of DN25 and above. Pressure rating \u003cstrong\u003e16 bar\u003c\/strong\u003e per parameter table, pressure loss 0.08 bar at maximum flow, medium temperature up to 250 °C, ambient \u003cstrong\u003e-25 … +80 °C\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: As explosion protection the datasheet names only “EX CT4”, without type of protection, gas group or certificate, and T4 does not match 250 °C, so explosion protection is not substantiated. The pressure is 100 bar in the data block and 16 bar in the parameter table. No protection grade is given.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eWetted parts and enclosure in stainless steel\u003c\/li\u003e\u003cli\u003eMechanical principle, mechanical and electrical parts separated\u003c\/li\u003e\u003cli\u003eFive paddles supplied\u003c\/li\u003e\u003cli\u003eSetting range 20 … 1800 L\/min by bore and paddle\u003c\/li\u003e\u003cli\u003eRepeatability ± 2.5 % of the total range\u003c\/li\u003e\u003cli\u003eSPDT contact 250 V AC, 3 A\u003c\/li\u003e\u003cli\u003eLow pressure loss 0.08 bar\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453617283398,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKN_produkt.webp?v=1790331900"},{"product_id":"qsko-inline-paddel-stromungswachter-paddel-messing","title":"QSKO in-line paddle flow switch, brass paddle","description":"\u003cp\u003eThe \u003cstrong\u003eQSKO\u003c\/strong\u003e is a mechanical in-line paddle flow switch with a through-bore body for sizes DN15 to DN50. It is particularly suited to liquids and gases in industrial automation, machinery, air compression, refrigeration and air conditioning in pipes up to 50 mm.\u003c\/p\u003e\u003cp\u003eA spring-loaded paddle sits in the through bore; the flow deflects it and a linkage operates a microswitch. Setting range fixed by the model, twelve models from six bores with two paddles A and B each, from \u003cstrong\u003e1.5 … 10 L\/min\u003c\/strong\u003e to \u003cstrong\u003e50 … 150 L\/min\u003c\/strong\u003e, fine setting by a knob. Repeatability \u003cstrong\u003e± 2.5 of the total range\u003c\/strong\u003e, without a per cent sign in the datasheet; an accuracy is not documented; hysteresis 2 … 8 L\/min by model, measured with water at 20 °C. Output \u003cstrong\u003emicroswitch, normally open and normally closed\u003c\/strong\u003e, switching capacity \u003cstrong\u003e250 V AC, 3 A\u003c\/strong\u003e. Connection via screw terminals.\u003c\/p\u003e\u003cp\u003eBody stainless steel, process connection, connecting rod and paddle brass, seal NBR, outer housing ABS. Process connection female thread \u003cstrong\u003eR1\/2, R3\/4, R1, R1¼, R1½ or R2\u003c\/strong\u003e at both ends. Pressure rating \u003cstrong\u003e16 bar\u003c\/strong\u003e, medium temperature \u003cstrong\u003e90 °C\u003c\/strong\u003e, ambient -25 … +85 °C, protection \u003cstrong\u003eIP33\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: The IP67 case shown in the photograph has no order field. Three of the four wetted parts are brass, which with the stainless body forms a galvanic cell in conductive water.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eTwelve models from DN15 to DN50\u003c\/li\u003e\u003cli\u003eSwitching point set by a knob\u003c\/li\u003e\u003cli\u003eHysteresis documented for every model\u003c\/li\u003e\u003cli\u003eSPDT contact 250 V AC, 3 A\u003c\/li\u003e\u003cli\u003eMechanical and electrical parts completely separated\u003c\/li\u003e\u003cli\u003eFour mounting positions permitted\u003c\/li\u003e\u003cli\u003eSame female thread at both ends\u003c\/li\u003e\u003cli\u003eFactory setting to the wanted switching value offered\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453617316166,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKO_produkt.webp?v=1790331900"},{"product_id":"qskp-inline-paddel-stromungswachter-medienberuhrt-edelstahl","title":"QSKP all-stainless in-line paddle flow switch","description":"\u003cp\u003eThe \u003cstrong\u003eQSKP\u003c\/strong\u003e is a mechanical in-line paddle flow switch with a through-bore body in which body, process connection, connecting rod and paddle are all stainless steel. It is particularly suited to liquids and gases in industrial automation, machinery, air compression, refrigeration and air conditioning.\u003c\/p\u003e\u003cp\u003eA spring-loaded paddle sits in the through bore; the flow deflects it and a linkage operates a microswitch. Setting range fixed by the model, twelve models from six bores DN15 to DN50 with two paddles A and B each, from \u003cstrong\u003e4.2 … 18 L\/min\u003c\/strong\u003e to \u003cstrong\u003e50 … 150 L\/min\u003c\/strong\u003e, fine setting by a knob. Repeatability \u003cstrong\u003e± 2.5 of the total range\u003c\/strong\u003e, without a per cent sign in the datasheet; an accuracy is not documented; hysteresis 2 … 8 L\/min by model, measured with water at 20 °C. Output \u003cstrong\u003emicroswitch, normally open and normally closed\u003c\/strong\u003e, switching capacity \u003cstrong\u003e250 V AC, 3 A\u003c\/strong\u003e. Connection via screw terminals, numbered 3, 1 and 2 in the wiring diagram.\u003c\/p\u003e\u003cp\u003eAll four wetted parts in stainless steel, seal NBR, outer housing ABS. Process connection female thread \u003cstrong\u003eR1\/2, R3\/4, R1, R1¼, R1½ or R2\u003c\/strong\u003e at both ends. Pressure rating \u003cstrong\u003e16 bar\u003c\/strong\u003e, medium temperature \u003cstrong\u003e90 °C\u003c\/strong\u003e, ambient -25 … +120 °C, protection \u003cstrong\u003eIP33\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: For DN15 with paddle A the table gives 4.2 … 18 L\/min, the same as DN20, and this has to be settled with an enquiry for DN15. The IP67 case shown in the photograph has no order field. The medium limit of 90 °C governs, not the higher ambient limit.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eAll wetted parts in stainless steel\u003c\/li\u003e\u003cli\u003eTwelve models from DN15 to DN50\u003c\/li\u003e\u003cli\u003eSwitching point set by a knob\u003c\/li\u003e\u003cli\u003eHysteresis documented for every model\u003c\/li\u003e\u003cli\u003eSPDT contact 250 V AC, 3 A\u003c\/li\u003e\u003cli\u003eMechanical and electrical parts completely separated\u003c\/li\u003e\u003cli\u003eFour mounting positions permitted\u003c\/li\u003e\u003cli\u003eSame female thread at both ends\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453617348934,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKP_produkt.webp?v=1790331901"},{"product_id":"qskq-inline-paddel-stromungswachter-im-edelstahlgehause","title":"QSKQ in-line paddle flow switch in stainless enclosure","description":"\u003cp\u003eThe \u003cstrong\u003eQSKQ\u003c\/strong\u003e is a mechanical in-line paddle flow switch with wetted parts and terminal enclosure in stainless steel for sizes DN20 to DN40. It is particularly suited to liquids and gases in industrial automation, machinery, cooling, fire protection and petrochemicals.\u003c\/p\u003e\u003cp\u003eA spring-loaded paddle sits in the through bore; the flow deflects it and a linkage operates a microswitch. Setting range fixed by the model, eight models from four bores with two paddles A and B each, from \u003cstrong\u003e4.2 … 18 L\/min\u003c\/strong\u003e to \u003cstrong\u003e25 … 111 L\/min\u003c\/strong\u003e, fine setting by a knob. Repeatability \u003cstrong\u003e± 2.5 % of the total range\u003c\/strong\u003e; an accuracy is not documented; hysteresis 2 … 7 L\/min by model, measured with water at 20 °C. Output \u003cstrong\u003emicroswitch, normally open and normally closed\u003c\/strong\u003e, switching capacity \u003cstrong\u003e250 V AC, 3 A\u003c\/strong\u003e. Connection via screw terminals, numbered 3, 1 and 2.\u003c\/p\u003e\u003cp\u003eBody, process connection, connecting rod and paddle in stainless steel, terminal enclosure in stainless steel. Process connection taper thread \u003cstrong\u003eR3\/4, R1, R1¼ or R1½\u003c\/strong\u003e at both ends. Pressure rating \u003cstrong\u003e100 bar\u003c\/strong\u003e, pressure loss 0.08 bar at maximum flow, medium temperature \u003cstrong\u003e250 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP67\u003c\/strong\u003e. An Ex marking is not given in the datasheet. A declaration of conformity is not documented in the datasheet. Before sizing, note: Type of protection, temperature class and certificate are not documented, so explosion protection is not substantiated. An ambient temperature is not documented. Neither a thread size nor a gland is given for the cable entry.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eWetted parts and enclosure in stainless steel\u003c\/li\u003e\u003cli\u003ePressure rating 100 bar\u003c\/li\u003e\u003cli\u003eMedium temperature up to 250 °C\u003c\/li\u003e\u003cli\u003eProtection IP67\u003c\/li\u003e\u003cli\u003eRepeatability ± 2.5 % of the total range\u003c\/li\u003e\u003cli\u003eSwitching point set by a knob\u003c\/li\u003e\u003cli\u003eSPDT contact 250 V AC, 3 A\u003c\/li\u003e\u003cli\u003eLow pressure loss 0.08 bar\u003c\/li\u003e\u003cli\u003eFour mounting positions permitted\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453620691270,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKQ_produkt.webp?v=1790331901"},{"product_id":"qskr-paddel-stromungswachter-im-t-stuck","title":"QSKR paddle flow switch in tee","description":"\u003cp\u003eThe \u003cstrong\u003eQSKR\u003c\/strong\u003e is a mechanical paddle flow switch in a tee without bellows, with the magnet outside the flowing water. It is particularly suited to liquids and gases in industrial automation, machinery, air compression and refrigeration, and according to the datasheet also to sewage because of the magnet position.\u003c\/p\u003e\u003cp\u003eA spring-loaded paddle hangs into the tee; the flow deflects it and a microswitch above operates. Flow range in water \u003cstrong\u003e5.3 … 7.2 L\/min\u003c\/strong\u003e at DN15 up to \u003cstrong\u003e16 … 22 L\/min\u003c\/strong\u003e at DN25, with a second paddle in each size. The reset point is documented for each size. Accuracy and repeatability are not documented as figures. Output \u003cstrong\u003emicroswitch, SPDT\u003c\/strong\u003e, one or two switch points, normally open by default, \u003cstrong\u003e5 A\u003c\/strong\u003e, up to \u003cstrong\u003e250 V AC\u003c\/strong\u003e without status indicator; with the optional status indicator the supply is \u003cstrong\u003e24 V DC ± 10 %\u003c\/strong\u003e. Setting by a knob, connection \u003cstrong\u003eDIN 43650A\u003c\/strong\u003e connector or 0.8 m cable.\u003c\/p\u003e\u003cp\u003eWetted body in nickel-plated brass, paddle stainless steel, seal NBR. Process connection tee with \u003cstrong\u003eG1\/2 to G2\u003c\/strong\u003e, female or male ends. Pressure rating \u003cstrong\u003e25 bar\u003c\/strong\u003e, higher on request, pressure loss \u003cstrong\u003e0.01 bar\u003c\/strong\u003e at maximum flow, operating temperature \u003cstrong\u003e-10 … +80 °C\u003c\/strong\u003e, protection \u003cstrong\u003eIP65\u003c\/strong\u003e. A declaration of conformity is not documented in the datasheet. Before sizing, note: Flow figures are given for DN15 to DN25 only and are missing for DN32 to DN50. DN40 and DN50 are marked stainless only and cannot be ordered. The status indicator and 250 V AC are mutually exclusive, and the indicator has no order field.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eNo bellows, magnet outside the flowing water\u003c\/li\u003e\u003cli\u003eAction and reset point documented for each size\u003c\/li\u003e\u003cli\u003eVery low pressure loss 0.01 bar\u003c\/li\u003e\u003cli\u003eSPDT contact 5 A up to 250 V AC\u003c\/li\u003e\u003cli\u003eOne or two switch points\u003c\/li\u003e\u003cli\u003eSwitching point set by a knob\u003c\/li\u003e\u003cli\u003eDIN 43650A connector or cable\u003c\/li\u003e\u003cli\u003ePressure rating 25 bar, protection IP65\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453620724038,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QSKR_produkt.webp?v=1790331901"}],"url":"https:\/\/octogon.org\/en\/collections\/flow-monitors-qs.oembed","provider":"octogon GmbH","version":"1.0","type":"link"}