{"title":"Flow - Gear (QZ)","description":"","products":[{"product_id":"qzka-zahnrad-durchflussmesser-mit-farbdisplay","title":"QZKA gear flowmeter with colour display","description":"\u003cp\u003eThe \u003cstrong\u003eQZKA\u003c\/strong\u003e is a positive displacement gear flowmeter for small and viscous flows. It is particularly suited to oils, fats, fuels, resins, adhesives, solvents, inks and refrigerants up to a viscosity of 10 000 Pa·s.\u003c\/p\u003e\u003cp\u003eTwo meshing gears displace a fixed volume per revolution, measuring range \u003cstrong\u003e5 mL\/min … 150 L\/min\u003c\/strong\u003e in seven sizes, accuracy \u003cstrong\u003e± 0.5 % of full scale\u003c\/strong\u003e, repeatability \u003cstrong\u003e± 0.2 % of full scale\u003c\/strong\u003e. Version A3: two switches PNP\/NPN and analog \u003cstrong\u003e4 … 20 mA, 1 … 5 V or 0 … 10 V\u003c\/strong\u003e; AR: \u003cstrong\u003eRS485\u003c\/strong\u003e plus analog; SA: analog for flow and temperature, switch, pulse and \u003cstrong\u003eIO-Link\u003c\/strong\u003e. Supply \u003cstrong\u003e12 … 30 V DC\u003c\/strong\u003e, plug \u003cstrong\u003eM12 × 1\u003c\/strong\u003e, five-pin. Colour display with flow, percentage of range and totalized volume, three keys.\u003c\/p\u003e\u003cp\u003eBody of aluminium (40 bar), stainless steel 304 or 316 (100 · 250 · 400 bar) or PP (10 bar); seal FKM up to 200 bar, PTFE above 200 bar or EPDM. Process connection G1\/4 … G1 by size, two mounting threads M5, M6 or M8. Medium temperature -30 … +120 °C, +140 °C with code T (not for aluminium and PP). The protection grade is not documented and the sheet names no CE mark. A declaration of conformity is not documented in the datasheet. Before sizing, note: the pressure statements disagree, and FKM stops at 200 bar although 250 and 400 bar bodies are offered. The accuracy refers to full scale, not to the reading. A filter finer than 100 mesh is required ahead of the meter.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003ePositive displacement, reading independent of density and viscosity\u003c\/li\u003e\u003cli\u003eSeven sizes from 5 mL\/min to 150 L\/min\u003c\/li\u003e\u003cli\u003eRepeatability ± 0.2 % of full scale\u003c\/li\u003e\u003cli\u003eOutputs 4 … 20 mA, PNP\/NPN, pulse, RS485, IO-Link\u003c\/li\u003e\u003cli\u003eColour display with totalizer and three keys\u003c\/li\u003e\u003cli\u003eStainless steel body up to 400 bar\u003c\/li\u003e\u003cli\u003eHigh-temperature option up to +140 °C\u003c\/li\u003e\u003cli\u003eTemperature output in version SA\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453638910278,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QZKA_produkt.webp?v=1790331901"},{"product_id":"qzkb-zahnrad-durchflussmesser-fur-plattenmontage","title":"QZKB plate-mounted gear flowmeter","description":"\u003cp\u003eThe \u003cstrong\u003eQZKB\u003c\/strong\u003e is a gear flowmeter for mounting on a machined plate instead of in a pipe. It is particularly suited to additive fuels, corrosion inhibitors, catalysts, emulsifiers, oils, fats, fragrances, adhesives, solvents, inks and insecticides in systems up to 400 bar.\u003c\/p\u003e\u003cp\u003ePositive displacement with two meshing gears, no straight inlet run needed. Measuring range \u003cstrong\u003e50 mL\/min … 350 L\/min\u003c\/strong\u003e in seven steps, accuracy \u003cstrong\u003e± 0.5 % of full scale\u003c\/strong\u003e, repeatability \u003cstrong\u003e± 0.2 % of full scale\u003c\/strong\u003e. Output A3: two switches PNP or NPN or pulse, OUT3 \u003cstrong\u003e4 … 20 mA, 1 … 5 V or 0 … 10 V\u003c\/strong\u003e; AR: \u003cstrong\u003eRS485\u003c\/strong\u003e plus analog; SA: flow or temperature as switch, pulse, analog or \u003cstrong\u003eIO-Link\u003c\/strong\u003e. Supply \u003cstrong\u003e16 … 30 V DC\u003c\/strong\u003e, plug \u003cstrong\u003eM12 × 1\u003c\/strong\u003e, five-pin. Colour display with instantaneous flow, totalized volume and raw frequency, three keys.\u003c\/p\u003e\u003cp\u003eHousing of stainless steel (grade not named), display housing of stainless steel or engineering plastic, seal FKM. Pressure \u003cstrong\u003e400 bar\u003c\/strong\u003e. Medium temperature -30 … +120 °C, +140 °C with field T of the order code. Plate mounting with two sealing grooves; the 350 L\/min size has a SAE 1¼ inch 6000 PSI flange face. The protection grade is not documented. A declaration of conformity is not documented in the datasheet. Before sizing, note: the supply is given as 16 … 30 V DC in the data block and 12 … 30 V DC in the wiring diagram; design for 16 … 30 V DC until clarified. Without a stated K-factor the pulse output cannot be scaled. The mounting plate is drawn for only four of the seven ranges.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003ePlate mounting without straight inlet run\u003c\/li\u003e\u003cli\u003ePressure up to 400 bar\u003c\/li\u003e\u003cli\u003eSeven ranges from 50 mL\/min to 350 L\/min\u003c\/li\u003e\u003cli\u003eRepeatability ± 0.2 % of full scale\u003c\/li\u003e\u003cli\u003eOutputs 4 … 20 mA, PNP\/NPN, pulse, RS485 or IO-Link\u003c\/li\u003e\u003cli\u003eTemperature output in version SA\u003c\/li\u003e\u003cli\u003eColour display with totalizer and frequency page\u003c\/li\u003e\u003cli\u003eAccuracy stated as unaffected by pressure and flow changes\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453640909126,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QZKB_produkt.webp?v=1790331901"},{"product_id":"qzkd-zahnrad-durchflussmesser-ohne-anzeige","title":"QZKD gear flowmeter without display","description":"\u003cp\u003eThe \u003cstrong\u003eQZKD\u003c\/strong\u003e is a gear flowmeter without display and without keys that puts out a current or a pulse. It is particularly suited to fuels, oils, fats, adhesives, solvents, inks and insecticides where evaluation and totalizing take place outside the device.\u003c\/p\u003e\u003cp\u003ePositive displacement with two meshing gears, no straight inlet run needed. Measuring range \u003cstrong\u003e50 mL\/min … 150 L\/min\u003c\/strong\u003e in seven sizes, one of them 5 … 2000 mL\/min. Accuracy \u003cstrong\u003e± 0.5 % of full scale\u003c\/strong\u003e, repeatability \u003cstrong\u003e± 0.1 % of full scale\u003c\/strong\u003e. Output A: \u003cstrong\u003e4 … 20 mA two-wire\u003c\/strong\u003e in the supply loop; output P: pulse, three-wire. Supply \u003cstrong\u003e16 … 30 V DC\u003c\/strong\u003e per the data block. Connection rectangular connector (factory default) or \u003cstrong\u003eM12 × 1\u003c\/strong\u003e, four-pin.\u003c\/p\u003e\u003cp\u003eBody of aluminium (40 bar), stainless steel 304 or 316 (each 100, 250 or 400 bar) or PP (10 bar), seal FKM or PTFE for corrosive media. Process connection female thread G1\/4 … G1. Medium temperature -30 … +120 °C, high-temperature version on request, not for aluminium and PP. The protection grade is not documented in the text; IP65 and a CE mark are visible only on the rating plate in the product photograph. A declaration of conformity is not documented in the datasheet. Before sizing, note: a PNP\/NPN switching output is named in the data block but cannot be ordered. The rating plate in the photograph reads DC 5 … 24 V, contradicting the data block. The high-temperature limit is given once as 150 °C and once as 140 °C.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003ePositive displacement, no straight inlet run needed\u003c\/li\u003e\u003cli\u003eRepeatability ± 0.1 % of full scale\u003c\/li\u003e\u003cli\u003eOutput 4 … 20 mA two-wire or pulse\u003c\/li\u003e\u003cli\u003eSeven sizes, female thread G1\/4 … G1\u003c\/li\u003e\u003cli\u003eStainless steel body up to 400 bar\u003c\/li\u003e\u003cli\u003eBody of aluminium, stainless steel 304\/316 or PP\u003c\/li\u003e\u003cli\u003ePTFE seal for corrosive media\u003c\/li\u003e\u003cli\u003eRectangular connector or M12 × 1\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453641269574,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QZKD_produkt.webp?v=1790331901"},{"product_id":"qzkf-zahnrad-durchflussmesser-optional-oled-anzeige","title":"QZKF gear flowmeter, optional OLED display","description":"\u003cp\u003eThe \u003cstrong\u003eQZKF\u003c\/strong\u003e is a gear flowmeter for flow rates from 2 to 350 L\/min in six sizes. It is particularly suited to fuels, oils, fats, adhesives, solvents, inks and insecticides and is also available in a flameproof version with a cast housing.\u003c\/p\u003e\u003cp\u003ePositive displacement with two meshing gears, no straight inlet run needed. Measuring range \u003cstrong\u003e2 … 350 L\/min\u003c\/strong\u003e, accuracy \u003cstrong\u003e± 0.5 % of full scale\u003c\/strong\u003e, repeatability \u003cstrong\u003e± 0.1 % of full scale\u003c\/strong\u003e. Outputs PAF\/NAF: switch PNP or NPN, pulse and \u003cstrong\u003e4 … 20 mA\u003c\/strong\u003e together, with \u003cstrong\u003eOLED display\u003c\/strong\u003e; HP\/HA\/MP\/MA: pulse or 4 … 20 mA only. Supply \u003cstrong\u003e16 … 30 V DC\u003c\/strong\u003e per the data block. Connection rectangular connector or \u003cstrong\u003eM12 × 1\u003c\/strong\u003e, five-pin.\u003c\/p\u003e\u003cp\u003eBody of aluminium (150 bar) or stainless steel 304 or 316L (400 bar), seal FKM or PTFE for corrosive media. Process connection female thread G1\/2 … G2 or M42 × 2. Medium temperature as technical parameter -30 … +80 °C, 150 °C on request. The protection grade is not documented. The flameproof version (order field E) has a cast housing with two cable entries; the sheet names no Ex marking. A declaration of conformity is not documented in the datasheet. Before sizing, note: the medium temperature is stated four different ways; only -30 … +80 °C is firm. The 20 … 200 L\/min size is printed with G1\/4, so its thread must be confirmed before ordering. Without a marking the flameproof version cannot be used in a hazardous area.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003ePositive displacement, no straight inlet run needed\u003c\/li\u003e\u003cli\u003eSix sizes up to 350 L\/min\u003c\/li\u003e\u003cli\u003eRepeatability ± 0.1 % of full scale\u003c\/li\u003e\u003cli\u003eSwitch, pulse and 4 … 20 mA output combined\u003c\/li\u003e\u003cli\u003eOLED display in version PAF\/NAF\u003c\/li\u003e\u003cli\u003eStainless steel body up to 400 bar\u003c\/li\u003e\u003cli\u003eFemale thread up to G2 or M42 × 2\u003c\/li\u003e\u003cli\u003ePTFE seal for corrosive media\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453641302342,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QZKF_produkt.webp?v=1790331901"},{"product_id":"qzkh-ovalrad-durchflussmesser-mit-mechanischem-zahlwerk","title":"QZKH oval gear flowmeter with mechanical counter","description":"\u003cp\u003eThe \u003cstrong\u003eQZKH\u003c\/strong\u003e is an oval gear flowmeter with a mechanical counter and flanged connection for nominal sizes from DN10 to DN200. It is particularly suited to measuring points without auxiliary power, since it counts without a supply; an electrical output is available as an accessory.\u003c\/p\u003e\u003cp\u003ePositive displacement, two oval gears drive the counter through a gear train, no straight inlet run needed. Flow range from 0.03 at DN10 to 340 at DN200, given without a unit in the sheet. Accuracy class \u003cstrong\u003e0.5 or 0.2\u003c\/strong\u003e, depending on viscosity; repeatability is not documented. Reading on the \u003cstrong\u003emechanical counter\u003c\/strong\u003e or an electronic counter. Optional photoelectric \u003cstrong\u003epulse transmitter\u003c\/strong\u003e, three-wire, 12 or 24 V, or a \u003cstrong\u003e4 … 20 mA\u003c\/strong\u003e transmitter without stated supply, load or accuracy.\u003c\/p\u003e\u003cp\u003eFive material versions: cast iron, cast steel, cast iron with aluminium-alloy gears, stainless steel throughout, and aluminium alloy as lightweight version; nominal pressure 1.6 · 2.5 · 4.0 · 6.3 MPa by model. Working temperature -10 … +60 °C, ambient -40 … +50 °C. The protection grade is not documented. Explosion protection per the sheet 'Ex d IIB T4', without certificate, group or category. A declaration of conformity is not documented in the datasheet. Before sizing, note: the flow tables carry no unit; only the questionnaire speaks of m³\/h. A medium temperature is stated nowhere and the statements on the high-temperature version contradict each other. The nominal pressure depends on model and size and departs from the steps with 4.1 MPa for cast steel at DN80 … DN100.\u003c\/p\u003e\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMechanical counter, works without power\u003c\/li\u003e\u003cli\u003eFlanged connection DN10 … DN200\u003c\/li\u003e\u003cli\u003eAccuracy class 0.5 or 0.2\u003c\/li\u003e\u003cli\u003eFive material versions from cast iron to stainless steel\u003c\/li\u003e\u003cli\u003eNo straight inlet run needed\u003c\/li\u003e\u003cli\u003ePulse or 4 … 20 mA output as accessory\u003c\/li\u003e\u003cli\u003eHeating jacket for media that solidify\u003c\/li\u003e\u003cli\u003eAmbient temperature -40 … +50 °C\u003c\/li\u003e\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":57453641335110,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/QZKH_produkt.webp?v=1790331901"}],"url":"https:\/\/octogon.org\/en\/collections\/flow-gear-qz.oembed","provider":"octogon GmbH","version":"1.0","type":"link"}