Series COVOL
12Pages

Oscillating piston flowmeters Series COVOL Positive displacement flowmeter for liquids            Suitable for all kind of liquids Viscosity up to 120000 mPa·s Excellent performance with changing process conditions Easily cleaned and sterilized Available with materials and connections suitable for hygienic applications Bidirectional flow measurement and installation in all flow directions Special design for high pressure available Flow rate: 25 l/h ... 60 m3/h Accuracy: ±0.8% measured value Repeatability: ±0.3% Connections: - EN 1092-1 flange DN10 ... DN100 Other flange standards on request - Threaded connections BSP or NPT - Sanitary couplings according to ISO 2852, SMS 1145, DIN 11851, TRI-CLAMP® Materials: - Body: EN 1.4404 (AISI 316L), PVC, PP, PTFE - Piston: PTFE+graphite, aluminium, bronze, PVDF - Gaskets: NBR / PTFE / EPDM / Viton® / Silicone Potential free reed switch output Optional: - Flow indication, local or remote - Volume totalizer, local or remote - Electronic transmitter with 4-20 mA analog output. HART protocol available on request - V

Working principle By means of oscillating piston and an annular measuring chamber.  Chemical and petrochemical industry  Tank filling and batching applications  Measurement of steam condensates in boilers 1– The first figure shows the COVOL flowmeter at the beginning of a cycle, when the measuring chamber (in blue) is completely full.  Burners, measurement of fuel consumption Technical data  Accuracy: ±0.8% measured value  Repeatability: ±0.3% 2– The flow of the liquid through the flowmeter makes a force on the oscillating piston, so that it starts turning. From this moment the...

Mounting Both in horizontal and vertical position, bidirectional flow measurement and suitable for all flow directions. Straight pipe run before and after the flowmeter is not required. In order to assure the good performance of a COVOL flowmeter, the installation of a filter prior to the unit is mandatory, with a mesh size between 0.5 and 1 mm, according to the pipe diameter (smaller sizes involve a smaller mesh size). In those processes where air or gases, liquid evaporation, etc. might be present, an air/steam separator must be installed before the flowmeter, in order to obtain a real...

Available for DN100 with special design. Please consult factory COVOL-H DN10 / ¼” low flow, horizontal

Threaded connection BSP/NPT Oscillating piston flowmeters Series COVOL Sanitary couplings * Other sizes on request All dimensions In mm * OD: pipe 0ext according to ISO 2037 Other standards on request (DIN 32676,TRI-CLAMP®,...)

Flow scales Max . i ntermittent pulses / litre l/h water l/h water approx. The COVOL flowmeters are calibrated with water (density 1 kg/l and viscosity 1 mPa-s). After this calibration the pulse / litre factor is obtained. With this factor, the associated electronic converter can make the calculation of the flow rate and/or the volume values. As shown in the accuracy curve, the area where the maximum accuracy is obtained is by the mid of the flowmeter flow range. The measurement errors can be corrected in the different associated electronic converters by means of the adjustment...

Oscillating piston flowmeters Series COVOL ΔP increase (mmH 2O) due to the effect of density and viscosity Graph 2 3 2.7 ν (cSt) = Electronic converters Model CP ... CH420  4-20 mA transmitter  System: - Compact (CP ... CH420L) - Remote in DIN rail (CP ... CH420R) - Remote in panel (CP … CH420P)  Electronics mounted in a housing with aluminium base and polycarbonate (UV resistant) cover (CP … CH420L)  Power supply: - 2-wire, loop powered - Nominal voltage: 8 ... 36 VDC - Power consumption: ≤20 mA  Totalizer: - Nº of digits: 7 - Size of digit: 8 mm - Reset: by means of keyboard ...

Model CIP … CIP II  Volume totalizer: - Model CIP: resettable totalizer - Model CIP II: non-resettable totalizer and resettable partial totalizer  Compact or remote system  Electronics mounted in a housing with aluminium base and polycarbonate (UV resistant) cover  Battery powered (CR-2450): - Nominal voltage: 3 V - Load: 560 mAh - Power consumption: 8 μA  Totalizer: - Nº of digits: 7 - Size of digit: 8 mm - Reset: by means of key or magnet (non-resettable for CIP II)  Partial totalizer (only available for CIP II): - Nº of digits: 5 - Size of digit: 5 mm - Reset: by means of key...

Oscillating piston flowmeters Series COVOL Model MC01  Electronic converter for flow rate indication, volume totalizer,  Electronic converter for volume preselection and totalization partial volume totalizer and preselector with relay output for batching  Fully programmable by the user  Panel mounted  Power supply: 24, 110, 220, 240 VAC 50 / 60 Hz 12, 24 VDC  2-line LCD display with 16 characters (5 mm height)  7 digits totalizer, partial totalizer and volume preselector  Relay output for batching  Flow rate indicator in l/h y m3/h  Dimensions 96 x 96 mm DIN 43700 ...

ATEX version The COVOL flowmeter is suitable for its installation in ATEX hazardous area, that is, in those zones where a potentially explosive atmosphere can be generated. There are two types of protection available: Exi intrinsically safe or Exd ExProof. Exia protection The reed sensor is considered as “simple apparatus” according to EN 60079-11 standard clause 5.7, since it does not contain its own source of ignition. Reed sensor technical data: - Vmax.: 30 V ; Imax.: 20 mA - Maximum switched power: 0.6 VA - Max. ambient temperature: 40°C According to these data, the flowmeter can be...

DN AISI 316L PP/PVC/PTFE AISI 316L PP/PVC/PTFE 15 205 220 250 265 Exd housings are not available for flowmeter sizes DN10 (H) and DN10 DN100 on request

R-CT-COVOL Rev. 1 english version PRESENCE IN MORE THAN 50 COUNTRIES ALL OVER THE WORLD Tecfluid S.A. Narcís Monturiol 33 08960 Sant Just Desvern Barcelona Tel: +34 93 372 45 11 Fax: +34 93 473 44 49 tecfluid@tecfluid.com www.tecfluid.com Quality Management System ISO 9001 certified by Pressure Equipment Directive 97/23/CE certified by ATEX European Directive 94/9/CE certified by HART® is a registered trademark of HART Communication Foundation The technical data described in this specification sheet is subject to modification without notification if the technical innovations in the...