Fluke Calibration’s constant volume valve is a pneumatically actuated needle valve with a return line connecting the inlet to a coaxial compensator. Needle displacement is matched by an equal and opposite volume displacement on the compensator.
Fluke Constant Volume Valve
The constant volume valve is used in piston gauge crossfloats and other applications in which two high pressures need to be disconnected and reconnected with minimal purturbations on either side.
Related products
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Fluke 771 Milliamp Process Clamp Meter
Features
- 0.2% or reading + 5 counts accuracy at -20.99 mA to 20.99 mA
- 1% or reading + 5 counts accuracy at -21.0 mA to -99.9 mA and 21.0 mA to 99.9 mA
- 0.177 in or 4.5mm max diameter of measurable conductor
- -10° to 55°C operating temperature
- IP40 rating
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Fluke 754 Documenting Process Calibrator
Features
- Full-featured documenting process calibrator with HART communication for calibrating and troubleshooting HART instrumentation
- Measures volts, mA,TDs, thermocouples, frequency, and ohms to test sensors, transmitters and more
- Sources/simulates volts, mA, thermocouples, RTDs, frequency, ohms, and pressure to calibrate transmitters
- Powers transmitters during test using loop supply with simultaneous mA measurement
- Handles fast pulsed rtd transmitters and PLCs, with pulses as short as 1 ms
- Creates and runs automated as-found/as-left procedures to satisfy quality programs or regulations, and records and documents results
- Holds up to a full week of downloaded procedures and calibration results
- Uses many features like autostep, custom units, user-entered values during test, one-point and two-point switch testing, square root DP flow testing, programmable measurement delay and more
- Provides easy-to-use multi-lingual interface
- Features a bright white dual display for reading both sourced and measured parameters simultaneously
- Offers compatibility with many asset management software packages
- Multifunctional
- Powerful, yet easy to use
- Records and documents results
- Truly hand-held
- Rugged and reliable
- Bright white display
- Soft keys
- Three operating modes
- Multi-lingual interface
- Built-in algebraic calculator
- Programmable measurement delay
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Fluke 700HTPK2 Hydraulic Test Pressure Kit
Features
- Generate pressure up to 10,000 psi, 690 bar with the included 700HTP-2 test pump
- Includes 700TTH 10K premium/no tools required transmitter test hose kit and adapters
- Hard case protects pump and gauge and allows gauge to remain connected to the pump
- Can be combined with any Fluke 700G Series Gauge, 1,000 psi range or greater, to make a complete pressure testing kit
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Fluke 9142 – Field Metrology Wells
Key Features:
- Lightweight, portable, and fast
- Cool to –25 °C in 15 minutes and heat to 660°C in 15 minutes
- Built-in two-channel readout for PRT, RTD, thermocouple, 4-20 mA current
- True reference thermometry with accuracy to ±0.01 °C
- On-board automation and documentation
- Metrology performance in accuracy, stability, uniformity, and loading
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Fluke 789 / T3000 FC Process Meter / Temp Kit
Features
- Compatible with Fluke Connect Mobile App
- 24 V loop power supply
- 1000 V RMS max voltage applied between any jack and earth ground
- Range and resolutions:
- VDC: 400.mV, 4.000 V, 40.00 V, 400.0 V, 1000 V
- VAC (true-rms): 400.0 mV, 4.000 V, 40.00 V, 400.0 V, 1000 V
- mA DC: 30.000 mA
- A DC: 1.000 A (0.440 A continuous)
- A AC: 1.000 A (0.440 A continuous)
- HART mode setting with loop power (adds 250 ohm resistor)
- 1200 ohm drive capability on mA source
- Enhanced backlight with two brightness settings
- 0 to 100% mA Span check buttons to toggle between 4 and 20 mA
- Infrared I/O serial port compatible with FlukeView
- -4° to 131°F (-20° to 55°C) operating temperature
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Fluke 787B Process Meter
Features
- 400mV up to 1000V voltage range
- Fluke connect
- 20 mA dc current source/measure/simulate
- Simultaneous mA and % of scale readout
- Frequency measurement up to 20 kHz
- Meets IEC 61010 CAT III and 600 V CAT IV standards
- Min/max/average/hold/relative modes
- Diode test and continuity beeper
- -4 to 131°F (-20 to 55°C) operating temp range
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Fluke 724 Temperature Calibrator
Features
- Measure Accuracy
- RTD: .2 to .33°C
- Thermocouples: .7 to 1.8°C
- Voltage DC: 0.025% to 0.02%
- Current DC: 0.02%
- Resistance: 0.1 to 1.5%
- Source Accuracy
- Voltage DC: 0.025 to 0.02%
- Resistance: 0.15Ω to 1Ω
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Fluke 719Pro Electric Pressure Calibrator
Features
- Electric pump for one handed pressure calibration
- Best in class pressure measurement uncertainty of 0.025%
- Measure and source mA with best in class 0.015% accuracy
- Precision pressure adjust vernier for accurate pressure calibration
- Variable release rate bleed valve for easy pressure adjustment
- Programmable pressure calibrator pump limit: eliminates over-pressurization and allows the user to program target pressures for pumping
- Programmable 3-tiered display for maximum flexibility when displaying pressure, temperature, and electrical parameters of your choice
- Display backlight
- Damping, Min/Max, and % error function
- Source mA with simultaneous pressure measurement to test valves and I/Ps
- Simulate mA signals to troubleshoot 4-20 mA loops
- Test pressure switches with built in switch test function
- Power transmitters during test using 24 V loop supply with simultaneous mA measurement
- Precision temperature measurement with the addition of an accessory RTD probe (available as an option)
- Proven cleanout ports reduce pump failures
- Moisture trap included with the unit helps mitigates risk of moisture damage
Applications
- Pressure Instrument Calibration
- Pressure Instrument Maintenance
- Petro-Chemical
- Oil and Gas
- Pharmaceutical
- Water and wastewater
- Food and Beverage
- Power Generation
