Valves and Verniers
Valves and verniers isolate a pressure device, control pressure and vent pressure when performing a pressure calibration
Install between a pressure gauge and the process and isolate the process from the gauge to perform a calibration of the gauge. After completing the calibration open the valve and place the gauge on-line, all without blowing down the system.
Use to slowly or quickly bleed pressure from a line after a calibration is complete
Keep a calibration system pressurized with a fluid or gas while venting the pressure from the device being calibrated
Connect one end to a Quick-test hose and the other to the process connection then turn the knob to control the pressure