WHICH INSTRUMENT USED TO CALIBRATE CONTROL VALVE?
Answer Posted / chek mohidein
For the calibration of a control valve a loop calibrator or
a pressure calibrator can be used between 3-15psi.Check the
valve position for 3psi which is to be 0 for a NC type
valves.In such manner check the valve positon for various
ranges(6psi,9psi,12psi & 15psi).the valve positon shoul be
0 for 3psi and 50% for 9 psi and completely opened for
15psi.
The same procedure is applicable for NO type valves.The
valve is open for 3 psi and completely closed for 15psi.
Any errors occured may be rectified by Zero span adjustment.
Is This Answer Correct ? | 50 Yes | 3 No |
Post New Answer View All Answers
Explain the difference between plc and cnc?
how can use ram
TECHNICAL/ARTITUDE
What is solenoid valve? Where it is used?
Instrumentation Safe Guarding test. How to determine the interval time of the test. eg:Halfyearly,Every year,Every three years etc.
typical loop drawing of a simple feedback control comprising of one transmitter and one control
What is the formula of vabration sesore. i mean how to covert mils to volt plz share if any body knows very argent : my mai is merajalam143545@yahoo.com
Explain the working principle of lvdt?
what is the difference between profibus and controlnet networking.
Derive capacitance to 4-20ma conversion formula / relation in capacitance type pressure sensor?
how to measure draft pressure in transmitter pl. give its single line digram
How is flow measured in square root?
how the arrangement of equipments done in control room
in sulfur process what is material of impulse line we use to connect with transmitter ? and does teflon affected by sulfur?
Dear Friends, we are planning to design Power distribution and Fiber optic in the same cabinet.Like Front side Fiber optic and Rear side Power distribution.Is it any possibility of problem occurs like interference etc? Your answer is highly appreciate.