Answer / Vijay Singh Yadav

A double seated valve, also known as a double-disc check valve, is used to prevent fluid flow in one direction while allowing it in the opposite direction. It consists of two discs, each with a hole in the center, that can rotate around their respective axes. When no pressure difference exists on either side of the valve, both discs are parallel to the flow direction and allow fluid passage. However, when a pressure difference occurs, one or both discs are forced to rotate, closing off the flow path in the opposite direction.

applications of 1-5v and 4-20ma?

4 Answers  

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Dear friends, I have a question: We work on a project which has some boilers to provide steam for desalination unit. The boiler area is safe and the only hazard source is the fuel lines of boilers. I want to know according to NFPA standard which type of instrument should be selected on the fuel line: Eex Type or Non-Eex type? Thanks in advance

2 Answers  

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Q- Ordinary Water Tap is which kind of controller ? P , PI or PID i chose the option of ON - OFF type controller but ambiguity is that for different positioning of tap we get different flow

1 Answers  

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which type of signal used in instrument?

4 Answers   Emco, Makson, Sail, TATA,

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what are the types of a thermocouple

2 Answers  

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why most of the DP transmitters using maximum range as 0-2500mmwc?why not 1000 2000 3000 4000mmwc

2 Answers   SPIC, TNPL,

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What is i/e or o/p transmitter(ma/v)?

1 Answers   Emco,

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Can someone give a detailed chart on the temperature ranges which can be measured by various temperature sensors.

3 Answers  

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what is zero and span ?

1 Answers  

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what is axial shift n what is differential expansion in turbine? how many sensor probes r mounted for this n how it works?

2 Answers   Apple,

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need to calculate flow rate with the help of dp range and orifice bore dia and size. range is 0 to 400 inwc and orifice size is 12 inch 150 # rf and bore dia is 7.180 inch. need to calculation for flow rate

1 Answers  

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What is the difference between Pressure Safety Valve and Pressure Relieve Valve, in what condition we prefer choose Pressure Safety Valve rather than Pressure Relieve Valve? and vice versa

2 Answers   Vedanta,

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