Thanks All.
Gerhardl, can you pls explain me more on the U shaped flange?What way is it different from a normal flange.
With regard to the dead end service capability:
My requirement though is not dead end service, customer wanted us have the end connection selected along with appropriate reasons.
Recently I came across a requirement where the customer wanted complaince to NACE MR0103.What is the main difference between NCE MR 0175 and MR 0103.
Is the key difference there in the environmental conditions under which sulphide stress cracking occurs?
Can Anyone tell me as to
What is the main functional difference between a pneumatic diaphragm actuator & a pneumatic piston actuator while operatin a globe valve.Will it be difficult to attain the precise control with piston actuator?
And what about hole in the Disc? Even it is used fr pressure relieving right?
I also came across one more point that mostly Globe valve is a preferred Bypass valve.But I could not find any other reasons except that it can be used for throttling purpose.
Recently I got an enquiry where I came across two different services of valves
Underground service and Buried service.Are these two services different?
I feel that both are the same.
Please clarify.
As per Shell requirement what is the main difference between FE class A and Class B production testing.Is there any difference in the testing procedure or only in the leakage rates.
Can anybody help me out?
