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Question:

What is the dish yellow in the valve?

It seems to be used on the stem nut. Yes, thank you. Ah, thank you

Answer:

Disc spring: not used on valve stem and nut. Usually, disc springs are used on hard sealing ball valves.
Jul 19, 2017
It is mounted behind the seat and plays a key role in the thrust and closure of the valve seat.
Jul 19, 2017
What's the valve? You should say "butterfly spring". If it is, it will fix some parts
Jul 19, 2017

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