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API 600, GATE VALVE, TRIM 8

API 600, GATE VALVE, TRIM 8

(OP)
API 600, GATE VALVE, TRIM 8

What does trim 8 mean?

The wedge surface should be 13Cr and base metal equal to or better than body materials; The body seat surface should be hard faced and base metal equal to or better than body material. Am I right?

Thanks.

RE: API 600, GATE VALVE, TRIM 8

Yes, you are right.

         trim
Part     number  Material  Brinell hardness

Stem     1,4-8A  13Cr      200 HB min.275 HB max.

Seat     8 or 8A 13Cr/HF   250 HB min./350 HB min.
Surfaces

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