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Class 1500LB-II

Class 1500LB-II

(OP)
I cam across this designation for valve flange and was unsure as to what the II referred to.
Is it too simplistic to assume it refers to ASME II for the materials of construction.

Any assistance is much appreciated.

RE: Class 1500LB-II

mgas,
Not sure of the meaning of the II but just for your information there is no such thing as "Class 1500LB". The correct designation is "Class 1500"

RE: Class 1500LB-II

Agree that the correct designation is ASME class 1500, but lets not start that discussion again....

II seems quite odd , but can you give the full description of what it refers to?

ASME II is not specific to a material so I can't see how it would apply.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

RE: Class 1500LB-II

(OP)
The designation has come through a list of valves required for a power station in the far east which is being engineered out of Japan. Under the valve rating we have some items which state the following notation;- 1500LB-Ⅱ.

RE: Class 1500LB-II

Needs a query back - its not something I've ever seen and may be related to a note or some sort of rating issue. What size / type of valves were these designations on?

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

RE: Class 1500LB-II

for valve materials , normally API 6A material class applies .


AA-General Service Carbon or low alloy steel
BB-General Service Carbon or low alloy steel
CC-General Service Stainless steel
DD-Sour Service a Carbon or low alloy steel b
EE-Sour Service a Carbon or low alloy steel b
FF-Sour Service a Stainless steel b
HH-Sour Service a CRA bcd


I believe the II might be a typo,

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