Hi,
When you said "subsea applications", I am assuming subsea applications for oil and gas industry as that is the application that the majority of these equipment will be used at. Even though subsea applications are increasingly common, there are not a lot of materials available online.
If...
Hi KernOily,
No. API 6D is focused on pipeline valves, while API 608 is on metallic ball valves in general.
In my limited experience (9 years dealing with valves in O&G), API 6D usually has stricter requirements and is commonly referred to by major O&G companies when purchasing ball valves 2"...
Hi Mostafa,
The wedge material of Trim 8 should usually come with Stellite to avoid galling between the seats and wedge.
The term "WCB + 13%Cr" usually means WCB carbon steel with 13%Cr overlay, which is not common unless the service is corrosive and the size of the wedge gate valve is huge...
Hi KernOily,
API 608 does cover most end connections.
See following excerpt from 5th Edition API 608.
1.1 This standard specifies the requirements for metal ball valves suitable for petroleum, petrochemical, and industrial applications that have:
— flanged ends in sizes DN 15 through DN 600...
Hi KernOily,
API 6D does cover small sizes (starting from 1/2"). However, not many manufacturers produce 6D valves for sizes less than 2".
You can find 3/4" ball valves designed per API 608 or ASME B16.34 easily for petroleum industry.
Hi wirya,
#800 could mean two different pressure ratings:
1) API #800 which is close to 2000 psi (API 2K in API 6A); or
2) #800 WOG which is 800 psi. This pressure rating is not covered in API 6A.
2" API 6A valves are more commonly found with the trunnion mounted design rather than the...
