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Thanks Stiffler / Valvit, Really its a very useful information, what you guys shared with me. Thanks. jaff

Experts, Please guide me, which injection sealent will be suitable for the ball valv?, size is more than 12", temperature around 25 C, and fluid is Natural Gas. This valve is in line and passing. Regards Jaff

Iylek, Valvit is correct 400 mic is a good place to start but still its depends upon as you said the fluid in the line? Mostly we are applying bond arc after the surface preperation of the base material and then final coating, which gives good strenghth.

Patricia, i want to know more about the online testing of relief valves, basically what are the tools or equipment used for testing. jaffaotc

Experts, I would like to know about the online testing of the safety valves...... i was wounder when our one client told me that its not recommended to online service testing. Since boiler safety valves are almost welded, if is that case how can we test those valves...........? Jaff

Thanks tr1xnt, what gerhardl was saying is correct this is because of the crude. i hope, this method will work, applying an pressure through grease port. thanks to all, jaff

Thanks to all. but i was wondering that API-622 was already released or not, i was searching for that standard. jaff

reverman. its a fugutive emission test, i am talking about, can u bried what is the relation between in fugutive emission test and CAD software. jaff

Experts, can some one advce about the FE testing tools, if we want to carry a test what sort of tools & equipment required? Jaff

Thanks Gerhald, Actaully, there are so many Ball Valve of size range 4" to 12" with the line pressure around 80 bar, fluid density is also high you can say crude, type of stuck you can say we tried by applying more torque but no movement, if we will go more than that i hope that gear box shaft...

Thanks zdas04, Actually if any grease injection port will be not there, what will be the next step? and if grease port is there then, which type of sealent is suitable? Jaff

Experts, Is the Ball valves get jammed in service becasue os some foreign particles between seat and ball, how we can overcome to this issue, is there any method to do in service (on-line)? regards Jaff