sealant inection in valves

[Rakesh2560]

I am new to selection of valves and would like to know what type of valve are provided with sealant injection points ? Also is there a standard which governs the selection of such valves and where can I get guidelines on sealant injection I understand its vendor specific but would like to know more about it request help on the fellow engineers for the issue

 

[gerhardl]

There is no general rules that dictates that a valve construction needs sealant injection. This is totally dependent on the factory's
construction and experience, customers demand and detailed application.

Sealant injection gives and extra inspection and operation point.

As material, machining and construction technology advances, sealant injection will probably be less used in the future.

(Above is my personal view.)

 

[Isha90]

Hi, In Lubricated Plug Valves, Trunion mounted Ball valves for better seal & lubrication.