[sachin]

Sorry for the previous post. Actually I was asking whether it is possible to bolt Cl 125 FF Gate Valve with Cl 150 WN FF flange .
Gate Valve : 8” – Gate, CL125, FF, DI body, OS&Y, Bronze trim,
Resilient St, UL/FM, HW
Service : Fire water
Pipe MOC : A53-B-E,ERW,Std.Wt.,BBE
Piping Spec : Threaded ( small bore pipe is threaded )
Corrosion All : 0.063”
Dgn Pr. & T : 200 psig & 150 F
Insulation : No

I have seen Cl 125 valve in threaded spec .Also tell whether it is more preferable to use Cl 125 FF Gate valve than Cl 150 RF type gate valve
As per my understanding we should go with RF type as these are more
common , leakproof in nature , etc.

Thanks for valuable info .