Salient Features

• Screwed Female Ends to IS 554 / BS 21 / ISO 7.
• Screwed in Bonnet, Integral Seat.
• Permits flow in one direction and closes automatically if the flow reverses.
• Metal Disc is mushroom shaped with spherical seating surface.
• Meant for Horizontal Lines Only.
• Disc is guided in Body as well as in Bonnet.
• Heavy Pattern.
• Also available with metal to metal seating.

Test Pressure (Hydrostatic) :
Shell : 35 kg/cm²g (500 psig)
Seat : 20 kg/cm²g (285 psig)
Maximum Working Temperature : 80°C

Materials

Sizes / Dimensions