ZFV Stainless steel ball valve.
Product features :
Type : Floating ball valve
Ends type : Flanged end , RF
Size and rate : 1’’ class 150#
Full bore, split body
Operating Torque : 80N.M
Face - face dimension : 127mm
Drive : Manual lever operator
Suitable Temperature : Max. 150°C
Suitable Presure: 20Bar
Fire safe design per API 607/API 6FA
Standard : API608 / BS5351
Packing: Plywooden case
Certificates : EN 10204 3.1
Material : Body stainless steel ASTM A351 CF8M, Trim SS316 / PTFE, bolts A193 B8M & A194 8M
Standard : API608, ANSI B16.10, ANSI B16.5, API598
Blowout proof stem of ball valve :
The ball valve stem is made of a shoulder at the bottom end. It’s retained by the valve body, to avoid that the stem to get out of valve accidentally body under certain operating conditions. Other designs are available on request.
Because the ball and stem in a ball valve are suspended on non-metallic parts, i.e. the seat seal and stem seal, there is a possibility a static charge may cause up with the stem and ball, a mechanical device (antistatic metal spring and ball) is used in the design to maintain the metalto-metal contact between the rotating ball/stem and the valve body which will ground any charges to the valve body.