FBV Ball-Check Valve is a special form of lift check valve. Each position of the ball surface can be used as the sealing surface of the valve disc, so as to adapt to the continuous sealing after a single sealing surface is worn. FBV Ball-Check Valve are manufactured according to API 6D or API 623, BS 1868 Standard.
Sizes NPS 1/2 to NPS 3
Class 150 to Class 2500
Available materials: A105, LF2, F304, F316 ,F51,F53,F55, Alloy 20, Monel, Inconel, Hastelloy
Full or Reduced Bore
SW, NPT, RF, RTJ,
Bolted cover, welded cover, pressure seal cover
Integral seat rings
Metal seat
Design & manufacture according to API 602, ASME B16.34
Face-to-face according to FBV STD
End Connection according to ASME B16.11 (SW), ASME B1.20.1 (NPT), ASME B16.5 (RF & RTJ)
Test &inspection according to API 598
Also available per NACE MR-0175, NACE MR-0103, ISO 15848