API 6D Flanged Forged Steel Ball Valve

Forged Steel Floating Ball Valve Features:

Two Pieces /Three Pieces Forged Steel Body
Floating Ball, Full&Reduced Bore
Anti-static Device
Blow-out Proof Stem
Fire Safe Design
Low Emission

Specifications:

Design: ASME B16.34/BS5351
Face to Face: ASME B16.10
End Flange: ASME B 16.25
BW End: ASME B16.25
Test: API 598/BS 6755
Fire Safe Test: API 607/API6FA
Special: NACE MR-01-75

Floating ball valve design feature:

Live loaded gland flang
Live loading is designed to provide gland load retention, compensating for expected in-service consolidation of packing. A set of belleville spring washers are used on each gland stud to help exert a continuous compressive force on the gland follower flange and therefore reduce fugitive emissions from the stem packing. ARITA standard belleville-spring washers are protected by a weatherproof cap to keep them free from environmental contamination, resulting in a long stable life.


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