4 inch 150# 316 Stainless Steel Bolted Bonnet Gate Valve, Flanged x Flanged

Description

Gate Valve, 2456 Series, Nominal Size: 4 inch x 4 inch, Flanged x Flanged Connection, 316 Stainless Steel Body, 316 Stainless Steel Stem, PTFE Packing, 316 Stainless Steel Bolted Bonnet, Industry Standards: ASME B16.34, ASME B16.5, ASME B16.25 and ASTM, 110 lb Weight, Additional Details: Gasket: Graphite, Hand Wheel: Malleable Iron or Steel, Gland: A276 316 Stainless Steel, Wedge: 316 Stainless Steel, Gland: A276 316 Stainless Steel, Dimensions: A: 9 inch, C: 13.6 inch, D: 4 inch, E: 9 inch, X(1): 20 inch, Flow Co-efficient: 1020, Class #150

Features

• Seat face is Ground and lapped to a smooth finish
• Flexible Wedge with low center stem wedge contact. Wedge is ground and lapped to a smooth finish and closely guided to prevent dragging and seat damage
• Non-rotating stem with precision ACME threads and burnished finish. Double ACME threads for faster operation
• Body and bonnet joint accurately machined
• Each valve is shell, seat and backseat pressure tested
• Yoke bushing can be lubricated to minimize friction and prolong life of the stem
• Body and bonnet castings are precision machined
• Gland has two-piece construction for easy alignment
• Valves are specially cleaned and processed for oxygen or cryogenic service and are then sealed to prevent contamination
• Bonnet chamber ventilation, in order to prevent excess pressure build up caused by trapped cryogenic liquids, is available upon request
• Each valve has a unique certification number that is traceable to the valve certification sheet which includes MTR data, pressure test report, inspection report and certificate of conformance

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