UNIQUE Valve Company are available in three bonnet designs. The first design is the bolted bonnet, with male-female joint, spiral wound gasket, made in F304L, graphite. Ring joint gasket are also available on request. The second design is the welded bonnet, with a threaded and seal welded joint. On request a full penetration strength welded joint is available. The third design is the pressure seal bonnet, with a threaded and pressure seal bonnet joint.
Size: 1/2 Inch - 4 Inch.
Pressure Rating: Class 1500 - 2500 LB.
Material: ASTM A105, ASTM A182 LF2, ASTM A182 F304, ASTM A182 F316, ASTM A182 F304L, ASTM A182 F316L, ASTM A182 F321, ASTM A182 F51, ASTM A182 F53, ASTM A182 F55, ASTM A182 F11, ASTM A182 F22, ASTM A182 F5, ASTM A182 F9, ASTM A182 F91, INCONEL.
Pressure Sealed Bonnet, OS & Y, Outside Screw and Yoke, Solid Wedge, Renewable Seat Rings, Thread, SW, BW, Flange.
Specifications:
Design: API 602, ASME B16.34, BS 5352.
Face to Face: ASME B16.10, BS EN 558.
End Flange: ASME B16.5.
End BW: ASME B16.25.
Pressure Temp: ASME 16.34.
Test: API 598.
Special: NACE MR-01-75.