900LB self sealing high-pressure shut-off valve is only suitable for full opening and full closing, and no adjustment and throttling are allowed. The globe valve is a forced seal valve, so when the valve is closed, pressure must be applied to the disc to force the sealing surface not to leak. When the medium enters the valve under the valve, the resistance that the operating force needs to overcome is the friction force of the stem and the filler and the thrust of the pressure from the medium. The force of the valve is larger than that of the valve, so the diameter of the stem is large, otherwise the valve rod will have the failure of the top bending.
Technical Specification
Normal Size Range: 2"-12"
Normal Pressure Rating: PN100~PN420, CLASS600~2500
Material: WCB,LCB,WC6,CF8,CF8M,CF3,CF3M
Temperature Range: -29~425Degree C
Standards compliance
Design and Manufacture: ANSI B16.34,BS1873
Face to face(end to end): ANSI B16.10
Flanged connection: ANSI B16.5
Butt welded end: ANSI B16.25
Test and inspection: API598.
A.Back up ring: Absorbs thrust applied by internal pressure
B.Thrust ring: Protects the soft metallic gasket from deformation
C.Gasket: Unique angular design provides superior sealing
Technical specification
Design & manufacturing standard as per BS1873 /ASME B16.34
Face to face standard as per ASME B16.10
Fanged ends standard as per ASME B16.5
Testing & inspection standard as per API598
Product Range
Body material: Carbon steel, Stainless steel, Alloy steel ,Monel, Duplex, Inconel
Size range(s):1/2"～24"
Pressure rating: Class150～Class 2500
End connection: RF, RTJ, BW
Working temperature:-29℃～ 560℃
Mode of operation: Hand wheel, gear box, Electric-actuator , Pneumatic- actuator, etc.
Design Features
Impactor handwheel for tight shutoff.
Body made of superior strength forgings and optional cast steel.
Optional live-loading of packing.
Hardfaced seating faces resist erosion.
