SEALING STRUCTURE FOR A VALVE BONNET, CAPABLE OF PREVENTING A FLUID LEAKPURPOSE: A sealing structure for a valve bonnet is provided to prevent fluid from leaking out even if a gasket is not replaced often when a bonnet is periodically separated and re-coupled.;CONSTITUTION: A sealing structure...
The body is connected to the bonnet, which assists in containing the fluid, gas, or slurry. Bonnet The bonnet provides a leakproof closure for the valve body. Different types of bonnets can be used in globe valves, including screw-in, union, or bolted bonnets. Cage The cage surrounds the...
DBV Product Line: Solid Wedge Gate Valve, Flexible Wedge Gate Valve, Split wedge or Parallel disks Valve; Screwed Bonnet/Bolted-Bonnet/Welded-Bonnet/Pressure-Seal Bonnet Gate Valve; Rising Stem or OS & Y Type (Outside Stem and Screw Type); Non-rising Stem type, etc. ...
bi-directional line sealing. The raised seats are completely protected from the process flow when fully open or plug covering body seat closed. There are no cavities to permit process build-up, no leak paths behind the seat and no thermal expansion problems. Inherently fire safe, a single Wedg...
A valve with an external leak can be a simple adjustment or may require further inspection. Review our simple checklist below. Crack in the body- This would require a valve replacement. Loose bolts/screws on the bonnet- Tighten down, so they are snug. ...
Leak RateValve Body< 1 × 10-9mbar ls-1 Valve Seat< 1 × 10-9mbar ls-1 Pressure Range1 × 10-7mbar to 1 bar (abs) Differential PressureOn the Gate≤ 1.2 bar At Opening≤ 30 mbar Cycles until first Service500 000 TemperatureValve Body≤ 120 °C ...
Packing is installed between the stem and bonnet to ensure the valve does not leak.Some globe valves connect the stem directly to the disc, but some designs do not. A screw-down non-return (SDNR) valve is one such design where the stem does not connect to the disc. SDNR valves are ...
The 75.0 is designed as flap valve (DN 63 – 200) and is pneumatically actuated. The standard bake out temperature is max. 200°C for valve body and max. 50°C for the actuator. The bonnet is metal sealed, the gate seal is FKM and a welded metal bellows seals the feedthrough. ...
The bonnet provides a cover for the shaft connection to the external control mechanism and can be either removable or integral to the valve body, depending on the design. 05/ Seat Ball valves have two seats, usually made from soft materials such as PTFE (Teflon) or elastomers. These seats ...
Resilient Wedge Gate Valve Flexible Wedge Bolt Bonnet Reliable Sealing Size:: NPS 2"~56" Pressure Rating:: Class 150~2500 Material:: WCB, LCB, WC6, WC9, C12,CF8, CF8M, CF3,CF3M,etc Temperature:: -196°~593° API 6D Fully Welded Ball Valve Carbon Steel Stainless Steel Material ...