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Birkett WB300 Balanced Bellows Gas Type Safety Relief Valve
A full lift, full nozzle, balanced bellows valve with dimensions to API526, the W300 is designed to safely relieve excess pressure in pumps, pipework, tanks, calorifiers, gas and oil separators and other process vessels. It is suitable for gas, steam and vapour applications. All design options and the various effects of system conditions and back pressure have been verified on Birkett’s extensive in-house mass flow test facility. Continuous design improvements have created smaller and lighter valves to support current industry design trends, especially space and weight savings. Valves can be modified from type to type simply by changing only a few parts, and precise engineering has reduced the number of parts, making maintenance easier and more cost effective.Read More
Birkett WB300 Balanced Bellows Gas Type Safety Relief Valve
The W300 Bellows valves are statically balanced and can be used on more complex discharge systems such as common discharge manifolds and flares where several valves may discharge. This type of system creates a variable superimposed back pressure. The balanced bellows unit cancels out the effects of variable back pressure, on the set pressure of the safety relief valve.
The gas/vapour disc can be distinguished by the flat underside, unlike the cone profile of the liquid disc.
A selection of accessories is available to suit system requirements. These include:
- Screwed Cap
- Bolted Cap
- Open Lever
- Packed Lever
- Test Gag
- Ferrule (government ring)
- Soft Seat
- Steam Jacket
- Auxiliary back-up piston
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