Check Valves

LB Bentley check valves are able to provide full metal sealing (combined metal to metal and polymeric) across a wide range of temperatures in line with those currently demanded by the oil industry.

Check Valves are used within fluid control system to perform a vital function by preventing reverse flow of fluid that increases efficiency of operation sand negates the potential for damage to the fluid control system.

The Check Valve, effectively a non-return valve, can be installed as a standalone unit or built integrally into the inlet or outlet of a Rotary gate valve or Through Conduit Split gate valve. There are various designs of Check Valve which is dependent on the application, with the standalone design coming in varying shapes – the bean can, the top hat and the rolling pin.

The flexibility of the core Bentley check valve design offers many alternatives including threaded, butt weld, flange mounted and ‘sandwich’ options to fully satisfy the bespoke customer requirements.

The spool-to-body primary seal is metal-to-metal with a PTFE secondary seal. Lift pressures can be customer specified – typically 1 to 4 bar which support the pressure requirements of the fluid control system.

Recognising that soft faced check valves are susceptible to contamination, field servicing of the valve by simple replacement of the spool assembly has been designed to be as easy to achieve as possible. Crucially, if installed in a gate valve assembly, this is carried out without affecting the integrity of any seat to body interface, as this can be a major issue for certain design solutions.

At LB Bentley, we work hard to meet our customers’ needs and as we strive towards continuous improvement, the qualification status of our products is constantly developing. This enables us to offer an expanding range of fully qualified products. To find out more about our full range of products use our contact form here.

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