Innovative and Reliable Needle and Ball Valves

12 May 2009

The Bifold Group has re-developed its range of ball and needle valve products and re-launched the range for low/medium pressure applications with operating range from 1,000 psi / 70 bar up to 15,000 psi /1035 bar.

The valves offer exceptional integrity to meet medium pressure and other demanding instrumentation applications that are increasingly being faced in the upstream and downstream oil and gas sector.

Constructed from 316 stainless steel as standard (other material options offered), in compliance with NACE MR-01-75 as standard and with ¼” up to 2” tube connection sizes.

The Ball Valve range utilises a state of the art design to reduce potential leak paths. They are bidirectional
and are actuated by a 90 degree turn handle as standard, for fast on/off action. The valve mechanism works on the floating ball principle and offers 100% bubble tight operation. The use of PEEK seat and stem seal materials allows operation over a wide temperature range from -20°C to +180°C, with other materials available for lower/higher temperatures.

The Needle Valve range offers a robust single piece design with standard pressure ratings from 6,000 psi / 414 bar up to 10,000 psi / 690 bar along with a low operating torque facility even when under pressure. Manufactured with a stem seal design to prevent galling and thread contamination along with a non rotating anti-galling tip as standard. Suitable for either panel or pipe mounting, the manifold valve range design permits controlled venting of the instrument for calibration and/or removal from the circuit, whilst leaving the process intact resulting in NO DOWNTIME.

Within the Needle Valve range, Bifold is able to offer a medium pressure design ratings from 13,000psi / 896 bar up to 15,000 psi / 1035 bar. This unique design allows direct inline connection to pipe systems through 3/8” MP connections, thus eliminating the requirement for a connection ‘T’ and vents through a ¼” MP connection.

Many applications for the new instrumentation valves can be found, for example, on the topsides of offshore oil and gas platforms. These include hydraulic systems for wellhead control, emergency shutdown systems, chemical injection skids, pumping packages and test equipment.

Bifold have set up a purpose designed lean manufacturing and assembly process for the valve types, to ensure, 100% inspection and test, rapid delivery and low cost.

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