Parker Instrumentation has launched a new instrumentation check valve to cope with extreme temperatures and high pressures. It is equipped with a metal seat, allowing safe operation over an extended temperature range from -148 to +482ºC and at pressures up to 6000 PSI CWP. Fabricated in 316 stainless steel, Parker’s LC Series of lift check valves are available in 1/8, 1/4 and 1/2 inch sizes. The forged body spans only 5.1cm/2inches in its smallest 1/8 inch implementation. The new metal-seated check valve is considered ideal for liquid service applications, and aims to protect any system where back flow or pressure might cause a problem. The LC Series employs back pressure and a gravity-assisted poppet to achieve a seal, and prevent flow in the reverse direction to within 99.9% of forward flow. The LC Series allow the valves to handle the temperature extremes found inside power generation, petrochemical, and chemical processing plants, within oil and gas transmission facilities, and on laboratory test and evaluation equipment.
