Check Valve operates in temperatures to 900°F.

Press Release Summary:

Fabricated in 316 stainless steel, LC Series lift check valve employs metal seat that allows safe operation over -100 to +900°F and pressures to 6,000 psi. Instrumentation check valve is available in 1/8, 1/4, and 1/2 in. sizes. It is also offered with integrated single (CPI) or twin (A-LOK) ferrule compression tube fittings or female NPT pipe thread connections. Series employs back pressure and gravity-assisted poppet to achieve seal and prevent flow in reverse direction.

Original Press Release:

Check Valves Optimise System Integrity - Even at Extreme Temperatures

o Metal seating allows operation to +482ºC/900ºF

Barnstaple, UK, August 19, 2003 --- Parker Instrumentation has launched a new instrumentation check valve which is optimised for reliable operation at extreme temperatures, and high pressures. High integrity is assured by means of a metal seat, allowing safe operation over an extended temperature range from -148 to +482ºC, and at pressures up to 6,000PSI CWP (-100 to +900ºF, up to 413 bar).

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. Users may also specify the valves for compatibility with existing systems or preferred installation practices by choosing from integrated single (CPI) or twin (A-LOK) ferrule compression tube fittings, or female NPT pipe thread connections. The forged body is very compact, and spans only 5.1cm/2inches in its smallest 1/8 inch implementation.

The new metal-seated check valve is ideal for liquid service applications, and provides a simple means of adding protection in any system where back flow or pressure might cause a problem or damage. 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 high environmental specification of the LC Series makes the valves a safe option for handling 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. Typical applications include equipment where back flow can cause contamination, such as analytical instrumentation, and on equipment which can be damaged by back flow, such as pumping systems.

Further information:

Background information. Parker Instrumentation manufactures tube fittings, valves, manifolds and enclosures for process and plant instrumentation for the oil and gas, petrochemical/chemical, alternate fuels and analytical/high purity market sectors. Parker Instrumentation has its European HQ in Barnstaple (UK), and serves customers throughout Europe, the Middle East and the CIS.

The organization is a division of Parker Hannifin. With annual sales exceeding $6 billion, Parker Hannifin is the world's leading diversified manufacturer of motion and control technologies and systems, providing precision-engineered solutions for a wide variety of commercial, mobile, industrial and aerospace markets. The company employs more than 45,000 people in 44 countries around the world. For more information, visit the company's web site at, or its investor information site at

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