Pressure relief valve and control valve in one

Edited by the Processingtalk editorial team Jun 18, 2003

Bio-Chem Valve has developed an innovative, ultra-inert pressure relief and control valve for use with high purity or aggressive fluids

Bio-Chem Valve has developed an innovative, ultra-inert pressure relief and control valve.

The solenoid operated valve protects a system from excessive pressure, and functions as a control module that can be used for periodic purging of a system, opening a bypass channel when a pump is running in a closed system, and providing on/off control.

Designed for use with high purity or aggressive fluids, the new 075RS series relief valve completely isolates the medium from the solenoid.

The relief pressure is factory set to customer specifications.

Standard settings of 1.4, 2.4, 4.1, 5.9, 7.6 and 10.3 bar (20, 35, 60, 85, 110, and 150 psi) are available.

The solenoid is powered by a continuous duty coil and permits the valve to be opened by a 12V or 24V DC signal on command.

For applications that do not require the solenoid actuation capability, Bio-Chem Valve has developed the 075RV series relief valve, which does not contain a solenoid and serves strictly as a relief valve.

The valve fluid path has been configured to be as short as possible in order to maintain a low internal volume of 0.054 cubic centimetres and to reduce carryover fluid left inside the valve.

Wetted parts consist of a PPS body and a perfluoroelastomer diaphragm, which also provides resistance to mechanical damage from particulates.

PTFE is available for applications involving especially aggressive media.

The valves have already been successfully applied in a number of applications.

These include the relief of Ozone gas from an H2O/O3 mixing chamber during ozone generation, and protection of the glass cell inside a refractometer from excessive pressure during high pressure liquid chromatography.

Bio-Chem Valve is a leading manufacturer of precision metering and dispensing systems for the analytical and medical device markets.

Partnered with Omnifit, they provide a complete line of precision fluid transfer solutions.

Bio-Chem Valve and Omnifit will be exhibiting at the AACC Clinical Lab Expo in Philadelphia on July 22 - 24, booth number 2405.