Chromatography valve

diaphragmpneumaticpurge

The most reliable and durable valve Our patented compact Purged Lip Sealing Valve (PLSV) is a disruptive analytical valve that offers the best of both worlds: a longer lifetime than a diaphragm valve along with the constant pressure drop and simplicity of a conical rotary valve. Designed to meet our high standards, this revolutionary technology is based on an innovative purge system as well as the valve insert’s reduced sealing surface area that replaces the traditional rotor. By design, it’s impossible for this valve to develop a cross-port leak. Features No leaks: Unique purge technology eliminates inboard/outboard and cross-port leaks Long lifetime: Over 2 million actuations in UHP applications due to unique reduced surface area insert technology Constant pressure drop: No change in pressure/flow drop across temperature range and life span No dead volume: Internal flow path contains no unswept volume Small footprint: With our electrical or pneumatic compact actuator, multiple valves can be installed in a constrained space, replacing existing diaphragm valve Typical applications Ultra-trace permanent gas Ultra-trace sulfur VOC Hydrocarbon Any gas chromatography applications Models Switching Improved chromatograph baseline stability No dead volume Compact footprint Available with pneumatic or electrical actuator Valve head available with various coatings and surface treatments Available in 4, 6, 8, 10, 12 and 14 ports Insert available in various materials for chemical compatibility