Very maintenance friendly
Easy exchange of wearing parts due to the two-piece body and therefore low maintenance costs

Excellent diffusion and corrosion resistance
due to PTFE seat-ring in solid version according to DIN 3354, lined all the way round, thus guaranteeing permanent sealing at the stem output and in the bore

Very aggressive and corrosive media are safely shut-off and controlled

Valve design cavity-free
makes simple sterile cleaning possible and choice of body material independent from the medium

Long service life
seals tightly at full differential pressure even with very high switching cycles and varying temperatures

Excellent bubble-tightness
Body lined completely with PTFE (at least 3 mm) with the seat-ring as a multi-functional sealing element, easily exchangeable, maintenance-free, with long service life

No frictional electricity (ATEX)
due to the neutral characteristic of the PTFE/PFA materials touching the product

Absolutely maintenance-free seal system
The spring-loaded pressure bearings, integrated in the seat-ring, ensure a pressure-stable sealing to the outside
the bearing with O-ring prevents foreign substances from penetrating from the outside

Independent primary and secondary seal
guarantees maximum tightness to the atmosphere according to TA-Luft requirements

Universal range of application
thanks to the absolutely cavity-free structure and the physiologically neutral characteristic of the PTFE/PFA materials touching the product, which makes its use typical in the food and pharmeceutical industries

Economic and easy assembly of all actuator types
The GEFA-MULTITOP automation system allows direct mounting of all actuators with the interface according to DIN 3337