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GEMÜ 690HP PurePlus

Pneumatically operated diaphragm valve

  • Description
  • Features
  • Technical specifications

The GEMÜ 690HP 2/2-way diaphragm valve has a low-maintenance membrane actuator and is pneumatically operated. "Normally closed" (NC), "Normally open" (NO) and "Double acting" (DA) control functions are available.

  • Compact, lightweight construction and high performance
  • High flow rates
  • Minimal deadleg
  • Proven long life membrane actuator
  • Leak detection hole
  • Simple diaphragm replacement
  • Connection: Spigot
  • Actuator: Pneumatic
  • Actuator movement: Linear actuator
  • Body material: ; Inliner PP-H, grey / outliner PP, reinforced; PVDF
  • Conformities: EAC
  • Max. operating pressure: 10 bar
  • Max. media temperature: 80 ° C
  • Min. media temperature: -10 ° C
  • Nominal sizes: DN 15 (1/2''); DN 20 (3/4''); DN 25 (1''); DN 32 (1 1/4''); DN 40 (1 1/2''); DN 50 (2''); DN 65 (2 1/2''); DN 100 (4'')
  • Control valve
Process equipment wet bench/valves, pipes and fittings

Product applications

Process equipment wet bench/valves, pipes and fittings

In microchip production the highest possible purity of working media and the environment are required. The higher the quality of the semiconductors, the lower are the admissible limiting values for particles and chemical contamination. This effects both the production of the wafers, which are silicon discs on which the switching circuits of the microchips are etched which are sawed out into individual microchips later, and also the production of process materials. The so-called wet benches are production areas where the surfaces of the silicon discs are ground, the switching circuits are etched on with high purity acids and mixed acids and rinsed with high purity water.