GEMÜ 491 Edessa

Pneumatically operated butterfly valve

  • Technical specifications
  • Accessories
  • Connection: Flange (lug); Flange (wafer)
  • Actuator: Pneumatic
  • Seal material
  • Body material: 1.4404, block material; EN-GJS-400-18-LT, SG iron material; S355J2 + N, cast steel material; VE Duroplast, reinforced
  • Conformities: ATEX; EAC; FDA; Functional safety; TA Luft (German Clean Air Act); USP
  • Max. operating pressure: 10 bar
  • Max. media temperature: 200 ° C
  • Min. media temperature: -20 ° C
  • Nominal sizes: DN 40 (1 1/2''); DN 50 (2''); DN 65 (2 1/2''); DN 80 (3''); DN 100 (4''); DN 125 (5''); DN 150 (6''); DN 200; DN 250; DN 300; DN 350; DN 400; DN 450; DN 500; DN 600

Fitting Accessories

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Innovative methods for freeze-drying pharmaceutical products

Product applications

Many pharmaceutical manufacturing procedures are based on bio-technological processes. Often, their molecular structure is extremely complex and their liquid form is unstable, which is why many bio-pharmaceuticals cannot be stored directly. Freeze-drying is the gentlest procedure for conserving the active ingredient solution. Because of critical operating conditions the butterfly valve GEMÜ 490 is particularly important.