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Manually operated butterfly valve

  • Description
  • Features
  • Technical specifications
  • Accessories

The GEMÜ D487 soft seated butterfly valve is manually operated. It has a metal hand lever or gearbox according to customer requirements. The butterfly valve is available in nominal sizes DN 25 - 1600 and in various body versions such as Wafer, Lug and U section.

  • Advanced seal design - even for larger diameters
  • Modular construction
  • Extensive applications using a variety of materials
  • Simple installation
  • Drinking water approval DVGW
  • Connection: Flange
  • Actuator: Manual
  • Body material: 1.4408, cast stainless steel; Cast steel (ASTM A216 WCB); EN-AC-4700, cast aluminium; EN-GJL-250; S275JR, steel
  • Max. operating pressure: 16 bar
  • Max. media temperature: 210 ° C
  • Min. media temperature: -60 ° C
  • Nominal sizes: DN 25 (1''); DN 32 (1 1/4''); 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; DN 700; DN 800; DN 900; DN 1000; DN 1200; DN 1400; DN 1600

Fitting Accessories

Product video

Quality is the sum of all the parts: GEMÜ butterfly valve test rig

03:53 min
Online since 16.09.2015
Water treatment plant in swimming pool processes

Product applications

Water treatment plant in swimming pool processes

Keeping indoor and outdoor swimming pool water clean – so that you can enjoy a beautifully clear bathing experience – requires several important process steps to maintain the water quality both before and during use. There are two key steps here: 1. Preparing the raw water for use in public pools; 2. Continuously pumping the water in the swimming pool through a circuit and thereby cleaning it to maintain its quality and keep it free of contaminants/germs that could potentially cause illnesses.