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GEMÜ Types 658 – 688 Pneumatically Actuated Diaphragm Valves with Two-Stage Actuator

  • Nominal Size: DN 10 – DN 65

  • Operating Pressure: 0–10 bar

  • Operating Temperature: -10°C to +100°C

  • Application Area: Shut-off and control of aseptic fluids

  • Body Materials: Stainless steel 1.4408 / 1.4435 / 1.4539

  • Diaphragm Materials: EPDM / FKM / PTFE-EPDM composite

  • Connections: Weld ends / Threaded / Tri-Clamp / Flanged

  • Actuation: Pneumatic actuator – Normally Closed, two-stage

  • Instruments / Accessories: Electric position indicator with microswitches or proximity sensors

  • Body Configuration: 2/2-way, T-body, or multiblock M design

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25 years of expertise

The STRING team offers specialized after-sales consulting

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STRING S.R.L. CUI: RO 12693784, J10/78/2000

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Group 77
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STRING, founded in 2000, is a Romanian company specializing in industrial fluid control solutions. We are the exclusive representative in Romania and Moldova for leading brands such as GEMÜ, BERNARD CONTROLS DEUFRA, WEY SISTAG, BRAY, STRAUB, and DOCKWEILER, and we offer ISO-, SRAC-, and IQNet-certified products and services.

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STRING S.R.L.

CUI: RO 12693784, Nr. J10/78/2000

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