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Construction
The GEMU 611 manually operated 2/2 way metal diaphragm valve has a maintenance-free plastic bonnet. An optical position indicator is integrated as standard.

Features
  • Suitable for inert and corrosive liquid and gaseous media
  • Insensitive to particulate media
  • Compact design (when space is at a premium)
  • Valve body and diaphragm are available in various materials and designs
Advantages
  • Hermetic sealing
  • Optional flow direction, will seal in either flow direction up to full operating pressure
  • Optional mounting position.

Specifications

Type 611
Nominal Size DN 10 DN 12 DN 15 DN 20
Body Configuration 2/2-Way
Connection Butt Weld Spigots ASME BPE Butt Weld Spigots BS 4825, Part 1 Butt Weld Spigots DIN Butt Weld Spigots DIN 11850, Series 1 Butt Weld Spigots DIN 11850, Series 2 Butt Weld Spigots DIN 11850, Series 3 Butt Weld Spigots DIN 11866, series A Butt Weld Spigots EN ISO 1127 Butt Weld Spigots JIS-G 3459 Clamps ASME BPE for pipe ASME BPE length EN 558-1, series 7 Clamps ASME BPE for pipe ASME BPE, short design Clamps DIN 32676 for pipe DIN 11850 length EN 558-1, series 7 Clamps following ASME BPE for pipe EN ISO 1127, length EN 558-1 series 7 One side threaded spigot acc. to DIN 11851, other side cone spigot and union nut acc. to DIN 11851 Threaded Sockets DIN ISO 228 Threaded spigots acc. to DIN 11851
Valve Body Material 1.4435 - BN2 (CF3M) - investment casting Fe<0.5% 1.4435 (316L) forged body 1.4435 (ASTM A 351 CF3M) investment casting (Material equivalency 316 L) 1.4435 (BN2), forged body Fe<0.5% MS, brass
Diaphragm Material EPDM (Material complies with FDA requirements) EPDM (Material complies with FDA requirements) EPDM (Material complies with FDA requirements) FPM PTFE/EPDM, PTFE laminated
Control Function Manually Operated
Surface Finish1 Ra ≤ 0.25 µm, electropolished internal/external Ra ≤ 0.25 µm, mechanically polished internal, blasted external Ra ≤ 0.4 µm, electropolished internal/external Ra ≤ 0.4 µm, mechanically polished internal, blasted external Ra ≤ 0.6 µm, electropolished internal/external Ra ≤ 0.6 µm, mechanically polished internal, blasted external Ra ≤ 0.8 µm, electropolished internal/external Ra ≤ 0.8 µm, mechanically polished internal, blasted external Ra ≤ 6.3 µm, blasted internal/external Ra ≤ 6.3 µm, electropolished internal/external
Max. Ambient Temperature 60 ºC

Working Medium

Working Medium Corrosive, inert, gaseous and liquid media which have no negative impact on the physical and chemical properties of the body and diaphragm material.
Max. Permissible Operating Temperature 80 ºC
  • 1 Ra acc. to DIN 4768; at defined reference points