SDV

Diaphragm Valves
Available 1/2" - 8"
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Main Features

  • Proven weir-type valve body made of cast steel.
  • Cavity-free design.
  • Installation in any orientation (self-draining).
  • TA-Luft certified.
  • Integrated travel stop protecting the diaphragm.
  • Built in position indicator.
  • Easy maintenance (even in place).

Technical Data

  • Flanges according to DIN PN10/16 resp. ASME class 150lbs.
  • Face to face according to EN 558-1 series 1 resp. MSS SP-88.
  • Body/Bonnet: Cast steel 1.0619 (A216 WCB) or stainless steel 1.4408 (A351 CF-8M).
  • Lining: PFA, PFA-AS (conductive) PVDF, PP.
  • Diaphragm: PTFE/EPDM, PTFE-AS (conductive)/EPDM, PTFE/FPM, PTFE-AS (conductive)/FPM, EPDM, PTFE-T/ FEP/EPDM.

Construction of the Valve

Fully lined weir type Diaphragm Valves for shut-off or throttling of corrosive liquids or gaseous media.


Operating conditions (depending on material selection)
  • Pressure: 1mbar (0.014 psi) up to 16 bar (232 psi).
  • Temperature: -30°C (-22°F) up to +150°C (+302°F).

Cavity free design is well suited for high-purity applications.