Steripur 997 - SED Diaphragm valve

Manually operated valve with stainless steel bonnet and handwheel

SED Diaphragm Valves

Steripur 997 SED Diaphragm valve for high purity applications in the pharmaceutical, food, fine chemical and cosmetic industries.

These valves are predestined for applications with high purity, dirty or aggressive fluids and gases. Its smooth surface, without nuts or edges, combined with a self-draining exterior in all assembly positions, gives it an optimised design to be cleaned.
The Steripur is mostly used in conditions where diaphragm valves entirely made of stainless steel offer added value, such as cleanrooms or aggressive (corrosive) environments. The Steripur 997 is manually operated.


  • Stainless steel bonnet and hand wheel
  • Manual actuated with non-rising handwheel with optical indicator
  • Sealed bonnet
  • CDSA sealing concept
  • Flexible diaphragm suspension
  • Encapsulated diaphragm
  • Suitable for autoclave

Technical information

Sizes Tube: IMP 2 1/2” – 2 ”; DN 65 – 100
Diaphragm: MA 80, 100
Max. pressure 10 bar (EPDM)
8 bar (PTFE/EPDM)
Temp. range
  • -20 ºC to 140 ºC (EPDM)
  • -20 ºC to 150 ºC (PTFE/EPDM)
  • Tri-Clamp (ISO, ASME-BPE, DIN 32676)
  • Flange
  • Butt weld
Weld connections ISO 1127, ASME-BPE, DIN 11850, BS-4825, SMS 3008
  • Body & connections: 316L (1.4435) forged
  • Bonnet: 316L (1.4435)
  • Handwheel: 316L (1.4435)
  • Diaphragms: EPDM, PTFE/EPDM
Finishing surface finish Ra value to max 0.25 μm
Bonnets suitable for two-way bodies, welded configurations, T-bodies, multiport bodies, tank bottom bodies
Operation Manual
Certificates 3.1 material, FDA, USP Class VI 121 C, EHEDG, PED, CE 1935/2004, TSE/BSE
Certificates (optional) 2.2 surface finish, ATEX 2GD


  • Investment cast
  • Other materials
  • Surface finish Ra value to max. 0.25 µm
  • Client specific connections
  • Adjustable internal travel stop or stroke limiter
  • Locking device

pdfSteripur 997 Datasheet - DN 65-100 mm
English - 349 kB - TD06 0018 Rev. M