Tank Bottom SED Diaphragm Valve

Compact stainless steel tank bottom valves

SED Diaphragm Valves - specials

The SED Tank Bottom Valve is designed for applications in the aseptic process industry offering a pocket-free interior surface, eliminating entrapment areas and minimizing flow resistance thus reducing the potential for process contamination.

The SED tank bottom valve incorporates the same features and performanceof a standard 2-way diaphragm valve from the KMA and Steripure series utilizing the same valve components for a flush mounted tank bottom valve or side mounted tank and sample valve. The SED tank bottom diaphragm valves with a casting body are unique and very affordable.

The datasheet (see below) shows some examples of standard and customized designs of tank diaphragm valves.


  • The tank valve body is machined as standard from solid bar stock material 1.4435/316L
  • The standard design offers one valve port outlet
  • Minimized dead leg and internal sump
  • Suitable for mounting with SED Steripur and KMA series Actuated

Technical information

Sizes 1/2" to 4", DN 4 to DN 100
Material - Body, connections: 1.4435 (316L) Forged or casting
- Membranes: EPDM, PTFE/EPDM
Max. Pressure 10 bar
Temp. range -20 ºC to 140 ºC (EPDM)
-20 ºC to 150 ºC (PTFE/EPDM)
Type of connections Tri-clamp connection (ISO, ASME-BPE, DIN 32676), Flange, Butt Weld, Orbital Weld
Weld connections ISO 1127, ASME-BPE, DIN 11850, BS-4825, SMS 3008
Finishes Interior surfaces SF1
Operation Manual or Pneumatic Actuator
Certificates (standard) 3.1 material, FDA, USP Class VI 121 ºC, {87}, {88}, EHEDG, PED, CE1935/2004, TSE/BSE
Certificates (optional) 2.2 surface finish, ATEX 2GD



  • Options for sampling, sterilization, and multi-outlet configurations
  • Other alloy options available as specified
  • Optional manual operation via an extended crankshaft stem

pdfDatasheet SED Tank Valve
English - 1.2 MB - TD06 0018 Rev. M

pdfDatasheet SED Tank Valves in investment cast
English - 390 kB