SED – Multi block Diaphragm valve

Compact multiblock with stainless steel diaphragm valves and stainless steel or plastic actuators


  • compact
  • one block of stainless steel
  • minimal surface contact
  • faster and easier cleaning (SIP-CIP)



Butt Weld, Tri-Clamp



Man. process



316L (1.4435), Polyarylamide (Ixef)


Actuator, Manual

Weld connection

ASME-BPE, DIN 11850, ISO 1127, SMS 3008




Romynox delivers SED multi block diaphragm valves for high purity applications in the pharmaceutical, food, fine chemical and cosmetic industries. The SED multi block diaphragm valves includes the same features and performance of a standard 2-way diaphragm valve of the KMA and Steripur series.


By using SED multiblock the diaphragm valves design process circuits can be assembled from one block of stainless steel. Due to a minimal of contact makes the system faster. And cleaning is easier  (CIP –SIP). With this design seal mass will be removed as much as possible. This will increase the heat absorption and the valve assembly quickly sterile (SIP).

The multiport valves can be made in many different variations according to the wishes. For various examples see datasheet at the bottom of this page.


  • Handle: control valve or open-close signaling
  • Other materials: 904, Hastelloy
  • Special versions: Customization is always possible

Technical information

SizesBore: DN 4 to DN 10
MaterialBody: 316L , (forged)
Diaphragms: EPDM, PTFE, silicone
Actuators: stainless steel or plastic
max temp150°C
max. presure10 bar
Connections– Orbital welding connection with standards; ISO, ASME , DIN and SMS
– Tri-clamp connection with standards; ASME BPE, DIN 32676 , DIN 11861
Finish:– surface finish Ra value to max 0.25 um
– electro- polished or only mechanically polished
– or ASME BPE 2012 Table SF5
Operationmanual and actuator (pneumatic)
Certificates3.1, FDA , USP Class VI , CE / PED
Certificates (optional)surface finish certificate, ATEX