SED – KMA 195 SED Diaphragm valve

Pneumatically operated and Stainless Steel Bonnet and Plastic Actuator - DN 8-20


  • Efficient plastic piston actuator with stainless steel distance piece
  • Control air connection 90° to flow direction
  • Compact design, the outside diameter of the actuator is the same size as the bonnet flange
  • CDSA sealing concept
  • Flexible diaphragm suspension
  • Encapsulated diaphragm
  • Optical indicator


Suitable for

Multiport bodies, T-bodies, Tank bottom bodies, Two-way bodies, Welded configurations


Butt Weld, Flange, Tri-Clamp


SF1, SF4

Man. process



316L (1.4435), Polyarylamide (Ixef)



Weld connection

ASME-BPE, BS-4825, DIN 11850, ISO 1127, SMS 3008




Romynox delivers KMA diaphragm valve series SED for high purity applications in the pharmaceutical, food, fine chemical and cosmetic industries. The KMA 195 comes with a very compact design which makes it very suitable for T- and block valves.


The valve is designed for applications with high purity, dirty and aggressive fluids, and gases. Smooth surfaces, no explored nuts, no edges, and outside self-draining in all assembly, positions describe the optimised wash down design. The KMA series meets the high demands of the pharmaceutical industry.


  • Investment cast
  • Surface finish Ra value to max 0.25 ?m
  • Other materials
  • Client specific connections
  • Available with a wide range of control equipment and accessories, also for retrofitting
  • Control air connection in flow direction

Technical information

seizetube: 3/8″ tot 3/4″, DN 8 tot DN 20
Membrane: MA 10
Max. Pressure8 bar (EPDM)
7 bar (PTFE/EPDM)
Temp. range-20 ºC to 140 ºC (EPDM)
-20 ºC to 150 ºC (PTFE/EPDM)
weight0,8 kg
type connectionsTri-clamp connection (ISO, ASME-BPE, DIN 32676), Flange, Butt Weld
Weld connectionsISO 1127, ASME-BPE, DIN 11850, BS-4825, SMS 3008
Material– Body, connections: 316L (1.4435) Forged
– Bonnet: 316L (1.4435)
– Actuator: Polyarylamide (Ixef)
– Membranes: EPDM, PTFE/EPDM
surface treatmentInternal surface finish SF1
controlPneumatic Actuator
Control functionNormally Closed, Normally Open or Double Acting
actuator suitable forTwo-way bodies, welded connecties, T-bodies, Multiport bodies, Tank bottom bodies
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