SED – KMA 395 Manual Valve DN 15 – 50 mm

Pneumatically operated, Stainless Steel Bonnet and Plastic Actuator DN 15 - 50


  • Plastic piston actuator with stainless steel distance piece
  • Compact design
  • Control air connection 90° to flow direction
  • CDSA sealing concept
  • Flexible diaphragm suspension
  • Encapsulated diaphragm


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 valve is predestined 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 highest demands of the pharmaceutical industry.


  • Investment cast
  • Other materials
  • Surface finish Ra value to max 0.25 μm
  • Client specific connections
  • Available with a wide range of control equipment and accessories, also for retrofitting
  • Control air connection 90° to flow direction

Technical information

seizesIMP 3/4″ tot 21/2″ , DN 15 tot DN 50
Membrane: MA 25, MA 40, MA 50
Max. Pressure10 bar (EPDM)
8 bar (PTFE/EPDM)
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
weld conectionsISO 1127, ASME-BPE, DIN 11850, BS-4825, SMS 3008
Material– Body, connections: 316L (1.4435) Forged
– Bonnet: 316L (1.4435)
– Actuator: Polyarylamide (Ixef)
– Diaphragms: EPDM, PTFE/EPDM
surface treatmentInteral surface finish SF1
controlPneumatic Actuator
Control functionNormally Closed, Normally Open or Double Acting
actuator suitable forTwo-Way bodies, Welded configuraties, 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