SED – ZDL T-valve Zero Dead Leg Diaphragm valve

T-diaphragm valve ZDL with stainless steel or plastic actuator


  • Customer’s specific design
  • Compact design and smaller envelope dimension is achievable with the Steripur Series actuators
  • Combination of many different nominal diameters
  • Optimized drainability
  • Minimized dead leg
  • Reduces surface contact, hold up volume and cross contamination of the product
  • Reduction of fittings, tubing and field welds in the system
  • Reduces qualification and validation documentation requirements
  • All end connections and materials are available according to the customer’s specification

ROMYNOX delivers the T-valve, with zero dead leg, of SED for high purity applications in the pharmaceutical, food, fine chemical and cosmetic industries.

The zero dead leg diaphragm valves are usually used as a point of use in a WFI loop system. It can also be used as a drain point in other systems. The actuators for valves ZDL are part of the KMA or Steripur Series of SED. The SED T-diaphragm valves are also available with a casting body. This is an unique product of SED.


  • Handles; control valve or open-close signaling
  • materials: 904, hastelloy
  • Special versions: customization are always possible

Read more about Brand: SED

    This product comes in a variety of options.

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    Sizes 1″ to 3″, DN 25 – DN 80
    Max. Pressure 10 bar
    Temp. range -20 ºC to 140 ºC (EPDM)
    -20 ºC to 150 ºC (PTFE/EPDM)
    Type of connections Butt Weld
    Weld connections ASME-BPE, DIN 11850, SMS 3008
    Material – Body, connections: 316L (1.4435) Forged or casting
    – Bonnet: 316L (1.4435)
    – Membranes: EPDM, PTFE/EPDM
    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


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      Standard certificates


      Optional certificates

      2.2 Surface Finish ATEX

      You can contact us or ask for your Optional Certificate in your quotation.

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