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APV SD4 Double Seal Valve

  • APV DELTA SD4 Mixproof Valve

    APV_DELTA_SD4_SDM4

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  • APV DELTA SD4 Mixproof Valve
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  • SD4 Valve Maintenance Video Icon
  • SD4 Valve Operation Icon
  • SD4 Valve Operation Icon
  • SD4 Valve Operation Icon
  • SD4 Valve Operation Icon
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Product Type:

double seal valves

Safe flow valve for safe media separation.
 
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APV DELTA SD4 valves are (double seal) safe flow valves designed for safe media separation applications in the food, beverage, dairy, pharmaceutical and chemical industries. It is available as a shut-off, change-over and tank bottom valve. Other configurations are available on request.


The APV DELTA SD4 valve is available as a shut-off valve in 4 standard housing configurations. Other configurations are available on request.´

Advantages

  • Leakage chamber arranged between the seat seals; the leakage chamber being forcibly closed (open valve) by the two leakage discharge valves (NO) or opened to the atmosphere (closed valve).
  • Excellent hygienic characteristics primarily due to the ball-shaped housing without sump or dome.
  • Profile seat seals providing crevice-free sealing and the compression of the seat seals is controlled by a metallic stop.
  • Leakage discharge valves to drain the neutral area between the seat seals. The leakage discharge valves (activated together with main actuator) are also used as flush - enabling CIP and SIP cleaning of the neutral area.
  • Actuator and control unit are standard parts from the SW4 product line. Additionally, a NOT element is fitted to the control unit as standard enabling to maintain higher line pressures.

All product-wetted parts are made of AISI 316L / 1.4404 (DIN EN 100888). Seat seal materials are EPDM (standard), HNBR, VMQ, FPM (options).


Available in DN 25 – DN 100, 1” – 4”.


Valve variants:

  • Standard shut-off version: SD4, SDE4
  • Long stroke shut-off version: SD4
  • Aseptic version (with PTFE diaphragm support): SDMS4
  • Change-over version: SDU4
  • Tank bottom version: SDT4

SD4 Double Seal Valve Maintenance Procedures - English



SD4 Double Seal Valve Maintenance Procedures - Chinese



SD4 Double Seal Valve Operation Animations