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SD4 Series - Double Seal Valves

Model :
Product Type(s) :
Series :
Description :

FEATURES

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 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.
  • Specifications
  • Dimensions
  • Options
  • Performance

Sizes:  1" - 4" / DN25 - DN100 Product Wetted Parts: AISI 316L / 1.4404 Non-Product Wetted Parts:  AISI 304 / 1.4301 Seal Materials: 

  • Standard EPDM
  • Optional: HNBR, FPM

Min. Control Air Pressure: 87 PSI (6 bar) Max. Control Air Pressure: 116 PSI (8 bar)

SD4 Series Double Seal Valve Dimensions

View SD4 Series Double Seal Valve Dimensions in the Operation and instruction Manual

Valve configurations*:

Standard shut-off:  DELTA SD4

Aseptic diaphragm valve:  DELTA SDMS4

Change-over valve:  DELTA SDU4

Tank outlet:  DELTA SDT4

*Combinations of the configurations listed are also available, e.g. aseptic tank outlet version (DELTA SDTMS4) and aseptic change-over valves (DELTA SDMSU4).

Pressure Ratings:

Operating Pressure:  Maximum line pressure: 145 psi (10 bar)

Temperature Ratings:

Operating temperature: Maximum  275ºF (135°C),  Short time 284ºF (140ºC) - no steam

VIDEOS

SD4 Double Seal Valve Maintenance Procedures - English

SD4 Double Seal Valve Maintenance Procedures - Chinese

DELTA SD4 Double Seal Valves - Open and Closed Positions

DELTA SD4 Double Seal Valves - NOT Element

DELTA SD4 Double Seal Valve - Cleaning in Open Position

DELTA SD4 Double Seal Valve Cleaning the Leakage Chamber

Mix Proof Valve Manifold Demonstration

Valve DELTA SD4 Double Seal Maintenance

Downloads

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