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DSV

DSV® Sanitary Check Valves

Product by: DFT Inc.

The DSV® is an in-line spring-assisted check valve designed to prevent flow reversal in industries with strict cleanliness codes. To accommodate various piping arrangements, the DSV® is available as a “Vertical” or “Horizontal” valve. The Horizontal valve is for Horizontal lines requiring a self-draining valve. The “Vertical” design is for “Vertical” installations and “Horizontal” lines when a self-draining valve is not required. The DSV®, with a 316L stainless steel body and seat, is fastened with a quick release clamp and elastomeric body seal to permit fast and easy access to the internals. The disc and seat are lapped to provide excellent shutoff.

The DFT® sanitary check valves meet 3-A Standard 58-02 and certified Clean in Place. Applications include pharmaceutical, chemical, beverage/beer, food, dairy industries and others.

Standard Features:

  • Meets 3A Sanitary Standard 58-02
  • Sizes 1/2″ thru 4″
  • 150 CWP, 108 ANSI Pressure Class
  • 316L Body and Seat (A351 CF3M)
  • 316 Disc, Spring and Guide Assembly
  • 32 Ra Internal Surface Finish (#4 Ground Finish)
  • Options:
    • 15 Ra Internal Finish
  • CIP (Clean in Place)
  • Clamped Ends
  • Seat Leakage per MSS SP-61
  • Edge-Guided Disc: 1/2″ thru 2″
  • Edge/Center-Guided disc: 2 1/2″, 3″, 4″
  • Lapped “metal” Seat and Disc
  • Springs:
    • Low Cracking Pressures
    • 0.16 psig to 0.66 psig
    • Conical Design
    • Electropolished Finish
  • Standard Gasket Body Seal:
    • EPDM (300ºF Max Temperature)
  • Spring-Assisted Silent Closing
  • Horizontal or Vertical Installation

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