DSV® Sanitary Check Valves

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