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The DFT® Model DSV is an in-line assisted check valve designed to present flow reversal in industries with strict cleanliness codes. To accomodate 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 internal surface finish is 25 Ra while the disc and seat are lapped to provide excellent shutoff.

Features:

• Spring-assisted silent closing
• Horizontal or Vertical installation
• Sizes 1/2" thru 3"
• 150 CWP, 108 ANSI Pressure Class
• 316L body and seat
• 25 Ra Internal Surface Finish
• Edge guided disc: 1/2" thru 2"
• Edge/center guided disc: 2-1/2", 3"
• Lapped "metal" seat and disc
• Springs:

• Low cracking pressures
• .16 psig to .66 psig
• Conical Design
• Electropolished finish
• Body Seal: EPDM (standard)
• CIP (Clean In Place)
• Clamped Ends
• Seat Leakage per MSS SP-61
• 3A Standard
• Options:

• 15 Ra Internal Finish
• Body Seals
• Tuf-Flex
• Viton

Contact us:

dft@dft-valves.com

610-363-8903

About DFT Inc.

DFT provides cost effective application engineering assistance, rapid prototyping and fast-turn initial production. Our staff responds quickly and our systems are designed to deliver reliably within our ISO9001-2000 quality management system. For more than fifty years DFT has solved check valve problems, prevented check valve failure and water hammer and solved severe service control valve problems.