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.
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Style

Size (in)

Size (mm)

Cv

Prod. #

ASME CLASS

ASME CWP

Style

Size

Horizontal Cracking Pressure CP

Body

ENDS

Cv

N/A 108 N/A 150 N/A Vertical N/A 0.50 inDN 15 N/A 0.02 bar0.29 psig N/A 316L SS N/A Clamped N/A 2.4
N/A 108 N/A 150 N/A Vertical N/A 0.75 inDN 20 N/A 0.02 bar0.29 psig N/A 316L SS N/A Clamped N/A 7
N/A 108 N/A 150 N/A Vertical N/A 1.00 inDN 25 N/A 0.025 bar0.36 psig N/A 316L SS N/A Clamped N/A 18
N/A 108 N/A 150 N/A Vertical N/A 1.50 inDN 40 N/A 0.019 bar0.28 psig N/A 316L SS N/A Clamped N/A 38
N/A 108 N/A 150 N/A Vertical N/A 2.00 inDN 50 N/A 0.016 bar0.23 psig N/A 316L SS N/A Clamped N/A 53
N/A 108 N/A 150 N/A Vertical N/A 2.50 inDN 65 N/A 0.037 bar0.54 psig N/A 316L SS N/A Clamped N/A 81
N/A 108 N/A 150 N/A Vertical N/A 3.00 inDN 80 N/A 0.037 bar0.54 psig N/A 316L SS N/A Clamped N/A 109
N/A 108 N/A 150 N/A Vertical N/A 4.00 inDN 100 N/A N/A 316L SS N/A Clamped N/A 174
N/A 108 N/A 150 N/A Horizontal N/A 0.50 inDN 15 N/A 0.02 bar0.29 psig N/A 316L SS N/A Clamped N/A 2.4
N/A 108 N/A 150 N/A Horizontal N/A 0.75 inDN 20 N/A 0.02 bar0.29 psig N/A 316L SS N/A Clamped N/A 7
N/A 108 N/A 150 N/A Horizontal N/A 1.00 inDN 25 N/A 0.025 bar0.36 psig N/A 316L SS N/A Clamped N/A 12
N/A 108 N/A 150 N/A Horizontal N/A 1.50 inDN 40 N/A 0.019 bar0.28 psig N/A 316L SS N/A Clamped N/A 36
N/A 108 N/A 150 N/A Horizontal N/A 2.00 inDN 50 N/A 0.016 bar0.23 psig N/A 316L SS N/A Clamped N/A 47
N/A 108 N/A 150 N/A Horizontal N/A 2.50 inDN 65 N/A 0.037 bar0.54 psig N/A 316L SS N/A Clamped N/A 69
N/A 108 N/A 150 N/A Horizontal N/A 3.00 inDN 80 N/A 0.037 bar0.54 psig N/A 316L SS N/A Clamped N/A 90
N/A 108 N/A 150 N/A Horizontal N/A 4.00 inDN 100 N/A 0.5 psig N/A 316L SS N/A Clamped N/A 137
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