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The Wafer Insert (WV) valve is designed to fit between two mating ANSI flanges. Two gaskets are required, instead of the one normally used. The "drop in" valve body fits inside the bolt circle for quick installation and removal in rigid piping applications where the use of the F1, F6, or FP are not practical. Many valves in this series meet API 594 and/or B16.34 requirements. Consult the factory for complete details.
WV valves can also be used as a low pressure relief valve or vacuum breaker by simply using the desired spring settings.
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316 Stainless Steel (SS) Alloy B (HB) Alloy 20 (A2) Alloy C-276 (HC) Brass (BR) Alloy 400 or MONEL® (MO) Carbon Steel (CS) Titanium (TI)
Seat material and spring material selection may limit the recommended service temperature.
See seat ratings, spring ratings, and body material ratings for their respective recommended service temperatures.
Consult the factory for reduced P-T rating above 100 °F. Standard spring material is 316 Stainless Steel.
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FOR WATER AT 72°F ![]() WATER FLOWRATE - GPM Note: All flow curves and Cv values presume the valves are fully open with 1/2 PSI cracking pressure springs. Consult the factory for more information. |
Valve weights are approximate.
SIZE PART NUMBER SS, CS & Alloys BRASS 1/2 WVD 9.5 oz. 10.2 oz. 3/4 WVF 12.6 oz. 13.5 oz. 1 WVH 1.0 lb. 1.1 lb. 1-1/4 WVI 1.8 lb. 1.9 lb. 1-1/2 WVJ 2.4 lb. 2.5 lb. 2 WVK 5.2 lb. 5.6 lb. 2-1/2 WVL 7.2 lb. 7.7 lb. 3 WVM 11.4 lb. 12.4 lb. 4 WVN 17.2 lb. 18.4 lb.
Valve Style | Size Range | Body Materials Other Options | Allowable Seat Materials Other Options | Standard Cracking Pressures Other Options More Info. | Standard Spring Material More Info. | |
WIV | 1/2" - 1-1/2" | 316 SS Brass |
AFLAS® EPDM "Metal to Metal" PTFE |
Buna-N Kalrez® Neoprene Viton® |
1/8
PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
WIV | 1/2" - 1-1/2" | C. Steel | AFLAS® Buna-N Kalrez® "Metal to Metal" |
Neoprene PTFE Viton® |
1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI |
316 SS |
WIV | 2" - 4" | 316SS Brass |
AFLAS® Buna-N EPDM Kalrez® |
"Metal to Metal" Neoprene PTFE Viton® |
1/8 PSI 1/2 PSI 1.5 PSI |
316 SS |
WIV | 2" - 4" | C. Steel | AFLAS® Buna-N Kalrez® "Metal to Metal" |
Neoprene PTFE Viton® |
1/8 PSI 1/2 PSI 1.5 PSI |
316 SS |
WIV | 1/2" - 4" | Alloy 20 Alloy C-276 |
AFLAS® Buna-N EPDM Kalrez® |
"Metal to Metal" Neoprene PTFE Viton® |
1/2 PSI | Alloy C-276 |
WIV | 1/2" - 4" | Alloy 400 or MONEL® | AFLAS® Buna-N EPDM Kalrez® |
"Metal to Metal" Neoprene PTFE Viton® |
1/2 PSI | Alloy 400 or MONEL® |
WIV | 1/2" - 4" | Alloy B | AFLAS® Buna-N EPDM Kalrez® |
"Metal to Metal" Neoprene PTFE Viton® |
1/2 PSI | Alloy B |
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