Wafer Insert Valve Style - WV

Member of the Insert Series

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Wafer Insert Valve (WV)

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.

NOTES (DIMENSIONS TABLE)
*Maximum nominal dimension for a fully open valve with no spring. Consult factory for more information.

View WV Dimensions in PDF format

Nominal Size Size Code A B C D* Orifice Diameter
1/2 D 1-3/8 0.62 1.38 N/A 0.348
3/4 F 1-3/4 0.82 1.38 N/A 0.464
1 H 2 1.05 1.38 0.35 0.593
1-1/4 I 2-1/2 1.35 1.63 0.27 0.890
1-1/2 J 2-7/8 1.61 1.63 0.54 1.135
2 K 3-5/8 2.07 2.38 0.17 1.385
2-1/2 L 4-1/8 2.47 2.62 0.31 1.555
3 M 5 3.07 2.88 0.42 2.025
4 N 6-3/16 4.03 2.88 1.25 2.560
  • 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)
  • Body Material Nominal Pipe Size Non-Shock Pressure-Temperature Rating
    316 Stainless Steel (SS)
    Carbon Steel (CS)
    Alloy 20 (A2)
    Alloy C-276 (HC)
    Alloy B (HB)
    Alloy 400 or MONEL®(MO)
    Titanium (TI)
    1/2" - 2-1/2" ANSI Class 150 - 1500
    (1500 PSIG for o-ring seats)
    3" ANSI Class 150 - 900
    (1500 PSIG for o-ring seats)
    4" ANSI Class 150 - 600
    Brass (BR) 1/2" - 4" ANSI Class 150 - 300

    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.

    Size Cv
    1/2 2.4
    3/4 4.4
    1 6.1
    1-1/4 12.7
    1-1/2 18.8
    2 32.0
    2-1/2 42.5
    3 89.0
    4 144

    P
    R
    E
    S
    S
    U
    R
    E

    D
    R
    O
    P

    P
    S
    I

    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.

    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 weights are approximate.
    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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