Wafer Insert Valve Style – WV

Description

The Wafer Insert (WV) valve (also known as a wafer check 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.

Size & Dimension

Nominal Pipe SizeSize CodeABCD*Oricife Diameter
1/2D1-3/80.621.38N/A0.348
3/4F1-3/40.821.38N/A0.464
1H21.051.380.350.593
1-1/4I2-1/21.351.630.270.890
1-1/2J2-7/81.611.630.541.135
2K3-5/82.072.380.171.385
2-1/2L4-1/82.472.620.311.555
3M53.072.880.422.025
4N6-3/164.032.881.252.560

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

Available Materials

* 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)

Pressure Temperature Table

Body MaterialNominal Pipe SizeNon-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"



3"




4"
ANSI Class 150 - 1500
(1500 PSIG for o-ring seats)
ANSI Class 150 - 900
(1500 PSIG for o-ring seats).
ANSI Class 150 - 600
(1500 PSIG for o-ring seats)
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.

Flow Data

PRESSURE DROP PSI

SizeCv
1/22.4
3/44.4
16.1
1-1/412.7
1-1/218.8
232.0
2-1/242.5
389.0
4144

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

SIZEPART NUMBERSS, CS & AlloyBRASS
1/2WVD9.5 oz.10.2 oz.
3/4 WVF12.6 oz.13.5 oz.
1WVH1.0 lb.1.1 lb.
1-1/4WVI1.8 lb.1.9 lb.
1-1/2WVJ2.4 lb.2.5 lb.
2WVK5.2 lb.5.6 lb.
2-1/2WVL7.2 lb.7.7 lb.
3WVM11.4 lb.12.4 lb.
4WVN17.2 lb.18.4 lb.

Valve weights are approximate.

Seat & Cracking Pressure Options

Valve StyleSize RangeBody Materials
Other Options
Allowable Seat Materials
Other Options
Standard Cracking Pressures
Other Options
More Info.
Standard Spring Material
More Info.
WIV1/2" 1-1/2316 SS BrassAFLAS®
EPDM
"Metal to Metal"
PTFE
Buna-N
Kalrez®
Neoprene
Viton®
1/8 PSI
1/2 PSI
1.5 PSI
3.5 PSI
316 SS
WIV1/2" 1-1/2C. SteelAFLAS®
EPDM
"Metal to Metal"
PTFE
Buna-N
Kalrez®
Neoprene
Viton®
1/8 PSI
1/2 PSI
1.5 PSI
3.5 PSI
316 SS
WIV2" - 4"316 SS BrassAFLAS®
EPDM
"Metal to Metal"
PTFE
Buna-N
Kalrez®
Neoprene
Viton®
1/8 PSI
1/2 PSI
1.5 PSI
316 SS
WIV2" - 4"C. SteelAFLAS®
EPDM
"Metal to Metal"
PTFE
Buna-N
Kalrez®
Neoprene
Viton®
1/8 PSI
1/2 PSI
1.5 PSI
316 SS
WIV1/2" - 4"Alloy 20
Alloy C-276
AFLAS®
EPDM
"Metal to Metal"
PTFE
Buna-N
Kalrez®
Neoprene
Viton®
1/2 PSIAlloy C-276
WIV1/2" - 4"Alloy 400 or MONEL®AFLAS®
EPDM
"Metal to Metal"
PTFE
Buna-N
Kalrez®
Neoprene
Viton®
1/2 PSIAlloy 400 or MONEL®
WIV1/2" - 4"Alloy BAFLAS®
EPDM
"Metal to Metal"
PTFE
Buna-N
Kalrez®
Neoprene
Viton®
1/2 PSIAlloy B

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