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Thermoplastic Valves Product Guide & Engineering Specifictions
Compression Utility Swing & Spring Check Valves
Made in the U.S.A. Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gas Page 806
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Dimensions
Nominal
Size
Dimension Reference (inches, ± 1/16)
AB C D
1/2 1-3/4 1-3/4 5-15/16 2-1/8
3/4 2-1/16 1-3/4 6 2-1/8
1 2-7/16 2-1/4 6-5/16 2-21/32
1-1/4 2-15/16 2-15/16 8-9/16 3-3/8
1-1/2 3-5/16 2-15/16 8-17/32 3-3/8
2 3-3/4 3-1/2 9-7/32 4-1/4
2-1/2 4-11/16 4-1/4 11-3/32 5-1/8
3 5-7/16 4-9/16 12-3/8 5-23/32
4 6-3/4 5-15/16 16-7/8 6-3/8
General Installation Information: Swing check valves are designed for horizontal installations, but
may be installed in up-flow only vertical position. Check valves MUST be installed with the valve's
FLOW arrow pointing in the direction of the flow. Do not install valve upside down. Flow velocity
should not exceed 5 ft./sec. Minimum opening pressure less than 0.5 psi.
B
C
D
A
FLOW
WARNING: The compression joints provide a positive seal but do not restrain pipe from thrust and movement under
pressure. Use of compression joint requires blocking of connecting pipe to prevent any movement. Failure to do so can
result in system failure or severe personal injury. Use in cold water/fluid applications only.
Temperature Pressure Rating
System Operating
Temperature °F (°C)
100
(38)
110
(43)
120
(49)
130
(54)
140
(60)
150
(66)
160
(71)
170
(77)
180
(82)
190
(88)
200
(93)
210
(99)
Valve
Pressure
Rating psi
(MPa)
1/2" - 4" PVC
150
(1.03)
135
(.93)
110
(.76)
75
(.52)
50
(.34)
-0-
(-0-)
-0-
(-0-)
-0-
(-0-)
-0-
(-0-)
-0-
(-0-)
-0-
(-0-)
-0-
(-0-)
150
(1.03)
140
(.97)
130
(.90)
120
(.83)
110
(.76)
100
(.70)
90
(.62)
80
(.55)
70
(.48)
60
(.41)
50
(.34)
-0-
(-0-)