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Thermoplastic Valves Product Guide & Engineering Specifictions
True Union 2000 Industrial Ball Check Valves
Page 731 Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gas Spears
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Manufacturing Company
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Temperature Pressure Rating
NOTE: Flanged valves have a base pressure rating of 150 psi
Replacement Parts
Dimensions, Weights, & C
v Values
1: Valve Lay Length
2: Gallons per minute at 1 psi pressure drop. Valves calculated from laying length, based on derivative of Hazen-Williams equation with surface roughness factor of C=150.
3: 8" Venturied Valves are 6" ball valves fitted with 6x8 end connector adapters
General Installation Information: Ball check valves may be installed in either horizontal or vertical position. A minimum
of ten (10) pipe diameters distance maintained from any pump or other source of turbulence. Check valves MUST be installed
with the valves FLOW arrow pointing in the direction of flow.
No. Component Qty. Material
1 Seal Carrier 1 PVC/CPVC
2 Seal Carrier Nut 1 PVC/CPVC
3 Carrier O-ring 1 EPDM/FKM
4 Seat Plate 1 PVC/CPVC
5 Seat O-ring 1 EPDM/FKM
6 Body 1 PVC/CPVC
7 Ball 1 PVC/CPVC
8 Union Nut 2 PVC/CPVC
9 End Connector O-ring 2 EPDM/FKM
10 End Connector 2 PVC/CPVC
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
235
(1.62)
211
(1.45)
150
(1.03)
75
(.52)
50
(.34)
-0-
(-0-)
-0-
(-0-)
-0-
(-0-)
-0-
(-0-)
-0-
(-0-)
-0-
(-0-)
-0-
(-0-)
CPVC
235
(1.62)
219
(1.51)
170
(1.17)
145
(1.00)
130
(.90)
110
(.76)
90
(.62)
80
(.55)
70
(.48)
60
(.41)
50
(.34)
-0-
(-0-)
6" and 8"
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-)
CPVC
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-)
Nominal
Size
Dimensions Reference (inches, ± 1/16)
Approx. Wt.
(Lbs.)
Cv
Values
Horizontal
Closing
A
B
1
C
F G PVC CPVC Soc/Thd Flange Spigot
Feet of
Head
(water)
GPM
(minimum)
Soc/Thd Spigot Socket Thread Spigot
1/2 1-7/8 2-7/16 2-7/8 4-3/16 3-13/16 4-5/8 3-1/2 2-31/32 .30 .33 6.3 6 6.3 1.6 .10
3/4 2-1/4 2-3/4 3-1/4 4-3/4 4-1/4 5-1/4 3-7/8 3-5/16 .46 .50 17 16 17 1.6 .10
1 2-1/2 2-7/8 3-1/2 5-1/8 4-11/16 5-3/4 4-1/4 3-5/8 .70 .74 25 24 25 1.6 .25
1-1/4 3-1/16 3-1/4 3-3/16 5-3/4 5-3/16 6-5/16 4-5/8 3-31/32 1.04 1.09 65 61 65 1.6 .40
1-1/2 3-1/2 3-1/2 4 6-1/4 5-7/16 6-3/4 5 4-3/8 1.37 1.45 86 82 86 1.6 .75
2 4-5/16 4-25/32 5-3/16 7-3/4 7-27/32 8-1/4 6 5-1/4 2.47 2.62 130 125 130 1.6 .75
2-1/2 6-3/16 5-7/8 7-13/16 9-5/16 8-1/2 11-3/8 7-1/2 6 6.80 7.25 200 193 200 1.0 1.50
3 6-3/16 6-7/8 7-13/16 10-11/16 9-3/4 11-9/16 7-1/2 6-13/16 6.98 7.35 275 268 275 1.0 4.00
4 7-3/4 7-5/16 8-1/4 11-13/16 10-1/4 12-3/4 9 7-1/2 12.13 12 .96 500 489 500 1.0 5.50
6 11-5/8 11-1/6 13 17-1/16 15-3/4 18-1/2 11-1/4 10-3/16 37.07 39.98 800 794 800 N/A N/A
8
3
11-5/8 23-3/16 --- 31-7/8 --- --- 13-1/2 17-13/16 50.84 55.92 N/A N/A N/A N/A N/A