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Thermoplastic Valves Product Guide & Engineering Specifictions
Single Entry Ball Valves
Page 747 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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Replacement Parts
Dimensions, Weights, Operating Torque & C
v
Values
1: Valve Lay Length
2: Torque required at valve maximum internal pressure rating, 5 ft./sec. flow velocity; due to adjustment differences during installation, actual values may vary.
3: Gallons per minute at 1 psi pressure drop. Values calculated from valve laying length, based on derivative of Hazen-Williams equation with surface roughness factor of C=150.
Temperature Pressure Rating
System Operating Temperature °F (°C)
73
(23)
100
(38)
110
(43)
120
(49)
130
(54)
140
(60)
150
(66)
Valve
Pressure Rating
psi (MPa)
1/2" - 2" PVC
235
(1.62)
146
(1.01)
118
(.81)
94
(.65)
71
(.49)
52
(.36)
-0-
(-0-)
3" - 4" PVC
150
(1.03)
93
(.64)
75
(.52)
60
(.41)
45
(.31)
33
(.23)
-0-
(-0-)
B
C
A
D
E
1
2
3
5
4
6
7
8
9
Nominal
Size
Dimension Reference (inches, ± 1/16)
Approx. Wt.
(Lbs.)
Oper.
2
Torque
(in.-lb.)
C
v
3
Values
A
B
1
CDE
Socket Threaded
1/2 1-15/16 1-1/4 1-5/8 3-1/16 1-5/8 2-1/2 .22 20 38
3/4 2-3/8 1-7/16 2-1/8 3-9/16 2 3 .36 30 76
1 2-5/8 1-5/8 2-1/8 3-7/8 2-5/16 3-15/16 .50 40 146
1-1/4 3-1/8 1-15/16 2-1/4 4-1/8 2-13/16 3-1/2 .75 60 292
1-1/2 3-9/16 2-3/8 2-3/4 4-5/8 3-1/16 3-7/8 1.00 80 412
2 4-5/16 3-1/16 3-5/8 5-1/2 3-3/4 5 2.00 90 720
3 6-3/16 4-3/8 5-3/8 8-1/8 5-1/2 7-5/8 7.00 300 1660
4 7-3/4 5-11/16 6-7/8 9-3/4 6-1/8 9-1/16 12.00 400 3104
Seat O-rings (not shown) on sizes 3" and larger.
No. Component Qty. Material
1 Handle 1 PP
2 Stem 1 PVC
3 Stem O-ring 1 Buna-N/EPDM/FKM
4 Union Nut 1 PVC
5 Seat 2 PTFE
6 Ball 1 PVC
7 Body 1 PVC
8 Carrier O-ring 1 Buna-N/EPDM/FKM
9 End Connector 1 PVC