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Thermoplastic Valves Product Guide & Engineering Specifictions
Industrial Swing Check Valves
Page 799 Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gas Spears
®
Manufacturing Company
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Replacement Parts
No. Component Qty. Material
13 Seal Carrier 1 PVC/CPVC/PP
14 Body O-ring 1 EPDM/FKM
15 Arm Pin 1 PVC/CPVC/PP
16 Arm Pin Seal 2 FKM
17 Arm Pin Plug 1 PVC/CPVC/PP
18 Arm Pin Washer 1 SS 316
19 Arm Pin Bolt 1 SS 316
20 Indicator 1 PP
21 Counterbalance 1 PVC
22 Weight Block 1 PVC
23 Weight Block Bolt 2 SS 316
24 Arm Pin Ret. Clip 1 PP
No. Component Qty. Material
1 Body 1 PVC/CPVC/PP
2 Plug 1 PVC/CPVC/PP
3 Plug O-ring 1 EPDM/FKM
4 Disc O-ring A 1 EPDM/FKM
5 Disc 1 PVC/CPVC/PP
6 Disc Ret. Clip 1 PP
7 Disc O-ring B 1 EPDM/FKM
8 Swing Arm 1 PVC/CPVC/PP
9 Nut 12-30 SS 316
10 Washer 24-60 SS 316
11 Bolt 12-30 SS 316
12 Bonnet 1 PVC/CPVC/PP
Nominal
Size
Bolt Circle
Diameter
Bolt Hole
Diameter
Number of
Bolt Holes
3/4 2-3/4 5/8 4
13-1/85/8 4
1-1/4 3-1/2 5/8 4
1-1/2 3-7/8 5/8 4
24-3/43/4 4
2-1/2 5-1/2 3/4 4
363/44
47-1/23/4 8
69-1/27/8 8
8 11-3/4 7/8 8
C
v
Values
1: Gallons per minute at 1 psi pressure drop.
Valve Size Cv
1
3/4 18
124
1-1/4 70
1-1/2 70
295
2-1/2 300
3 300
4 480
6 1100
8 1900
Nominal
Size
A B C D E F G1 G2 G3 H I
Approx. Wt (Lbs.)
PVC CPVC
3/4 5-5/16 5-1/2 3-7/8 3/4 3-3/4 3-3/4 2-1/2 3 4 1-7/16 1/2 1.72 1.80
1 6-5/8 6-5/16 4-1/4 31/32 4-1/2 4-1/2 2-25/32 3-7/32 4-7/32 1-21/32 5/8 2.62 2.80
1-1/4 7-3/8 7-3/32 5 1-19/32 4-9/16 5-3/4 3-3/16 3-25/32 4-3/8 1-27/32 23/32 4.61 4.87
1-1/2 7-3/8 7-3/32 5 1-19/32 4-9/16 5-3/4 3-3/16 3-25/32 4-3/8 1-27/32 23/32 4.61 4.87
2 8-1/2 7-7/8 6 2 5-1/4 7 3-9/16 4-1/8 4-23/32 2-29/32 13/16 6.99 7.24
2-1/2 10-3/4 10-1/4 7-1/2 3-1/8 6-3/4 8-5/8 4-1/4 5 6-9/32 3-1/16 7/8 14.77 15.74
3 10-3/4 10-1/4 7-1/2 3-1/8 6-3/4 8-5/8 4-1/4 5 6-9/32 3-1/16 7/8 14.77 15.74
4 11-3/4 11-13/16 9 3-29/32 7-1/4 9-1/2 4-1/2 5-1/4 6-17/32 3-17/32 31/32 18.37 19.78
6 15-5/8 15-3/4 11 5-7/8 9-1/2 13-7/16 6 6-3/4 8-1/32 5-1/32 1 42.64 44.56
8 19-1/8 19-23/32 13-1/2 7-7/8 11-5/8 16-5/16 7 7-3/4 9-1/32 6-1/2 1-5/32 68.85 76.05
Dimensions & Weights