Product Overview

Utility Swing Check Valves
z
Engineered for Maximum Flow, Quick Response &
Positive Shutoff
z
Excellent for Pool & Spa, OEM and General Purpose
Applications
z
Compact, Space-Saving Design
z
PVC White or Clear Sealed Unit
z
All Plastic Construction – No Metal Parts
z
Angled Seat and Weighted Flapper for Low-Pressure Seal
z
High Grade EPDM Seat
z
Suitable for Horizontal or Vertical Up-flow Installations
z
Socket, Threaded, or SR Threaded End Connections
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.
Pressure Rating @ 73°F (23°C), Water
Full Flow (open) 150 psi
Back Pressure (closed) 75 psi
Maximum Service Temperature
140°F (60°C)
Temperature/Pressure De-ratings Apply
PVC White
Size Socket Thread SR Threaded
Std
Pk
Mstr
Pk
Disc
Code
1/2
S1520-05
15.85
S1520-05F
15.85
S1520-05FSR
18.49
35 0 026
3/4
S1520-07
16.36
S1520-07F
16.36
S1520-07FSR
20.12
35 0 026
1
S1520-10
17.04
S1520-10F
17.04
S1520-10FSR
22.28
20 0 026
1-1/4
S1520-12
17.70
S1520-12F
17.70
S1520-12FSR
26.11
12 0 026
1-1/2
S1520-15
18.76
S1520-15F
18.76
S1520-15FSR
33.12
12 0 026
2
S1520-20
29.12
S1520-20F
29.12
S1520-20FSR
44.70
15 0 026
2-1/2
S1520-25
48.44
S1520-25F
48.44
S1520-25FSR
64.02
50026
3
S1520-30
53.83
S1520-30F
53.83
S1520-30FSR
95.47
40026
4
S1520-40
76.21
S1520-40F
76.21
S1520-40FSR
119.36
20026
6
S1520-60
160.13
S1520-60F
160.13
S1520-60FSR
211.21
10026
8
S1520-80
297.47
--- --- 1 0 026
PVC Clear
Size Socket Thread SR Threaded
Std
Pk
Mstr
Pk
Disc
Code
1/2
S1520C05
21.55
S1520C05F
21.55
S1520C05FSR
24.18
35 0 026
3/4
S1520C07
21.97
S1520C07F
21.97
S1520C07FSR
25.76
35 0 026
1
S1520C10
22.39
S1520C10F
22.39
S1520C10FSR
27.64
20 0 026
1-1/4
S1520C12
23.51
S1520C12F
23.51
S1520C12FSR
31.89
12 0 026
1-1/2
S1520C15
25.55
S1520C15F
25.55
S1520C15FSR
39.93
12 0 026
2
S1520C20
36.78
S1520C20F
36.78
S1520C20FSR
52.36
15 0 026
2-1/2
S1520C25
61.31
S1520C25F
61.31
S1520C25FSR
85.47
50026
3
S1520C30
68.13
S1520C30F
68.13
S1520C30FSR
109.76
40026
4
S1520C40
91.71
S1520C40F
91.71
S1520C40FSR
134.83
20026
6
S1520C60
189.55
S1520C60F
189.55
S1520C60FSR
240.64
10026
8
S1520C80
316.63
--- --- 1 0 026
NOT FOR USE WITH COMPRESSED AIR OR GAS
Page 1 Spears
®
Manufacturing Company
Progressive Products from Spears
®
Innovation and Technology