Product Overview
1127 Spears
®
Manufacturing Company
NOT FOR DISTRIBUTION OF COMPRESSED AIR OR GAS
Progressive Products from Spears
®
Innovation and Technology
Utility Swing & Spring Check Valves
Features - PVC White & PVC Clear
Spears
®
Utility Swing Check and spring assisted Utility
Spring Check Valves offer a compact, high performance
check valve for Landscape & Irrigation, Pool & Spa,
Aquaculture, OEM and many general purpose applications.
These maintenance free sealed units feature long-life EPDM
elastomer seats with weighted disc for full-flow with minimal
restriction and positive shutoff. Spring assisted “Spring
Check” model incorporates a positive-pressure spring to
assist in valve closing without slamming. Produced from
PVC White or PVC Clear material with Socket, Threaded
or SR Threaded end connectors. Available in IPS Sizes 1/2"
through 8" for Swing Check Valves and 1/2" through 4" for
Spring Check Valves.
•
Chemical & Corrosion Resistant PVC White or High
Visibility PVC Clear Construction
•
No Metal Parts on Swing Check - Stainless Steel
Spring on Spring Check
•
Maintenance Free Sealed Unit in a Compact Space
Saving Design
•
Engineered for Maximum Flow, Quick Response &
Positive Shutoff
•
Long-Life, High Grade EPDM Seat with Weighted Disc
•
Spring Assisted Spring Check Model Option for
Positive Closing
• Sizes 1/2" – 8" Pressure Rated to 150 psi @ 73°F
Full-Flow (open) and 75 psi @ 73°F Back Pressure
(closed)
•
Suitable for either Horizontal or Vertical Up-flow
Installations and Vacuum Service
•
NSF
®
Certified for Potable Water Use
•
Silicone-Free Assembly
Sample Engineering Specification
All thermoplastic check valves Shall be Utility Swing Check
or Utility Spring Check type constructed form PVC Type I,
ASTM D 1784 Cell Classification 12454. All valves shall
be maintenance free seal unit construction with EPDM
seat and weighted disc. All Spring Check Valves shall have
stainless steel spring assisted operation. All valves shall
have external flow arrow direction designation. All valves
shall be certified by NSF International for use in potable
water service. All valves shall be pressure rated to 150 psi
for water @ 73°F in full flow (open) position and to 75 psi
@ 73°F back pressure (closed), as manufactured by Spears
®
Manufacturing Company.
Valve
Size
Seat
Material
PVC Material
1
Pressure
Rating
Socket Threaded SR Threaded
1/2 EPDM S1520-05 S1520-05F S1520-05FSR
150 psi
@ 73°F
Full Flow
(Open)
75 psi
Back
Pressure
(Closed)
3/4 EPDM S1520-07 S1520-07F S1520-07FSR
1 EPDM S1520-10 S1520-10F S1520-10FSR
1-1/4 EPDM S1520-12 S1520-12F S1520-12FSR
1-1/2 EPDM S1520-15 S1520-15F S1520-15FSR
2 EPDM S1520-20 S1520-20F S1520-20FSR
2-1/2 EPDM S1520-25 S1520-25F S1520-25FSR
3 EPDM S1520-30 S1520-30F S1520-30FSR
4 EPDM S1520-40 S1520-40F S1520-40FSR
6 EPDM S1520-60 S1520-60F S1520-60FSR
8 EPDM S1520-80 N/A N/A
Valve
Size
Seat
Material
PVC Material
1
Pressure
Rating
Socket Threaded SR Threaded
1/2 EPDM S1580-05 S1580-05F S1580-05FSR
150 psi
@ 73°F
Full Flow
(Open)
75 psi
Back
Pressure
(Closed)
3/4 EPDM S1580-07 S1580-07F S1580-07FSR
1 EPDM S1580-10 S1580-10F S1580-10FSR
1-1/4 EPDM S1580-12 S1580-12F S1580-12FSR
1-1/2 EPDM S1580-15 S1580-15F S1580-15FSR
2 EPDM S1580-20 S1580-20F S1580-20FSR
2-1/2 EPDM S1580-25 S1580-25F S1580-25FSR
3 EPDM S1580-30 S1580-30F S1580-30FSR
4 EPDM S1580-40 S1580-40F S1580-40FSR
1: For PVC Clear Spring Check, replace dash (-) separator with the letter “C” in the
part number (e.g. S1580C05), (e.g. S1580C05F) or (e.g. S1580C05FSR)
1: For PVC Clear Swing Check, replace dash (-) separator with the letter “C” in the
part number (e.g. S1520C05), (e.g. S1520C05F) or (e.g. S1520C05FSR)
Quick-View Utility Swing Check
Valve Selection Chart
Quick-View Utility Spring Check
Valve Selection Chart