Brochure
Thermoplastic Valves Product Guide & Engineering Specifictions
Y-Check Valves
Page 809 Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gas Spears
®
Manufacturing Company
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Features - PVC Gray, PVC Clear & CPVC
Spears
®
Y-Check Valves are an angle type check valve that
automatically stops reverse flow by the dead weight of the
disc plug. Y-checks are less affected by turbulent flow and
typically have lower shutoff characteristics than ball checks.
Valves are available in PVC Gray, PVC Clear, and CPVC
materials in IPS Sizes 1/2" through 4" with Socket, SR
Threaded or Flanged end connections, plus True Union styles
with Socket and SR Threaded ends.
•
Chemical & Corrosion Resistant PVC, PVC Clear, and
CPVC Construction
• Improved Flow Characteristics Over Ball Checks,
Outperforms Spring Loaded Designs
• Easy Access Cap for In-Line Clean Out & Servicing
• Optional True Union Design for Easy Valve Service
Replacement
• Standard O-ring type EPDM or FKM Seat & Seals
• Sizes 1/2" – 2" Pressure Rated to 150psi @ 73°F,
Sizes 3" – 4" Pressure Rated to 90 psi @ 73°F
• Suitable for either Horizontal or Vertical Up-flow
Installations
• Assembled with Silicone-Free, Water Soluble Lubricants
Sample Engineering Specification
All thermoplastic valves shall be Y-Check configuration
manufactured to ASTM F 1970 and constructed from PVC,
ASTM D 1784 Cell Classification 12454, or CPVC, ASTM
D 1784 Cell Classification 23447. All valves shall have
Buttress thread bonnet and standard O-ring type seating disc.
All O-rings shall be EPDM or FKM. All 1/2" - 2" valves
shall be pressure rated at 150 psi and all 3" - 4" valves shall
be pressure rated at 90 psi for water at 73°F, as manufactured
by Spears
®
Manufacturing Company.
Quick-View Valve Selection Chart
1: For CPVC Y-Check, add the letter "C" to the part number (e.g. 1622-005C)
2: For PVC Clear Y-Check, add the letters "CL" to the part number (e.g. 1622-005CL) or (e.g. 162A-005CL)
3: For CPVC or PVC Clear Special Reinforced Y-Check, (e.g. 1621-005CSR) or (e.g.1621-005CLSR)
Valve
Size
O-ring
Material
PVC Part Number
1,2,3
Pressure
Rating
Socket SR Threaded Flanged Soc Union SR Thd Union
1/2
EPDM
1622-005 1621-005SR 1623-005 162A-005 162B-005SR
150 psi
Non-Shock
Water
@ 73°F
FKM
1632-005 1631-005SR 1633-005 163A-005 163B-005SR
3/4
EPDM
1622-007 1621-007SR 1623-007 162A-007 162B-007SR
FKM
1632-007 1631-007SR 1633-007 163A-007 163B-007SR
1
EPDM
1622-010 1621-010SR 1623-010 162A-010 162B-010SR
FKM
1632-010 1631-010SR 1633-010 163A-010 163B-010SR
1-1/4
EPDM
1622-012 1621-012SR 1623-012 162A-012 162B-012SR
FKM
1632-012 1631-012SR 1633-012 163A-012 163B-012SR
1-1/2
EPDM
1622-015 1621-015SR 1623-015 162A-015 162B-015SR
FKM
1632-015 1631-015SR 1633-015 163A-015 163B-015SR
2
EPDM
1622-020 1621-020SR 1623-020 162A-020 162B-020SR
FKM
1632-020 1631-020SR 1633-020 163A-020 163B-020SR
3
EPDM
1622-030 1621-030SR 1623-030 162A-030 162B-030SR
90 psi
Non-Shock
Water
@ 73°F
FKM
1632-030 1631-030SR 1633-030 163A-030 163B-030SR
4
EPDM
1622-040 1621-040SR 1623-040 162A-040 162B-040SR
FKM
1632-040 1631-040SR 1633-040 163A-040 163B-040SR
Replacement Parts (next page)
NO. COMPONENT OTY. MATERIAL
1 Body
1
(SOC/SR/FLG/UNION)
1 PVC/CLEAR/CPVC
2 Seat 1 EPDM/FKM
3 Compressor Assembly
2
1 PVC/CPVC
4 Bonnet O-ring 1 EPDM/FKM
5 Bonnet Nut 1 PVC/CPVC
6 Bonnet 1 PVC/CPVC
7 Retaining Clip 1 PP
8 Plug O-ring 1 EPDM/FKM
9 Plug 1 PVC/CPVC
10 Union O-ring 2 EPDM/FKM
11 Union Socket End 2 PVC/CPVC
12 Union SR Threaded End 2 PVC/CPVC
1 - Body Includes: Body (1), Spigot Adapters (2), SS Collars (2)
- Flange Body Includes: Body (1), Spigot Hubs (2), Flange Rings (2)
- Union Body Includes: Body (1), Spigot Ends (2), Nuts (2)
2 - Compressor Assembly Includes: Compressor (1), Weight (1),
Compressor Plug (1)
Size Values
1/2 6.7
3/4 12.6
122.9
1-1/4 33.8
1-1/2 50.7
2 79.2
3 235
4 387
C
v
Values
Temperature Pressure Rating
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" - 2"
PVC
150
(1.03)
135
(.93)
110
(.76)
75
(.52)
50
(.34)
-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-
3" - 4"
PVC
90
(.70)
85
(.62)
75
(.52)
60
(.41)
40
(.30)
-0- -0- -0- -0- -0- -0- -0-
CPVC
90
(.70)
85
(.62)
80
(.55)
75
(.52)
70
(.48)
60
(.41)
50
(.34)
45
(.31)
40
(.30)
35
(.24)
30
(.21)
-0-