Brochure
Thermoplastic Valves Product Guide & Engineering Specifictions
Y-Pattern Valves
Page 777 Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gas Spears
®
Manufacturing Company
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Sample Engineering Specification
All thermoplastic valves shall be Y-Pattern configuration
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 valves shall have high impact polypropylene
handles. 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.
Valve
Size
O-ring
Material
PVC Material
1,2,3
Pressure
Rating
Socket SR Threaded Flanged
Socket
Union
SR Threaded
Union
1/2
EPDM 1722-005 1721-005SR 1723-005 172A-005 172B-005SR
150 psi
Non-Shock
Water
@73°F
FKM 1732-005 1731-005SR 1733-005 173A-005 173B-005SR
3/4
EPDM 1722-007 1721-007SR 1723-007 172A-007 172B-007SR
FKM
1732-007 1731-007SR 1733-007 173A-007 173B-007SR
1
EPDM 1722-010 1721-010SR 1723-010 172A-010 172B-010SR
FKM 1732-010 1731-010SR 1733-010 173A-010 173B-010SR
1-1/4
EPDM 1722-012 1721-012SR 1723-012 172A-012 172B-012SR
FKM 1732-012 1731-012SR 1733-012 173A-012 173B-012SR
1-1/2
EPDM 1722-015 1721-015SR 1723-015 172A-015 172B-015SR
FKM 1732-015 1731-015SR 1733-015 173A-015 173B-015SR
2
EPDM 1722-020 1721-020SR 1723-020 172A-020 172B-020SR
FKM 1732-020 1731-020SR 1733-020 173A-020 173B-020SR
3
EPDM 1722-030 1721-030SR 1723-030 172A-030 172B-030SR
90 psi
Non-Shock
Water
@73°F
FKM 1732-030 1731-030SR 1733-030 173A-030 173B-030SR
4
EPDM 1722-040 1721-040SR 1723-040 172A-040 172B-040SR
FKM 1732-040 1731-040SR 1733-040 173A-040 173B-040SR
Features - PVC Gray, PVC Clear & CPVC
The Y-Pattern valve is a closing-down, globe type valve design
that provides proportional opening to seating disc travel. As
such, Y-Pattern valves are ideally suited for flow regulating
applications. The Y-pattern configuration reduces pressure
loss over that of standard globe valves. Available in IPS Sizes
1/2"- 4" with socket, SR threaded, flanged, socket union or S
R
threaded union end connectors.
•
Chemical & Corrosion Resistant PVC Gray, PVC Clear
or CPVC Construction
• Buttress Thread Bonnet
• Fully Serviceable, Replaceable Components
• Standard O-ring Seal Seating Disc & Seals
• EPDM or FKM O-rings
• High Impact Polypropylene Handle
• Assembled with Silicone-Free, Water Soluble
Lubricants
• Sizes 1/2" - 2" Pressure Rated to 150 psi @ 73°F,
Sizes 3" - 4" Pressure Rated to 90 psi @ 73°F
Quick-View Valve Selection Chart
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-
1: For CPVC Y-Pattern, add the letter “C” to the part number (e.g. 1722-005C)
2: For PVC Clear Y-Pattern, add the letters “CL” to the part number (e.g. 1722-005CL) or (e.g. 172A-005CL)
3: For CPVC or Clear Special Reinforced Y-Pattern, (e.g. 1721-005CSR) or (e.g.1721-005CLSR)
Replacement Parts
NO. COMPONENT QTY. MATERIAL
1 Body
1
(SOC/SR/FLG/UNION)
1 PVC/CLEAR/CPVC
2 Stem Assembly 1 PVC/CPVC;EPDM/FKM
3 Seal Carrier O-ring 1 EPDM/FKM
4 Bonnet Nut 1 PVC/CPVC
5 Bonnet 1 PVC/CPVC
6 Handwheel 1 PP
7 Stem Nut 1 PVC
8 Union O-ring 2 EPDM/FKM
9 Union Socket End 2 PVC/CPVC
10 Union SR Thread End 2 PVC/CPVC
1 - SR-Fipt 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 - Stem Assembly Includes: Stem (1), Seat Retainer (1), Seat Plate (1),
Seat (1), Seal Carrier (1), Retainer Plate (1) (Except 4"), Stem O-ring (1)
Size Values
1/2 6.7
3/4 12.6
1 22.9
1-1/4 33.8
1-1/2 50.7
2 79.2
3 235
4 387
C
v
Values