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Thermoplastic Valves Product Guide & Engineering Specifictions
Gate Valves
Page 771 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, CPVC
This solid, proven design is well suited for a variety of chemical, industrial and irrigation applications. Spears
®
Gate Valves
are feature-packed with a variety of end connector options. Individual special features are found in each size range 1/2"
through 2", 2-1/2" & 3", and in the full featured Heavy Industrial 4" valve. See Spears
®
Plug Gate Valves for 6" size.
• Heavy Bodied PVC & CPVC Construction
• Tapered Wedge with Specially Designed Sealing
Surface
• Non-Rising Stem Design
• Patented Strain-Equalizing Stem/Wedge Thread
• O-ring Stem Seals Instead of Packing - No Retightening
Required
• Buna-N, EPDM, or FKM O-ring Seals
1/2" - 2" PVC & CPVC Heavy
Duty Gate Valves
• Available with socket, threaded or
flanged end connectors.
• Pressure rated to 200 psi @ 73°F.
Flanged Valve Pressure Rated to
150 psi @ 73°F
4" PVC & CPVC
Heavy Industrial Gate Valves
• Available with socket, SR Threaded
(Special Reinforced) threaded or
flanged end connectors.
• Pressure rated to 235 psi @ 73°F.
Flanged Valve Pressure Rated to 150
psi @ 73°F
• SS 316 Exterior Bonnet & Hardware
• Built-in Quick-View Position Indicator
• Optional 2" Square/T-Style Operator
Nut available.
Sample Engineering Specification
All thermoplastic Gate Valves shall be constructed from PVC Type I Cell Classification 12454 or CPVC Type IV Cell
Classification 23447. All O-rings shall be Buna-N, EPDM or FKM. All EPDM valves shall be NSF
®
certified for potable
water use. All valves shall have non-rising stem and Polypropylene handwheel. All valve gate wedges shall have Strain-
Equalizing threads. PVC valves shall have Polypropylene wedge and CPVC valves shall have CPVC wedge. All valve
components shall be replaceable. All 1/2" through 2" valves shall be pressure rated at 200 psi, all 2-1/2" through 3" and all
flanged valves shall be pressure rated at 150 psi, and all 4" valves shall be pressure rated at 235 psi for water at 73°F, as
manufactured by Spears
®
Manufacturing Company.
• Positive Grip, High Impact Polypropylene Handwheel
Operator
• Fully Serviceable, Replaceable Components - Accessible
Without Valve Removal
• EPDM Gate Valves NSF
®
Certified for Potable Water use
• Suitable for Vacuum Service
• Assembled with Silicone-Free, Water Soluble Lubricants
• Metric Socket and BSP Thread Available, 1/2" - 2"
2-1/2" & 3" PVC & CPVC
Heavy Duty Gate Valves
• Available with socket, SR Threaded
(Special Reinforced) threaded or
flanged end connectors.
• Pressure rated to 150 psi @ 73°F.
• Optional 2" Square/T-Style
Operator Nut available.
Note: 2-1/2" size is a bushed down 3" valve.