Valves & Actuation
![Spears Ball Check Valves: CPVC Screen Assembly](/sites/default/files/styles/list/public/images/product/92ebda45e6d6fd3e0b9054b4784e/Spears%20Screen%20Assembly_0.jpg?itok=uDJioMA6)
![Spears Ball Check Valves: PVC Screen Assembly](/sites/default/files/styles/list/public/images/product/default/PVC_Foot_Screen.jpg?itok=ohogdaHo)
![Butterfly Check Valves: Automatic - PVC \ EPDM](/sites/default/files/styles/list/public/images/product/2306b974194e309685e6bdf94aca/Spears%20Butterfly%20check%20flange.jpg?itok=7iaCPfPP)
Design Features
This multi-purpose check valve provides an extremely low profile and very quick response to back flow without slamming. The special design requires no more space then a piece of pipe, and incorporates a flexible elastomer seal for long life, and is suitable for mounting in any position for greater versatility.
Technical Information
2" through 8" sizes are rated for 150 psi @ 73°F, 10" and 12" sizes are rated for 100 psi @ 73°F. As a general guideline, opening and closing pressures will range from .2 to .5 psi for horizontal applications. Opening pressures tend to decrease in large size valves. Valves installed in vertical up-flow applications will require slightly higher pressures.
Features
• PVC or CPVC construction - no metal components • Quick response shut-off in any position • Field replaceable Flex-Seal - EPDM or Viton®
• Assembled with silicon-free, water soluble lubricants • Available with either spigot, flanged, grooved pipe or male threaded ends
• Sizes now available to 24" pipe size - call for information
![Spears Clear PVC Y-Pattern Valve: Manually Actuated - PVC \ EPDM](/sites/default/files/styles/list/public/images/product/1dfaa86b509258710facaa9a9926/Y-Pattern%20Gate%20Valve.jpg?itok=UesSMaWi)
The Y-Pattern valve is a closing-down, globe type valve design that provides proportional opening to seating disk travel. As such, Y-pattern valves are ideally suited for flow regulating applications. The Y-pattern configuration reduces pressure loss over that of a standard globe valve. Available in IPS sizes 1/2” - 4” with socket, SR thread, flanged or socket union ends.
• Multiple turn, open and close ensures fine adjustment • Good throttling and control characteristics • Standard O-ring seal seating disk and seals • IPS connections - 1/2" through 4" sizes • EPDM or FKM seals available
![Spears Compact Series: Manually Actuated](/sites/default/files/styles/list/public/images/product/21c9855bf8827e92ce8b9c846fc2/2122.jpg?itok=HyQY9dl9)
This heavy-bodied, quarter-turn shut-off valve is popular where maintenance-free installations are desired for a variety of chemical, industrial and OEM applications. Factory adjusted sealed units are available in IPS sizes 1/2" through 6", with choice of either socket or threaded end connectors. Spears PTFE floating seat design reduces seat wear for extended valve life, smooth operation, bubble-tight shutoff. 100% factory tested. Safe-T-Shear® Stem to help prevent leaks out in the event of stem damage. 235 psi @ 73°F (for complete size range).