Valves & Actuation

Series RVT is an angle pattern design featuring a non-sticking Teflon® shaft passing through three U-cup seals. Venting between the upper and center U-cups results in Plast-O-Matic’s patented Fail-Dry® design for added protection. In the meantime the third seal continues to protect the control spring. The RVT design starts with 1/2" pipe size and runs through 2". Set pressures from 5 to 100 PSI. Once the relief valve is set, the valve will remain closed as long as the tank or line pressure does not reach the set pressure. The valve will begin to relieve when the set pressure is reached and will require an overpressure of approximately 40% to fully open. When the pressure falls below the set pressure, the valve will again close. Series RVT relief valves are constructed of Type 1, Grade 1 PVC, CPVC, Polypropylene, Teflon® or PVDF with solid Teflon® shaft. U-cup seals are EPDM or Viton®. The adjusting bolt, lock nut, control spring and fasteners are cadmium-plated steel. Stainless steel is available as an option.

This solid, proven design is well suited for a variety of chemical, industrial and irrigation applications. Spears Gate Valves are feature-packed with multiple end connector options. Individual special features are found in each size range 1/2” through 2”, 2-1/2” and 3”, and in the full-featured Heavy Industrial 4” valve. Spears computer-engineered, heavy-bodied PVC or CPVC construction adds extra strength with superior chemical and corrosion resistance. 1/2” through 2” sizes are rated for 200 psi @ 73°F, 2-1/2” and 3” sizes are rated for 150 psi @ 73°F and 4” heavy-duty industrial gate valve is rated for 235 psi @ 73°F.

Features
• NSF approved for potable water service   • Suitable for vacuum service   • Rugged PVC or CPVC construction   • Available with either EPDM or Viton® seals   • Available with either socket or threaded ends          • Non-rising stem - reduces clearance issues   • 2-1/2” through 4” sizes available with flanged end connectors

This versatile, quarter-turn shut-off valve is ideally suited for a variety of laboratory, system monitoring and OEM applications. Available in IPS sizes 1/4” and 3/8” with choice of socket or threaded end connectors. Optional 1/4” valve & adapter kit provides multiple combinations of tubing and male pipe thread connections. Chemical and corrosion-resistant PVC or CPVC valves will never rust, scale or pit, providing exceptional corrosion resistance. Heat resistant CPVC allows higher temperature applications. All valves are assembled with a water soluble, silicone-free lubricant, for critical applications. Valves with socket end are available on request. Full 150 psi Maximum Internal Pressure at 73°F for the most demanding applications.