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Check Valves
Check Valves

Check Valves are valves that allow pressure to flow one direction and close if the direction of flow reverses. They can be used for a variety of fluid application suc as liquids, gases, condensate or slurries. Total Valve Systems has a comprehensive offering in the different styles of check valves offered.


Cast Steel

For years, DSI® Cast Steel Valves have been satisfying the needs of Petroleum Refineries, Chemical Processing Plants, Power Generating Plants, and and other processing facilities throughout the world.

Forged Steel

All DSI® forged carbon steel valves maintain a .22% maximum carbon content and are normalized to further refine the grain and homogenize the microstructure.

Pressure Seal

DSI® Pressure Seal valves are designed for high pressure, high temperature applications such as Steam-Generation Stations, Industrial/Chemical Processing Plants, Thermal Power Generating Plants and other processing facilities throughout the world.

Stainless Steel

Stainless steel NEWCO gate, globe, and check valves offer a complete collection in all grades of stainless steel.


Cast-steel NEWCO gate, globe, and check valves exceed all industry performance requirements.


Pressure-seal NEWCO valves are ideal for standard and critical power-industry applications.


The forged-steel NEWCO gate, globe, and check valves are ideal for downstream applications and critical power-industry applications.

Wheatley Series 822

The WHEATLEY Series 822 check valve is designed to safely prevent backflow of liquid or gas in pipeline applications.

Wheatley Series 500

WHEATLEY Series 500 check valves are fire-tested carbon steel flanged end check valves with a full-open, through-conduit design for low pressure drop and less turbulence.

Wheatley Piston-Style

The valve's top-entry design allows for easy access and replacement of all valve internal parts with reduced downtime.

Wheatley Swing-Style

The swing-style TOM WHEATLEY check valve is used in critical service applications worldwide.

Wheatley Short-Pattern Wafer

The WHEATLEY short-pattern wafer check valve is a lightweight, compact design ideal for backflow prevention in gas and liquid applications.

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