Onyx Valve Company products

The series DBF rubber check valve effectively ensures mono-directional flow of slurries, sewerage, sludge and other hard to handle fluids. The valve consists of an elastomer duckbill with a flanged connection. The back up flange is galvanized carbon steel, with 304 or 316 stainless steel as options. This simple rugged design eliminates the mechanical parts which can wear and jam in conventional check valves. They are available in a variety of elastomers.

The series DBS rubber check valve effectively ensures mono-directional flow of slurries, sewerage, sludge and other hard to handle fluids. The valve consists of an elastomer duckbill with a slip-on connection. This simple rugged design eliminates the mechanical parts which can wear and jam in conventional check valves.

The series DBCP in-line check valve is a simple, reliable, cost effective method of backflow prevention. The series DBCP check valve is designed to be installed between two mating flanges. The simple maintenance-free elastomer with a flanged connection eliminates the mechanical parts which can wear and jam in conventional check valves. For installation at the end of pipe line, the valve can be ordered with optional back up flanges.

The series DBMJ check valve effectively ensures mono-directional flow of slurries, sewerage, sludge and other hard to handle fluids. The valve consists of an elastomer duckbill type check valve inside an iron housing. This simple rugged design eliminates the mechanical parts which can wear and jam in conventional check valves. They are available in a variety of elastomer compounds, with a grey iron housing.

The Wafer-style series WCV Check valve is an entirely new valve design specifically engineered for water application. The WCV Check valve operates solely on line pressure and back pressure to open and close, no outside energy source is required. As line pressure builds, the elastomeric flapper disc is pushed away, allowing the water to pass. The memory of the rubber will cause the flapper disc to return flat, and back pressure will seal the flapper against the plate to prevent backflow. The WCV Check valve is designed to be inserted between two mating flanges.

Pre-pinched Port. Mechanically Pinched. Single Pinch Mechanism. Simple Economical Design. Low pressure drop. No packing. Drop tight closure. On/Off or throttling service. Linear throttling characteristic. Fail Open or Fail Closed pneumatic actuators. Long lasting compression molded sleeve.

Full Round Port. Mechanically Pinched. Single Pinch Mechanism. Simple Economical Design. Clog resistant full round opening. Low pressure drop. No packing. Drop tight closure. On/Off or throttling service. Fail Open or Fail Closed pneumatic actuators. Long lasting compression molded sleeve.

Pre-pinched Port. Mechanically Pinched. Single Pinch Mechanism. Simple Economical Design. Clog resistant full round opening. Low pressure drop. No packing. Drop tight closure. On/Off or throttling service. Long lasting compression molded sleeve. High efficiency stainless steel ACME stem for easy operation. Complete motorized actuator includes starters, power supply, limit switches, auxiliary Hand wheel, push buttons and selector switch. Valves come fully assembled, calibrated and tested for plug & play operation.

Full Round Port. Mechanically Pinched. Single Pinch Mechanism. Simple Economical Design. Clog resistant full round opening. Low pressure drop. No packing. Drop tight closure. On/Off or throttling service. Long lasting compression molded sleeve. High efficiency stainless steel ACME stem for easy operation. Complete motorized actuator includes starters, power supply, limit switches, auxiliary Hand wheel, push buttons and selector switch. Valves come fully assembled, calibrated and tested for plug & play operation.

Full Round, Dual Pinch, Open Frame Construction, Hand Wheel Operated. Clog resistant full round opening. Valve can pass particles equal to line size. Light weight. Low pressure drop. Drop tight closure. On/Off or throttling service.