Rw Beckett cu7 Check Valve 3/8 Inch Tube Brass

Product Description

The RW BECKETT cu7 is a brass check valve with a 3/8-inch nominal tube connection designed for oil burner and fuel supply applications. Check valves in this service class prevent backflow in fuel lines, protecting pump components and maintaining prime in the supply system. The brass body provides corrosion resistance suitable for fuel oil service. This valve is installed by licensed oil burner technicians and plumbers working on fuel delivery systems where one-directional flow control is required.

The cu7 is sized for 3/8-inch tube connections, making it a standard fit for residential and light commercial oil burner fuel supply lines. It is typically installed in the suction or return side of a fuel oil system to maintain line pressure and prevent siphoning or backflow when the burner is off. The tube connection style allows direct integration with copper tubing commonly used in oil fuel systems.

Key Features

• Brass body construction for corrosion resistance in fuel oil service
• 3/8-inch nominal tube connection for direct copper tubing integration
• One-directional flow control prevents backflow in fuel supply lines
• Compact design suited for tight equipment-room installations

Compatibility

Designed as an OEM-style replacement check valve for 3/8-inch tube connection fuel supply systems, consistent with RW BECKETT oil burner installation requirements.

Installation Notes

Installation should be performed by a licensed oil burner technician or plumber in accordance with applicable local and NFPA 31 fuel oil piping codes. Shut off the fuel supply and depressurize the line before removing or installing any check valve. Verify flow direction arrow on the valve body before final installation. Do not overtighten tube fittings, as brass fittings can crack under excessive force.

Technical Specifications

• Body Material: Brass
• Connection Type: Tube
• Nominal Size: 3/8 inches

Standard Information

• Brand: RW BECKETT
• Manufacturer Part Number: cu7