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White PVC ball check valve with solvent-weld ends

Legend Valve

Legend Valve 201-278 2" T-655 PVC Ball Check Valve

SKU CH-B1S1-NXBPZ

A 2-inch PVC ball check valve that prevents backflow in plumbing systems

  • 2-inch PVC ball check valve prevents backflow in plumbing systems
  • T-655 design ensures reliable one-way flow control
  • Legend Valve 201-278 model built for durable performance
  • PVC construction resists corrosion in water applications
  • California Proposition 65 warning indicates chemical content awareness

2" T-655 PVC Ball Check Valve

This 2-inch T-655 PVC ball check valve controls flow direction in plumbing systems. It is designed for residential and light commercial installations where backflow prevention is required. The valve suits installers who need a reliable polymer check valve for water or compatible fluid lines. Buyers who need metal-bodied valves or larger diameters should look elsewhere.

Installation and common issues

The valve connects to 2-inch PVC piping using solvent cement or threaded adapters matched to the schedule rating. Ensure the arrow on the body points in the direction of flow before cementing joints. A frequent error is mounting the valve upside down, which prevents the ball from seating and allows backflow. Debris in the line can also stop the ball from closing fully, so flush the system before final assembly.

Compatibility checks before ordering

Verify that your piping is 2-inch nominal PVC and that the system pressure and temperature fall within the valve's rated limits. Confirm the fluid is chemically compatible with PVC and the ball-seat materials. Check local codes for any requirement on check-valve type or installation orientation. Systems needing a different connection style or pressure class will require another valve.

Highlights

  • 2-inch PVC ball check valve prevents backflow in plumbing systems
  • T-655 design ensures reliable one-way flow control
  • Legend Valve 201-278 model built for durable performance
  • PVC construction resists corrosion in water applications
  • California Proposition 65 warning indicates chemical content awareness

Specifications

BrandLEGEND VALVE

Questions about this item

How can I confirm the 2" T-655 PVC ball check valve is working correctly after installation?

Observe flow in the marked direction; the ball should lift freely when fluid moves forward and seat tightly to stop backflow without leakage.

What comes with the 201-278 valve and what must I supply separately?

The valve body is supplied; you must provide 2" pipe, solvent cement, primer and any required fittings for the connection.

Which version of the 201-278 should I choose for a 2" PVC line?

The 2" T-655 model is the only version listed for two-inch PVC systems.

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