Sump Pump Check Valves | McMaster-Carr

	Pipe Size Pipe Size

1 1/4

1 1/2

	Mounting Orientation Mounting Orientation

Horizontal

Vertical

	Color Color

	Black
	Green

	End-to-End Length End-to-End Length

4 13/16"

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

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2 Products

Backflow-Prevention Valves with Clamps for Sump Pumps

Prevent dirty water from flowing back to your pump. Valves have flexible couplers with hose clamps to slip over PVC tubing for easy installation. At least 2 psi is required to open valves. Install for horizontal or upward flow.

For technical drawings and 3-D models, click on a part number.

Pipe Size	Max. Pressure	Max. Flow Rate @ 10 Ft. of Head, gpm	Temp. Range, °F	Body Material	Color	Seal Material	End-to-End Lg.		Each
1 1/2, 1 1/4	25 psi @ 70 ° F	4.3	35° to 130°	ABS Plastic	Black	EPDM Rubber/Stainless Steel	4 13/16"	0000000	000000
2	25 psi @ 70 ° F	4.3	35° to 130°	ABS Plastic	Green	EPDM Rubber/Stainless Steel	6"	0000000	00000