Check Valve

A sump pump check valve is an essential component installed on the discharge line to prevent water from flowing back into the sump basin after the pump shuts off. This one-way valve stops reverse flow, reduces pump cycling, protects the motor from unnecessary wear, and improves overall system efficiency. Ideal for residential, commercial, and light-industrial sump pump installations using 1¼" or 1½" discharge piping.

• One-Way Flow Control: Prevents discharged water from returning to the sump pit.
• Extends Pump Life: Minimizes short-cycling and reduces strain on the sump pump motor.
• Leak-Proof Sealing: Built with high-quality rubber gaskets/seals for a tight, reliable connection.
• Durable Construction: Available in heavy-duty PVC or ABS for corrosion resistance.
• Quiet Operation: Designed to minimize noise and water hammer during pump shut-off.
• Easy Installation: Fits standard 1¼" and 1½" sump pump discharge pipes.
• Maintenance-Free Design: Simple, long-lasting internal mechanism with no complicated parts.

Ideal for use in-

• Residential basement sump pump systems
• Crawl space drainage pump setups
• Commercial/industrial dewatering pits
• Stormwater and groundwater removal systems
• Sewage pump and effluent pump discharge lines (when appropriate valve type is selected)
• Any system requiring prevention of reverse water flow in vertical discharge piping

• Valve Type: One-way check valve with flapper-style mechanism
• Body Material: Black thermoplastic/PVC
• Connector Material: Flexible rubber sleeves (top & bottom)
• Clamp Material: 4 × stainless steel hose clamps
• Connection Size:
  Fits 1¼″ discharge pipe
  Fits 1½″ discharge pipe
• Installation: Vertical, with flow arrow pointing upward
• Color: Black body, silver clamps
• Application: Cold-water sump pump discharge lines