1-1/2 In PVC Full-Flow Check Valve With Slip Unions For Sump Pump Discharge Backflow Prevention And Water Hammer Reduction 50 PSI Rated Easy Install Solvent-Weld Union Non-Clog Design Delivers Quick Flow And Keeps Your Sump Pump Running Smooth

1-1/2 in (38.1 mm) PVC check valve with slip unions
✔️ 50 PSI rated, quick-install slip-union design for sump discharge

This valve is designed for sump pump discharge lines and is commonly used in basements, crawl spaces, or exterior discharge runs to prevent backflow and reduce water hammer.

✅ 1-1/2 in PVC body check valve with slip unions
✅ Full-flow non-clog design for minimal discharge resistance
✅ Spring-loaded flapper with 1/2 lb spring for rapid sealing to prevent backflow and reduce water hammer
✅ Rated for 50 PSI (115 ft of head) in vertical or horizontal installation
✅ Solvent-weld ends with unions to splice into existing PVC discharge line without threading or pipe cutting
✅ White color

💡 What is a PVC check valve used for in sump pump discharge lines?

This handy valve helps prevent backflow and reduces water hammer in typical basement sump pump setups.

- Prevents backflow in discharge lines for sump pumps
- Reduces water hammer by shutting quickly with a spring-loaded flap
- Works with slip unions to simplify replacing or upgrading in existing PVC runs
- Rated for up to 50 PSI in typical home drainage applications