Zoeller 30-0181 Check Valve 1-1/2 in.

Features

• 1-1/2" slip x slip unions
• Flapper bends over a radius to eliminate sharp 90-degree edges - lengthens life of flapper hinge
• Vertical or horizontal installation
• Slip x slip for 4.3 PSI (10 feet of head) at 130°F. Avoid more than 10 ft. static head above the check valve.
• Designed to reduce water hammer