Multiquip 1391000130 Volute Casing QP-303 - OEM Replacement Part

The volute casing is the critical housing component that surrounds the impeller in your centrifugal pump, converting the impeller's rotational energy into fluid pressure and directing water flow from the suction port through to the discharge outlet. This genuine Multiquip volute casing is engineered specifically for the QP303B self-priming centrifugal pump, which handles clear-water applications at discharge rates up to 267 gallons per minute through its three-inch ports. The volute casing works in conjunction with the impeller to create the partial vacuum required for self-priming operation, making proper casing integrity essential for maintaining suction lift capability—particularly critical since these pumps lose approximately one foot of priming ability for every 1,000 feet of elevation above sea level. Cracks, corrosion, or wear in the volute casing will compromise pump performance, reduce priming efficiency, and can lead to complete loss of suction in dewatering applications for basements, swimming pools, and other residential or light industrial uses.

Compatible with:

• Multiquip QP303B

Genuine Multiquip OEM part, sold by an authorized dealer.