Multiquip 1808000130 Casing Volute QP-204 - OEM Replacement Part

The casing volute is a critical component of centrifugal pump operation, housing the impeller and converting the rotational energy of the impeller into water pressure for discharge. This genuine Multiquip casing volute is specifically designed for the QP-204 pump series, maintaining the proper internal geometry required for optimal self-priming performance and discharge rates up to 158 gallons per minute.

In the QP2B centrifugal pump, the volute casing must be filled with water before operation to enable the self-priming process. The casing design creates the reduced internal air pressure that allows water to flow continuously through the suction line while the impeller's centrifugal force expels water through the discharge ports. Damage to the volute casing—whether from impact, cracking, or wear—can compromise the pump's ability to maintain its maximum suction lift of 25 feet and maximum head of 115 feet, making replacement essential for restoring full pumping capacity.

This part is compatible with the following Multiquip models:

• QP2B
• QP2H

Genuine Multiquip OEM part, sold by an authorized dealer.