Us Seal PS-1002V Mechanical Pump Seal 0.500 in Type C

Product Description

The US SEAL PS-1002V is a mechanical pump seal engineered for centrifugal pump applications in HVAC, plumbing, and pool circulation systems. It measures 0.500 inches in size and features a Type C configuration equal to the John Crane Type 21 design, making it a direct-fit replacement for a wide range of compatible pump models. The seal assembly uses a carbon primary ring, ceramic stationary mating ring, Viton elastomer secondary seals, and stainless steel metal parts and springs. This combination of materials provides solid chemical resistance and durability across residential and light commercial pump service. Licensed plumbers, HVAC technicians, and pool service professionals are the primary installers.

This seal is suited for residential and commercial pump installations where a 0.500-inch shaft size and cup-mounted mating ring configuration are required. The 1-inch bore cup-mounted mating ring seats into the pump volute, allowing straightforward replacement during routine pump service or after seal failure. It is commonly installed in pool and spa circulation pumps, hydronic system pumps, and domestic water booster pumps. The Type C, John Crane Type 21 equivalent design is widely used across multiple pump brands and model families. Refer to the manufacturer compatibility documentation for a full list of OEM pump applications.

Key Features

• Type C design equal to John Crane Type 21 for broad cross-reference compatibility
• Carbon primary rotary ring for wear resistance and reliable sealing surface
• Ceramic stationary mating ring for hardness and corrosion resistance
• Viton secondary seals for resistance to heat and a range of chemicals
• Stainless steel metal parts and springs resist corrosion in wet pump environments
• 1-inch bore cup-mounted mating ring for straightforward installation

Compatibility

Designed as an OEM-style replacement mechanical seal for centrifugal pumps requiring a 0.500-inch shaft seal with a Type C, John Crane Type 21 equivalent configuration. Consult the manufacturer compatibility documentation for a full list of supported OEM pump models.

Installation Notes

Installation should be performed by a licensed plumber, HVAC technician, or qualified pool service professional. Shut off power to the pump motor and close isolation valves to depressurize the system before beginning seal replacement. Inspect the shaft and seal seat for scoring or debris before seating the new seal, and avoid touching the lapped sealing faces during installation. Follow applicable plumbing codes and pump manufacturer service procedures throughout the repair.