U.S. Seal Mfg. PS-309 Viton Seal Replacement Kit

Description:

The U.S. Seal MFG. PS-309 Viton Seal Replacement Kit is a mechanical pump seal repair kit designed to restore the sealing performance of centrifugal pumps and other rotating fluid-handling equipment. Commonly installed in industrial pumps, chemical processing systems, HVAC circulation pumps, water treatment equipment, and OEM fluid handling systems requiring a 7/8-inch shaft mechanical seal. Maintenance technicians, pump rebuilders, and system integrators use this seal kit for preventive maintenance, pump overhaul, and replacement of worn sealing components to minimize leakage and extend pump service life. This listing is identified as an incomplete kit. The PS-309 is a Type C (John Crane Type 21 equivalent) mechanical seal with Viton elastomers for enhanced chemical and temperature resistance.

Applications:

The U.S. Seal MFG. PS-309 Viton Seal Replacement Kit is commonly used in centrifugal pumps, industrial water pumps, chemical transfer pumps, HVAC circulation systems, cooling equipment, irrigation pumps, and general fluid handling applications. The Viton seal material provides excellent resistance to heat, oils, fuels, and a wide range of industrial chemicals, making it suitable for demanding industrial environments. This replacement kit helps restore pump efficiency, reduce leakage, and extend equipment service life.

Technical Specifications:

• Brand: U.S. Seal MFG.
• Model: PS-309 (PS309)
• Product Type: Mechanical Pump Seal Replacement Kit
• Condition: Incomplete Kit
• Shaft Size: 7/8 in. (0.875 in.)
• Head Type: Type C (John Crane Type 21 Equivalent)
• Seat Type: Type 1 Cup Mounted
• Seat Outside Diameter: 1.500 in.
• Rotary Outside Diameter: 1.315 in.
• Working Length: 0.937 in.
• Elastomer Material: Viton (FKM)
• Face Material: Carbon/Ceramic
• Metal Components: Stainless Steel
• Maximum Pressure: 200 PSI
• Maximum Temperature: 225°F
• Application: Centrifugal Pumps and Industrial Fluid Handling Equipment

Common Replacements:

• John Crane Type 21 Mechanical Seal (7/8 in.)
• U.S. Seal MFG. PSR-309 Pump Seal
• Vulcan Engineering 309C Mechanical Seal