U.S. Seal MFG. PS-767 Mechanical Pump Seal 3/4 In

Description:

The U.S. Seal MFG. PS-767 Pump Seal is a mechanical shaft seal designed to prevent fluid leakage in centrifugal pumps and other rotating fluid-handling equipment while maintaining reliable sealing performance under continuous operation. Commonly installed in industrial pumps, water treatment systems, HVAC circulation pumps, chemical processing equipment, and OEM fluid handling systems requiring a 3/4-inch shaft seal. Maintenance technicians, pump rebuilders, and system integrators use this pump seal for equipment repair, preventive maintenance, and replacement of worn OEM mechanical seals to restore efficient, leak-free pump operation. The PS-767 features a Type C seal head, Type 3 seat, and Buna-N elastomer for dependable general-purpose industrial service.

Applications:

The U.S. Seal MFG. PS-767 Pump Seal is commonly used in centrifugal pumps, hydraulic pumps, rotary pumps, turbine pumps, compressors, mixers, blenders, chillers, and general industrial fluid handling systems. Its Buna-N elastomer provides reliable sealing performance for water, light oils, and compatible industrial fluids while reducing leakage, protecting bearings, and extending pump service life.

Technical Specifications:

• Brand: U.S. Seal MFG.
• Model: PS-767
• Product Type: Mechanical Pump Seal
• Shaft Size: 3/4 in. (0.750 in.)
• Head Type: C
• Seat Type: 3
• Seat Outside Diameter: 1.375 in.
• Elastomer Material: Buna-N (Nitrile)
• Seat Material: Ceramic
• Primary Ring Material: Carbon
• Spring Material: Stainless Steel
• Metal Parts Material: Stainless Steel
• Maximum Pressure: 200 PSI
• Operating Temperature Range: -40°F to 225°F
• Application: Centrifugal Pumps and Industrial Fluid Handling Equipment

Common Replacements:

• John Crane Type 21 Mechanical Seal, 3/4 in. Shaft
• Flowserve Type 21 Equivalent Mechanical Pump Seal
• U.S. Seal MFG. PS-767V Viton Pump Seal