Us Seal PS-687 PS Pump Seal 0.875 inches REPLACES Pentair Sta-Rite U9-18

Product Description

The US SEAL PS-687 is a PS Pump Seal with a size of 0.875". This mechanical seal is a Type C- Equal to John Crane Type 21, and replaces Pentair Sta-Rite Pump Seal U9-18. It features a 1.5" Bore Cup Mounted Mating Ring and is made in the United States. Common applications include rotary and turbine pumps, compressors, mixers, blenders and chillers.

• PS Pump Seal
• Size: 0.875"
• Type C- Equal to John Crane Type 21

Product Highlights

The PS-687 is a mechanical seal with a 0.875" size, designed for various applications including pumps, compressors, mixers, blenders and chillers.

Product Information

Standard Information

• Brand: US SEAL
• Manufacturer Part Number: PS-687
• Country of Origin: US

Technical Specifications

• Elastomer: Buna
• Head / Fittings: Type C- Equal to John Crane Type 21
• Metal Parts: Stainless Steel
• Other Factors: 1.5" Bore Cup Mounted Mating Ring
• Part Type: Mechanical Seal
• Quick Specs: PS Pump Seal
• Rotary: Carbon
• Seal Code: BCFKF
• Size: 0.875"
• Spring: Stainless Steel
• Stationary: Ni-Resist
• Shaft Size: 0.875" (7/8")
• Rotary Head Type: US Seal Type C (John Crane Type 21)
• Rotary Head Material: SS/Carbon/Buna
• Rotary Head Dimensions: 1.312" OD, 0.937" Operating Height
• Stationary Seat Type: Cup Mounted Seat (US Seal Type 1)
• Stationary Seat Material: Ni-Resist(SS)/Buna
• Stationary Seat Dimensions: 1.500" Bore, 0.406" Thick
• Maximum Temperature: 225F (107C)
• Maximum Pressure: to 150 psi (10.3 Bar)
• Seal Faces: Carbon vs. Stainless