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

Brand	US SEAL
MPN	PS-687

US SEAL PS-687 Pump Seal 0.875" Type C Mechanical Seal

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