U.S. SEAL PS-979 Type 21 Mechanical Seal Assembly With Cup, 1-1/4 in ID, 304/316 Stainless Steel Spring, 1.937 in OD Seal Head, 1-7/8 in OD x 0.437 in THK, Buna-N Elastomers, Carbon Primary Ring, Stainless Steel Metal Parts, Ni-Resist Mating Ring

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$123.66
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SKU: USSPS979
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Shaft Size: 1.250" (1-1/4 inches) Rotary Head Type: Type C (Elastomer bellows with a single coil tapered spring) Stationary Seat Type: Type 1 (Cup-mounted mating ring) Stationary Bore Cup Diameter: 1.765"Operating Temperature Range: -40°F to 225°F (-40°C to 107°C) Maximum Operating Pressure: 150 PSI (10.3 Bar)

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Main specs
  • Brand
    Berliss™
  • Manufacturer Part Number
    BSP-979
  • Country
    USA
Specification
  • Temperature Rating
    200 deg F
  • Pressure Rating
    230 psi
  • Type
    Type 21
  • Inside Diameter
    1-1/4 in
Features
  • Unbalanced, bi-directional
Additional Information
  • Alternative Part Number
    MA21_1-1/4_BCLNLP6
  • UNSPSC
    40151700
  • Package Description
    1/PK
  • Standards/Approvals
    BSA|ICWM|MHIA|NCA
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