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
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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BrandBerliss™
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Manufacturer Part NumberBSP-979
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CountryUSA
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Temperature Rating200 deg F
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Pressure Rating230 psi
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TypeType 21
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Inside Diameter1-1/4 in
- Unbalanced, bi-directional
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Alternative Part NumberMA21_1-1/4_BCLNLP6
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UNSPSC40151700
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Package Description1/PK
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Standards/ApprovalsBSA|ICWM|MHIA|NCA
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Catalog
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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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