381C
381C
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DESCRIPTION
Single Spring Mechanical Seal 381C — 1-1/4″ | PS-381 Equivalent
Equal to: Industry standard 381 / PS-381 ; can also replace PS-804 & PS-246
Typical applications: Centrifugal pumps, mixers, and other rotating equipment.
Key specs: Shaft size: 1-1/4″ single spring seal • Seat: 1.875″ x 0.437″ • Rotary OD: 1.787″ • Working length: 1.062″
Design & construction:
Crimped rotary head (Type N-33)—equivalent to Pac-Seal T-21 (tapered spring) and Burgmann MG9, can replace seal type D & 2 type seal heads. Tapered spring for wide base to fit over impeller hub or other similar feature. Electro-polished 304 stainless steel metal parts. Elastomeric bellows. Non-directional (independent of shaft rotation).Materials available (choose from dropdown)
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CAR/CER/NIT — Carbon vs. Ceramic faces, Nitrile elastomers
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CAR/CER/VIT — Carbon vs. Ceramic faces, Viton® elastomers
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SIC/SIC/VIT — Silicon Carbide vs. Silicon Carbide faces, Viton® elastomers
Please click “specifications” below for OEM numbers and Pump Nameplate Data
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SPECIFICATIONS
OEM numbers:
381: 64262-8A , S05649, S20784, S20785 , Westco 2G , S321 , 909-61 , 21181A016 , X2174, X-2429UKY , Q26-79-Y2
246: U109-220 , 5P395 , Q26-166-Y2
804: 17-62429-006
Brands:
381: BALDOR-RELIANCE (Member of the ABB GROUP) , BERKELEY PUMPS (A PENTAIR Brand) , BURKS® PUMPS (Division of CRANE PUMPS & SYSTEMS) , CARVER PUMP COMPANY , CRANE-DEMING (Division of CRANE PUMPS & SYSTEMS) , FAIRBANKS NIJHUIS , FEDERAL PUMP CORPORATION , GORMAN-RUPP COMPANY , LANCASTER PUMP COMPANY , LEWIS® PUMPS , MYERS, F.E. , WEIL PUMP COMPANY, INC. (Part of WILO USA) , WEINMAN® (Division of CRANE PUMPS & SYSTEMS)
246: FEDERAL PUMP CORPORATIO , STA-RITE INDUSTRIES , TEEL PUMP , WEINMAN® (Division of CRANE PUMPS & SYSTEMS)
804: STA-RITE INDUSTRIES , WEIL PUMP COMPANY, INC. (Part of WILO USA)
Nameplate Data:
381: Motor Frame 140 , 2TPKHS, 3TQKHS, 2TQKIS, 3TQKHS, 22TQKHS, 2TRKHS , KN-2H-2L-3N [Type M-909 and M-910]
246: CC / C Series, D Series [Group A-1G, 1-1/4G, 1-1/2G 1-1/2K, 1-1/2KH, 2G, GB, and KB. Group B-7-1/2. HP & Less at 1750 20 HP & less at 3500 RPM T1-1/2KH, 2K, 2-1/2G, 2-1/2K 3G, 3K, 4GL, and 4G]
804: CC / C Series, D Series
