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561.414.1046

361c / 2122 Mechanical Seal (PS-361 / PS-2122) – 1-1/4″

N22 pump seal ps-2016, ps-4518 ps-188 ps-754 ps-204 ps-361 ps-354 ps-305 ps-745 ps-205 ps-523 ps-479 ps-537 ps-323

361c / 2122 Mechanical Seal (PS-361 / PS-2122) – 1-1/4″

SKU: N/A Brand: VULCAN ENGINEERING

Weight 1 lbs
Dimensions 8 × 6 × 4 in
QTY Price
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  • DESCRIPTION

    Single Spring Mechanical Seal 361c / 2122 | PS-361 / PS-2122 Equivalent

    361c / 2122 single spring mechanical seal, PS-361 / PS-2122 replacement. Fits 1-1/4″ shaft with 1.875″× 0.437″ seat and Type N-22 rotary head.

    Shaft size: 1-1/4″ • Seat: 1.875″ x 0.437″ cup • Rotary OD: 1.787″ • Working length: 1.687″

    Please Note: 361C is a drop-in replacement for U.S. Seal PS-2122 ; Sta-Rite S32013 (and other comparable models), this seal features a smaller-OD rotary for a more universal fit—especially in tight housings and straight-bore/ANSI boxes. The crimped-head design enhances structural integrity and sealing force, delivering higher pressure capability and reliable, long-term performance.

    Crimped rotary head type N-22. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.

    Interchange / replacements:

    • Equivalent to Pac-Seal T-21 (long working length) and Burgmann MG9

    • Can replace Type E and Type 1 in many applications (confirm dimensions)

    Design & construction:

    • Electro-polished 304 stainless steel metal parts

    • Elastomeric bellows for stable sealing and easy installation

    • Independent of shaft rotation

    Materials available (select from dropdown menu above):

    • CAR/CER/NIT — Carbon/Ceramic, Nitrile elastomers

    • CAR/CER/VIT — Carbon/Ceramic, Viton elastomers

    • SIC/SIC/VIT — Silicon Carbide/Silicon Carbide, Viton elastomers

    Have questions? Check out our Single Spring Seal Guide  or call us anytime—we’re here to help.

    Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.

    Looking for more? Shop Pump Repair Kits, Parts & Accessories, and  Gaskets.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
  • SPECIFICATIONS
    Cross Reference / Alternative Part Numbers

    OEM numbers: S05648 , S20770 , S335 , 84003-14 , 052016 , 14007099 , 13-650-1010 , 5P374 , Q26-243-Y2

    Brands: BERKELEY PUMPS (A PENTAIR Brand) , CHICAGO PUMP (Division of GRUNDFOS, INC.) , GECKO ALLIANCE,INC. , GORMAN-RUPP COMPANY , GOULDS PUMPS , GUSHER PUMPS , LUITWEILER CORPORATION , PACO , PEERLESS PUMP COMPANY , SYNCROFLO, INC. , TEEL PUMP , WEINMAN® (Division of CRANE PUMPS & SYSTEMS)

    Nameplate Data: [All Models A Row Pump except 6YPH, 4EPBL & 6YP] , 2” Fig. 3460 , BDAC , 2CLSU-3ALR , PB-3, 3X4X10 , [When Seal is Mounted on Shaft 2L-4, 5, 6, 3L-6, 4L3, 5L3]

    2122

    OEM numbers: 52114901807 , 34510, 33545 , GS8106850 , S32013 , 10036903 , GRI-10036903 , 91868265, 84002-31 , 10-0369-03 , 14032698 , K105-1, K107-1 , 91909832, 91909909 , S32013

    2122 CAR/CER/VIT: GS8105960

    Brands: A-C PUMP (A XYLEM Brand) , AERMOTOR PUMPS (A PENTAIR Brand) , AMPCO PUMPS COMPANY , BERKELEY PUMPS (A PENTAIR Brand) , FRANKLIN ELECTRIC COMPANY, INC. , GRISWOLD PUMP COMPANY , GRUNDFOS, INC. , GUSHER PUMPS , JACUZZI , PACO , STA-RITE INDUSTRIES

    Nameplate Data: None available

    Part number variations
    PS-361 / PS361 / PS 361
    PS-2122 / PS2122 / PS 2122
    361 seal / 361 mechanical seal / 361c / 361 C
    2122 seal / 2122 mechanical seal / “361c 2122” / “361c/2122”

    Size / measurement variations
    1-1/4″ mechanical seal / 1.25″ seal / 1 1/4 seal
    1.875 × 0.437 seat / 1-7/8 × 7/16 seat / 1.875 x .437 seat
    1.787 rotary OD / 1.787″ OD
    1.687 working length / 1.687″ length

    Style variations
    N-22 / N22
    Pac-Seal T-21 (long working length)
    Burgmann MG9
    Type E / Type 1
    “U.S. Seal PS-2122” (common search)

  • PHYSICAL PROPERTIES

    T-N11/N22 Seal Heads

    Our T-N11/N22 type seal heads are designed with a reduced outer diameter, making them fully compatible with ANSI seal chamber dimensions. The rotary portion of our seal is typically smaller than the stationary seat, and can fit straight box bores where many other seals cannot.

    These seals are direct replacements for industry-standard T-E / 1 heads as well as C / 21 models.

    Note: The N11/N22 seal designs max shaft size is 2.25″. For larger shafts, please refer to our other seal types.

    Have questions? Call us anytime—we’re here to help.

Disclaimer: Seal House USA provides aftermarket replacement parts. Any OEM names are used strictly for cross-reference. We are an independent supplier.

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