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561.414.1046

446c Mechanical Seal (PS-446) – 1-3/4″

Type n11, C, 1 Mechanical pump Seal - buy now

446c Mechanical Seal (PS-446) – 1-3/4″

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 446C — 1-3/4″ | PS-446 Equivalent

    446c single spring mechanical seal, PS-446 / 446 equivalent. Fits 1-3/4″ shaft with 2.500″× 0.500″ seat and Type N-11 (Type C/21) rotary head.

    Typical applications: Centrifugal pumps, mixers, and other rotating equipment.

    Key specs: Shaft size: 1-3/4″ single spring seal • Seat: 2.500″ x 0.500″ cup • Rotary OD: 2.402″• Working length: 1.375″

    Design & construction:
    Crimped rotary head (Type N-11)—similar to industry Type C / 21; can also replace Type D / 2 with a simple spring change (in most cases). Electro-polished 304 stainless steel metal parts. Elastomeric bellows. Non-directional (independent of shaft rotation).

    Materials available (choose from dropdown)

    • CAR/CER/NIT — Carbon vs. Ceramic faces, Nitrile elastomers

    • CAR/CER/VIT — Carbon vs. Ceramic faces, Viton elastomers

    • SIC/SIC/VIT — Silicon Carbide vs. Silicon Carbide faces, 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 Number

    OEM numbers: 

    446 CAR/CER/NIT: 11116013 , 52115605802 , 10-1402-00 , 712-1012-753 , 19B5033 , 64262-12C , S32015 , 4S-5052 , 117185 , 0030888 , HYD1AC3 , HYD1AD1 , S1822 , 10K157 , 9152091001 , GRI-10037002 , 110490011 , 1100-17 , 25357000000 , 110490011 , 91909802 , 13470 , 101.000.196 , S32015 , 377281H , 19B5033 , C3-2-59 , 008168

    446 CAR/CER/VIT: 712-1012-764 , 64262-13C , 25271-942 , 9152091003 , 26685, 3516 , 70X125-M

    446 SIC/SIC/VIT: 10K31 , 205.311.001

    Brands: ABS USA (SULZER) , A-C PUMP (A XYLEM Brand) , AMERICAN-MARSH PUMPS (A WILO USA Brand) , AURORA PUMPS (A PENTAIR Brand) , BAKER-HYDRO (Division of WATERCO USA) , BALDOR-RELIANCE (Member of the ABB GROUP) , BERKELEY PUMPS (A PENTAIR Brand) , CARTER PUMPS, INC. , CHICAGO PUMP (Division of GRUNDFOS, INC.) , CRANE-DEMING (Division of CRANE PUMPS & SYSTEMS) , FAIRBANKS NIJHUIS , FEDERAL PUMP CORPORATION , GORMAN-RUPP COMPANY , GOULDS PUMPS , GRISWOLD PUMP COMPANY , HYDROMATIC PUMP COMPANY , LYCO WAUSAU, INC. , MARLOW (Division of ITT INDUSTRIES) , MYERS, F.E. , PACO , RAINBOW IRRIGATION SYSTEMS , SCOT PUMP (A WILO USA Brand) , STA-RITE INDUSTRIES , STONE CONSTRUCTION , SWABY MFG. COMPANY , WATERCO USA , YOEMANS CHICAGO CORPORATION (Part of GRUNDFOS, INC.) , ZOELLER PUMP COMPANY

    Brands CAR/CER/VIT only: MP PUMPS, INC. (Division of GARDNER DENVER) , PRICE PUMP COMPANY , WEBER INDUSTRIES, INC

    Brands SIC/SIC/VIT only: WEIL PUMP COMPANY, INC. (Part of WILO USA)

    Pump Nameplate Data: MAXEAL® V Series 5000 , OJ Power Series #4 , Motor Frame 180 or 210 , 7360 , 10K181 , CCPH / CCSPH Series

    Part number variations
    PS-446 / PS446 / PS 446
    446 seal / 446 mechanical seal / 446 pump seal
    446c / 446 C / 446-c

    Size / measurement variations
    1-3/4″ mechanical seal / 1.75″ seal / 1 3/4 seal
    2.500 × .500 seat / 2.5 × 0.5 seat / 2-1/2 × 1/2 seat
    2.402 rotary OD / 2.402″ OD
    1.375 working length / 1-3/8 working length

    Style variations
    N-11 / N11 / T-N11 seal head
    Type C/21 / Type 21 mechanical seal / C21 seal
    Type D/2 replacement (spring change)
    ANSI seal chamber compatible (T-N11/N22 note)

  • 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 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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