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    +38 063 3621231+38 067 3607101+38 095 6563757
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    Mechanical seal for the pump

    JOHNSON - mechanical seal

    The design of the mechanical seal consists mainly of two parts: a movable part and a fixed part. The fixed part is usually a ring that is fixed in the pump housing. The movable part is mounted on the shaft and is pressed against the fixed part by means of a spring. Mechanical sealing is achieved using secondary seals (bellows, rubber rings) and a friction pair. When choosing a mechanical seal, it is important to choose the material of the secondary seals and friction pairs.

    Johnson Mechanical Shaft Seal Materials

      Rubber material:
    • NBR (nitrile butadiene rubber), temperature resistance -20 to +120 C
    • EPDM (ethylene-propylene rubber), temperature resistance -30 to +170 C
    • Viton (fluoroelastomer), temperature resistance -30 to +185 C
    • PTFE (fluoroplast), temperature resistance -260 to +260C
      Friction pairs
    • SUS – metal (stainless steel)
    • CAR – graphite
    • CER – ceramic
    • SIC – silicon carbide
    • TС – tungsten carbide

    It is visually difficult to understand how these materials differ from each other (except for PTFE), so it is easier to choose a material based on the pumped medium and its temperature. Contact us, we will help you determine the material and choose the right mechanical seal for your Johnson pump.

    R-BT-FN R-BT-FN
    R-BT-AR R-BT-AR
    R-M3N R-M3N
    R-MG1 R-MG1
    R-2100 R-2100
    Sort by:
    Mechanical seal for pump shaft R-MG1 20, SIC/SIC, VITON, 304, G60 — BTS Engineering
    Mechanical seal for pump shaft R-MG1 20, SIC/SIC, VITON, 304, G60 — BTS Engineering
    1054386
    Mechanical seal for pump shaft R-MG1 20, SIC/SIC, VITON, 304, G60
    Price:
    $32
    In stock
    - +
    Mechanical pump seal R-BT-AR 25, SIC/SIC, NBR, 304 — BTS Engineering
    Mechanical pump seal R-BT-AR 25, SIC/SIC, NBR, 304 — BTS Engineering
    1053504
    Mechanical pump seal R-BT-AR 25, SIC/SIC, NBR, 304
    Price:
    $32
    In stock
    - +
    Mechanical seal of R-BT-AR pump WILO pump, Johnson pump 32, CAR/CER, NBR, 304 — BTS Engineering
    Mechanical seal of R-BT-AR pump WILO pump, Johnson pump 32, CAR/CER, NBR, 304 — BTS Engineering
    1053522
    Mechanical seal of R-BT-AR pump WILO pump, Johnson pump 32, CAR/CER, NBR, 304
    Price:
    $36
    In stock
    - +
    Mechanical seal for pump shaft R-MG12 30, CAR/SIC, EPDM, 304, G60 — BTS Engineering
    Mechanical seal for pump shaft R-MG12 30, CAR/SIC, EPDM, 304, G60 — BTS Engineering
    1054781
    Mechanical seal for pump shaft R-MG12 30, CAR/SIC, EPDM, 304, G60
    Price:
    $39
    In stock
    - +
    Mechanical pump seal R-BT-AR 25, CAR/SIC, EPDM, 304 for Johnson pump, ABS, Pedrollo, Faggiolatti, NIROSTAR — BTS Engineering
    Mechanical pump seal R-BT-AR 25, CAR/SIC, EPDM, 304 for Johnson pump, ABS, Pedrollo, Faggiolatti, NIROSTAR — BTS Engineering
    1053499
    Mechanical pump seal R-BT-AR 25, CAR/SIC, EPDM, 304 for Johnson pump, ABS, Pedrollo, Faggiolatti, NIROSTAR
    Price:
    $25
    In stock
    - +
    Mechanical seal for pump shaft R-BT-AR 32, CAR/CER, EPDM, 304 — BTS Engineering
    Mechanical seal for pump shaft R-BT-AR 32, CAR/CER, EPDM, 304 — BTS Engineering
    1009974
    Mechanical seal for pump shaft R-BT-AR 32, CAR/CER, EPDM, 304
    Price:
    $32
    In stock
    - +
    Mechanical seal for pump shaft R-MG12 40, SIC/SIC, VITON, 304, G60 — BTS Engineering
    Mechanical seal for pump shaft R-MG12 40, SIC/SIC, VITON, 304, G60 — BTS Engineering
    1054831
    Mechanical seal for pump shaft R-MG12 40, SIC/SIC, VITON, 304, G60
    Price:
    $98
    In stock
    - +
    Mechanical seal for pump shaft R-MG1 19, SIC/SIC, VITON, 304, G60 — BTS Engineering
    Mechanical seal for pump shaft R-MG1 19, SIC/SIC, VITON, 304, G60 — BTS Engineering
    1054377
    Mechanical seal for pump shaft R-MG1 19, SIC/SIC, VITON, 304, G60
    Price:
    $31
    In stock
    - +
    Mechanical seal for pump shaft Mas Daf, Sulzer, Dreno, Pentax, WILO, ALLWEILER ABS type R-MG1 20, CAR/SIC, EPDM, 304, G60 — BTS Engineering
    Mechanical seal for pump shaft Mas Daf, Sulzer, Dreno, Pentax, WILO, ALLWEILER ABS type R-MG1 20, CAR/SIC, EPDM, 304, G60 — BTS Engineering
    1014476
    Mechanical seal for pump shaft Mas Daf, Sulzer, Dreno, Pentax, WILO, ALLWEILER ABS type R-MG1 20, CAR/SIC, EPDM, 304, G60
    Price:
    $26
    In stock
    - +
    Mechanical seal for Johnson pump R-MG13 28, CAR/SIC, EPDM, 304, G60 — BTS Engineering
    Mechanical seal for Johnson pump R-MG13 28, CAR/SIC, EPDM, 304, G60 — BTS Engineering
    1014306
    Mechanical seal for Johnson pump R-MG13 28, CAR/SIC, EPDM, 304, G60
    Price:
    $36
    In stock
    - +
    Mechanical shaft seal R-MG12 20, CAR/SIC, EPDM, 304, G60 — BTS Engineering
    Mechanical shaft seal R-MG12 20, CAR/SIC, EPDM, 304, G60 — BTS Engineering
    1054729
    Mechanical shaft seal R-MG12 20, CAR/SIC, EPDM, 304, G60
    Price:
    $26
    In stock
    - +
    Mechanical seal for pump shaft R-MG12 20, CAR/SIC, VITON, 304, G60 — BTS Engineering
    Mechanical seal for pump shaft R-MG12 20, CAR/SIC, VITON, 304, G60 — BTS Engineering
    1054730
    Mechanical seal for pump shaft R-MG12 20, CAR/SIC, VITON, 304, G60
    Price:
    $32
    In stock
    - +
    Mechanical seal R-MG12 25, SIC/SIC, VITON, 304, G60 — BTS Engineering
    Mechanical seal R-MG12 25, SIC/SIC, VITON, 304, G60 — BTS Engineering
    1054767
    Mechanical seal R-MG12 25, SIC/SIC, VITON, 304, G60
    Price:
    $39
    In stock
    - +
    Mechanical shaft seal ALLWEILER, Azcue Pumps, Inoxpa, Johnson pump, Stork R-MG12 25, CAR/SIC, EPDM, 304, G60 — BTS Engineering
    Mechanical shaft seal ALLWEILER, Azcue Pumps, Inoxpa, Johnson pump, Stork R-MG12 25, CAR/SIC, EPDM, 304, G60 — BTS Engineering
    1054760
    Mechanical shaft seal ALLWEILER, Azcue Pumps, Inoxpa, Johnson pump, Stork R-MG12 25, CAR/SIC, EPDM, 304, G60
    Price:
    $32
    In stock
    - +
    Mechanical seal for pump shaft R-MG12 40, CAR/SIC, EPDM, 304, G60 — BTS Engineering
    Mechanical seal for pump shaft R-MG12 40, CAR/SIC, EPDM, 304, G60 — BTS Engineering
    1054826
    Mechanical seal for pump shaft R-MG12 40, CAR/SIC, EPDM, 304, G60
    Price:
    $82
    In stock
    - +
    Mechanical seal R-M7N 30, SIC/SIC, VITON, 304, G9 — BTS Engineering
    Mechanical seal R-M7N 30, SIC/SIC, VITON, 304, G9 — BTS Engineering
    -20%
    1009344
    Mechanical seal R-M7N 30, SIC/SIC, VITON, 304, G9
    $122
    Price:
    $97
    In stock
    - +
    Mechanical seal for pump shaft R-MG12 50, SIC/SIC, VITON, 304, G60 — BTS Engineering
    Mechanical seal for pump shaft R-MG12 50, SIC/SIC, VITON, 304, G60 — BTS Engineering
    1054878
    Mechanical seal for pump shaft R-MG12 50, SIC/SIC, VITON, 304, G60
    Price:
    $124
    In stock
    - +
    Mechanical seal R-M2N 25, CAR/SIC, EPDM, 304, G6 type ROTEN 22, UNITEN 22, BURGMANN M2N, AESSEAL T07, T07D — BTS Engineering
    Mechanical seal R-M2N 25, CAR/SIC, EPDM, 304, G6 type ROTEN 22, UNITEN 22, BURGMANN M2N, AESSEAL T07, T07D — BTS Engineering
    1054069
    Mechanical seal R-M2N 25, CAR/SIC, EPDM, 304, G6 type ROTEN 22, UNITEN 22, BURGMANN M2N, AESSEAL T07, T07D
    Price:
    $43
    In stock
    - +
    Mechanical seal of the pump EVAC PUMP, Johnson pump R-M2N 25, CAR/SIC, VITON, 304, G6 — BTS Engineering
    Mechanical seal of the pump EVAC PUMP, Johnson pump R-M2N 25, CAR/SIC, VITON, 304, G6 — BTS Engineering
    1054070
    Mechanical seal of the pump EVAC PUMP, Johnson pump R-M2N 25, CAR/SIC, VITON, 304, G6
    Price:
    $51
    In stock
    - +
    Mechanical seal for Johnson pump shaft, Hydromatic R-MG12 50, CAR/SIC, EPDM, 304, G60 — BTS Engineering
    Mechanical seal for Johnson pump shaft, Hydromatic R-MG12 50, CAR/SIC, EPDM, 304, G60 — BTS Engineering
    1054873
    Mechanical seal for Johnson pump shaft, Hydromatic R-MG12 50, CAR/SIC, EPDM, 304, G60
    Price:
    $103
    In stock
    - +
    Mechanical seal for pump shaft R-MG12 30, CAR/CER, VITON, 304, G60 — BTS Engineering
    Mechanical seal for pump shaft R-MG12 30, CAR/CER, VITON, 304, G60 — BTS Engineering
    1054779
    Mechanical seal for pump shaft R-MG12 30, CAR/CER, VITON, 304, G60
    Price:
    $47
    In stock
    - +
    Mechanical seal R-BT-AR 32, CAR/CER, EPDM, 304 — BTS Engineering
    Mechanical seal R-BT-AR 32, CAR/CER, EPDM, 304 — BTS Engineering
    13716_32__CAR/CER__EPDM__304
    Mechanical seal R-BT-AR 32, CAR/CER, EPDM, 304
    Price:
    $32
    Pre-order only
    - +
    Mechanical seal R-BT-AR 32, CAR/CER, NBR, 304 — BTS Engineering
    Mechanical seal R-BT-AR 32, CAR/CER, NBR, 304 — BTS Engineering
    13716_32__CAR/CER__NBR__304
    Mechanical seal R-BT-AR 32, CAR/CER, NBR, 304
    Price:
    $36
    Pre-order only
    - +
    Mechanical seal R-BT-AR 32, CAR/CER, VITON, 304 — BTS Engineering
    Mechanical seal R-BT-AR 32, CAR/CER, VITON, 304 — BTS Engineering
    13716_32__CAR/CER__VITON__304
    Mechanical seal R-BT-AR 32, CAR/CER, VITON, 304
    Price:
    $38
    Pre-order only
    - +
    Mechanical seal R-BT-AR 32, CAR/SIC, EPDM, 304 — BTS Engineering
    Mechanical seal R-BT-AR 32, CAR/SIC, EPDM, 304 — BTS Engineering
    13716_32__CAR/SIC__EPDM__304
    Mechanical seal R-BT-AR 32, CAR/SIC, EPDM, 304
    Price:
    $32
    Pre-order only
    - +
    Mechanical shaft seal R-MG12 25, CAR/CER, VITON, 304, G4 — BTS Engineering
    Mechanical shaft seal R-MG12 25, CAR/CER, VITON, 304, G4 — BTS Engineering
    13949
    Mechanical shaft seal R-MG12 25, CAR/CER, VITON, 304, G4
    Price:
    $43
    Pre-order only
    - +
    Mechanical shaft seal R-MG12 25, SIC/SIC, EPDM, 304, G4 — BTS Engineering
    Mechanical shaft seal R-MG12 25, SIC/SIC, EPDM, 304, G4 — BTS Engineering
    13949
    Mechanical shaft seal R-MG12 25, SIC/SIC, EPDM, 304, G4
    Price:
    $36
    Pre-order only
    - +
    Mechanical shaft seal R-MG12 50, CAR/CER, EPDM, 304, G60 — BTS Engineering
    Mechanical shaft seal R-MG12 50, CAR/CER, EPDM, 304, G60 — BTS Engineering
    13949
    Mechanical shaft seal R-MG12 50, CAR/CER, EPDM, 304, G60
    Price:
    $103
    Pre-order only
    - +
    Mechanical shaft seal R-MG12 50, CAR/CER, VITON, 304, G60 — BTS Engineering
    Mechanical shaft seal R-MG12 50, CAR/CER, VITON, 304, G60 — BTS Engineering
    13949
    Mechanical shaft seal R-MG12 50, CAR/CER, VITON, 304, G60
    Price:
    $124
    Pre-order only
    - +
    Mechanical shaft seal R-MG12 50, CAR/SIC, EPDM, 304, G60 — BTS Engineering
    Mechanical shaft seal R-MG12 50, CAR/SIC, EPDM, 304, G60 — BTS Engineering
    13949
    Mechanical shaft seal R-MG12 50, CAR/SIC, EPDM, 304, G60
    Price:
    $103
    Pre-order only
    - +
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