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  • 1/2" NPT Angle Radiator Steam Trap Product Image
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    1/2" NPT Angle Radiator Steam Trap 122A 1/2" NPT Angle Radiator Steam Trap
    SKU: 122A Barnes & Jones
    SKU: 122A
    Brand: Barnes & Jones
    (2)
    $65.40 each
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    236
    Wed, Aug 4
    236
    QtyArrives
    236 Wed, Aug 4
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  • 3/4" Big Mouth Main Air Vent Product Image
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    3/4" Big Mouth Main Air Vent BJ-3BM 3/4" Big Mouth Main Air Vent
    SKU: BJ-3BM Barnes & Jones
    SKU: BJ-3BM
    Brand: Barnes & Jones
    (3)
    $101.49 each
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    65
    Wed, Aug 4
    65
    QtyArrives
    65 Wed, Aug 4
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  • 3/4" NPT Angle Radiator Steam Trap Product Image
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    3/4" NPT Angle Radiator Steam Trap 134A 3/4" NPT Angle Radiator Steam Trap
    SKU: 134A Barnes & Jones
    SKU: 134A
    Brand: Barnes & Jones
    $97.86 each
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    27
    Wed, Aug 4
    27
    QtyArrives
    27 Wed, Aug 4
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  • 3/4" H-Pattern Float & Thermostatic Steam Trap (15 PSIG) Product Image
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    3/4" H-Pattern Float & Thermostatic Steam Trap (15 PSIG) FT2015-3 3/4" H-Pattern Float & Thermostatic Steam Trap (15 PSIG)
    SKU: FT2015-3 Barnes & Jones
    SKU: FT2015-3
    Brand: Barnes & Jones
    (1)
    $144.99 each
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    16
    Wed, Aug 4
    16
    QtyArrives
    16 Wed, Aug 4
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  • Universal Float and Thermostatic Faceplate Repair Kit (15 PSI) Product Image
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    Universal Float and Thermostatic Faceplate Repair Kit (15 PSI) FT15 Universal Float and Thermostatic Faceplate Repair Kit (15 PSI)
    SKU: FT15 Barnes & Jones
    SKU: FT15
    Brand: Barnes & Jones
    $153.07 each
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    27
    Wed, Aug 4
    27
    QtyArrives
    27 Wed, Aug 4
    Questions? Call 1-888-757-4774
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  • 3/4" NPT Vacuum Breaker Product Image
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    3/4" NPT Vacuum Breaker 3875 3/4" NPT Vacuum Breaker
    SKU: 3875 Barnes & Jones
    SKU: 3875
    Brand: Barnes & Jones
    $63.86 each
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    13
    Wed, Aug 4
    13
    QtyArrives
    13 Wed, Aug 4
    Questions? Call 1-888-757-4774
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  • Cage Unit for<br>1/2" Dunham-Bush Steam Traps Product Image
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    Cage Unit for 1/2" Dunham-Bush Steam Traps 1950 Cage Unit for 1/2" Dunham-Bush Steam Traps
    SKU: 1950 Barnes & Jones
    SKU: 1950
    Brand: Barnes & Jones
    $45.53 each
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    22
    Wed, Aug 4
    22
    QtyArrives
    22 Wed, Aug 4
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  • Cover for Cage Unit 1950 Product Image
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    Cover for Cage Unit 1950 1950C Cover for Cage Unit 1950
    SKU: 1950C Barnes & Jones
    SKU: 1950C
    Brand: Barnes & Jones
    $20.61 each
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    16
    Wed, Aug 4
    16
    QtyArrives
    16 Wed, Aug 4
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  • Cage Unit for Hoffman Specialty Traps Product Image
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    Cage Unit for Hoffman Specialty Traps 3500 Cage Unit for Hoffman Specialty Traps
    SKU: 3500 Barnes & Jones
    SKU: 3500
    Brand: Barnes & Jones
    $43.26 each
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    29
    Wed, Aug 4
    29
    QtyArrives
    29 Wed, Aug 4
    Questions? Call 1-888-757-4774
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  • Cage Unit for<br>1/2" Steam Traps Product Image
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    Cage Unit for 1/2" Steam Traps 1721 Cage Unit for 1/2" Steam Traps
    SKU: 1721 Barnes & Jones
    SKU: 1721
    Brand: Barnes & Jones
    $52.29 each
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    31
    Wed, Aug 4
    31
    QtyArrives
    31 Wed, Aug 4
    Questions? Call 1-888-757-4774
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  • 1/2" NPT Straight Radiator Steam Trap Product Image
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    1/2" NPT Straight Radiator Steam Trap 122S-BARNES-JONES 1/2" NPT Straight Radiator Steam Trap
    SKU: 122S-BARNES-JONES Barnes & Jones
    SKU: 122S-BARNES-JONES
    Brand: Barnes & Jones
    $88.58 each
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    12
    Wed, Aug 4
    12
    QtyArrives
    12 Wed, Aug 4
    Questions? Call 1-888-757-4774
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  • 1" H-Pattern Float & Thermostatic Steam Trap (15 PSIG) Product Image
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    1" H-Pattern Float & Thermostatic Steam Trap (15 PSIG) FT2015-4 1" H-Pattern Float & Thermostatic Steam Trap (15 PSIG)
    SKU: FT2015-4 Barnes & Jones
    SKU: FT2015-4
    Brand: Barnes & Jones
    $176.45 each
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    3
    Wed, Aug 4
    3
    QtyArrives
    3 Wed, Aug 4
    Questions? Call 1-888-757-4774
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  • Cover for Cage Unit 3500 Product Image
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    Cover for Cage Unit 3500 3500C Cover for Cage Unit 3500
    SKU: 3500C Barnes & Jones
    SKU: 3500C
    Brand: Barnes & Jones
    $20.36 each
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    13
    Wed, Aug 4
    13
    QtyArrives
    13 Wed, Aug 4
    Questions? Call 1-888-757-4774
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  • Cage Unit for<br>3/4" Steam Traps Product Image
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    Cage Unit for 3/4" Steam Traps 1929 Cage Unit for 3/4" Steam Traps
    SKU: 1929 Barnes & Jones
    SKU: 1929
    Brand: Barnes & Jones
    $43.26 each
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    26
    Wed, Aug 4
    26
    QtyArrives
    26 Wed, Aug 4
    Questions? Call 1-888-757-4774
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  • Gasket Kit for FT2015-3 Product Image
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    Gasket Kit for FT2015-3 1330-196 Gasket Kit for FT2015-3
    SKU: 1330-196 Barnes & Jones
    SKU: 1330-196
    Brand: Barnes & Jones
    $9.22 each
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    Wed, Aug 18 – Wed, Aug 25
    Arrives
    Wed, Aug 18 – Wed, Aug 25
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  • Cage Unit for Model B1 (integral seat with integral bellows) Trane Traps Product Image
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    Cage Unit for Model B1 (integral seat with integral bellows) Trane Traps 4320 Cage Unit for Model B1 (integral seat with integral bellows) Trane Traps
    SKU: 4320 Barnes & Jones
    SKU: 4320
    Brand: Barnes & Jones
    $42.83 each
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    5
    Wed, Aug 4
    5
    QtyArrives
    5 Wed, Aug 4
    Questions? Call 1-888-757-4774
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  • 1/2" Big Mouth Crossover Trap Product Image
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    1/2" Big Mouth Crossover Trap BJ-2CR 1/2" Big Mouth Crossover Trap
    SKU: BJ-2CR Barnes & Jones
    SKU: BJ-2CR
    Brand: Barnes & Jones
    $89.99 each
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    18
    Wed, Aug 4
    18
    QtyArrives
    18 Wed, Aug 4
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  • Cage Unit for Illinois Traps Product Image
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    Cage Unit for Illinois Traps 2819 Cage Unit for Illinois Traps
    SKU: 2819 Barnes & Jones
    SKU: 2819
    Brand: Barnes & Jones
    $30.78 each
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    Wed, Aug 18 – Wed, Aug 25
    Arrives
    Wed, Aug 18 – Wed, Aug 25
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
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  • Cage Unit for Warren Webster Traps (512/513 Series) Product Image
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    Cage Unit for Warren Webster Traps (512/513 Series) 1998 Cage Unit for Warren Webster Traps (512/513 Series)
    SKU: 1998 Barnes & Jones
    SKU: 1998
    Brand: Barnes & Jones
    $73.24 each
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    46
    Wed, Aug 4
    46
    QtyArrives
    46 Wed, Aug 4
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  • 3/4" NPT Straight Radiator Steam Trap Product Image
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    3/4" NPT Straight Radiator Steam Trap 134S 3/4" NPT Straight Radiator Steam Trap
    SKU: 134S Barnes & Jones
    SKU: 134S
    Brand: Barnes & Jones
    $101.23 each
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    Wed, Aug 18 – Wed, Aug 25
    Arrives
    Wed, Aug 18 – Wed, Aug 25
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
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  • 1/2" NPT Vacuum Breaker Product Image
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    1/2" NPT Vacuum Breaker 3856 1/2" NPT Vacuum Breaker
    SKU: 3856 Barnes & Jones
    SKU: 3856
    Brand: Barnes & Jones
    $61.92 each
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    Wed, Aug 18 – Wed, Aug 25
    Arrives
    Wed, Aug 18 – Wed, Aug 25
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
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  • 3/4" Big Mouth Crossover Trap Product Image
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    3/4" Big Mouth Crossover Trap BJ-3CR 3/4" Big Mouth Crossover Trap
    SKU: BJ-3CR Barnes & Jones
    SKU: BJ-3CR
    Brand: Barnes & Jones
    $89.99 each
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    Wed, Aug 18 – Wed, Aug 25
    Arrives
    Wed, Aug 18 – Wed, Aug 25
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
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  • Cage Unit for Warren Webster Traps Product Image
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    Cage Unit for Warren Webster Traps 1972-BARNES Cage Unit for Warren Webster Traps
    SKU: 1972-BARNES Barnes & Jones
    SKU: 1972-BARNES
    Brand: Barnes & Jones
    $70.90 each
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    Wed, Aug 18 – Wed, Aug 25
    Arrives
    Wed, Aug 18 – Wed, Aug 25
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
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  • Repair Kit for 1" Barnes and Jones FT2015-4 Product Image
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    Repair Kit for 1" Barnes and Jones FT2015-4 RK2015-4 Repair Kit for 1" Barnes and Jones FT2015-4
    SKU: RK2015-4 Barnes & Jones
    SKU: RK2015-4
    Brand: Barnes & Jones
    $187.09 each
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    2
    Wed, Aug 4
    2
    QtyArrives
    2 Wed, Aug 4
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FAQs, Manuals & Videos

Resources

Articles

  • Barnes & Jones was founded nearly 120 years ago by two engineers, Walter Barnes, a graduate of The Massachusetts Institute of Technology, and Bill Jones a graduate of The Worcester Polytechnic Institute. Around 1897, the two joined forces to design and layout two pipe central steam heating systems for new construction in and around Boston, New York City and Chicago.

    Today, Barnes & Jones Inc. manufactures 100% Calibrated Cage Unit inserts for every heating steam trap body ever made. Barnes and Jones products are available throughout North America, Central and South America and most of Europe by over 10,000 representatives. The operating principle, introduced in 1902, remains unchanged as Cage Units emerge, today, as the preferred automatic valving solution for high-tech environmental control systems.

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