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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
    Brand: Barnes & Jones
    $57.99 each
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  • Big Mouth Air Vent Product Image
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    Big Mouth Air Vent BJ-3BM Big Mouth Air Vent
    SKU: BJ-3BM
    Brand: Barnes & Jones
    $89.99 each
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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
    Brand: Barnes & Jones
    $94.99 each
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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
    Brand: Barnes & Jones
    $61.99 each
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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
    Brand: Barnes & Jones
    $124.99 each
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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
    Brand: Barnes & Jones
    $144.99 each
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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
    Brand: Barnes & Jones
    $41.99 each
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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
    Brand: Barnes & Jones
    $41.99 each
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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
    Brand: Barnes & Jones
    $41.99 each
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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
    Brand: Barnes & Jones
    $85.99 each
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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
    Brand: Barnes & Jones
    $18.99 each
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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
    Brand: Barnes & Jones
    $18.99 each
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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
    Brand: Barnes & Jones
    $41.99 each
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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
    Brand: Barnes & Jones
    $41.99 each
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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
    Brand: Barnes & Jones
    $8.59 each
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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
    Brand: Barnes & Jones
    $172.99 each
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  • 1" NPT Angle Radiator Steam Trap Product Image
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    1" NPT Angle Radiator Steam Trap 147A 1" NPT Angle Radiator Steam Trap
    SKU: 147A
    Brand: Barnes & Jones
    $132.99 each
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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
    Brand: Barnes & Jones
    $41.99 each
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  • Repair Kit for 41T Traps Product Image
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    Repair Kit for 41T Traps 1FT Repair Kit for 41T Traps
    SKU: 1FT
    Brand: Barnes & Jones
    $122.99 each
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  • Cage Unit for Model H (1/2" seat in) Spirax-Sarco Traps Product Image
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    Cage Unit for Model H (1/2" seat in) Spirax-Sarco Traps 4117-BARNES Cage Unit for Model H (1/2" seat in) Spirax-Sarco Traps
    SKU: 4117-BARNES
    Brand: Barnes & Jones
    $41.99 each
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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
    Brand: Barnes & Jones
    $93.99 each
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  • Tailpiece Extension For 122A Product Image
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    Tailpiece Extension For 122A 1272-14 Tailpiece Extension For 122A
    SKU: 1272-14
    Brand: Barnes & Jones
    $11.99 each
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  • Brass Cover for Cage Units on Trane Traps Product Image
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    Brass Cover for Cage Units on Trane Traps 4321C Brass Cover for Cage Units on Trane Traps
    SKU: 4321C
    Brand: Barnes & Jones
    $18.99 each
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  • 3/4" - 1" Trane Repair Kit Product Image
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    3/4" - 1" Trane Repair Kit 55AL 3/4" - 1" Trane Repair Kit
    SKU: 55AL
    Brand: Barnes & Jones
    $114.99 each
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  • 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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