Steam Trap Repair Guide
Thermostatic Radiator Traps T-Z
T.S. (Thermal System)
| Size | Model Number | B&J Cage Unit | Type | Cover | Notes |
| 1/2″ | 2926 | A | New | Seat In | |
| 3/4″ | 3054 | A | Existing | Seat In | |
| 1″ | 3054 | A | Existing | Seat In |
THERMIDAIRE
| Size | Model Number | B&J Cage Unit | Type | Cover | Notes |
| 1/2″ | 1A | 4428 | A | Existing |
TRANE THERMOSTATIC
| Size | Model Number | B&J Cage Unit | Type | Cover | Notes |
| 1/2″ | B1 | 2854 | A | Existing | Integral Seat Removable Bellows |
| 1/2″ | B1 Vertical | 4221 | A | Existing | Integral Seat Removable Bellows |
| 1/2″ | B1 Vertical | 4270 | A | Existing | Removable Seat Removable Bellows |
| 1/2″ | B1 | 4270 | A | Existing | Removable Seat Removable Bellows |
| 1/2″ | B1 | 4270 | A | New | Integral Bellows Removable Seat |
| 1/2″ | B1 | 4320 | A | New | Integral Seat Integral Bellows |
| 1/2″ | B2 | 1965 | A | Existing | Integral Seat Removable Bellows |
| 1/2″ | B2 | 3444 | A | Existing | Removable Seat Removable Bellows |
| 1/2″ | B2 | 4321 | A | New | Integral Seat Integral Bellows |
| 1/2″ | B2 | 3444 | A | New | Integral Bellows Removable Seat |
| 3/4″ | B3 | 1966 | A | Existing | Integral Seat Removable Bellows |
| 3/4″ | B3 | 3442 | A | Existing | Removable Seat Removable Bellows |
| 3/4″ | B3 | 4322 | A | New | Integral Seat |
| 3/4″ | B3 | 3442 | A | New | Integral Bellows Removable Seat |
| 1″ | B4 | 3580 | A | Existing | Integral Seat Removable Bellows |
| 1″ | B4 | 3442 | A | Existing | Removable Seat Removable Bellows |
| 1″ | B4 | 4323 | A | New | Integral Seat Integral Bellows |
| 1″ | B4 | 3442 | A | New | Integral Bellows Removable Seat |
| 1 1/4″ | B5 | 3442 | A | Existing | Seat In |
| 1/2″&3/4″ | No # | 1969 | A | Existing | 21/64″ Orifice Removable Bellow |
NOTE: A BARNES & JONES CAGE UNIT IS AVAILABLE FOR ANY TRANE TRAP BEING USED ABOVE 15 psi.
SPECIFY OPERATING PRESSURE WHEN ORDERING
TRANE FLOAT & THERMOSTATIC*
| Size | Model Number | B&J Cage Unit | Type | Cover | Notes |
| 3/4″-1″ | 55AL | 3354 | A | None | Head gskt 1330-168 |
| 3/4″-1″ | 55ALS | 3355 | B | None | Head gskt 1330-168 |
| 1 1/4″ | 66CL | 3354 | A | None | Head gskt 1330-170 |
| 1 1/2″-2″ | 77HL | 3354 | A | None | Head gskt 1330-171 |
| 3/4″&1″ | 55AM | 3355 | B | None | Head gskt 1330-168 |
| 1 1/4″ | 66CM | 3355 | B | None | Head gskt 1330-170 |
| 1 1/2″-2″ | 77HM | 3355 | B | None | Head gskt 1330-171 |
| 3/4″&1″ | 55AH | 3355 | B | None | Head gskt 1330-168 |
| 1 1/4″ | 66CH | 3355 | B | None | Head gskt 1330-170 |
| 1 1/2″&2″ | 77HH | 3355 | B | None | Head gskt 1330-171 |
| 3/4″&1″ | AL | 3354 | A | None | Head gskt 1330-168 |
| 1 1/4″ | CL | 3354 | A | None | Head gskt 1330-170 |
| 1 1/2″-2″ | HL | 3354 | A | None | Head gskt 1330-171 |
| 3/4″ | 626 | 3354 | A | None | Seat In |
| 3/4″ | 686 | 3354 | A | None | Seat In |
| 1/2″ | 8 | 2161 | A | New | Integral Seat |
| 3/4″ | 8 | 3413 | B | Existing | Seat In |
| 3/4″ | 8 | 4302 | A | Existing | Seat In |
| 1/2″ | S-1 | 3511 | A | Existing | Bolted cover |
| 3/4″ | S-3 | 4106 | A | Existing | Bolted cover |
| 1/2″ | W-1 | 3511 | A | Existing | Bolted cover |
| 1″ | 675 | 3354 | A | None | Seat In |
| 1″ | o31 | 3506 | A | None | Seat In |
| 1 1/4″ | o33 | 3506 | A | None | Seat In |
| 1 1/4″ | 167 | 3506 | A | None | Seat In |
| 1 1/4″ | 676-1 | 3354 | A | None |
*For complete trap repair kit see the F&T section.
H.O. TRERICE
| Size | Model Number | B&J Cage Unit | Type | Cover | Notes |
| 1/2″ | 100A | 3421 | A | Existing | |
| 1/2″ | 100X | 4063 | A | Existing |
TROJAN
| Size | Model Number | B&J Cage Unit | Type | Cover | Notes |
| 1/2″ | 3420 | A | Existing | Seat In | |
| 1/2″ | 2164 | A | New | Seat In | |
| 1/2″ | 3087 | A | Existing | Vertical |
TWIN CITY
| Size | Model Number | B&J Cage Unit | Type | Cover | Notes |
| 1/2″ | 3488 | A | Existing | Seat In |
VAPOR HEATING CO. – VAPOR SPEC. CO. – VASCO
| Size | Model Number | B&J Cage Unit | Type | Cover | Notes |
| 1/2″ | 2261 | A | New | Seat In | |
| 3/4″ | 3263 | A | Existing | Seat In | |
| 3/4″ | 4119 | A | New | ||
| 1/2″ VECO | Outboard | 2953 | A | New | Integral Seat |
| 1/2″ | 3395 | A | New | Seat In | |
| 1″ | 4417 | A | Existing | Seat In |
WARREN WEBSTER* THERMOSTATIC
| Size | Model Number | B&J Cage Unit | Type | Cover | Notes |
| 1/2″ | 02H | 1972 | A | Existing | |
| 1/2″ | 02G | 1972 | A | Existing | |
| 1/2″ | 02GS | 1972 | A | Existing | |
| 1/2″ | 02LS | 1972 | A | Existing | |
| 1/2″ | 02R | 1972 | A | Existing | |
| 1/2″ | O2RS | 1972 | A | Existing | |
| 1/2″ | 02HF | 3396 | A | Existing | |
| 1/2″ | 02HF1 | 1972 | A | New | |
| 1/2″ | 02V | 4157 | A | New | Seat In |
| 1/2″ | O2V-1 | 1972 | A | Existing | |
| 3/4″ | 03HT | 1972 | A | Existing | |
| 3/4″ | 33H5 | 1982 | B | Existing | |
| 1/2″ | 412 | 1998 | A | Existing | |
| 1/2″ | 412H | 1998 | A | Existing | |
| 1/2″ | 412G | 1998 | A | Existing | |
| 3/4″ | 413 | 1998 | A | New | |
| 1/2″ | 422 | 2066 | A | New | |
| 1/2″ | 501 | 2864 | A | Existing | |
| 1/2″ | 502 | 1972 | A | Existing | |
| 1/2″ | 502H | 1972 | A | Existing | |
| 1/2″ | 502HU | 1972 | A | Existing | |
| 1/2″ | 502G | 1972 | A | Existing | |
| 1/2″-3/4″ | 502HS | 1972 | A | Existing | |
| 1/2″ | 502T | 1972 | A | Existing | |
| 1/2″ | 502V | 4157 | A | New | Seat In |
| 1/2″ | 502V | 4337 | A | Existing | Integral Seat |
| 1/2″ | 502V-1 | 1972 | A | Existing | |
| 1/2″ | 503 | 1972 | A | Existing | |
| 1/2″ | 512 | 1998 | A | Existing | |
| 1/2″ | 512GB | 1998 | A | Existing | |
| 1/2″ | 512H | 1998 | A | Existing | |
| 1/2″ | 512HB | 1998 | A | Existing | |
| 1/2″ | 512LB | 1998 | A | Existing | |
| 1/2″ | 512RB | 1998 | A | Existing | |
| 1/2″ | 512S | 1998 | A | Existing | |
| 1/2″ | 512T | 1998 | A | Existing | |
| 3/4″ | 513 | 1998 | A | Existing | |
| 3/4″ | 513H | 1998 | A | Existing | |
| 3/4″ | 513G | 1998 | A | Existing | |
| 3/4″ | 513A | 1972 | A | Existing | |
| 1/2″X3/4″ | 5H | 1985 | A | Existing | |
| 1/2″ | H5S | 1982 | B | Existing | |
| 1/2″ | 5HR1 | 1998 | A | Existing | |
| 1/2″ | 5HRS | 1998 | A | Existing | |
| 1/2″ | 522 | 1985 | A | Existing | |
| 1/2″ | 522H | 1985 | A | Existing | |
| 1/2″ | 522HB | 1985 | A | Existing | |
| 1/2″ | 522G | 1985 | A | Existing | |
| 1/2″ | 522L | 1985 | A | Existing | |
| 1/2″ | 522R | 1985 | A | Existing | |
| 1/2″ | 522S | 1985 | A | Existing | |
| 1/2″ | 522T | 1985 | A | Existing | |
| 3/4″ | 523 | 1985 | A | Existing | |
| 3/4″ | 523H | 1985 | A | Existing | |
| 3/4″ | 523H1 | 1985 | A | Existing | |
| 3/4″ | 523G | 1985 | A | Existing | |
| 3/4″ | 523L | 1985 | A | Existing | |
| 3/4″ | 523R | 1985 | A | Existing | |
| 1″ | 524 | 1985 | A | Existing | |
| 1″ | 524AH | 4344 | B | Existing | |
| 3/4″ | 533H | 1982 | B | Existing | |
| 1″ | 534H | 1982 | B | Existing | |
| 1″ | 544H | 2053 | B | Existing | |
| 1 1/4″ | 545 | 2054 | B | Existing | |
| 1/2″ | 702 | 1972 | A | Existing | |
| 1/2″ | 702H | 1972 | A | Existing | |
| 1/2″ | 702HB | 1972 | A | Existing | |
| 1/2″ | 702GS | 1972 | A | Existing | |
| 1/2″ | 702V | 4157 | A | New | Seat In |
| 1/2″ | 702V-1 | 1972 | A | Existing | |
| 3/4″ | 703 | 1972 | A | Existing | |
| 1/2″ | 712 | 1764 | A | Existing | |
| 1/2″ | 712HB | 1764 | A | Existing | |
| 1/2″ | 712HB | 3575 | A | New | Seat In |
| 1/2″ | 712GS | 1764 | A | Existing | |
| 1/2″ | 712T | 1764 | A | Existing | |
| 3/4″ | 713A | 1972 | A | Existing | |
| 3/4″ | 713 | 3155 | A | Existing | |
| 3/4″ | 713HF | 3555 | A | New | Seat In |
| 3/4″ | 713HB | 3155 | A | Existing | |
| 3/4″ | 713HB | 3575 | A | New | Use w/seat In |
| 3/4″ | 713GB | 3155 | A | Existing | |
| 3/4″ | 713GB | 3575 | A | New | Use w/seat In |
| 1/2″ | 722 | 1997 | A | Existing | |
| 1/2″ | 722HB | 1997 | A | Existing | |
| 3/4″ | 723A | 1764 | A | Existing | |
| 3/4″ | 723 | 3150 | A | Existing | |
| 3/4″ | 723HB | 3150 | A | Existing | |
| 3/4″ | 723H1 | 3150 | A | Existing | |
| 3/4″ | 723G1 | 3150 | A | Existing | |
| 1″ | 724AH | 1764 | A | Existing | |
| 1″ | 724HB | 4122 | B | Existing | |
| 3/4″ | 733HB | 1991 | B | Existing | |
| 3/4″ | 733 | 1991 | B | Existing | |
| 1″ | 734 | 3191 | B | Existing | |
| 1″ | 744 | 2245 | B | Existing | |
| 1 1/4″ | 745 | 3058 | B | Existing | |
| 1/2″ | 726A | 1972 | A | Existing | |
| 3/4″ | 763A | 1972 | A | Existing | |
| 1″ | 764A | 1764 | A | Existing | |
| 3/8″ | 780 | 4324 | B | Threaded Existing | Use 4260 at 125 psi |
| 1/2″ | 781 | 4324 | B | Threaded Existing | Use 4276 at 125 psi |
| 1/2″ | 782 | 4327 | B | Bolted Existing | Use 4258 at 125 psi |
| 3/4″ | 783 | 2924 | B | Bolted Existing | Use 4258 at 125 psi |
| 1″ | 784 | 4344 | B | Bolted Existing | Use 4258 at 125 psi |
| 1/2″ | 902H | 4172 | A | New | |
| 1/2″ | 902A | 4172 | A | New | |
| 1/2″ | 902V-1 | 1972 | A | Existing | |
| 3/4″ | 903H1 | 1972 | A | Existing | |
| 3/4″ | 903HT | 1972 | A | Existing | |
| 3/4″ | 913H | 1972 | A | Existing | |
| 3/4″ | 913A | 1972 | A | Existing | |
| 1/2″ | 12C16 | 4096 | A | Existing | |
| 1/2″ | 12G4 | 1998 | A | Existing | |
| 1/2″ | 12H4 | 1998 | A | Existing | |
| 1/2″ | 12H5 | 1998 | A | Existing | |
| 1/2″ | 12H6 | 1998 | A | Existing | |
| 1/2″ | 12H7 | 1764 | A | Existing | |
| 1/2″ | 22G5 | 1797 | A | New | |
| 1/2″ | 22H5 | 1797 | A | New | |
| 1/2″ | 22RG5 | 1797 | A | New | |
| 1/2″ | 22H7 | 1997 | A | Existing | |
| 1/2″ | 2205 | 1985 | A | Existing | |
| 1/2″ | H | 1982 | B | Existing | |
| 1/2″ | 226-S | 1985 | A | Existing | |
| 3/4″ | 23H6S | 1985 | A | Existing | |
| 3/4″ | 23H5 | 1982 | B | Existing | |
| 3/4″ | 23G5 | 1982 | B | Existing | |
| 3/4″ | 23L5 | 1982 | B | Existing | |
| 3/4″ | 23R5 | 1982 | B | Existing | |
| 3/4″ | WM | 2109 | A | Existing | |
| 1/2″ | 4226 | 1998 | A | Existing | |
| 1/2″ | 5993 | 1998 | A | Existing | |
| 1/2″ | 613HB | 1998 | A | Existing | |
| 1/2″ | 6233 | 1998 | A | Existing | |
| 1/2″ | 6289 | 1972 | A | Existing | |
| 1/2″ | CR | 1797 | A | New | |
| 1/2″ | H7 | 1997 | A | Existing | |
| 1/2″ | GL | 1797 | A | New | Motor-Float 1″ Hex Seat |
| 1/2″ | GL | 3244 | A | Existing | Motor-Float 1/2″ Hex Seat |
| 1/2″ | G | 4033 | A | New | |
| 1″ | 44H5 | 2053 | B | Existing | |
| 3/4″ | 23G5 | 4252 | A | Existing | |
| 1/2″-3/4″ | 502 Adaptor | 4244 | A | Existing | |
| 1/2″ | 22H5 | 4190 | A | Existing | w/Hoffman cover |
| 3/4″ | DS | 1972 | A | Existing | (7) on cover |
| 3/4″ | 2DS-1 | 4440 | A | New | (7) on cover |
| 3/4″ | DS | 3271 | A | Existing | DS on cover |
| 1″ | DS | 3271 | A | Existing | DS on cover |
| 1/2″ | 502H | 4143 | A | New | Use w/seat in |
| 1/2″ | 512 | 4097 | A | Existing | Use w/seat in |
| 1/2″ | 522H | 3536 | A | Existing | Use w/seat in |
| 3/4″ | 23H63 | 3536 | A | Existing | Use w/seat in |
| 3/4″ | 533 | 3591 | A | Existing | Use w/seat in |
| 1″ | 544H | 3547 | B | Existing | Use w/seat in |
| 1/2″ | 702H | 4143 | A | New | Use w/seat in |
| 1/2″ | 702V | 4157 | A | New | Use w/seat in |
| 1/2″ | 702HF | 3429 | A | New | Use w/seat in |
| 1/2″ | 712 | 3575 | A | New | Use w/seat in |
| 3/4″ | 723H | 3436 | A | Existing | Use w/seat in |
| 1/2″ | 22LGS | 1985 | A | Existing | |
| 1/2″ | 22H7 | 3436 | A | Existing | Use w/seat in |
| 3/4″ | Nesbit | 4415 | B | New | Use w/seat in |
*Brand name DARLING in Canada.
WARREN WEBSTER THERMOSTATIC TRAP ADAPTERS
| Size | Model Number | B&J Cage Unit | Type | Cover | Notes |
| 1/2″ | 02A9 | None | |||
| 3/4″ | 02A12 | None | |||
| 3/4″ | 02A15 | 3556 | A | 2078-2 | |
| New | |||||
| 1/2″ | 02A17 | 3133 | A | New | |
| 1/2″ | 02A18 | 3596 | A | New | |
| 1/2″ | 02A24 | 4284 | A | New | |
| 1/2″ | 5A13 | 2066 | A | New | |
| 1″ | 5A15 | 3579 | A | New | |
| 1/2″ | 5A18 | 3251 | A | Existing | Pressed-in Seat |
| Sarco E-Body | |||||
| 1/2″ | 5A18 | 3530 | A | Existing | |
| 1/2″ | 5A24 | 4437 | A | Existing | Pressed in Seat-in |
| 1/2″ | 5A27 | 4231 | A | Existing | |
| 1/2″ | 5C15 | 4171 | A | Existing | |
| 1″ | 502A12 | 4269 | A | New | |
| 1/2″ | 502A17 | 4353 | A | Existing | |
| 1/2″ | 12A4 | 4192 | A | New | |
| 1/2″ | 12A24 | 4380 | A | Existing | |
| 1/2″ | 8446 | 4337 | A | Existing |
WARREN WEBSTER FLOAT & THERMOSTATIC
| Size | Model Number | B&J Cage Unit | Type | Cover | Notes |
| 3/4″ | 00026T | 3434 | A | New | |
| 1″ | 0026T | 3479 | A | Existing | |
| 1″ | 0026T | 4006 | A | Existing | Old Style Bolted Cover |
| 1 1/4″ | 026T | 3479 | A | Existing | |
| 1 1/4″ | 026T | 3046 | A | Existing | Old Style Bolted Cover |
| 3/4″ | 016TD-2 | 1764 | A | Existing | |
| 3/4″ | 019T | 4032 | A | New | |
| 1″ | 019T | 4032 | A | New | |
| 1 1/4″ | 119T | 1764 | A | Existing | |
| 1 1/2″ | 126T | 4032 | A | New | |
| 2″ | 226T | 4032 | A | New | |
| 1 1/4″ | 326T | 4032 | A | New | |
| 1 1/2″ | 276T | 4301 | A | Existing | |
| 2″ | 278T | 4301 | A | Existing | |
| 3/4″ | 00026 TD-1-2 | 3434 | A | New | |
| 1″ | 0026 TD-1-2 | 4006 | A | Existing | Bolted cover |
| 1″ | 0026 TD-1-2 | 3479 | A | Existing | Screwed cover |
| 1″ | 0026 TD-1-4 | 4113 | A | New | |
| 1″ | 0026 TD-1-4 | 4020 | A | New | Integral Seat |
| 1 1/4″ | 026 TD-1-2 TD-2-2 | 3046 | A | Existing | Bolted cover |
| 1 1/4″ | 026 TD-1-2 | 3479 | A | Existing | Screwed cover |
| 1 1/4″ | 026 TD-1-5 | 4278 | A | New | |
| 3/4″ | 016 TD-2 | 1764 | A | Existing | |
| 3/4″ | 273 | None | Complete Repair Kits available 1998 | ||
| 1″ | 274 | None | |||
| 1 1/4″ | 275 | None | |||
| 1 1/2″ | 276 | None | |||
| 2″ | 278 | None | |||
| 3/4″ | 83 | None | |||
| 1″ | 84 | None | |||
| 1 1/4″ | 85 | None |
WILEY (Simplex)
| Size | Model Number | B&J Cage Unit | Type | Cover | Notes |
| 1/2″ | None | 3143 | A | Existing | Seat In |
WILMOT – CASTLE
| Size | Model Number | B&J Cage Unit | Type | Cover | Notes |
| 3/8″ | Monel 4261 | C | Existing | ||
| 1/2″ | Monel 4258 | C | Existing | ||
| 3/4″ | Monel 4258 | C | Existing |
YARWAY
| Size | Model Number | B&J Cage Unit | Type | Cover | Notes |
| 1/2″ | 50-2 | 3834 | C | Existing | Seat In |
| 3/4″ | 50-3 | 3834 | C | Existing | Seat In |
| 1/2″ | R5LA | 3472 | A | Existing | |
| 1/2″ | R5LS | 3472 | A | Existing | |
| 3/4″ | R7LA | 3472 | A | Existing | |
| 3/4″ | R7LS | 3472 | A | Existing | |
| 1″ | FT-10L | 3472 | A | Existing | |
| 1 1/4″ | FT-12L | 3472 | A | Existing | |
| 1 1/2″ | FT-15L | 3472 | A | Existing | |
| 2″ | FT-20L | 3472 | A | Existing |
