Series B-3000

Boiler Expanders



Series B-3000 Boiler Expanders from Airetool

B-3000 Boiler Expander


Mandrels for Series B-3000 Boiler Expanders from Airetool

Short Series Mandrels


  Models

Series B-3000 Boiler Expanders

x = Tube Sheet Thickness
Refer to the Expander Table: Replace the X with the appropriate number

Drag your finger across the table to scroll

X Tube Sheet Thickness
in. mm
7 1/2 - 4-3/8 12.7 - 111.1
11 1-1/2 - 5-3/8 38.1 - 136.5

Drag your finger across the table to scroll

Tube Size Expander
Expander Number* O.D. Gauge O.D. Gauge Expansion Range Straight Roll Set* Mandrel Options
Long Mandrel Square Drive Short Mandrel ** Number
in. mm Number Length
B-3111-7 1-1/4 16     1.105-1.299 28.1-33.0 111-x-RS 118-M 15-27/32" 3/4 MS-1,2 ,3
B-3118-7 1-1/2 10-12     1.221-1.378 31.0-35.0 118-x-RS 118-M 15-27/32" 3/4 MS-1,2 ,3
B-3126-7 1-1/2 13-16     1.300-1.496 33.0-38.0 126-x-RS 126-M 16-31/64" 3/4 MS-2, 3, 4
B-3134-x 1-3/4 8-9 2 3 1.379-1.575 35.0-40.0 126-x-RS 134-M 16-31/64" 3/4 MS-2, 3, 4
B-3142-x 1-3/4 10-12 2 4-5 1.457-1.673 37.0-42.5 142-x-RS 150-M 17-3/32" 3/4 MS-3, 4, 5
B-3150-x 1-3/4 13-16 2 6 1.536-1.752 39.0-44.5 150-x-RS 150-M 17-3/32" 3/4 MS-3, 4, 5
B-3158-x 2 7-9 2-1/4 3 1.615-1.850 41.0-47.0 158-x-RS 174-M 18-3/32" 3/4 MS-4, 5, 6, 7, 8
B-3166-x 2 10-12 2-1/4 4-5 1.693-1.929 43.0-49.0 166-x-RS 174-M 18-3/32" 3/4 MS-4, 5, 6, 7, 8
B-3174-x 2 13-16 2-1/4 6 1.722-2.027 45.0-51.5 174-x-RS 174-M 18-3/32" 3/4 MS-4, 5, 6, 7, 8
B-3181-x 2 16 2-1/2 3 1.851-2.126 47.0-54.0 181-x-RS 197-M 20-15/32" 1 MS-7, 8, 9, 10, 11
B-3189-x 2-1/4 10-13 2-1/2 4-5 1.930-2.205 49.0-56.0 174-x-RS 197-M 20-15/32" 1 MS-7, 8, 9, 10, 11
B-3197-x 2-1/4 14-16 2-1/2 6 2.009-2.362 51.0-60.0 205-x-RS 197-M 20-15/32" 1 MS-6, 7, 8, 9, 10, 11
B-3205-x 2-1/2 7-10     2.087-2.441 53.0-62.0 205-x-RS 221-M 20-21/32" 1 MS-7, 8, 9, 10, 11, 12
B-3213-x 2-1/2 11-13 3 2 2.116-2.520 55.0-64.0 213-x-RS 221-M 20-21/32" 1 MS-7, 8, 9, 10, 11, 12
B-3221-x 2-1/2 14-16     2.245-2.598 57.0-66.0 221-x-RS 221-M 20-21/32" 1 MS-7, 8, 9, 10, 11, 12
B-3229-x 2-3/4 7-9     2.323-2.677 59.0-68.0 221-x-RS 244-M 20-1/2" 1 MS-8, 9, 10, 11, 12, 13
B-3237-x 2-3/4 10-12     2.402-2.756 61.0-70.0 237-x-RS 244-M 20-1/2" 1 MS-8, 9, 10, 11, 12, 13
B-3244-x 2-3/4 13-16     2.481-2.835 63.0-72.0 252-x-RS 244-M 20-1/2" 1 MS-8, 9, 10, 11, 12, 13
B-3252-x 3 7-8     2.560-2.913 65.0-74.0 252-x-RS 268-M 20-1/64" 1 MS-10, 11, 12, 13, 14
B-3260-x 3 10-12     2.638-2.992 67-.076.0 260-x-RS 268-M 20-1/64" 1 MS-10, 11, 12, 13, 14
B-3268-x 3 13-14     2.717-3.071 69.0-78.0 268-x-RS 268-M 20-1/64" 1 MS-10, 11, 12, 13, 14
B-3276-x 3 15-16     2.796-3.150 71.0-80.0 276-x-RS 300-M 20-1/2" 1 MS-12, 13, 14, 15, 16
B-3284-x 3-1/4 7-11     2.874-3.228 73.0-82.0 284-x-RS 300-M 20-1/2" 1 MS-12, 13, 14, 15, 16
B-3292-x 3-1/4 12-14     2.953-3.307 75.0-84.0 292-x-RS 300-M 20-1/2" 1 MS-12, 13, 14, 15, 16
B-3300-x 3-1/4 15-16 3-1/2 7-9 3.032-3.386 77.0-86.0 315-x-RS 300-M 20-1/2" 1 MS-12, 13, 14, 15, 16
B-3308-x 3-1/2 10-12     3.111-3.465 79.0-88.0 284-x-RS 347-M 22-15/32" 1 MS-15, 16, 17, 18, 19
B-3315-x 3-1/2 13-15     3.190-3.622 81.0-92.0 315-x-RS 347-M 22-15/32" 1 MS-14, 15, 16, 17, 18, 19
B-3323-x 3-1/2 16 3-3/4 7-8 3.268-3.701 83.0-94.0 323-x-RS 347-M 22-15/32" 1 MS-14, 15, 16, 17, 18, 19
B-3331-x 3-3/4 9-12     3.347-3.780 95.0-96.0 331-x-RS 347-M 22-15/32" 1 MS-14, 15, 16, 17, 18, 19
B-3339-x 3-3/4 13-16     3.426-3.858 87.0-98.0 355-x-RS 347-M 22-15/32" 1 MS-14, 15, 16, 17, 18, 19
B-3347-x 4 7-8     3.505-3.937 89.0-100.0 363-x-RS 347-M 22-15/32" 1 MS-14, 15, 16, 17, 18, 19
B-3355-x 4 9-12     3.583-4.016 91.0-102.0 355-x-RS 394-M 22-33/64" 1 MS-17, 18, 19, 20, 21
B-3363-x 4 13-15     3.662-4.094 93.0-104.0 363-x-RS 394-M 22-33/64" 1 MS-17, 18, 19, 20, 21
B-3370-x 4 16 4-1/4 7-8 3.741-4.173 95.0-106.0 370-x-RS 394-M 22-33/64" 1 MS-17, 18, 19, 20, 21
B-3378-x 4-1/4 9-11     3.820-4.252 97.0-108.0 378-x-RS 394-M 22-33/64" 1 MS-17, 18, 19, 20, 21
B-3386-x 4-1/4 12-16     3.898-4.331 99.0-110.0 386-x-RS 394-M 22-33/64" 1 MS-17, 18, 19, 20, 21
B-3394-x 4-1/2 7-14     3.997-4.407 101.5-111.9 394-x-RS 394-M 22-33/64" 1 MS-17, 18, 19, 20, 21

(Mandrels Sold Separately)

* x Signifies tube sheet thickness

** Note: Short Mandrel lengths: MPS-1 thru MPS-10 = 7" (177.8mm), MPS-11 thru MPS-16 = 8" (203.2mm), MPS-17 thru MPS-21 = 9" (228.1mm)


Boiler Expander Model Numbers & Ordering Numbers

Drag your finger across the table to scroll

Model Number Order Number
B-2181-3  
B-2181-5  
B-2181-7  
B-2181-9 5523784
B-2181-11 5523785
B-2189-3 5522452
B-2189-5  
B-2189-7  
B-2189-9  
B-2189-11  
B-2197-3 5525873
B-2197-5  
B-2197-7  
B-2197-9  
B-2197-11  
B-2205-3  
B-2205-5  
B-2205-7 5521986
B-2205-9 5521987
B-2205-11 5521988
B-2213-3 5521989
B-2213-5 5521990
B-2213-7 5522498
B-2213-9 5522499
B-2213-11 5522200
B-2221-3 5521991
B-2221-5 5522812
B-2221-7  
B-2221-9  
B-2221-11  
B-2229-3  
B-2229-5  
B-2229-7  
B-2229-9 5525606
B-2229-11  
B-2237-3  
B-2237-5  
B-2237-7  
B-2237-9  
B-2237-11 5524444PT
B-2244-3  
B-2244-5  
B-2244-7  
B-2244-9  
B-2244-11 5521992
B-2252-3  
B-2252-5  
B-2252-7 5523089
B-2252-9 5521994
B-2252-11 5522293
B-2260-3 5521995
B-2260-5 5523357PT
B-2260-7 5524223
B-2260-9 5525158
B-2260-11 5522294
B-2268-3  
B-2268-5  
B-2268-7  
B-2268-9  
B-2268-11  
B-2276-3  
B-2276-5 5523087
B-2276-7  
B-2276-9  
B-2276-11  
B-2284-3  
B-2284-5  
B-2284-7  
B-2284-9 5525237
B-2284-11  
B-2292-3  
B-2292-5  
B-2292-7  
B-2292-9  
B-2292-11  
B-2300-3  
B-2300-5  
B-2300-7  
B-2300-9  
B-2300-11  
B-2308-3 5525607
B-2308-5  
B-2308-7  
B-2308-9  
B-2308-11 5526011
B-2315-3  
B-2315-5  
B-2315-7  
B-2315-9  
B-2315-11  
B-2323-3 5525510
B-2323-5 5525498
B-2323-7  
B-2323-9  
B-2323-11 5523775
B-2331-3  
B-2331-5  
B-2331-7 5525050
B-2331-9  
B-2331-11  
B-2339-3  
B-2339-5  
B-2339-7  
B-2339-9  
B-2339-11 5522544
B-2347-3  
B-2347-5  
B-2347-7 5523730
B-2347-9  
B-2347-11 5522240
B-2355-3  
B-2355-5  
B-2355-7 5524219
B-2355-9  
B-2355-11  
B-2363-3  
B-2363-5  
B-2363-7  
B-2363-9  
B-2363-11  
B-2370-3  
B-2370-5  
B-2370-7  
B-2370-9  
B-2370-11  
B-2378-3  
B-2378-5  
B-2378-7  
B-2378-9  
B-2378-11  
B-2386-3  
B-2386-5  
B-2386-7  
B-2386-9  
B-2386-11  
B-2394-3 5526218
B-2394-5  
B-2394-7  
B-2394-9  
B-2394-11 5525608
B-3111-7 5522000
B-3118-7 5522001
B-3126-7 5522002PT
B-3134-7 5522206
B-3134-11  
B-3142-7 5522003
B-3142-11 5522004
B-3150-7 5522005
B-3150-11 5521861
B-3158-7 5522006
B-3158-11 5522007
B-3166-7 5522008
B-3166-11 5522009
B-3174-7 5521692
B-3174-11 5522010
B-3181-7 5522918
B-3181-11  
B-3189-7  
B-3189-11 5523691
B-3197-7 5522318PT
B-3197-11 5522032
B-3205-7 5522011PT
B-3205-11 5522012
B-3213-7 5522260
B-3213-11 5522121
B-3221-7 5522098
B-3221-11 5522099
B-3229-7 5522869
B-3229-11 5525863
B-3237-7 5522013
B-3237-11 5522014
B-3244-7 5522787
B-3244-11 5522425
B-3252-7 5521893
B-3252-11 5522015
B-3260-7 5521894
B-3260-11 5522292
B-3268-7 5524157
B-3268-11 5523193
B-3276-7 5522407PT
B-3276-11 5523194
B-3284-7 5523026
B-3284-11  
B-3292-7 5524448
B-3292-11  
B-3300-7 5526349
B-3300-11  
B-3308-7  
B-3308-11  
B-3315-7 5523710
B-3315-11  
B-3323-7 5523763
B-3323-11  
B-3331-7 5523220
B-3331-11 5525197
B-3339-7  
B-3339-11 5522269
B-3347-7 5522319
B-3347-11 5523311PT
B-3355-7 5524218
B-3355-11  
B-3363-7 5522111
B-3363-11  
B-3370-7 5522020
B-3370-11  
B-3378-7  
B-3378-11 5526556PT
B-3386-7  
B-3386-11  
B-3394-7 5522427
B-3394-11 5524626

Mandrel Model Numbers & Ordering Numbers

Drag your finger across the table to scroll

Model Number Order Number
83-M  
91-M 2995063
99-M 2995057
118-M 2993819
126-M 2993820
134-M 2902805
150-M 2993821
174-M 2993545
197-M 2994636
221-M 2993822
244-M 2993823
268-M 2993824
300-M 2994303
347-M 2994235
394-M 2994208
83-MP 2993831
91-MP 2995080
99-MP 2993832
118-MP 2993833
126-MP 2994714
134-MP 2994065
150-MP 2993834
174-MP 2993835
197-MP 2994196
221-MP 293836
244-MP 2993837
268-MP 2993838
300-MP 2994133
347-MP 2994675
394-MP 2994321
MPS-1 2994289
MPS-2 2994290
MPS-3 2994070
MPS-4 2994071
MPS-5 2994072
MPS-6 2994073
MPS-7 2994074
MPS-8 2994075
MPS-9 2994192
MPS-10 2994193
MPS-11 2994194
MPS-12 2994293
MPS-13 2994294
MPS-14 2994295
MPS-15 2994296
MPS-16 2994297
MPS-17 2994298
MPS-18 2994299
MPS-19 2994300
MPS-20 2994301
MPS-21 2994302

  Features

Series B-3000 Boiler Expanders

  • Straight roll expander for non-flare tube rolling
  • Use in conjunction with B-1000 & B-2000 expanders for thicker tube sheet applications
  • Convertible to B-2000 series

  Dimensions

Series B-3000 Boiler Expanders

Drawing showing the dimensions of a Series B-3000 Boiler Expander from Airetool

Drag your finger across the table to scroll

X "A" Dimension "B" Dimension
in. mm in. mm
7 2-7/16 61.9 2-1/16 52.3
11 3-7/16 87.3 3-1/16 77.7

  Contact mdi

Please fill out the form below and your personal mdi product expert will email you your quote. The more information that you provide the quicker we can send you a quote. Sending an incomplete quote request could mean that we have to contact you for necessary information before sending your quote. And know that our knowledgeable sales staff is standing by to help you with your order and with any questions.

In a rush? Use our Quick Contact form to get in touch with us fast!

If you have about five minutes to spare, though, you can save time on the quoting process by filling out the form below.






Please include your contact information so that we may reply to your request. Your contact information is private and will not be sold to any third party or used negatively in any way.







mdi does not advertise prices online. The cost of products is subject to change over time. In order to extend to you the best price that we can offer, we prefer to create written and emailed quotes which reflect any discounts or promotions currently available. Some products can be quoted over the phone, and expediting quotes and orders is always available per request.

See our Terms and Conditions for more information about the mdi sales process.


Call us any time Monday through Friday 7:30 AM to 5:30 PM ET.

Phone: (813) 241-4900 | Toll Free: 800-761-4298
Fax: (813) 571-0422 | Email or Fill Out the Form Above