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Bonded Seals

The Bonded Seal was originally designed to replace copper type washers in high-pressure systems.

The Bonded Seal comprises a metal washer and an elastomeric ring bonded inside the diameter. The metal washer prevents over-compression and limits deformation of the elastomeric ring.

Advantages

  • Reliable low and high pressure sealing
  • High and low temperature capabilities
  • Bolt torque is reduced with no loss of tightening load

Materials

Elastomer component is available in NBR 70 (standard)
and (special order materials) NBR 90, FKM (viton ®) 70 & 75 Shore A, EPDM 75 Shore A

Washer component is carbon steel, zinc/yellow zinc plated or stainless steel (on request).

  click here for a 'request for quotation' form  Use Our Secure Order Form   click here for faxable order forms
How to order: Please prefix the BONDED SEAL part number with 'R008-'    example: R008-BS400-003

BONDED SEALS
Preferred Series - metric dimensions
Metric Thread   Inside Diameter Outside Diameter Metal thickness Spot face diameter Clearance hole diameter Part Number
    ID AD t d3 H13 d4  
M2.5   3,10 6,40 1,00 6,70 2,70 BSM000031
M2.5   3,10 6,40 1,30 6,70 2,70 BSM100031
M3   3,60 7,50 1,00 7,63 3,20 BS400-301
M3   4,10 7,00 1,00 7,30 3,20 BSM000041
M3 (M3.5)   4,10 7,20 1,00 7,50 (7,35) 3,20 (3,70) BS400-201
M4   4,50 7,00 1,00 7,35 (7,15) 4,20 BS400-202
M4   4,60 9,00 1,00 9,30 (9,13) 4,30 (4,20) BS400-302
M4   4,90 8,60 1,00 8,90 4,30 BSM000049
M5   5,60 10,00 1,00 10,13 5,20 BS400-303
M5   5,70 9,00 1,00 9,30 (9,15) 5,30 (5,20) BS400-203
M5   5,70 9,20 1,00 9,50 5,30 BSM100057
M5   5,70 10,00 1,00 10,30 (10,15) 5,30 (5,20) BS400-204
M5 (M5.5)   6,20 9,20 1,00 9,50 (9,35) 5,30 (5,70) BS400-205
M6   6,60 11,00 1,00 11,13 6,20 BS400-304
M6   6,70 10,00 1,00 10,30 (10,15) 6,40 (6,20) BS400-206
M6   6,70 11,00 1,00 11,30 (11,15) 6,40 (6,20) BS400-207
M6   6,70 11,00 2,50 11,35 (11,15) 6,40 (6,20) BS400-208
M6   6,85 13,27 1,30 13,40 6,20 BS400-305
M6   6,90 13,20 1,30 13,50 6,40 BSM000069
M6   7,00 11,40 1,00 11,53 6,20 BS400-306
M6   7,00 13,40 1,30 13,70 6,40 BSM000070
M6 (M6.5)   7,10 12,00 1,00 12,30 (12,15) 6,40 (6,70) BS400-209
M6 (M6.7)   7,30 10,20 1,00 10,50 (10,35) 6,40 (6,90) BS400-210
M6 (M8)   8,50 13,40 1,00 13,70 (13,55) 6,40 (8,20) BS400-211
M8   8,60 13,00 1,00 13,13 8,20 BS400-307
M8   8,70 13,00 1,00 13,30 (13,15) 8,40 (8,20) BS400-212
M8   8,70 14,00 1,00 14,30 (14,15) 8,40 (8,20) BS400-213
M8   8,70 14,20 1,30 14,50 8,40 BSM200087
M8   8,70 16,00 1,00 16,30 (16,15) 8,40 (8,20) BS400-214
M8 (M8.5)   9,30 13,30 1,00 13,60 (13,45) 8,40 (8,70) BS400-215
M10   10,35 16,00 2,00 16,17 9,95 BS400-216
M8 (M10)   10,70 16,00 1,50 16,30 (16,15) 8,40 (10,20) BS400-217
M10   10,70 17,00 1,50 17,13 10,20 BS400-310
M8 (M10)   10,70 18,00 1,50 18,30 (18,15) 8,40 (10,20) BS400-218
M10 (M11)   11,40 16,30 1,50 16,60 (16,45) 10,50 (11,20) BS400-219
M11   11,80 18,10 1,50 18,23 11,20 BS400-312
M10 (M11)   11,80 18,50 1,50 18,80 (18,65) 10,50 (11,20) BS400-220
M10 (M11)   11,80 19,10 1,50 19,40 (19,25) 10,50 (11,20) BS400-221
M10 (M12)   12,70 18,00 1,50 18,30 (18,15) 10,50 (12,20) BS400-222
M12   12,70 19,00 1,50 19,13 12,20 BS400-313
M10 (M12)   12,70 20,00 1,50 20,30 (20,15) 10,50 (12,20) BS400-223
M12 (M13)   13,70 20,00 1,50 20,30 (20,15) 13,00 (13,20) BS400-224
M12   13,70 20,60 2,10 20,90 13,00 BSM100137
M12 (M13)   13,70 22,00 1,50 22,30 (22,15) 13,00 (13,20) BS400-225
M12   13,70 22,20 1,59 22,50 13,00 BSM300137
M13   13,80 20,10 1,50 20,23 13,20 BS400-315
M12 (M13.5)   14,00 18,70 1,50 19,00 (18,85) 13,00 ( 13,70) BS400-226
M14   14,70 21,00 1,50 21,13 14,20 BS400-316
M12 (M14)   14,70 22,00 1,50 22,30 (22,15) 13,00 (14,20) BS400-227
M12   14,90 22,30 2,10 22,60 13,00 BSM000149
M14 (M15)   16,00 22,70 1,50 23,00 (22,85) 15,00 (15,20) BS400-228
M14   16,50 25,50 2,10 25,80 15,00 BSM000165
M16   16,70 23,00 1,50 23,13 16,20 BS400-317
M14 (M16)   16,70 24,00 1,50 24,30 (24,15) 15,00 (16,20) BS400-229
M16.5   17,20 23,90 2,10 24,03 16,70 BS400-319
M17   17,40 23,70 1,50 23,83 17,20 BS400-318
M14 (M17)   17,40 24,00 1,50 24,30 (24,15) 15,00 (17,20) BS400-230
M14   17,40 24,00 2,00 24,30 15,00 BSM100174
M16 (M17.5)   18,00 24,70 1,50 25,00 (24,85) 17,00 (17,70) BS400-231
M16   18,20 25,40 2,50 25,70 17,00 BSM000182
M16 (M18)   18,70 26,00 1,50 26,30 (26,15) 17,00 (18,20) BS400-232
M18   18,70 27,00 2,00 27,13 18,20 BS400-320
M18 (M20)   20,70 28,00 1,50 28,30 (28,15) 19,00 (20,20) BS400-233
M20   20,70 29,00 2,00 29,13 20,20 BS400-321
M18 (M21)   21,50 28,70 2,50 29,00 (28,85) 19,00 (21,20) BS400-234
M21   21,70 30,00 2,00 30,13 21,20 BS400-323
M20 (M22)   22,50 28,00 1,50 28,30 (28,15) 21,00 (22,20) BS400-235
M20 (M22)   22,70 30,00 2,00 30,30 (30,15) 21,00 (22,20) BS400-236
M20 (M22)   22,70 30,00 3,00 30,30 (30,15) 21,00 (22,20) BS400-237
M20 (M22)   22,70 31,00 2,00 31,13 22,20 BS400-324
M23   23,70 32,00 2,00 32,13 23,20 BS400-325
M20 (M24)   24,70 32,00 2,00 32,30 (32,15) 21,00 (24,20) BS400-238
M24   24,70 33,00 2,00 33,13 24,20 BS400-326
M22   26,70 35,00 2,00 35,30 23,00 BSM000267
M24   27,00 35,00 2,50 35,30 25,00 BSM000270
M26   27,00 35,30 2,00 35,43 26,20 BS400-327
M24 (M27)   27,20 36,00 2,00 36,30 (36,15) 25,00 (27,20) BS400-240
M27   27,70 36,00 2,00 36,13 27,20 BS400-328
M28   28,60 36,00 2,00 36,13 28,20 BS400-329
M24   28,70 37,00 2,00 37,30 25,00 BSM000287
M28.5   29,20 37,50 2,00 37,63 28,70 BS400-330
M30   30,70 39,00 2,00 39,13 30,20 BS400-331
M27 (M30)   31,00 39,00 2,00 39,30 (39,15) 28,00 (30,20) BS400-242
M27 (M33)   33,70 42,00 2,00 42,30 (42,15; 42,13) 28,00 (33,20) BS400-332**
M27 (M33)   33,70 42,00 2,00 42,30 (42,15; 42,13) 28,00 (33,20) BS400-243**
M27   33,90 42,80 3,25 43,10 28,00 BSM000339
M27   33,90 42,90 3,40 43,20 28,00 BSM100339
M30 (M33)   34,30 43,00 2,00 43,30 (43,15) 31,00 (33,20) BS400-244
M30 (M36)   36,70 46,00 2,00 46,30 (46,15) 31,00 (36,20) BS400-245
M36   37,00 48,00 2,50 48,13 36,20 BS400-333
M36 (M39)   40,00 51,00 2,50 51,30 (51,15) 37,00 (39,20) BS400-246
M39   40,00 51,00 2,50 51,13 39,20 BS400-334
M36 (M42)   42,70 53,00 3,00 53,30 (53,15) 37,00 (42,20) BS400-247
M42   43,00 54,00 2,50 54,13 42,20 BS400-335
M45   46,00 57,00 2,50 57,13 45,20 BS400-336
M36 (M48)   48,70 59,00 3,00 59,30 (59,15) 37,00 (48,20) BS400-248
M48   49,00 60,00 2,50 60,13 48,20 BS400-337
M42   51,70 63,50 3,25 63,80 43,00 BSM000517
M42 (M51)   52,00 60,00 3,00 60,30 (60,15) 43,00 (51,20) BS400-249
M48 (M52)   53,30 64,50 3,00 64,80 (64,65) 50,00 (52,20) BS400-250
M48 (M60)   60,70 73,00 3,00 73,30 (73,15) 50,00 (60,20) BS400-251
M68   68,60 79,50 3,50 79,65 68,20 BS400-252
M75   76,10 90,30 3,38 90,45 75,20 BS400-253
M64   76,10 90,30 3,40 90,60 66,00 BSM000761
M88   89,09 101,48 3,25 101,63 88,20 BS400-254
M125   127,00 143,67 5,00 143,82 125,20 BS400-255
              ** same size
Deliverable Dimensions: Dowty Ref No. BS400-2… Metric measurement range by German standards
Deliverable Dimensions: Dowty Ref No. BS400-3… Metric measurement range by French standards

for BA/BS../UN.. Inch thread size BSP thread Inside Diameter Outside Diameter Metal thick-ness Spot face diameter Clearance hole diameter Part Number
    ID AD t d3 H13 d4  
6BA   3,05 6,35 1,22 6,48 2,79 BS400-001
1/8   3,70 8,05 1,04 8,30 3,50 BSW200005
9/64   4,00 8,38 1,04 8,70 3,90 BSW200006
4BA   4,12 7,26 1,22 7,39 3,60 BS400-002
5/32   4,70 9,29 1,04 9,60 4,50 BSW200008
2BA   5,21 8,38 1,22 8,51 4,69 BS400-003
3/16   5,60 10,79 1,37 11,10 5,40 BSW200190
7/32   6,20 11,55 1,37 11,90 6,00 BSW200216
1/4   6,86 13,21 1,22 13,34 6,34 BS400-004
1/4   6,99 13,34 1,22 13,47 6,35 BS400-005
1/4   7,10 13,18 1,37 13,50 7,00 BSW200250
5/16   8,31 13,34 1,22 13,47 7,93 BS400-006
5/16   8,64 14,22 1,22 14,35 7,94 BS400-007
5/16   8,70 15,16 1,37 15,50 8,50 BSW200312
3/8   10,30 17,52 1,37 17,80 10,20 BSW200375
3/8 1/8 10,37 15,88 2,00 16,01 9,53 BS400-020
40   11,26 18,36 2,00 18,49 10,16 BS400-008
7/16   11,69 19,05 2,00 19,18 11,11 BS400-009
7/16   11,90 19,53 1,90 19,80 11,70 BSW200437
1/2   13,70 22,30 1,90 22,50 13,50 BSW200500
1/2 1/4 13,74 20,57 2,00 20,70 12,70 BS400-021
9/16   14,86 22,23 2,00 22,36 14,28 BS400-010
9/16   15,30 24,68 1,90 25,00 15,00 BSW200562
60   15,83 22,23 2,00 22,36 15,23 BS400-022
5/8   16,52 25,40 2,00 25,53 15,88 BS400-011
5/8   16,90 27,05 1,90 27,30 16,80 BSW200625
  3/8 17,28 23,80 2,00 23,93 16,64 BS400-023
11/16   18,16 25,40 2,34 25,53 17,46 BS400-012
11/16   18,50 29,43 2,28 29,70 18,20 BSW200687
3/4   19,69 26,92 2,34 27,05 19,05 BS400-024
3/4   20,30 32,23 2,28 32,50 20,00 BSW200750
13/16 1/2 21,54 28,58 2,34 28,71 20,64 BS400-025
13/16   21,90 34,59 2,28 34,90 21,50 BSW200812
7/8 5/8 23,49 31,75 2,34 31,88 22,23 BS400-026
7/8   23,50 36,98 2,28 37,30 23,20 BSW200875
15/16   24,26 33,27 2,34 33,40 23,80 BS400-013
15/16   25,10 38,96 2,28 39,30 24,80 BSW200937
1   26,70 42,13 2,28 42,40 26,50 BSW201000
1 3/4 27,05 34,93 2,34 35,06 25,41 BS400-027
1 1/16   27,82 38,61 2,34 38,74 27,00 BS400-028
1 1/8   29,33 36,58 2,34 36,71 28,57 BS400-014
1 1/8   29,80 46,91 2,28 47,30 29,50 BSW201125
1 3/16 7/8 30,81 38,10 2,34 38,23 30,15 BS400-029
1 1/4   32,64 41,40 3,25 41,53 31,74 BS400-015
1 1/4   33,00 51,28 3,40 51,40 32,80 BSW201250
15/16 1 33,89 42,80 2,34 42,93 33,33 BS400-031
15/16 1 33,89 42,80 3,25 42,93 33,33 BS400-030
1 3/8   35,94 44,45 3,25 44,58 34,92 BS400-016
1 1/2   38,96 47,75 3,25 47,88 38,10 BS400-017
1 1/2   39,50 58,93 3,40 58,30 39,00 BSW201500
1 5/8 1 1/4 42,93 52,38 3,25 52,51 41,29 BS400-032
1 3/4   45,34 57,15 3,25 57,28 44,44 BS400-018
1 7/8 1 1/2 48,44 58,60 3,25 58,73 47,64 BS400-033
2   51,69 63,50 3,25 63,63 50,79 BS400-019
2 1/8 1 3/4 54,89 69,85 3,25 69,98 53,99 BS400-034
2 1/4   58,04 70,36 3,25 70,49 57,14 BS400-035
  2 60,58 73,03 3,25 73,16 59,62 BS400-036
2 1/2   64,39 77,72 3,25 77,85 63,49 BS400-037
  2 1/4 66,68 79,50 3,25 79,63 65,50 BS400-038
  2 1/2 76,08 90,17 3,25 90,30 75,18 BS400-039
               
GM500 Deliverable Dimensions for pipe joints and couplings to ISO 1179 (CETOP RP.CH)
for BSP thread size   Inside Diameter Outside Diameter Metal thick-ness Spot face diameter   Part Number
    ID +0,2 AD -0,2 t 0,15 d3 +0,4    
1/16   8,30 12,70 1,25 13   BS400-519
1/8   10,40 14,70 1,25 15   BS400-510
1/4   13,85 18,70 1,25 19   BS400-511
3/8   17,35 22,70 1,25 23   BS400-512
1/2   21,65 26,70 1,25 27   BS400-513
3/4   27,30 32,50 1,25 33   BS400-514
1   34,20 39,50 2,00 40   BS400-515
1 1/4   42,80 49,50 2,00 50   BS400-516
1 1/2   48,70 55,50 2,00 56   BS400-517
2   60,50 68,50 2,00 69   BS400-518
Note: Part Numbers beginning with ’BSM’ or ’BSW’ are USIT sizes, Part Numbers beginning with ’BS’ are DOWTY sizes

BONDED SEALS SELF CENTERING    
GM 500 Dimensional series: metric series, self centering
for Metric Thread size   Inside Diameter Outside Diameter Metal thick-ness Metal washer ID ID between self centering seal Part Number
    ID AD t d3 dN  
M4   4,50 7,00 1,00 5,40 3,30 BS500-8045
M5   5,70 10,00 1,00 7,40 4,45 BS500-8057
M6   6,70 10,00 1,00 8,00 5,60 BS500-8067
M8   8,70 14,00 1,00 10,40 6,40 BS500-866
M10   10,70 16,00 1,50 12,40 8,05 BS500-708
M12   12,70 19,00 1,50 14,10 9,73 BS500-867
M14   14,70 22,00 1,50 16,40 11,38 BS500-868
M16   16,70 24,00 1,50 18,40 13,41 BS500-870
M18   18,70 26,00 1,50 20,40 14,76 BS500-872
M20   20,70 28,00 1,50 22,50 16,76 BS500-873
M22   22,70 30,00 2,00 24,40 18,74 BS500-874
M24   24,70 32,00 2,00 26,40 20,11 BS500-875

Dimensional series: BSP, self centering
for BSP thread size   Inside Diameter Outside Diameter Metal thick-ness Metal washer ID ID between self centering seal Part Number
    ID AD t d3 dN  
BSP 1/8   10,37 15,88 2,00 11,84 8,26 BS800-020
BSP 1/4   13,74 20,57 2,00 15,21 11,18 BS800-021
BSP 5/8   16,51 25,40 2,00 18,75 12,90 BS800-069
BSP 3/8   17,28 23,80 2,00 18,75 14,76 BS800-023
BSP 11/16   18,16 25,40 2,40 19,69 14,50 BS800-071
BSP 1/2   21,54 28,58 2,47 23,01 18,24 BS800-025
BSP 5/8   27,05 34,93 2,47 28,53 23,83 BS800-027
BSP 3/4   27,05 34,93 2,47 28,53 23,83 BS800-027
BSP 7/8   30,81 38,10 2,47 32,29 27,51 BS800-029
BSP 1   33,89 42,80 3,40 36,88 29,92 BS800-030
BSP 1 1/4   42,93 52,38 3,40 45,93 38,45 BS800-032
BSP 1 1/2   48,44 58,60 3,40 51,39 44,45 BS800-033
BSP 1 3/4   54,89 69,85 3,40 58,30 50,42 BS800-034
BSP 2   60,58 73,03 3,40 63,63 56,26 BS800-036
BSP 2 1/4   66,68 79,50 3,40 69,98 62,36 BS800-038
BSP 2 1/2   76,08 90,17 3,40 79,38 71,50 BS800-039

This revision changes many part numbers. Click for a comparison chart.

  click here for a 'request for quotation' form  Use Our Secure Order Form   click here for faxable order forms
How to order: Please prefix the BONDED SEAL part number with 'R008-'    example: R008-BS400-003
Note: Some sizes will have factory minimum order quantity requirements.

Phones: (800) 638-1830 or (410) 358-3130 are available Monday-Friday 8:30 AM to 5:30 PM Eastern time.
Faxes: (800) 872-9329 or (410) 358-3142 & E-mail are available anytime.
Warehouse & showroom hours are Monday-Friday 10 AM to 5:30 PM.
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