BONDED SEALS

Bonded Seal (also known as Dowty Seal or Dowty Bonded Washer) represents a combination of metal washer and elastomer sealing lip vulcanised to the edge of the metal part to seal bolted connections and mounting elements in all industrial applications e.g. pipe connections and couplings. When the bolted connection is tightened, the sealing lip is pressed against the flat surfaces.

We produce all standard self-centering bonded seals, KDS bonded seals and can also supply Bonded Seal Kits in BSP and metric sizes or custom kits to suit customer requirements.

Materials For Bonded Seal
Middle Carbon Steel Zinc Plated
Nitrile (NBR)
Stainless Steel (SS304, SS316)
Viton (FKM, FKM)
Brass
EPDM
TYPICAL APPLICATIONS
Mobile Hydraulics
Hydraulic Cylinder Rebuild
Agricultural Hydraulics
Construction Equipment
Metric series, self centering
CNTSEALS REF Metric Thread Size Inside Diameter Outside Diameter Metal Metal Washer ID ID between self centering
Ref. Thickness
C A E B F
605 PPM5 5,7 9 1 6,8 4,9
606 PPM6 6,7 10 1 8 5,6
612 PPM8 8,7 13 1 10,4 6,4
617 PPM10 10,7 16 1,5 12,4 8,05
622 PPM12 12,7 18 1,5 14,1 9,73
627 PPM14 14,7 20 2 16,4 11,38
629 PPM16 16,7 22 2 18,4 13,41
632 PPM18 18,7 25 2 20,4 14,76
633 PPM20 20,7 28 2 22,5 16,76
636 PPM22 22,7 30 2 24,4 18,74
638 PPM24 24,7 32 2 26,4 20,11
640 PPM27 27,7 35 2 29,4 23,3
642 PPM30 30,7 38 2 32,4 25,7
643 PPM33 33,7 42 2 35,4 28,7
645 PPM36 36,7 46 2 38,7 31,1
646 PPM39 41,7 51 2 40 34,1
647 PPM42 42,7 53 2 45,7 38,7
649 PPM48 48,7 60 2 51,7 43,7
650 PPM52 52,7 66 2 56,4 48,2
651 PPM60 60,7 75 2 63 56,2
BSP series, self centering
CNT REF BSP Thread Size Inside Diameter Outside Diameter Metal Metal Washer ID ID between self centering
Ref. Thickness
C A E B F
820 1/8 BSP 10,37 15,88 2 11,84 8,26
821 1/4 BSP 13,74 20,57 2 15,21 11,18
823 3/8 BSP 17,28 23,8 2 18,75 14,76
825 1/2 BSP 21,54 28,58 2 23,01 18,24
826 5/8 BSP 23,49 31,75 2 34,97 20,6
827 3/4 BSP 27,05 34,93 2 28,53 23,83
829 7/8 BSP 30,81 38,1 2 32,29 27,89
830 1 BSP 33,89 42,8 3,2 36,88 29,92
832 1 1/4 BSP 42,93 52,38 3,2 45,93 38,45
833 1 1/2 BSP 48,44 58,6 3,2 51,39 44,45
836 2 BSP 60,58 73,03 3,2 63,63 56,26