Bonded Seals Supplier- Auter Sealing Solutions

Bonded Seal (Dowty Seal)

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.

APPLICATIONS

Bonded seal is applicable to all threaded bolts, studs and clearance holes. With large range of elastomers and metals available, it can works in wide temperature range.

It can be automatically installed. Metal washer with vulcanised sealing body of rubber for sealing of bolt heads and flanges.

BENEFITS

Cost effective solution for bolt/thread sealing

Sealing washers are available for metric and BSP threads

Large range of elastomers and metals available

Concentrically located

Ease of assembly

Typical applications for bonded seal include:

Mobile Hydraulics
Hydraulic Cylinder Rebuild
Agricultural Hydraulics
Construction Equipment
Hydraulic Presses
Injection Molding Machines

Materials for bonded seal include:

Middle carbon steel zinc plated
Nitrile(NBR)
Stainless steel(SS304, SS316, etc.)
Viton(FKM, FPM)
Brass
EPDM

We stocked below Metric and BSP bonded seals, all in self centering NBR lip with steel washer.

Metric series, self centering
Auter Ref.	Metric Thread Size	Inside Diameter	Outside Diameter	Metal Thickness	Metal Washer ID	ID between self centering
		C	A	E	B	F
605	PPM5	5.70	9.00	1.00	6.80	4.90
606	PPM6	6.70	10.00	1.00	8.00	5.60
612	PPM8	8.70	13.00	1.00	10.40	6.40
617	PPM10	10.70	16.00	1.50	12.40	8.05
622	PPM12	12.70	18.00	1.50	14.10	9.73
627	PPM14	14.70	20.00	1.50	16.40	11.38
629	PPM16	16.70	22.00	1.50	18.40	13.41
632	PPM18	18.70	25.00	1.50	20.40	14.76
633	PPM20	20.70	28.00	1.50	22.50	16.76
636	PPM22	22.70	30.00	2.00	24.40	18.74
638	PPM24	24.70	32.00	2.00	26.40	20.11
640	PPM27	27.70	35.00	2.00	29.40	23.30
642	PPM30	30.70	38.00	2.00	32.40	25.70
643	PPM33	33.70	42.00	2.00	35.40	28.70
645	PPM36	36.70	46.00	2.00	38.70	31.10
646	PPM39	41.70	51.00	2.00	40.00	34.10
647	PPM42	42.70	53.00	2.00	45.70	38.70
649	PPM48	48.70	60.00	2.00	51.70	43.70
650	PPM52	52.70	66.00	2.00	56.40	48.20
651	PPM60	60.70	75.00	2.00	63.00	56.20
BSP series, self centering
Auter Ref.	BSP Thread Size	Inside Diameter	Outside Diameter	Metal Thickness	Metal Washer ID	ID between self centering
		C	A	E	B	F
820	1/8 BSP	10,37	15,88	2,00	11,84	8,26
821	1/4 BSP	13,74	20,57	2,00	15,21	11,18
823	3/8 BSP	17,28	23,80	2,00	18,75	14,76
825	1/2 BSP	21,54	28,58	2,00	23,01	18,24
826	5/8 BSP	23,49	31,75	2,00	34,97	20,60
827	3/4 BSP	27,05	34,93	2,00	28,53	23,83
829	7/8 BSP	30,81	38,10	2,00	32,29	27,89
830	1 BSP	33,89	42,80	3,20	36,88	29,92
832	1 1/4 BSP	42,93	52,38	3,20	45,93	38,45
833	1 1/2 BSP	48,44	58,60	3,20	51,39	44,45
836	2 BSP	60,58	73,03	3,20	63,63	56,26

KDS Bonded Seal

Type KDS bonded seal is know as bonded seal for banjo fittings from parker, we developed all KDS series from M10/G1/8A to M48/G1 1/2A. Please find the details in the below table.

Profile	Thread size	Inside Diameter	ID Between Centering	Metal Washer ID	Outside Diameter	Metal Thickness	Total Thickness
KDS-L	M10-G1/8	10.30	8.30	13.10	16.00	2.50	3.30
KDS-L	M12	12.30	10.30	15.10	18.00	3.00	4.00
KDS-L	M14-G1/4	14.30	12.30	17.10	20.00	3.00	4.00
KDS-L	M16-G3/8	17.00	15.00	19.80	24.00	3.00	4.00
KDS-I	M18	18.30	16.30	21.10	23.90	3.00	4.00
KDS-L	M22-G1/2	22.30	20.30	25.10	30.00	4.50	5.50
KDS-L	M26	26.30	24.00	29.40	35.00	3.50	4.50
KDS-L	M27-G3/4	27.30	25.00	30.40	38.00	3.50	4.50
KDS-L	M33-G1	33.60	31.40	37.30	42.00	3.50	4.80
KDS-I	M42-G1.1/4	42.40	40.40	46.70	49.90	3.50	4.80
KDS-L	M48-G1.1/2	48.40	46.40	52.70	60.00	3.50	4.80