DMS Seals - Hydraulic Seals and Oil Ring Seals Manufacturer & Supplier

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Leakproof Bonded Sealing Washers Stainless Steel Bonded Dowty Seal Kit

Leakproof Bonded Sealing Washers Stainless Steel Bonded Dowty Seal Kit

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Quick Details
Any, Custom Size
Place of Origin:
Guangdong, China
Brand Name:
Model Number:
bonded dowty seal kit
Standard or Nonstandard:
Product name:
bonded dowty seal kit
leakproof bonded seal
self-centring bonded washers
Rubber/Stainless Steel
Hydraulic sealing, Pneumatic sealing
Minral oil, gas, fluid
Supply Ability
Supply Ability:
30000 Piece/Pieces per Day
Product Description

Bonded Seals

A bonded seal is a type of washer used to provide a seal around a screw or bolt. 
A bonded seal consists of an outer annular ring of a hard material, typically steel, and an inner annular ring of an

elastomeric material that acts as a gasket.

It is the compression of the elastomeric part between the faces of the parts on either side of the bonded seal that provides the sealing action.
The elastomeric material, typically nitrile rubber, is bonded by heat and pressure to the outer ring, which holds it in place.
This structure increases resistance to bursting, increasing the pressure rating of the seal.

Because the bonded seal itself acts to retain the gasket material,there is no need for the parts to be sealed to be shaped to retain the gasket.

This results in simplified machining and greater ease of use as compared to some other seals, such as O-rings.

Some designs come with an additional flap of rubber on the internal diameter to locate the bonded seal at the centre of the hole,

these are called self-centring bonded washers.


Product NameLeakproof Bonded Sealing Washers Stainless Steel Bonded Dowty Seal Kit
CategoryHydraulic seals, Pneumatic seals, customize seals


Bonded seal


Stainless Steel,Nitrile Rubber

High temperature, low temperature, high pressure, low pressure,

friction resistance

SizesStandard and customize
Temperature-45℃    +200℃
MiedumHydraulic oil,  anti-fire fluid, water, gas etc

excavators, loaders, graders, dump trucks, forklifts, bulldozers, scrapers, mining trucks,

cranes, aerial vehicles, garbage transfer vehicle, sliding cars, agricultural machinery,

logging equipment, aircraft, motor,electronics industries,etc.



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Company Information



DMS SEALS was established in 2008. We are a technology enterprise which specialized in the production of seals,

the development of seals material and the solution of the sealing of special working condition.


We own 120 staffs which including 70 middle and senior technicians.

Our factory covers more than 10000 square meters which including 8000 square meters for the workshop.

Our production equipment and test equipment are on leading level in the same industry.

We are the one of the biggest enterprise who specialized in manufacturing and developing seals in China.

We have long time cooperation and communication with many universities and research institutions at home and board.



We have already passed the certification of ISO 9001 and TS 16949. We have the mature technical reserve for the

solution of ultra-high temperature, ultra-high pressure, ultra-low temperature, highly corrosive and other special working










Packaging & Shipping



Q: Are you trading company or manufacturer ?

A: We are factory.

Q: How long is your delivery time?

A: Generally it is 3-7 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: What is your terms of payment ?

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us as below:

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People will find this product to be functional, practical, comfortable, and attractive in their space. - Said one of our customers. DMS Seal manufacturer is a technology enterprise which specialized in the R&D and production of seals. This product provides an effective space solution for a variety of environments including offices, dining facilities, and hotels. DMS Seal manufacturer is a technology enterprise which specialized in the R&D and production of seals.
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