Bonded seals are a type of gasket used to seal screws and bolts. It is called the Dowty. Seal or Dowty Gasket because it was originally manufactured by the Dowty Group. It is now widely manufactured in a variety of materials and sizes. The Bonded Seal was originally designed to replace copper type washers in high-pressure systems. Often used as bolt seals in hydraulic equipment, today bonded seals (commonly known as Dowty Seals) are finding usage in many and varied applications throughout various industries.
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.
All size ranges and material combinations are available. This same basic concept can be used to produce customized shapes for specific applications in any of the combinations of rubber to metal or plastic bonding.
Bonded Seals are available with or without the self-centralizing lip.
High Quality Bonded Seal Washer Assortment Set
Used in hydraulic and pneumatic connections that are subject to extreme pressures
Galvanized Copper /Washers metal gaskets /dowty seals/ Bonded Seals
Zinc plated, Stainless Steel, Alloy Steel, Plated steel, Metal, Rubber
High pressure MPa head gasket carburetor engine repair replacement kit dowty bonded washer sealing kit
Product name : Galvanized Copper Washers metal head gasket carburetor engine repair replacement kit dowty seals Bonded seal;
Size : any size can be customized
Color ： blue/red/black/custom
Material : carbon steel, zinc/yellow zinc plated or stainless steel (on request)
NBR 70 (Standard)/NBR 90/FKM (Viton®) 75/EPDM 70
Product features :German quality, high pressure MPa, new design, fast delivery
Bonded Seal Advantages: Reliable low and high pressure sealing/High and low temperature capabilities/Bolt torque is reduced with no loss of tightening load
Component:The Bonded Seal comprises a metal washer and an elastomeric ring bonded inside the diameter
Bonded seal sealing principle:
Bonded seals consist of an elastic material used as a gasket and a hard material used as an outer ring. It is a sealing ring used to seal threaded and flanged connections. The combination gasket is used for threaded pipe joints and screw plug sealing. It is generally used together with the ferrule type pipe joint to block the oil port. It is mainly used for the static sealing of the end face of the threaded connection of the hydraulic valve pipe joint.
Combination gaskets are available in metric and imperial sizes. Combination joints can be divided into type A and type B according to the structure; They can be divided into full pack and half pack according to the difference of rubber. The allowable working pressure is 400 kg/cm2 (39.2 MPa) and the working temperature is between -25 and 80 ℃.
1. The sealing lip of the rubber material is vulcanized on the metal edge for sealing the bolted connection or the installation room, suitable for all industrial purposes.
2. The existence of rubber material ensures the sealing performance of the internal interface, the connection is stable, and the fixing is safe.
3. The corresponding rubber material also provides the function of suitable combination gasket, so that it can work and seal normally.
4. The thickness of the imported custom-made core gasket metal ring limits the compression of rubber parts, eliminates the phenomenon of joint deformation beyond the limit, and ensures the reliability of the sealing system.
5. Internal pressure is applied to the sealing lip, which improves the sealing performance.
Application: automotive, electronics, chemical, antistatic, flame retardant, food and other industries.
Approaching NOK-CN factory
Fatory staff of more than 150 people
Our own production of oil seal skeleton
Quality through quality teating
Fast delivery, reliable quality
Area:13320m2 Comple industrial chain
Integrated Process of strength factory
2.Date of Delivery
a. 1-2 days if goods in stock.
b. 10-15 days if goods out of stock with molding.
c.25-30 days if goods out of stock without molding.
a. 30% T/T in advance and 70% balance paid before shipment.
b. West union/Money Gram
d.others for discussion
4.Can you produce according to the samples?
a. We accept ODM and OEM at the same time.We have the ability to provide the sample of the products of decomposition, develop the mould, for production.
5. How do you make our business long-term and good relationship?
a. We will continue to improve the process control, and improve the quality of our products and work to reduce operating costs and provide a competitive price for customers, to ensure that customers benefit
b. We seriously treat every customer, in good faith with them to do business, make friends, no matter how much volume, we will provide.