What is a Dowty Seal. A bonded seal, a metal washer with a vulcanized rubber insert for use in high pressure applications where other means of sealing are unsuitable. The flexing action of the lips under pressure provides a positive and leak proof seal against a wide range of fluids.
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What are Dowty washers used for?
What is a Dowty Seal. A bonded seal, a metal washer with a vulcanized rubber insert for use in high pressure applications where other means of sealing are unsuitable. The flexing action of the lips under pressure provides a positive and leak proof seal against a wide range of fluids.
How does a Dowty seal work?
The Dowty Bonded Seal is a synthetic rubber sealing member that is bonded with heat and pressure to a zinc plated steel washer. The flexing action of the lips under pressure provides a positive and leakproof seal against a wide range of fluids, at, depending upon size, pressures up to 20,000 p.s.i. (1380 bar).
Are Dowty washers reusable?
But yes they are reusable.
Where are Dowty washers used?
A metal washer bonded to rubber, bonded washers (aka Dowty washers) are used to prevent leakage of media through fasteners of hydraulic fittings, pipe join flanges and valve bodies. A bonded washer consists of a flat metal ring with rubber bonded to the internal diameter that is wider than the metal washer.
What are bonded seals used for?
Bonded Seals consist of an elastomer sealing lip vulcanized to the edge of a metal washer. They are used to seal bolted connections and mounting elements in oil and gas applications such as pipe connections and couplings. When the bolted connection is tightened, the sealing lip is pressed against the flat surfaces.
What is a seal washer?
Sealing and cushioning washers create an airtight seal between fasteners and surfaces. Also known as rubber washers or sealing washers, they prevent leakage around plumbing fixtures, brake systems, and hydraulic applications.
What are bonded sealing washers used for?
Sealing washers help seal joints, prevent leakage and provide cushioning under the head of the bolt or nut. Bonded washers are used in combination with a gasket. Rubber bonded washers are fabricated to very precise standards. The washer ensures a perfect fit because the rubber material will not slip.
What is a sealing washer?
What are bonded sealing washers?
A bonded seal is a type of washer used to provide a seal around a screw or bolt. Originally made by Dowty Group, they are also known as Dowty seals or Dowty washers. Now widely manufactured, they are available in a range of standard sizes and materials. Dowty Seal taken over by Trelleborg sealing solutions.
What is a lip seal?
Lip seals serve to protect lubricated moving parts and they do this by keeping the lubricant inside the bearing, and keeping contamination from dirt or other liquids out. The term lip seal is generally used to refer to what is correctly known as rotary shaft seals or oil seals or radial shaft seals.
How long do rubber washers last?
Shelf Life and Rubber Types
| Rubber Material | Recommended Shelf Life |
|---|---|
| EPDM | 5 – 10 years |
| Butyl | 5 – 10 years |
| Nitrile | 5 – 10 years |
| Silicone | 20 years |
Why are sealing washers used?
These sealing washers are used in combination with standard screws and bolts to seal out water, oil, dust, solvents and other materials or contaminants.