A metal washer and an elastomeric ring are bonded inside the diameter to make up the Bonded Seal. The metal washer reduces elastomeric ring deformation and prevents excessive compression.For screw connections and flange seals, bonded seals are metal washers with a vulcanized trapezoidal elastomer sealing lip. The elastomer sealing lip is crushed as the screw is tightened, creating the sealing effect.
Bonded Seals are made out of an elastomer sealing lip that has been vulcanized to the edge of a metal washer. They are used in oil and gas applications such as pipe connectors and couplings to seal bolted connections and mounting parts. The sealing lip is forced against the flat surfaces as the bolted connection is tightened.
A metal washer with a vulcanized rubber seal cemented inside is referred to as a bonded seal (also known as a Dowty seal or washer). It is utilized in high pressure applications where traditional sealing methods are inappropriate, such as threads and flange joints. There are bonded seals in metric and inch sizes. The metal component may be made of high tensile steel, 316 stainless steel, brass, aluminum alloy, zinc-plated mild steel, or aluminum bronze. Nitrile, Fluorocarbon, Hydrogenated Nitrile, Fluorosilicone, Silicone, Ethylene Propylene, and Aflas can all be used to make the rubber component.
A bonded seal is made up of an inner annular ring made of an elastomeric material that serves as a gasket and an outer annular ring made of a hard material, usually steel. The sealing action is created by compressing the elastomeric portion between the faces of the parts on either side of the bonded seal. Heat and pressure are used to attach the elastomeric material, usually nitrile rubber, to the outer ring, holding it in place. The seal's pressure rating is increased by this structure's increased resistance to bursting. There is no requirement for the parts to be sealed to be formed to maintain the gasket because the bonded seal operates to retain the gasket material by itself. As a result, machining is made simpler and easier.
Sealing washers aid to seal joints, prevent leaking, and offer cushioning under the bolt or nut's head. Bonded washers work in conjunction with a gasket. Rubber bonded washers are manufactured to very precise specifications. Because the rubber substance does not slip, the washer assures a flawless fit.
The inside diameter of the rubber washer is intended to seal tightly to the screw. Sealing Washers' materials compress against either a flexible or an inflexible surface when mounted in a sealing application, permanently sealing in or sealing out any operational environment, whether natural or industrial.
The steel ring's inner rubber layer, often NBR, is what creates the sealing effect. glued to the outer ring by pressure and heat. Strong compression and burst resistance are features of this construction. Self-centering bonded gaskets are several types that have an additional rubber flap on the inner diameter to place the bonded seal in the center of the hole;
