Bonded washer manufacturer a simple pressure gasket providing leakproof sealing from water, gasses, oils and other fluids. Composite sealing washers introduction design principle and types parker composite sealing washers consist of an elastomer sealing element which is chemically or mechanically bonded to a metallic carrier washer. A rubber washer also reduces vibration and noise and is commonly used with roofing and siding fasteners. Bonded washers are the costeffective solution for roofing screw connection. Bonded seals available from stock in standard and selfcentering types you can now buy bonded seals in our webstore. Now widely manufactured, they are available in a range of standard sizes and materials. Epdm rubber is vulcanized the metal from the zinc plated mild steel, aluminum, and stainless steel. This washer can be used to seal out airwater or dampen vibration and noise. 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. A bonded washer consists of a metal washer bonded to show more. Sealing washer metal rubber laminated bonded washers are available with various materials. Email this page download pdf download pdf printable page. Bonded seals are also known as dowty seals or dowty bonded washers. The metal washer prevents overcompression and limits deformation of the elastomeric ring.
These orings are well suited for most industrial hydraulic and pneumatic systems. The bonded seal commonly known as a dowty seal is a rectangular section metal washer, with a trapezoidal shaped ring of vulcanised rubber bonded to the inside. Rubber to metal bonded seal with specially designed sealing lip for threads and nuts no need of acountersink to center the seal, this is achieved thanks to the design of the sealing lip the seal prevents leakage by sealing in the thread the three contact lips of the rubber body seal the thread to nut and machine component positively. The metal ring resists the bursting forces and limits deformation of the element. Bonded seals were originally designed to replace copper type washers used in highpressure systems. The dowcy bonded seal was washers in higher pressure system s. The nak bonded seal comprises a metal washer and an elastomeric ring bonded inside the diameter. Bonded washers or sealing washers are used in applications that require a stronger seal than conventional washers might provide. The washer spreads stress and strengthens the joint for a high torque application while the rubber washer cushions the joint against the hard surface. Main metal washers tensile strength mnm2 min specification mild steel pressings cs4 brh5 540 bs en 109 mild steel turned en8 540 bs en 100832. The bonded seal is a rectangular section metal washer with a trapezoidal ring of vulcanised rubber bonded to the inside, giving a high quality, normally high pressure seal used as a static seal, in many occasions to replace copper washers.
Uk seals ltd can supply bonded seals in both standard and self centering styles. Bonded sealing and cushioning washers washers grainger. They consist of a metal washer and an elastomeric ring bonded inside the diameter. Series image description datasheet 400 series the 400 series bonded seal was originally designed to replace copper type washers in highpressure systems. Bonded seals 400 series pdf 600 series 600 series bonded seals are one piece molded in place seals with the rubber sealing element mechanically. The bonded seal offers an ideal sealing solution to a wide range of engineering applications. Parkers composite sealing washers perform two major functions. The 400 series bonded seal was originally designed to replace copper type washers in highpressure systems.
Bonded washers are a unique take on the traditional washer, and they play an important sealing role when needed. Dowty seal taken over by trelleborg sealing solutions. N oring material selection standard orings supplied with parker tube fittings and adapters are 90 durometer hard nitrile bunan. Bonded seals bonded washers are the evolution of the traditional copper washers. Seal comprises a metal washer and an elastomeric ring bonded inside. Available in other rubber materials as well as different metals. Shop bonded sealing washers and a variety of hardware products online at. Originally made by dowty group, they are also known as dowty seals or dowty washers. The discs consist of a metallic ring and a rubber sealing pad bonded together. Wz composite sealing washer parker wz series composite sealing washers are a further development of the wz series.
The underside of the washer has a sealant design to prevent leakage and contamination, and contain pressure. We offer bonded sealing washers with grey epdm in a range of stock sizes from 4. Oz seals bonded washers are used in applications that require stronger seal than conventional washers might provide. The metal side absorbs the pressure of a nail head or screw while the neoprene side forms a tight water resistant seal. The bonded washers moulded elastomer lining helps prevent fluids from leaking through bolt holes. Browse bonded washer parallel metric thread in the world wide metric, inc. Epdm rubber is vulcanized the metal from the zinc plated mild steel, aluminum, and stainless. Standard washers are used to help evenly distribute the load of the bolt. The bonded seal was originally designed to replace copper type washers in highpressure systems. Neoprene bonded seal washers are soft and resilient, but create an excellent bond to the metal washer, and forms a tight seal.
They are high pressure seals which are used in the mechanical, hydraulic and pneumatic sectors. Nak bonded sealwas originally designed to withstand high pressures, and it is being substituted for copper type washers in higher pressure system. Bonded sealing washers, stainless steel 188 bolt depot. The benefit of a sealing washer is a molded elastomer lining which helps prevent fluids from leaking. Bsp supplied individually other nonstandard sizes are available, please get in touch with our sales team to discuss contact us for all your stainless steel bsp dowty seals needs. Parker 316 stainless steel bonded seal washer, male bspp, 18. Rubber is bonded to a washer to form a washer that is strong, yet soft and resilient enough to use with fragile materials. Sealing washers, sometimes called pressure sealing washers, are used with fasteners, such as bolts or screws.
The bonded seal was originally designed to replace copper replace copper replace copper type washers in higher pressure type washers in higher pressure. A bonded seal consists of a metal outside ring and an inner ring of rubber elastomer that acts as a gasket to provide a sealing action. The bonded seal was originally designed to replace copper type washers in higher pressure systems. Bonded sealing washers washers fastener bonded sealing. Bonded seal dowty washers ca2173 champion fasteners. Sealing washers help seal joints, prevent leakage and cushion under the head of the bolt or nut. An improvement to the original concept is the selfcentralising bonded seal designed by pamargan that offers additional benefits. Catalog 4300 orings and seals pdf section updated october 2017 dimensions for reference only, subject to change. Simple copper type construction the gasket comprises a metal annulus, or h c h an of trapezoidal section is bonded. Orings and other items bonded washers dowdy seal bonded washer parallel metric thread view items. Both the washer and the material can be selected to suit a given application. Selfcentralising bonded seals an improvement to the original concept is the selfcentralising bonded seal that offers additional benefits. These washers are used to seal bolt heads and prevent leakage from hydraulic fittings, pipe joints and valve bodies. The bonded seal commonly known as a dowty seal is a rectangular section metal washer, with a trapezoidal shaped ring of vulcanised rubber bonded to the.
They can be assembled and removed, do not need setup. Apex fasteners bonded washers bonded washers or sealing washers are used in applications that require a stronger seal than conventional washers might provide. Bonded washer parallel metric thread on world wide metric. Get free 2day shipping on qualified bonded sealing washer products or buy products today with buy online pick up in store. Order today, track your order and receive your goods quickly with our speedy delivery service. These are sealing discs that seal threads and flange joints. The metallic carrier prevents compression of the elastomer seal beyond its elastic limit and thus its destruction. The 400 series bonded seal comprises a metal washer and bonded seals 400.
Choose these sealing and cushioning washers from grainger to prevent costly fluid leakages on plumbing fixtures and engines. The flexing action of the lips under pressure provides a positive and leakproof seal against a wde range of fluids, at, depending upon size, pressures up to 20,000 p. They are designed to seal beneath the head of the fastener for both internal and external pressure systems. Sealing washers and rubber washers we inventory all popular sizes of epdm bonded sealing washers neoprene washers, and flat rubber washers. Bonded sealing washers are used a lot by plumbers because of their neoprene seal. Bonded washers profile standard selfcentering non selfcentering bonded washers bdw design designed for static sealing high resistance to extrusion material low compression set rubber bonded to a mild steel ring. The oz seals bonded washers standard design consists of mild steel ring that is zinc plated and gold passivated that is bonded with nitrile rubber sealing element. They are available in galvanized steel and stainless steel and in a range of sizes. Bonded seal best ring rubber parts manufacturers with rubber. Bonded sealing washers are a single piece metal bonded sealing washers are a single piece metal and neoprene sealing washer. Rubber sealed washers also help reduce vibration and noise. Bonded seals dowty seals often used as bolt seals in hydraulic equipment, today bonded seals commonly known as dowty seals or dowty washers are finding usage in many and varied applications throughout industry. Bonded washers are made of silicone rubber with metal backing and combine strength and flexibility. They are high pressure seals used in the mechanical, hydraulic and pneumatic sectors.
The dowty bonded seal is a synthetic rubber sealing member that is bonded with heat and pressure to a zinc plated steel washer. Looking for parker 316 stainless steel bonded seal washer, male bspp, 18 pipe size pipe fitting 20yz75. Bonded sealing washers create a seal that provides a greater degree of corrosion protection than conventional washers do. Manufacturer of epdm bonded washer is black nonconductive, made in galvanized steel, aluminum, stainless steel. Each bonded washer includes the traditional outer ring of hard material typically metal but it also includes an inner ring that acts as a gasket and provides a needed seal. Stainless steel bsp dowty seals nbr seals 316 stainless steel sizes 18. They are also used with sheet metal screws for sealing metal roofing. Washer size diameter is the size bolt that the washer is used with. A bonded seal is a type of washer used to provide a seal around a screw or bolt. Epdm bonded washer, epdm bonded sealing washer uta.
When ordering selfcentralising bonded seals change the first digit of ashton reference to an 8 e. Stainless steel bsp dowty seals hydraulic megastore. High pressure joint gasket seal the dowty banded seal is a synthetic rubber sealing member that is bonded with heat and pressure to a zinc plated steel washer. Galzanized plating, made of layers of zinciron, protects the bolt from corrosion. Bonded sealing washers seal provides a greater degree of corrosion protection than conventional washers, making them ideal for plumbing or outdoor applications like roofing. Sealing washers come in inch or metric measurement and may be made in the us. Their main function, in presence of very high pressure, is allowing the fluid sealing. Bonded seals 600 series 600 series bonded seals are one piece molded in place seals with the rubber sealing element mechanically locked in the metal retainer. Simple in construction the gasket comprises a metal. All parts supplied by gapi including the original std and now also the self centralising. The 400 series bonded seal comprises a metal washer and an elastomeric ring bonded inside the diameter.
656 194 792 854 887 584 152 1348 129 986 955 739 1180 79 305 87 1276 618 295 1209 18 850 452 1059 836 624 1078 1478 873 967 979 1414 389 394 934 981 1503 1144 160 84 530 451 1218 877 584 1209