접착 씰(Dowty Seals)

접착 씰의 특성

.ldeal 압력 개스킷

.고압 및 저압에서 안정적인 밀봉 가능 고온 및 저온 성능

.조임 하중 손실 없이 볼트 토크 감소 금속 링으로 고무 압축 방지

.금속 링은 고무 압축을 방지합니다. 

Bonded Seal은 다음과 같은 재료를 선택하여 사용할 수 있습니다.

.연강 . 니트릴 -30°C ~ +100°C

.연강 . HNBR -20°C ~ +150°C

.스테인레스 스틸 .Viton -20°C ~ +200°C

.황동 .EPDM - 50°C ~ +150°C

.알루미늄 .실리콘 -60°C ~ +250°C

우리는 다음 범위의 표준 및 셀프 센터링 스타일로 접착 씰을 공급할 수 있습니다. 미터법 "인치 *BSP, 독일 미터법 *프랑스 미터법

제품 세부 정보

GM500/WX/US/USIT 1

GM500 셀프 센터링 /WZ /USS/USIT 1 SF

GM 1000

GM 2000

600

610

품질검사 비전검사 자동화를 보유하고 있습니다.

턴테이블 가장자리에는 4개의 감지 모듈이 있습니다. 감지 모듈은 사진을 찍어 분석 및 판단을 위해 소프트웨어 시스템으로 전송합니다. 부적합품은 불량창을 통해 표시 및 불합격 처리되며, 적격품은 최종적으로 수거가 용이하게 됩니다. 합격률은 최대 99.5%입니다.

What is the difference between bonded seal and dowty seal?

A bonded seal and a Dowty seal are two names often used interchangeably to describe the same type of sealing component, but there are subtle differences in terminology and usage depending on context and industry. Both are composite seals designed to provide reliable sealing under high-pressure conditions, particularly in hydraulic and pneumatic systems.

What Is a Bonded Seal?

A bonded seal is a type of washer that consists of a metal ring (usually steel or stainless steel) with a vulcanized rubber sealing element (typically nitrile rubber or FKM) bonded to its inner diameter. This combination creates a durable and reusable sealing washer capable of withstanding high pressures and temperatures. When compressed between two surfaces—such as a bolt head and a housing—the rubber element deforms to fill any gaps, creating a leak-proof seal.

What Is a Dowty Seal?

The term Dowty seal originally referred to a brand name for bonded seals developed by the British engineering company Dowty Group. Over time, “Dowty seal” has become a generic term in many industries, especially in the UK and Commonwealth countries, to describe bonded seals in general. In practice, a Dowty seal is a type of bonded seal, but not all bonded seals are Dowty seals in the strictest branding sense.

Key Differences

Applications

Both bonded and Dowty seals are widely used in:

Hydraulic fittings

Fuel systems

Oil drain plugs

High-pressure connections

Automotive and industrial machinery

While the bonded seal and Dowty seal perform the same function and have an identical structure, the difference lies mainly in naming and origin. “Dowty” is essentially a branded or colloquial term for a bonded seal, and in practical applications, they are functionally equivalent. Regardless of the name used, these seals are critical in preventing leaks in high-pressure systems and ensuring long-term mechanical integrity.

What does a bonded seal do?

A bonded seal is a highly reliable sealing device designed to provide a tight, leak-proof seal in high-pressure applications. It is composed of two main parts: a metal washer (typically made of stainless steel or carbon steel) and an elastomeric sealing ring (commonly made from materials like nitrile rubber, Viton, or silicone) that is bonded to the inner edge of the washer. The purpose of a bonded seal is to prevent fluid or gas from leaking around bolts, screws, and other fasteners in hydraulic, pneumatic, or mechanical systems.

How It Works

When a bonded seal is installed between two flat surfaces—usually where a bolt or threaded fitting is tightened—the metal washer provides structural support while the rubber insert compresses and deforms slightly. This creates a tight seal against both the mating surface and the fastener. The elasticity of the rubber compensates for minor imperfections on the sealing surfaces, ensuring a durable and leak-free connection.

Advantages of Bonded Seals

High Pressure Resistance: Bonded seals are ideal for high-pressure systems, often used in hydraulics and pneumatics.

Temperature and Chemical Resistance: Depending on the rubber material used (e.g., Viton for high temperature or chemical resistance), bonded seals can perform well under various environmental conditions.

Reusable in Some Cases: While the elastomer may degrade over time, the metal washer adds durability, and in less critical systems, the seals can sometimes be reused.

Easy to Install: Bonded seals can be quickly and easily installed without special tools, making them convenient for both OEM and maintenance applications.

Common Applications

Bonded seals are used across many industries, including:

Automotive: sealing engine bolts, oil drain plugs, and transmission parts.

Aerospace: ensuring leak-free connections in hydraulic and fuel systems.

Industrial Equipment: used in pumps, compressors, and machinery.

Hydraulic Systems: sealing between hydraulic fittings and threaded joints.

In summary, a bonded seal provides a secure and effective sealing solution for threaded components and fasteners exposed to fluids or gases. Its combination of metal strength and rubber flexibility allows it to perform reliably in demanding environments, making it an essential part of modern mechanical and hydraulic systems.