NBR EPDM FKM Bonded Bonded Seals for Oil, Gas, and Hydraulic Equipment

In modern industrial systems, sealing reliability is a key factor in ensuring
operational stability, particularly in environments where pressure,
temperature, and chemical resistance intersect. One solution that has gained
attention across sectors such as automotive, hydraulic, and petrochemical is
the Combination Gasket Seal—a component that integrates metal and elastomer
materials to provide multi-functional sealing performance.

Rather than relying on single-material gaskets, Bonded Seals are designed to
offer both structural support and flexible sealing in a single unit. Typically,
these products consist of a metal washer or frame—often carbon steel,
stainless steel, or brass—bonded to a layer of rubber material like NBR
(nitrile rubber), FKM (fluoroelastomer), or EPDM, depending on the medium and
environment.

Where Are Combination Gasket Seals Used?
These seals are commonly used in:

Hydraulic pipe connections, especially in mobile equipment or compact manifolds

Automotive fluid systems, including fuel injection components and transmission
housing

High-pressure gas systems where vibration or surface irregularities may cause
conventional seals to fail

Oil and gas flange interfaces that require both sealing and mechanical
retention

Their versatility makes them a suitable choice for sealing static interfaces
that must remain leak-free under pressure without relying on external sealing
compounds.

Key Benefits and Performance Features
Dual-sealing capability: The metal component ensures stability and pressure
resistance, while the rubber layer provides conformity and adaptability to
surface imperfections.

Easy installation: Most combination gasket seals are designed for drop-in use,
eliminating the need for additional sealants or surface preparation.

Material flexibility: Manufacturers can select rubber grades tailored for oil,
fuel, water, or aggressive chemicals, offering compatibility across various
industries.

Temperature tolerance: Depending on the elastomer used, seals can operate in a
wide temperature range with minimal performance degradation.

Reduced maintenance: A proper combination seal reduces the likelihood of leaks
over time, lowering maintenance needs and replacement frequency.

Customization and Quality Control
Many Chinese and international manufacturers now offer custom-designed
combination gaskets for specific pressure ratings, flange sizes, or material
requirements. Whether the client needs a specific durometer hardness,
thickness, or groove fitment, custom production is often available after
prototype validation.

During manufacturing, strict quality control procedures—including dimensional
inspections, material tests, and compression set analysis—are conducted to
ensure product consistency and performance integrity.

Minimum Order: 1000 pieces

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