Nitrile rubber NBR seals
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Nitrile rubber NBR seals

Nitrile rubber NBR seals complete the sealing element lineup, providing reliable, general-purpose sealing performance for electrical equipment applications that do not require the extreme temperature or corrosion resistance of specialty elastomers.

Product Parameters

- Material properties: formulated from nitrile rubber (NBR), a widely used synthetic elastomer known for good general oil resistance and durability in everyday industrial sealing applications.
- Sealing reliability: designed to maintain a stable, effective barrier against moisture, dust, and general contaminant ingress at equipment joints and connection points.
- Oil resistance: offers solid resistance to oil exposure, making it suitable for sealing applications near oil-filled or oil-lubricated electrical equipment components.
- Cost-effectiveness: as a widely produced, general-purpose elastomer, NBR provides dependable sealing performance at a lower cost than specialty rubbers such as fluorine or fluorosilicone compounds.
- Durability: resists wear and compression set under normal operating conditions, supporting a stable seal over extended periods of routine use.
- Application role: completes the sealing element range as the general-purpose option, suited to standard temperature and environmental conditions where premium-grade corrosion or temperature resistance is not required.

For everyday electrical equipment sealing needs where operating conditions fall within moderate temperature and environmental ranges, this NBR seal offers a reliable, cost-effective, general-purpose sealing solution that rounds out the sealing element range alongside the more specialized ACM, FPM, and FVMQ options.

Oil resistance and general durability are verified during production testing to confirm each seal batch meets standard performance specifications before shipment. Custom seal dimensions and profiles can be produced to match specific equipment joint designs, giving customers a dependable, general-purpose, cost-effective sealing option for standard electrical equipment applications. Technical data sheets covering oil resistance and durability test results are available on request to support engineering evaluation before specifying this seal into a general-purpose sealing application. Packaging is designed to protect seal geometry during shipping and storage, preserving performance and dimensional accuracy through to installation.

Who Are We?
Penglong

Jiangsu Penglong Electric Engineering Co., Ltd. is a specialized manufacturer integrating R&D, design, and production of power transmission components, high-current conductor systems, and industrial electrical connection products.

With extensive industry experience, the company specializes in high-current conductive connections, copper-aluminum transition solutions, transformer components, and industrial furnace conductor systems. Supported by a complete manufacturing system and modern equipment, Penglong offers customized and large-scale production.

Its products are widely used in transformers, industrial furnaces, electrolysis equipment, switchgear, and power distribution systems. Main products include busbars, conductive rods, copper-aluminum connectors, terminals, flexible connectors, water-cooled cables, and other custom conductive components.

Jiangsu Penglong Electrical Engineering Co., Ltd.
Latest News
Sep 18, 2026
Company News
Jiangsu Penglong Electric Engineering Co., Ltd.
Jiangsu Penglong Electric Engineering Co., Ltd. is a specialized manufacturer integrating R&D, design, and production of power transmission components, high-current conductor systems, and industrial electrical connection products. With extensive industry experience, the company specializes in high-current conductive connections, copper-aluminum transition solutions, transformer components, and industrial furnace conductor systems. Supported by a complete manufacturing system and modern equipment, Penglong offers customized and large-scale production. Its products are widely used in transformers, industrial furnaces, electrolysis equipment, switchgear, and power distribution systems. Main products include busbars, conductive rods, copper-aluminum connectors, terminals, flexible connectors, water-cooled cables, and other custom conductive components.
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Jiangsu Penglong Electric Engineering Co., Ltd.
Sep 18, 2026
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