Hongze Rubber Expansion Joint is a flexible pipeline connector used to absorb vibration, reduce noise, compensate axial, lateral and angular movement, and reduce stress on pipeline equipment. It is widely installed near pumps, valves, compressors, chillers, cooling towers and industrial piping systems.

Zhengzhou Hongze Valve Pipeline Equipment Co., Ltd. supplies reliable rubber expansion joints for water treatment, HVAC systems, chemical plants, oil pipelines, power plants, marine systems and general industrial pipelines. Our products are designed for stable sealing, easy installation, flexible movement compensation and long service life.

Hongze rubber expansion joints can be supplied in different rubber materials according to the working medium. EPDM is suitable for water, hot water, air, seawater, weak acid and alkali. NBR is suitable for oil, mineral oil and oily media. Neoprene offers good weather and seawater resistance. FKM/Viton is suitable for higher temperature and stronger chemical resistance applications. PTFE lining is also available for corrosive or special chemical media.

The flange connection can be customized according to project standards, including ANSI Class 150/300, DIN PN10/PN16/PN25/PN40, JIS 10K/16K, BS, EN, AWWA and GB standards. Flange materials can be carbon steel, galvanized steel, stainless steel 304 or stainless steel 316.

Hongze can provide single sphere rubber expansion joints, double sphere rubber expansion joints and customized structures according to drawings or technical specifications. Special requirements such as inner sleeve, limit rods, special length, special drilling, high pressure design and large diameter production can also be discussed.

Our rubber expansion joints are widely used in water supply and drainage systems, pump rooms, HVAC pipelines, cooling water systems, wastewater treatment plants, chemical plants, petrochemical pipelines, power plants, marine pipelines and industrial equipment connections.

Why choose Hongze? Hongze provides not only standard rubber expansion joints, but also practical selection support based on real working conditions. Our team can help customers confirm suitable rubber material, flange standard, pressure rating, installation length and structure according to medium, temperature, pressure and pipeline requirements.

To provide an accurate quotation, please send us the nominal diameter or pipe outside diameter, working pressure, working medium, working temperature, flange standard, installation length, quantity and drawings if available. Hongze Pipeline will provide professional technical support and customized quotation for your project.