Hydraulic O-Ring Seals for Cylinders, Pumps and Valves

Product Introduction

Hydraulic O-Ring Seals are rubber sealing components used in hydraulic systems to prevent oil leakage, pressure loss, and fluid contamination. They are commonly installed in hydraulic cylinders, pumps, valves, pipe joints, and industrial machinery. Yuefeng supplies custom hydraulic O-rings in different rubber materials, sizes, hardness, and colors according to customer drawings or samples.

Product Applications

Hydraulic Cylinder Seals

Rubber O-rings and sealing rings are used in hydraulic cylinders to prevent oil leakage, maintain pressure, and protect the

system from dust and contamination. They are commonly applied in piston sealing, rod sealing, end cap sealing, and cylinderconnection areas.

Widely used in excavators, forklifts, hydraulic presses, agricultural machinery, construction equipment, and industrial equipment.Custom materials, hardness, sizes, and colors are available.

Hydraulic Pumps

Rubber seals used in hydraulic pumps are designed for rotating and high-speed working conditions. They help prevent

oil leakage in shaft and housing areas while reducing friction and wear during continuous operation.

Commonly used in gear pumps, vane pumps, piston pumps, and industrial hydraulic systems.

Valve Sealing Applications

Rubber seals used in valves provide reliable sealing under high pressure and continuous flow conditions. They are applied in valve stem, seat, and body connections to prevent leakage of water, oil, gas, and chemicals.

Widely used in industrial pipelines, water systems, oil & gas, and chemical equipment. Custom materials and sizes are available.

Pipe Joints & Flange Connections

Rubber O-rings and sealing rings are widely used in pipe joints, flange connections, and fittings to prevent leakage of water,

air, gas, oil, and other fluids. They help create a tight seal between connection surfaces and improve the reliability of pipeline systems.

These seals are commonly used in water supply systems, industrial pipelines, pumps, valves, HVAC systems, and general fluid control equipment. Custom materials, sizes, hardness, and shapes are available according to different working conditions.

What Materials Can You Get from Yuefeng?

Yuefeng provides different rubber materials for O-rings, sealing rings, gaskets, washers, and custom molded rubber parts. Materials can be selected according to oil resistance, water resistance, temperature, pressure, and chemical resistance requirements.

NBR – Good oil resistance and wear resistance, suitable for hydraulic systems, pumps, valves, and machinery.

EPDM – Good water, steam, ozone, and weather resistance, suitable for water systems, sanitary products, and outdoor sealing.

FKM – Excellent high temperature, oil, fuel, and chemical resistance, suitable for demanding industrial applications.

Silicone – Good flexibility and high/low temperature resistance, suitable for food-grade, medical, electronic, and household products.

HNBR – Better heat, oil, and wear resistance than NBR, suitable for automotive and high-performance sealing.

PU – Excellent wear resistance and pressure resistance, suitable for hydraulic cylinders and dynamic sealing parts.

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