YUYAO DUOLI HYDRAULIC CO., LTD.
YUYAO DUOLI HYDRAULIC CO., LTD.

Hose Fittings Adapters

Hydraulic fitting adapters are different hydraulic components (pumps, pipelines, directional valves, shut-off valves, hydraulic motors, hydraulic cylinders, and some auxiliary components, such as level gauges, thermometers, pressure gauges, and so on) connected to form a closed circuit of the hydraulic system is to play a role in connecting an accessory. Hydraulic fittings can withstand the high strength of the pressure, if the hydraulic oil fittings have sand holes, small holes or the pressure is too high to withstand such a large pressure and the impact of the burst is quite large. Hydraulic fitting adapters are widely used in the military, energy, petrochemical, electric power, ships, automobiles, rail transport, construction machinery, mining, metallurgy, steel mills, marine engineering and other industries in the hydraulic piping system.

Types of Hose Fittings Adapters

JIC MALE 37° CONE BULKHEAD

The JIC Male 37° Cone Bulkhead fitting is a specialized hydraulic connector. Designed to penetrate walls or partitions, it provides a secure, leak-proof seal on both sides, ensuring reliable fluid transfer in demanding industrial and automotive applications.

ORFS MALE O-RING

The ORFS Male O-Ring fitting is a key hydraulic connector. Its face-mounted O-ring provides a reliable, leak-free seal under high pressure, making it ideal for demanding fluid systems in automotive, aerospace, and industrial applications.

ORFS MALE O-RING/BSP MALE ED SEAL

The ORFS Male O-Ring/BSP Male ED Seal is a key hydraulic fitting. It combines an ORFS face seal for reliability with a BSP ED seal for robust thread compatibility, ensuring a secure, leak-proof connection in demanding fluid power applications.

ELBOW ORFS MALE O-RING/PRFS FEMALE

The Elbow ORFS Male and PRFS Female connector is a key hydraulic fitting for directional changes. It uses a face-mounted O-ring for a reliable, high-pressure seal, ensuring leak-free performance in demanding industrial and automotive fluid systems.

45° ELBOW ORFS MALE O-RING/PRFS FEMALE

The 45° Elbow ORFS Male and PRFS Female fittings are key hydraulic connectors for directional changes. They form a secure, leak-proof seal using an O-ring face seal, ensuring reliable performance and efficient space utilization in fluid systems.

ORFS MALE O-RING/ORFS FEMALE RUN TEE

The ORFS Male O-Ring and ORFS Female Run Tee are key hydraulic fittings. The male fitting provides a secure, leak-proof seal with its O-ring, while the female tee enables efficient fluid branching, ensuring reliable performance in high-pressure systems.

Uncompromising Quality & Superior Materials of Hose Fittings Adapters

Aircraft-Grade Materials

As one of the leading hose adapter manufacturers, we use certified steel, stainless steel, brass, and other alloys that meet or exceed international standards (e.g., SAE, DIN, JIS). Our materials are rigorously tested for hardness, tensile strength, and corrosion resistance.

Precision Engineering

All Duoli hydraulic hose adapters are manufactured with CNC machining to exacting tolerances. This ensures a perfect fit, eliminating leakage paths and withstanding extreme pressure spikes and vibration.

Why Choose Duoli Hose Fittings Adapters?

Why Choose Duoli Hose Fittings Adapters?

We offer the most comprehensive hose adapter types in the industry. From common JIC, NPT, and SAE flanges to BSP male connector(BSPP, BSPT), ORFS, and Metric standards, we have the fitting you need.


Simplify your sourcing and reduce procurement complexity. Whether you need elbows, tees, crosses, reducers, or custom designs, Duoli, among hose adapter manufacturers, is your single, reliable source for all connection points.


We offer a range of surface treatments like zinc-nickel plating, black oxide, and passivation to provide superior corrosion protection, extending the life of your components and your entire system of hose fittings adapters.

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