Home / Product / Hydraulic Adapters

Hydraulic Adapters Suppliers

About OPK Fitting

OPK FITTING Hydraulic Equipment Factory is China Hydraulic Adapters Suppliers and Hydraulic Hose Adapters Manufacturers. We are a professional domestic factory with extensive experience in the production of hydraulic pipes and fittings. Our managing scope relates to various fields such as hydraulic systems etc.; Including all kinds of materials with different pressure levels, flexible hydraulic hoses with various size criteria, hose fitting, adaptor, etc. They have been respectively applied in the hydraulic and fluid conveyance systems of industries, such as machinery, metallurgy petroleum, construction, ships, space-flight, agriculture, pharmaceutical, food, and so forth.
We provide ODM/OEM customization services for a wide range of high-pressure hydraulic fittings and hydraulic oil pipe fittings.
Over 10 years of experience.
A team of skilled design professionals and talent.
Excellent product quality and thoughtful customer service.

Our 10 years of customisation experience has created the OPK Fitting brand value.

Honor

  • Honor
  • Honor
  • Honor
  • Honor

News

  • Industry News 2026-09-03

    여러분의 손은 이미 그 차이를 알고 있습니다. JIC 수형 피팅은 JIC 암형 스위블과 금속 간 37° 플레어가 있는 시트에 부드럽게 나사산이 끼워져 있습니다. 동일한 수컷을 NPT 포트에 연결하면 나사산이 묶이거나 누출되거나 손상됩니다. 이 짧은 테스트는 JIC 유압 피팅이 인기 있고 오해받는 이유를 포착합니다. JIC는 공동 산업 협의회(Joint Industry Council)를 의미하며 형상은 SAE J514에 정의되어 있습니다. 평행 UNF 나사산과 37° 플레어 밀봉 표면. 유압 호스를 주문하거나 조립할 때 나...

    View More
  • Industry News 2026-08-26

    새로 배달된 호스 조립품이 펌프 포트에 3번 회전한 후 결합된다고 가정해 보십시오. 조금 더 힘을 가하면 연결이 제대로 보이지만 시스템이 작동 압력에 도달하자마자 누출이 발생합니다. 현장 서비스에서 일치하지 않는 유압 피팅 스레드는 결함이 있는 호스보다 훨씬 더 자주 누출, 포트 벗겨짐 및 생산 시간 손실을 유발합니다. 스레드 계열과 이를 식별하는 방법을 이해하면 이러한 문제가 시작되기 전에 대부분의 문제를 해결할 수 있습니다. 유압 피팅 스레드가 중요한 이유 유압 피팅의 나사산은 부품을 함께 고...

    View More
  • Industry News 2026-08-20

    A hydraulic hose bursts on an excavator arm at mid-morning. The spare fitting in the toolbox looks exactly like the damaged one, but it will not thread on. Identifying hydraulic fittings correctly is what separates a 20-minute repair from a half-day hunt for the right adapter. Most hydra...

    View More

Contact us now

Hydraulic Adapters

1、What Are Hydraulic Adapter s?

Hydraulic adapters are essential components used to connect different types of hydraulic hoses, pipes, and fittings within a hydraulic system. They ensure secure sealing and efficient fluid transmission , even under high pressure conditions that can reach up to 700 bar (10,000 PSI) .

These adapters help solve compatibility issues between different thread types and sizes, making them indispensable in modern hydraulic applications.

2、Key Functions of Hydraulic Adapters

(1)Connecting Different Thread Types

Hydraulic systems often use different standards such as BSP, NPT, and JIC. Adapters allow seamless connection between these incompatible threads, improving system flexibility.

(2)Reducing Leakage Risk

A properly selected hydraulic adapter can reduce leakage rates by over 90% compared to poorly matched fittings, ensuring system safety and efficiency.

(3)Improving System Efficiency

By minimizing pressure drops and turbulence, adapters help maintain stable flow rates, which can improve overall system efficiency by 5–15% in high-performance systems.

3、Types of Hydraulic Adapters

Type Material Application
Straight Adapter Carbon Steel / Stainless Steel Connecting same-direction fittings
Elbow Adapter Carbon Steel Changing flow direction (45°/90°)
Tee Adapter Stainless Steel Splitting or combining fluid flow
Types of hydraulic adapters and their typical applications.

4、Applications Across Industries

Hydraulic adapters are widely used across multiple industries. Their durability and precision make them suitable for demanding environments.

  • Construction machinery (excavators, loaders)
  • Agricultural equipment (tractors, harvesters)
  • Oil & gas pipelines
  • Marine and aerospace systems

In heavy-duty machinery, adapters are expected to withstand vibration, temperature fluctuations, and pressure surges exceeding 500 bar .

5、About OPK Fitting

About OPK Fitting
OPK FITTING Hydraulic Equipment Factory is a specialized domestic factory with hydraulic pipes and adaptors production experience. Our managing scope relates to various fields such as hydraulic systems etc.; Including all kinds of materials with different pressure levels, flexible hydraulic hoses with various size criteria, hose fitting, adaptor, etc. They have been respectively applied in the hydraulic and fluid conveyance systems of industries, such as machinery, metallurgy petroleum, construction, ships, space-flight, agriculture, pharmaceutical, food, and so forth.

Over 10 years of experience. A team of skilled design professionals and talent. Excellent product quality and thoughtful customer service.

6、How to Choose the Right Hydraulic Adapter

  1. Identify thread types (BSP, NPT, metric)
  2. Check pressure rating (must exceed system pressure by at least 25%)
  3. Select appropriate material (steel for high pressure, stainless for corrosion resistance)
  4. Ensure proper sealing method (O-ring, metal-to-metal)

For example, in a system operating at 300 bar , the adapter should have a rated pressure of at least 375 bar to ensure safety.

7、FAQ

Q1: What materials are hydraulic adapters made of?
Most hydraulic adapters are made from carbon steel, stainless steel, or brass, depending on application requirements.

Q2: How do I know which adapter size to choose?
You should match the thread type and size of your hose or pipe, and ensure compatibility with system pressure and flow requirements.

Q3: Can hydraulic adapters handle high pressure?
Yes, high-quality adapters can handle pressures up to 700 bar or more , depending on design and material.