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Industrial Hose Fit Suppliers

About OPK Fitting

OPK FITTING Hydraulic Equipment Factory is China Industrial Hose Fit Suppliers and Standard Hose Fitting 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.

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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...

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  • 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...

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  • 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...

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Standard Hose Fitting

1、What Is a Standard Hose Fitting and Why Is It Important?

A standard hose fitting is a critical connector used in hydraulic systems to securely join hoses with other components such as pumps, valves, and cylinders. These fittings ensure a tight seal and efficient fluid transmission under high pressure, often exceeding 3,000 PSI . A reliable fitting can significantly reduce leakage risks and improve system efficiency by up to 15% .

Standard hose fittings are widely used across industries including construction, agriculture, and manufacturing, where durability and reliability are essential.

2、What Are the Key Features of Our Standard Hose Fittings?

(1)Raw Material Options

Our fittings are available in carbon steel and stainless steel . Carbon steel is suitable for general applications, while stainless steel is ideal for environments requiring high corrosion resistance, such as marine or chemical industries.

(2)Surface Treatment

We use trivalent zinc plating (Cr3, chrome-free) with silver and yellow finishes. This eco-friendly coating enhances corrosion resistance while meeting environmental standards.

(3)Salt Spray Resistance

Our fittings pass a salt spray test of over 72 hours , and can reach up to 200 hours upon request, ensuring long-term durability in harsh environments.

(4)Packaging

Each product is protected with plastic caps and packed in carbon boxes to prevent damage during transportation and storage.

3、How to Select the Right Hose Fitting?

(1)Selection Factors

  • Pressure Rating – Must match system requirements
  • Material – Carbon steel or stainless steel based on environment
  • Corrosion Resistance – Essential for long service life
  • Compatibility – Must match hose dimensions and threading

(2)Material Comparison Table

Comparison of Hose Fitting Materials
Material Corrosion Resistance Application
Carbon Steel Medium General hydraulic systems
Stainless Steel High Marine and chemical industries

4、Why Choose OPK Fitting for Hose Fittings?

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.

(1)Our Advantages

  • Over 10 years of manufacturing experience
  • Skilled design and engineering team
  • Strict quality control system
  • Excellent customer service and OEM support

(2)OEM Service & Samples

We provide OEM services where customers only need to provide drawings or samples. In addition, free samples are available to help customers evaluate product quality before mass production.

5、Frequently Asked Questions (FAQs)

Q1: How long do hose fittings last?

With proper material selection and maintenance, hose fittings can last 3–5 years or longer depending on working conditions.

Q2: Can I customize hose fittings?

Yes, we offer OEM customization based on customer drawings or samples to meet specific application requirements.

Q3: Are free samples available?

Yes, we provide free samples . Please contact our sales team to request samples and evaluate product quality.