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British Standard Fitting Company

About OPK Fitting

OPK FITTING Hydraulic Equipment Factory is China British Standard Fitting Company and British Standard Fitting Factory. 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 2026-05-26

    Hydraulic systems are among the most powerful and reliable force-transmission technologies in industrial and mobile equipment — yet they are also responsible for a significant share of serious workplace injuries every year. Hydraulic fluid injection injuries, burst hose incidents, and high-pressure...

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  • Industry News 2026-05-20

    Choosing the right hydraulic hose ferrule comes down to four factors: hose type, operating pressure, fluid compatibility, and whether your assembly requires skiving. A mismatched ferrule is the leading cause of hydraulic hose assembly failure — not worn hoses, not faulty fittings — and accounts for...

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  • Industry News 2026-05-05

    A socketless hose fitting is a hydraulic or fluid transfer connector that secures directly onto a hose using a barbed inner stem and an external clamp — with no crimped or swaged metal socket required. The fitting works by pushing its ribbed stem into the hose bore, then compressing a clamp band ov...

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British Standard Fitting

1、What Are British Standard Fittings?

British Standard Fittings refer to hydraulic and pipe connection components manufactured according to British standards such as BSP (British Standard Pipe). These fittings are widely used in fluid transfer systems due to their high compatibility, reliability, and standardized dimensions.

The most common types include BSPP (parallel thread) and BSPT (tapered thread). BSPP fittings typically require sealing with O-rings or washers, while BSPT fittings achieve sealing through thread interference. According to industry data, over 60% of hydraulic systems in Europe still rely on BSP standards, making them essential in global markets.

2、Key Types Of British Standard Fittings

(1)BSPP (British Standard Pipe Parallel)

BSPP fittings feature parallel threads and require additional sealing components. They are widely used in low to medium pressure systems.

(2)BSPT (British Standard Pipe Tapered)

BSPT fittings have tapered threads that create a tight seal during installation. These are commonly used in higher pressure applications.

(3)Adaptors And Hose Fittings

Adaptors connect different thread types, while hose fittings are used to link flexible hoses to rigid systems. These components ensure system flexibility and durability.

  • Wide range of sizes from 1/8” to 2”
  • Materials include carbon steel, stainless steel, and brass
  • Pressure ratings can exceed 6000 PSI

3、Applications Across Industries

(1)Construction And Machinery

British Standard Fittings are heavily used in construction equipment such as excavators and loaders. Their durability ensures reliable performance even under extreme conditions.

(2)Oil And Gas Industry

In petroleum applications, these fittings handle high-pressure fluid transfer. For example, offshore drilling systems often require fittings that can withstand pressures above 5000 PSI.

(3)Agriculture And Food Processing

Stainless steel BSP fittings are commonly used in food-grade systems due to their corrosion resistance and hygiene compliance.

4、Technical Comparison Table

Type Thread Design Sealing Method Typical Pressure
BSPP Parallel O-ring/Washer Up to 3000 PSI
BSPT Tapered Thread Seal Up to 6000 PSI
Comparison of British Standard Fitting Types and Their Performance Characteristics

5、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、FAQs About British Standard Fittings

Q1: What is the difference between BSPP and BSPT?

BSPP uses parallel threads and requires external sealing, while BSPT uses tapered threads for self-sealing.

Q2: Are British Standard Fittings compatible with NPT?

No, they are not directly compatible due to differences in thread angle and pitch. Using adapters is recommended.

Q3: What materials are commonly used?

Common materials include carbon steel, stainless steel, and brass, each suitable for different environments.

Q4: How to choose the right fitting?

Consider pressure rating, material compatibility, thread type, and application requirements to ensure optimal performance.