BSP Hydraulic Fitting Manufacturer in China

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Product List

Topa directly supplies a wide range of stainless steel British Standard Pipe (BSP) fittings. Our BSP fittings feature high-quality stainless steel construction that can withstand strong working conditions. British Fittings are manufactured using British threads such as British Standard Pipe Parallel (BSPP) and British Standard Pipe Tapered (BSPT). These fittings and adapters are commonly found on equipment manufactured in the United Kingdom as well as from some OEMs in Europe. Metric fittings are more commonly found on mainland Europe equipment manufactured in countries such as Germany, France, and Italy.

BSP Hydraulic Fitting Video

In this video, you will see a variety of BSP hydraulic fittings from Topa, covering everything from right angles and tees to a wide range of customized styles. These fittings are CNC machined with high precision to ensure that each one is a perfect fit for the customer. The video will take you through the construction of each type in detail, helping you to quickly find the right hydraulic fitting for your system.

Whether it’s industrial machinery, agricultural equipment, construction and transportation, Topa’s BSP fittings ensure a safe and reliable fluid system connection and improve the overall efficiency of your equipment.

After watching this video, you will have a more comprehensive understanding of Topa’s BSP hydraulic fittings. Contact us today for more information about Topa, your hydraulic accessories specialist, and we’ll provide you with customized solutions to help your project move forward without any hassle!

Application

Hydraulic hoses and hydraulic fittings are widely used in different hydraulic industries.

Hydraulic fitting connects to hydraulic cylinders, tubes, or different hydraulic hoses in a hydraulic system.

Our large selection of inch screw connections, fittings, and adapters makes us a specialist in the area of replacement and repair needs for such industries as construction, agricultural and forestry machinery, industrial equipment, and many more. Wee offer a range of Steel and Stainless Steel BSP Adaptors and connectors to get the most out of your hose. We stock our Adaptor fittings from top quality manufacturer’s so can guarantee their efficiency, performance and longevity. These adaptors are suitable for a wide range of media, including but not exclusive to water, oil and air mainly in the hydraulic and pneumatic industries.

Explore Our Products!

Visit our website to browse our extensive range of BSP fittings, hoses, and accessories—designed for optimal performance in every application.

Products Features

BSP fittings are designed with a variety of configurations to meet diverse hydraulic system needs. The structure typically includes a male or female threaded end, which provides a tight, leak-proof connection. The fittings are usually constructed from high-quality materials such as stainless steel, brass, or carbon steel, ensuring strength and durability even in harsh environments.

Topa as per the BSP Hydraulic Fittings manufacturer could provide quality or reliability one union hydraulic fittings with a more cost-effective solution. It could match most of the brands of hydraulic hose, such as Parker, Manuli, Gates, and so on. Compatible BSP Hydraulic Fittings are equivalent to most major brands. It also could use a common hose crimping machine.

Structure

BSP (British Standard Pipe) fittings are based on the ISO 228 and Whitworth thread standards, which were developed to provide secure and reliable connections for pipes and fittings in hydraulic systems. The BSP thread features a 55-degree angle, which is different from the 60-degree angle of NPT threads. This distinction is important for compatibility, as BSP and NPT threads are not interchangeable due to differences in thread geometry. The threads on BSP fittings have rounded peaks and valleys, unlike NPT threads, which have pointed peaks and valleys. This design ensures a smooth, precise connection and helps prevent misalignment and leakage when connected. BSP threads are widely used around the world, particularly in the UK, Europe, Asia, Australia, and many other regions.

Working Principle

BSP fittings work by creating a secure, pressure-resistant connection between two components in a hydraulic system. The threaded design allows for a tight seal when the fitting is screwed into place, which prevents leaks under high-pressure conditions. The threads on both the fitting and the pipe or hose align and interlock, ensuring a solid connection. In BSPT fittings, the tapered threads create a self-sealing effect as they tighten, while BSPP fittings use an external sealing method like a washer or O-ring to ensure no leakage. Depending on the design, BSP fittings often incorporate sealing elements (such as O-rings, PTFE tape, or washers) to ensure an extra layer of leak protection, particularly when used in high-pressure or dynamic applications.

Thread Types

The BSP thread system consists of two primary thread types—BSPP (British Standard Pipe Parallel) and BSPT (British Standard Pipe Tapered). Both of these thread types are based on the British Standard Whitworth (BSW) thread system, which was first developed by Joseph Whitworth in 1841. This makes BSP threads one of the oldest and most widely recognized screw thread standards in the world.

BSPP Threads

Thread Type: Parallel

Designation: BSPP threads are often referred to as “G” threads in the BSP system.

Functionality: BSPP threads are straight, with parallel male and female threads. These fittings rely on external seals (such as O-rings or sealing washers) to achieve a leak-proof connection.

Key Features:

Sealing Mechanism: Seals are created through a bonded ring (e.g., O-ring or sealing washer), which is placed between the male and female threads, pressing against the shoulder of the male fitting and the face of the female fitting. This creates a secure, leak-tight seal.

Application: BSPP fittings are commonly used in low-to-medium-pressure fluid transfer systems where reliable sealing and easy installation are crucial.

Usage: Widely used across the UK, Europe, Asia, Australia, New Zealand, and South Africa. BSPP fittings are often found in hose ends, adapters, and ports in industrial systems.

BSPT Threads

Thread Type: Tapered

Designation: BSPT threads are commonly known as “R” threads in the BSP system.

Functionality: BSPT threads are tapered, meaning they have a conical shape that tightens as the fitting is screwed in, creating a self-sealing effect that prevents fluid leaks without the need for an additional seal.

Key Features:

Sealing Mechanism: As the threads are tapered, they create a seal as they tighten. The sealing occurs when the male thread’s conical shape presses tightly against the female thread, forming a pressure-tight connection.

Application: BSPT fittings are typically used in high-pressure systems or where a permanent seal is needed. These fittings are common in applications that involve gases, fuels, and hydraulic systems.

Usage: BSPT fittings are often used in industrial equipment, pneumatic systems, and heavy machinery where secure, high-pressure connections are essential.

BSP Standard

The ISO 7 and ISO 228 standards define the technical specifications for pipe threads used in various piping systems worldwide. These standards are critical for ensuring compatibility, functionality, and safety in systems that require secure connections.

ISO 228

Purpose:

ISO 228 specifies threads where the pressure-tight seal is not made on the threads but rather through other sealing methods, such as O-rings, washers, or gaskets. These threads are typically parallel and are used in applications where the connection needs to be leak-proof but not necessarily reliant on the threads for sealing.

ISO 228-1:2000

This part defines the dimensions, tolerances, and designations of threads to ensure compatibility in non-pressure-tight applications.

ISO 228-2:1987

This part specifies the verification of thread dimensions and tolerances using limit gauges, ensuring proper fit and functionality.

ISO 7

Purpose:

ISO 7 specifies threads designed for pressure-tight joints, where the sealing is achieved through the threads themselves. These threads are typically tapered and are used in applications where maintaining internal pressure is critical, such as in hydraulic systems, plumbing, and gas pipelines.

ISO 7-1:1994

This part defines the dimensions, tolerances, and designations of threads. It ensures that threaded parts fit together precisely and achieve pressure-tight sealing.

ISO 7-2:2000

This part specifies the verification of threads using limit gauges, ensuring compliance with the standard and guaranteeing proper fit and sealing performance.

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How to Identify British Threads & Fittings

Identifying British Standard Pipe (BSP) threads involves distinguishing between the two main types—BSPP (Parallel) and BSPT (Tapered)—and understanding their unique characteristics. Here’s how to identify and distinguish them:

Determine if the Thread is Parallel or Tapered

BSPP (British Standard Pipe Parallel) threads have straight, parallel male and female threads. These fittings rely on external seals like O-rings, elastomeric seals, or bonded washers to create a leak-proof connection.

BSPT (British Standard Pipe Tapered) threads feature tapered threads, which naturally create a seal by wedging the male and female threads together as they tighten. This requires additional support from thread sealant (such as thread tape or dope).

Thread Flank Angle

Both BSPP and BSPT threads have a 55° flank angle, which is a key characteristic of British threads. This is in contrast to other international standards such as NPT, which have a 60° flank angle.

Imperial Sizes

BSP threads are measured in Imperial sizes, meaning they follow sizes such as 1/8″, 1/4″, 1/2″, 3/4″, etc. This is an important distinction because, despite BSP being a foreign thread standard, it is not metric.

Sealing Mechanism

BSPP Sealing:

BSPP threads are typically sealed by a 30° chamfer on the male thread that mates with a 30° cone seat inside the female thread, commonly used in swivel fittings. For port applications, O-rings, washer seals, or elastomeric seals are required for a proper seal.

BSPT Sealing:

BSPT threads create a seal through thread wedging, and additional sealing compounds (like thread tape or thread dope) are often used to enhance the sealing effect. BSPT fittings do not require additional sealing rings like BSPP fittings.

Confirming Threads Per Inch (TPI)

To confirm whether a fitting is BSP and to determine its size:

Measure the threads per inch (TPI): BSP threads are typically measured by TPI, which can help you differentiate between similar fittings. BSP threads have a defined TPI range, and knowing the exact TPI can help identify the exact size and type of BSP fitting.

Gender and Fitment

Male BSPP fittings usually have a flat face with external threads, and the female BSPP will have a matching flat face with internal threads.

Male BSPT fittings have a tapered thread, while the female BSPT will have a matching tapered thread. Note that it’s possible for a male BSPT fitting to fit into a female BSPP fitting, but this is only functional if the female fitting is non-swivel. This is because the female BSPP features a recessed cone seat, which can interfere with the fit when swivels are involved.

Avoid Common Pitfalls

At Topa, our professional team is dedicated to ensuring that your BSP fitting purchases are smooth and error-free. With our expertise, you can trust that your fittings will perform flawlessly and meet the demands of your hydraulic system.

Sealing Method

BSPP fittings require external seals like O-rings or bonded washers to create a leak-tight connection. Neglecting to select the correct sealing method can lead to leaks or inadequate performance, so always ensure that the proper seals are used based on your system’s requirements.

Confusing BSP with NPT

BSP and NPT threads are not compatible due to differences in thread angles and shapes. BSPT threads have a 55-degree flank angle, while NPT threads use a 60-degree angle. Using the wrong type can result in poor alignment, leaks, or even system failure.

Thread Size Mismatch

BSP fittings come in specific thread sizes, usually measured in imperial units like 1/8", 1/4", 1/2", etc. Ensure that you accurately verify the thread size and TPI (threads per inch) to prevent purchasing fittings that won't fit properly with your existing pipes or hoses.

Get in Touch Today!

Contact our expert team now to discuss your specific hydraulic fitting needs and receive a tailored solution that meets your requirements.

Choose Topa

More Than Just a Hydraulic Fittings Manufacturer

Whether you need customized solutions, expert advice, or fast delivery, our professional team is here to support you every step of the way. With Topa, you can be confident that you’re not just purchasing products, but gaining a trusted partner dedicated to your success.

Customized Solutions

We provide tailor-made hydraulic fittings and hoses to meet the specific requirements of your systems, ensuring compatibility and optimal performance.

Expert Consultation

Our experienced team offers expert advice on fitting selection, installation, and maintenance to help you make the best decisions for your projects.

Fast Delivery

With our large-scale production capabilities and efficient logistics, we ensure timely delivery to meet your project deadlines, no matter where you are located.

Quality Assurance

All our products undergo strict quality control measures to ensure they meet international standards and provide reliable, long-lasting performance.

Technical Support

We offer ongoing technical support for installation, troubleshooting, and system optimization, helping you resolve any issues quickly.

After-Sales Service

We provide excellent after-sales support, including product replacement and warranty services, ensuring your complete satisfaction with every purchase.

Your Reliable BSP Hydraulic Fitting Manufacturer

We are focused on supplying our customers with the highest quality, OEM specification hydraulic hose, and fittings for Manufacturer Direct Prices! TOPA hydraulic company has been supplying our customers with the highest quality hydraulic components for many years. Our hydraulic hose and fittings are manufactured to the exact high-performance specifications as are hoses from manufacturers such as Parker, Eaton-Weatherhead, and Goodyear. We supply hydraulic hose, hydraulic hose ends, and hydraulic adapters (both steel and brass adapters) from the same manufacturers that are sourced by heavyweight hydraulic hose and fittings companies at significant price savings.

Easy to assembly
Reduces complexity and leakage
No-Skive technology
Efficient convenience
More stable
Reasonable price
Large inventory
Small MOQ

BSP Hydraulic Fitting Factory in China

Topa-hydraulic fitting manufacturer & supplier, we could supply all the hydraulic hose and fittings. Please contact us, you could find what you need.

Our parts are checked for quality assurance at multiple points of the manufacturing process to insure we supply the very best products to our customers. We perform hydraulic impulse and hydraulic pressure testing to guarantee safe and effective operation during field use.We are able to ship quickly and offer our customers a direct sales contact for any issue they may encounter.

In topa hydraulic company, we take pride in our product quality and our company service. Thank you for visiting us and please feel free to call us with questions. We welcome any opportunity to serve our customers.

2004 Founded, ISO, TVU BV approved
One stop for hydraulic fittings
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FAQ

What is a BSP hose fitting?

BSP hose fittings are to allow you to build general pneumatic pipe assemblies or you need additional parts to complement your connections.Used to transport fluids in hydraulic systems commonly used in industrial, mining and manufacturing equipment.

What is BSP hydraulic fitting?

Known as Whitworth threads, BSP threaded fittings are available in two ways of sealing, using metal-to-metal corner surfaces, or metal-to-metal and O-rings. Both versions have a 60° sealing surface angle

What is BSP size?

The size of the BSP refers to the measurement of the internal thread connection, known as the actual diameter (imperial system). The actual diameter (metric system), which is most easily calculated by measuring the shorter length of the thread crest.

Is BSP and BSPP the same?

BSP thread is British Standard Pipe, which includes BSPP and BSPT threads. BSPP is a kind of BSP parallel thread with a thread and pitch angle of 55 degrees. It also can use bonded seal rings or 60 degree cones to stop leaking.

How is BSP hydraulic fittings measured?

The size of the BSP refers to the measurement of the internal thread connection, known as the actual diameter (imperial system) The actual diameter (metric system), which is most easily calculated by measuring the shorter length of the thread crest.

Do BSP threads need sealant?

BSP fittings can use female and male threads to form a seal ,so do not require thread sealant.

What is the use of BSP thread?

BSP is a set of thread technical standards, which has been widely used wordwidely. It connects pipes and fittings through female and male threads.BSP thread can be used in many pressure systems on ships.Various materials such as bronze, cast iron, steel, brass, and plastic can be used with BSP hydraulic threads.

Is 3/4 BSP the same as 22mm?

All threads in the UK, even 22mm metric fittings, have 3/4 BSP threads unless your ball valve is a 22mm copper compression fitting.

Is BSP tapered or parallel?

BSP hydraulic fittings include two types of threads, one is BSPP thread, which is straight or parallel, the other is BSPT thread, which is tapered. The BSPT male cone will fit together with the BSPT female cone ,and will not cause leak.

Can you fit NPT to BSP?

Due to the distinct thread forms, NPT and BSP threads are generally not compatible. The female cone of NPT threads is 60°, while BSP threads is 55°, which is the Whitworth thread form. Sometimes NPT male threads will fit into BSPT fittings, but they will cause leaks.