JIS hydraulic fittings

JIS hydraulic fittings

What does JIS fitting stand for?

JIS stands for Japanese Industrial Standard. It is a reliable and globally accepted standard used for threads on various hydraulic fittings, JIS connector, etc. Initially, it was intended as a standard for equipment manufactured in Japan and Korea, but now gets widely used.

JIS standards define the size and wall thickness of fittings per Japanese standards. Typically, they use a 30° or 60° flare and adhere to BSP threading (BSP and BSPT). You can find these fittings in various sizes and materials like steel and brass.

Reusable JIS hose fittings display good flexibility and insulation for various hydraulic fluids. They are also corrosion-resistant and offer long service life. You can see JIS fittings across industries, like shipping, mining, and hydraulics.

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What are JIS hydraulic fittings?

Hydraulic applications that operate in high pressure demand reliable fittings. JIS hydraulic fittings frequently get used in equipment manufactured in Japan and Korea. You can find JIS standards in hose adapters also. It is important not to mix standards while selecting components for your hydraulic system unless they are interchangeable.

These fittings most commonly use BSP threads. You can get them manufactured in BSPP or BSPT based on your requirements. The common cone connections use a flare of 30° or 60°. Usually, these fittings get built from hot forging. However, some manufacturers use cold-drawn barstock to build JIS fittings hydraulic.

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What is JIS to npt adapter?

Hydraulic adapters get used to connect hoses and pipes to other components like valves, cylinders, etc. A JIS to npt adapter connects the hydraulic pump to multiple hoses of different standards, namely, JIS and NPT (National Pipe Tapered threads). The latter is the US standard for measuring tapered threads and has widespread application across industries.

You need JIS adapters for connections when the components of your installation adhere to diverse standards. In this case, you can connect a male 30-degree cone to an NPT male thread. These, along with a JIS to jic adapter, manage the flow of the fluid and prevent leaks. They are particularly helpful in high-pressure hydraulics.

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What are JIS 30 degree fittings?

You may need to use JIS fittings in several high-pressure applications and hydraulic systems. JIS 30 degree fittings use a BSPP thread and have a 30° seat on the male end. The female end also has a 30° flared seat. You can find them in various shapes and connections like 45-degree elbows, 90-degree elbows, JIS tee, straight unions, etc.

These fittings get widely used to join tubing in gas systems, chemical processing, power, etc. Stainless steel is the most preferred material for its durability and corrosion-resistance, but you can also find a Brass JIC hydraulic fitting. Agriculture and construction machinery depend on these connections too.

JIS 60° cone in BSP threads for Hydraulic power units in Dubai. JIS 30 degree fittings fully interchangeable with Swagelok/ Parker

Is JIS the same as BSP?

Hydraulic systems rely on proper fittings and other components for optimum performance. A JIS fitting and BSP are not the same. You cannot use them interchangeably as BSP hydraulic fittings adhere to different application standards and cone diameters. The lengths of threads are also disparate. Both standards enjoy popularity across many critical applications, but their principles are separate.

It is worth noting that JIS tapered threads and BSPT are almost identical. But if you use JIS parallel threads, you will find a 30° cone on the male end and a 30° flare on the female ends.

Brass JIS connector & adapters in all threads for leak free connections in GCC Countries

What is JIS testing?

It uses test methods that apply to multiple industries and markets. Japanese hydraulic fittings undergo rigorous testing to meet the highest standards. Initially, JIS got championed by the Japanese Standards Association (JAS) as a set of anti-microbial test methods for silver-treated products.

JIS comprises two main standards: JIS Z 2801 and JIS L 1902. The former applies to plastics, foams, and hydrophobic fabrics. You can also use the ISO 22196 test as it is similar to JIS Z 2801. They can get used interchangeably to certify antimicrobial performance. The JIS test you select will depend on the requirements of the industry.