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Joint Product List

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Floppy Joint "J Series S Type"

Floppy Joint "J Series S Type"

Floppy joints that achieve high flexibility and large eccentricity.

The "J Series S Type" is a highly flexible flange-type joint. Thanks to its special structure, it offers high flexibility and allows for a large amount of eccentricity with a short face-to-face dimension. It is suitable for connecting rainwater piping, blower piping, and piping that requires frequent installation and removal. 【Features】 ■ High flexibility ■ Large eccentricity *For more details, please download the PDF or contact us.

  • Piping materials (plastic pipes)

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AT Joint "F Series A Type"

AT Joint "F Series A Type"

Excellent heat resistance, cold resistance, non-stick properties, and vibration resistance! Chemical-resistant rubber joint lined with fluororesin on the inner surface.

The "F Series A Type" is a chemical-resistant rubber joint lined with fluororesin on the inside. It excels in heat resistance, cold resistance, non-stick properties, and vibration damping. It can be used for high-temperature hot water piping, food piping, various chemical piping, ultra-pure water piping, and hot spring piping applications. 【Features】 ■ Chemical resistance ■ Heat resistance ■ Cold resistance ■ Non-stick properties ■ Vibration damping *For more details, please refer to the PDF materials or feel free to contact us.

  • Piping materials (plastic pipes)

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Global Joint "F Series G Type"

Global Joint "F Series G Type"

A global joint that achieves both delivery and suction!

The "F Series G Type" is a standard spherical flexible joint for vibration-damping around pumps. Despite its short face-to-face dimensions, it achieves significant vibration-damping effects. It is suitable for applications in building service piping, air conditioning and sanitation equipment piping, and ship piping. 【Features】 ■ The spherical shape provides stability against internal pressure and allows for use in both delivery and suction due to its resistance to negative pressure. ■ The spherical design results in minimal dimensional changes under pressure compared to other types of joints. *For more details, please download the PDF or contact us.

  • Piping materials (plastic pipes)

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Heat-resistant joint "Q Series"

Heat-resistant joint "Q Series"

Introducing a rubber joint for high-temperature air made of silicone rubber and heat-resistant fibers!

The "Q Series" is a rubber joint designed for high-temperature air, composed of silicone rubber and heat-resistant fibers. The lineup includes flexible "F type," expansion "E type," bend "B type," and reducer "R type." These products are intended for vibration and noise reduction, as well as displacement absorption in lines carrying high-temperature air, and can be used in piping for high-pressure blowers and drying lines for food products. 【Partial Lineup】 ■ Flexible "F type" ■ Expansion "E type" ■ Bend "B type" ■ Reducer "R type" ■ Bellows "J type" *For more details, please refer to the PDF document or feel free to contact us.

  • Piping materials (plastic pipes)

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Special item: Rubber joint

Special item: Rubber joint

Transparent silicone tubes and flanges with different specifications on the left and right! Please feel free to consult us about any special items.

Hachiken is a specialized manufacturer of rubber joints for piping, producing all products domestically. We would like to introduce some examples of our custom products. We have manufactured a "transparent silicone tube" with a diameter of φ165×200 and a "left and right non-standard flange flexible joint" with a size of 65A×200. Our company is capable of accommodating various special specifications. Please feel free to consult us about anything. 【Production Examples】 ■ Transparent Silicone Tube: φ165×200 ■ Left and Right Non-Standard Flange Flexible Joint: 65A×200 *For more details, please refer to the PDF document or feel free to contact us.

  • others

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Estimated useful life: rubber joint

Estimated useful life: rubber joint

Calculate the estimated useful life based on usage conditions! Please use it as a guideline for regular inspections and replacement timing.

The "rubber joint" is made of organic materials such as rubber and synthetic fibers, so it has a limited lifespan. Additionally, its lifespan can vary significantly depending on the usage conditions. By downloading the PDF document, you can view the "Service Life Coefficient Table" and the "Pressure Unit Conversion Table." Please use these to estimate the expected service life based on your usage conditions, as a guideline for regular inspections and replacement timing. The standard service life is set assuming the fluid is water. *For more details, please refer to the PDF document or feel free to contact us.*

  • Fittings

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