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Groove Joint and Groove Joint Coupling used for PEP/PFP coated pipe is a product which is able to solve the problems in piping with welding.

Groove Joint and Groove Joint Coupling of AJS which has top priority on clean water supply is mainly used for below 300A and it is proper to be used for natural sinking and earthquake-proof piping in which it eases the fatigue of pipe by absorbing the change of length by temperature difference and vibration at the joint.



Groove Joint and Groove Joint Coupling used for PEP/PFP coated pipe is a product which is able to solve the problems in piping with welding.

Groove Joint and Groove Joint Coupling of AJS which has top priority on clean water supply is mainly used for below 300A and it is proper to be used for natural sinking and earthquake-proof piping in which it eases the fatigue of pipe by absorbing the change of length by temperature difference and vibration at the joint.


Expansion joint from AJS is able to connect pipe promptly after cutting without extra processing pipe and easy to assemble or disassemble during installation. It can help absorb stress and vibration and body is coated with epoxy to ensure to have durability and corrosion resistance.

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