
A construction method that allows for the replacement and expansion of piping branches and valves with minimal water drainage!

A construction method that allows for pipe branching, valve replacement, and expansion work with minimal water drainage! We have newly started a warranty system for the "freezing method"!

We manufacture vibration-proof joints, canvas joints, flexible joints, expansion joints, and soft flexibles by processing soft PVC. Connections: flanges, band clamps, etc.

A new E-lock joint for recycled water polyethylene double-layer pipes is now available!

The basic principle is to combine it with other construction methods! The effectiveness of the combined construction methods increases, leading to a reduction in construction time.

When freezing methods cannot be used! Mechanically stop water at any location!

Snow melting and freeze prevention for equipment maintenance, as well as promoting the growth of agricultural products as a heating material. Actively used for various applications [agriculture, electric heating/heating cables, etc.].

For all your high-pressure gas and plant piping design and construction needs, trust Yamako!