LNG ship tank expansion "Dome Seal - Σ type"

Using a resin-made retainer! Rust prevention measures are implemented to reduce maintenance and enable long-term use.

last updated Oct 27, 2022

Safety valve repair and replacement "Isolation Balloon Type-II"

It features a unique three-layer structure made with a special silicone material designed for extreme low temperatures!

last updated Dec 07, 2022

Sealant material "Hexa Balloon Series"

Used as a sealing material to temporarily block the piping during valve replacement and maintenance work!

last updated Aug 26, 2022

Pressure-type expansion seal "Tube Seal"

Can seal large gaps! Pressure management allows for adjustment of sealing surface pressure.

last updated Jun 14, 2024

Flange sealing material "Hexa Prop Seal"

It won't come off easily! The attachment and detachment of the joint can be done in a short time, making the work very easy.

last updated Oct 27, 2022

Inspection jig "Ship Bottom Plug for Marine Use"

Since it can be installed with hand tightening, no tools are required! It enables valve inspection offshore.

last updated Aug 26, 2022

Rotary shaft seal "VD seal"

It prevents the intrusion of external soil, mud, and water into the sealed part of the rotating axis!

last updated Sep 24, 2025

Various pipeline stop valves "Hexa Plug"

A closing plug that excels in lightweight, airtightness, and durability, and is active in a wide range of fields!

last updated Oct 27, 2022

Rotary Shaft Seal "Hexa Seal"

Rokubun Rubber develops and tests products that meet customer needs through communication with them. We aim for further customer satisfaction through improvement proposals!

last updated Oct 28, 2022

Rokubun Rubber Co., Ltd. Company Profile

Contributing to a comfortable life! We draw inspiration from new technologies and create.

last updated Oct 27, 2022