六菱ゴム List of Products and Services

The "Hexa Expansion Dome Seal Type Σ" is a membrane structure made of rubber that holds gas pressure and accommodates shaking and expansion. Additionally, by using a resin retainer, it provides rust prevention, reduces maintenance, and allows for long-term use. It is installed in the absorption areas between the tank and the hull of LNG and LPG ships, where shaking and expansion occur during navigation, and is used for gas holding and water tightness. 【Features】 ■ High elasticity is achieved due to the rubber-only structure ■ The use of protective rubber prevents the retainer from biting in ■ High durability is achieved by using a resin retainer ■ Diaphragm type is also available in the lineup *For more details, please refer to the PDF document or feel free to contact us.

The "ISOLATION BALLOON Type-II" is a device that temporarily blocks the piping during the replacement and maintenance of safety valves to prevent the leakage of vapor gas from the tank. It has significantly improved pressure resistance compared to Type-I. It features a unique three-layer structure made from a special silicone material designed for extreme low temperatures. Additionally, it allows for work from the side, enabling operations in a compact space. 【Features】 ■ Significantly improved pressure resistance compared to Type-I ■ Unique three-layer structure made from a special silicone material for extreme low temperatures ■ Compact design (significantly reduced branch pipe diameter) from 150A to 80A ■ Allows for side work (enabling operations in a compact space) *For more details, please refer to the PDF document or feel free to contact us.

The "Hexa Balloon Series" is used as a sealing material to temporarily block pipelines during valve replacement and maintenance work in various types of pipelines. We offer a range of balloons including the LNG ship balloon "Isolation Balloon Type-II," large diameter balloons (spherical) called "Mega Balloons," and specially shaped balloons for "Dust Prevention Balloons." Additionally, we have a variety of lineups available according to different applications. 【Features】 ■ Temporarily blocks pipelines during valve replacement and maintenance work ■ A wide range of lineups available ■ Designed and manufactured to meet customer specifications such as size and material *For more details, please refer to the PDF document or feel free to contact us.

The "TUBE SEAL" expands (inflatable) by being pressurized with a fluid (air, water, oil, etc.), sealing gaps and demonstrating its sealing function. It can seal large gaps and can follow the irregularities, distortions, misalignments, and vibrations of the sealing surface. Additionally, it allows for pressure management and on/off adjustments via remote control, and the sealing surface pressure can be adjusted through pressure management. 【Features】 ■ Capable of sealing large gaps ■ Can follow the irregularities, distortions, misalignments, and vibrations of the sealing surface ■ Allows for pressure management and on/off adjustments via remote control ■ Sealing surface pressure can be adjusted through pressure management ■ Specifications can be designed separately according to application *For more details, please refer to the PDF document or feel free to contact us.

The "Hexaprop Seal" utilizes the advantages of U-shaped packing and is a sealing material that has the required tension against the groove. As a sealing material with a flange structure, it eliminates the hassle of attachment and detachment while providing sufficient sealing performance against vibration and expansion. The product itself adheres to the packing groove with its own tension, making it unlikely to come off easily, allowing for quick attachment and detachment of joints, which makes the work significantly easier. 【Features】 ■ Utilizes the advantages of U-shaped packing and has the required tension against the groove ■ Eliminates the hassle of attachment and detachment while providing sufficient sealing performance against vibration and expansion ■ Adheres to the packing groove with its own tension, making it unlikely to come off easily ■ Allows for quick attachment and detachment of joints, making the work significantly easier *For more details, please refer to the PDF document or feel free to contact us.

The "Ship Bottom Plug" is an inspection tool that allows for safe, easy, and low-cost inspections of the ship's bottom while at sea. It can be installed by hand, so no tools are required. For diameters of 300A and above, a tank type is used, which improves workability by reducing weight through buoyancy underwater. It allows for single-person operation, enabling overall cost reduction. 【Features】 ■ No tools required (can be installed by hand) ■ High sealing performance ■ Applicable to various piping ■ Tank type used for diameters of 300A and above ■ Improved workability through weight reduction by buoyancy underwater ■ Single-person operation possible *For more details, please refer to the PDF document or feel free to contact us.

The "VD Seal" is a self-seal with a unique single lip structure based on a U-shaped packing design. It is designed to be used over a wide range of low to high pressures by setting the angle of the lip tip, thickness, and housing structure, allowing for sealing without the lip tip being lifted or inverted. Additionally, the sealing lip has very low surface pressure against the shaft surface due to face contact, resulting in minimal wear on both the shaft and the lip. 【Features】 ■ Prevents the intrusion of external dirt, mud, and water into the sealing area of the rotating shaft ■ Used to protect bearings and retain lubricants ■ Has a unique single lip structure based on a U-shaped packing design ■ Allows for sealing without the lip tip being lifted or inverted ■ The sealing lip has very low surface pressure against the shaft surface due to face contact *For more details, please refer to the PDF document or feel free to contact us.

This product is a closing plug used for blocking the openings of various pipelines. It is utilized in various fields to prevent the intrusion of foreign objects during plumbing work and to prevent the leakage of liquids and gases from the pipelines. Due to its simple and lightweight design, it offers excellent workability and can be quickly attached and detached as needed, greatly contributing to the reduction of labor hours. This product effectively expands the opening by sandwiching a rubber ring with a C-shaped cross-section between two inclined iron plates. 【Features】 ■ Easy operation without tools ■ Cost-effective with rubber ring replacement *For more details, please refer to the catalog or feel free to contact us.

Rokubun Rubber's rotary seals have been developed and sold based on our customers' usage conditions. These seals have been designed and developed by identifying issues through discussions with customers to meet their needs. Over the years since the initial development began, we have expanded our product lineup to accommodate a wide variety of usage conditions across different fields. This catalog summarizes the rotary seals that have been developed through such a history. These seals are designed to flexibly address areas that cannot be managed or improved by conventional general oil seals, prioritizing the satisfaction of our customers' usage conditions. Rokubun Rubber aims to be a manufacturer that can propose further improvements and wishes to develop new products together with our customers.

Rokubun Rubber's industrial rubber products are active in various fields such as iron and steel, shipbuilding, gas, energy, civil engineering, railways, and pharmaceuticals. Rubber products, being elastic materials, hold infinite possibilities that cannot be matched by other materials. We will continue to strive to provide our customers with even safer and more secure products, challenge new initiatives as a manufacturer of industrial rubber, and focus on the development of new products. We kindly ask for your continued support and encouragement. 【Business Activities】 ■ Manufacturing and sales of industrial rubber products, other rubber products, industrial resin products, and other resin products. *For more details, please refer to the PDF document or feel free to contact us.