Maintenance Engineering

Making full use of our accumulated experience and technological skill throughout our long history, we offer installation instruction of rubber expansion joints, rubber flexible joints, and belt-type rubber expansion joints, as well as maintenance engineering such as replacing and repairing rubber lining. Additionally, we conduct survey inspections of rubber expansion joints, rubber flexible joints, and belt-type rubber expansion joints. Please contact us for details.

Primary Maintenance Construction Sites

Nuclear Power Plants, Thermal Power Plants, Geothermal Power Plants, Chemical Plants, Water Treatment Facilities, Sewage Treatment Facilities, Drainage Pumping Stations, Ships, Tank Trucks

Primary Maintenance

DMII Type for both exposure and embedding (Straight Type)

Over the years, we have conducted survey inspections of rubber expansion joints in nuclear and thermal power plants. Our “Aging Judgment Standards” which are based on our years of rich accumulated data have received high acclaim by domestic power companies.

Maintenance construction of condenser water box rubber lining in nuclear and thermal power plants

We work under the umbrella of plant manufacturers and construction companies for replacing and repairing of condenser water box rubber lining in nuclear and thermal power plants.

Inner surface of condenser water box cover detached from condenser (Three parallel units)

Outer surface of condenser water box cover detached from condenser

Inspecting flange surface of condenser water box cover for pinholes

Molding rubber lining for inner surface of condenser water box

Other Maintenance Engineering

Rubber Expansion Joints

Aging inspection, surveying of replacement products, installation instruction, and partial repairing

Rubber Lining

Aging inspection, inspection and repair of condenser water box, seawater piping, butterfly valves, storage / reaction / stirring tanks, hydrochloric acid-caustic soda ships, and tank trucks

Intermediate Rubber Expansion Joints (Belt Type)

Aging inspection, endless joints, partial repairs