List of Water and sewerage materials products

100% recycled gypsum derived from waste gypsum boards is reused as raw material, achieving effective carbon neutrality during manufacturing!

• Gypsum board and moldings

Since the construction-generated soil will be recycled on-site, the disposal costs for leftover soil and the costs for new purchases will be significantly reduced. 【Disaster Prevention】

• Special Construction Method

PVC pipes and steel pipes can be connected without flanges! No need for flange processing or welding of steel pipes, achieving simplified construction and cost reduction!

• Fittings
• Piping materials (copper pipes, cast iron pipes)
• Piping materials (plastic pipes)

Achieved a significant reduction in work time for 'housing joints' that can be connected with two bolt fastenings!

• Sanitary fixtures
• Water and sewerage pipe fittings

Compared to welding with screws, welding with flanges significantly reduces piping work time. It can be installed by tightening bolts.

• Sanitary fixtures
• Water and sewerage pipe fittings
• Water Supply Facilities

No need for pipe coating removal or threading work! Achieve connection with steel pipes using a single joint!!

• Fittings
• Piping materials (copper pipes, cast iron pipes)
• Piping materials (plastic pipes)

No need for fusion work or in-core insertion work! High-density polyethylene pipes can be connected to water supply polyethylene pipes with a single fitting!

• Fittings
• Piping materials (copper pipes, cast iron pipes)
• Piping materials (plastic pipes)

No need for fusion work or adhesive application! Can be used in water areas, for repairs, and connections with existing pipes, significantly reducing construction time!

• Fittings
• Piping materials (copper pipes, cast iron pipes)
• Piping materials (plastic pipes)

A duct fan that can achieve almost uniform temperature indoors at the ceiling, middle, and floor levels! By eliminating temperature differences in indoor air, it increases the efficiency of the air co...

• Privacy louvers and louver shutters
• Air conditioning
• Water and sewerage pipe fittings

Noise reduction effect SYM cable series

• Elevator
• Water and sewerage pipe fittings

High-quality pressure relief and back pressure valves with a self-supporting force balance based on a metal diaphragm! Comprehensive catalog available now!

• Drainage and ventilation equipment
• Water and sewerage pipe fittings
• stone

Construction is possible only on the inside of the manhole! Inner weight method.

• Manhole body
• Special Construction Method

Introducing a variety of products such as stop valves for copper pipes, manual expansion valves, and stop valves with flare nuts.

• Piping materials (copper pipes, cast iron pipes)
• Piping materials (plastic pipes)
• Water and sewerage pipe fittings

Patent-acquired product! A convenient trap that refreshes the concept of traditional drainage traps.

• Drainage and ventilation equipment
• Bathroom Supplies
• Water and sewerage pipe fittings

High-performance gate opening and closing machine series suitable for medium and small-scale sluices.

• Watergate
• Automatic Closing Device

Certified by the Japan Fire Equipment Safety Center! Achieving "no maintenance required for half a century."

• Flood prevention facilities, fire tanks, and flood control ponds

Quickly repair without stopping the flow of water or oil! Crimp sockets for steel pipes, copper pipes, and PVC pipes.

• Water and sewerage pipe fittings

Collect rainwater underground to suppress urban flooding! Propose effective use of rainwater as domestic and industrial water! This is an environmentally friendly new method.

• Rainwater infiltration facilities
• Flood prevention facilities, fire tanks, and flood control ponds
• Civil Engineering Method

Arrow boards and cushion drums that guide the paths of vehicles and pedestrians from a distance to ensure safety.

• Safety and consumables
• Manhole body

Just wrap it around and it instantly stops leaks!! "Leak Stopper"

• Water and sewerage pipe fittings

No need for fusion work or adhesive application! Can be used in wet areas and for repairs, and can connect to existing pipes, significantly reducing construction time!

• Fittings
• Piping materials (copper pipes, cast iron pipes)
• Piping materials (plastic pipes)

No need for fusion work or in-core insertion work! High-density polyethylene pipes can be connected to water supply polyethylene pipes with a single fitting!!

• Fittings
• Piping materials (copper pipes, cast iron pipes)
• Piping materials (plastic pipes)

No need for fusion work! With the mechanical method, connections can be made without being affected by the existing pipes or construction environment, such as water areas!

• Fittings
• Piping materials (copper pipes, cast iron pipes)
• Piping materials (plastic pipes)

Significant reduction in construction time without the need for fusion work! Mechanical methods enable construction in wet areas and confined spaces!!

• Fittings
• Piping materials (copper pipes, cast iron pipes)
• Piping materials (plastic pipes)

Connection without flanges is possible! No need for threading or flange processing of steel pipes, and it allows for the connection of high-density polyethylene pipes with different types of pipes!!

• Fittings
• Piping materials (copper pipes, cast iron pipes)
• Piping materials (plastic pipes)

Significant reduction in construction time without the need for fusion work! The mechanical method allows for construction in water areas and tight spaces!

• Fittings
• Piping materials (copper pipes, cast iron pipes)
• Piping materials (plastic pipes)

Connection possible without flanges! No need for threading or flange processing of steel pipes, allowing for connections between different types of pipes!!

• Fittings
• Piping materials (copper pipes, cast iron pipes)
• Piping materials (plastic pipes)

A reliable double structure with excellent durability! Lightweight and easy to cut flexible conduit material for electrical cables.

• Piping materials (plastic pipes)
• Piping Equipment
• Piping and insulation

For protecting and bundling cables! A slotted wave-shaped protective tube with a wide slit structure that makes it easy to cover.

• Piping materials (plastic pipes)
• Piping Equipment
• Piping and insulation

Our technology is active from the industrial sector to everyday life!

• Unit Products
• Subsidiary materials
• Piping materials (copper pipes, cast iron pipes)

Leave it to us for professional hardware and tools!

• Work tools
• Safety and consumables
• Piping materials (plastic pipes)

An incredibly convenient pipe materials store! We offer three types of emergency delivery tailored to the urgency of our customers.

• Piping materials (copper pipes, cast iron pipes)
• Other construction services

We handle a wide range of products from hundreds of manufacturers!

• Piping materials (copper pipes, cast iron pipes)
• Water and sewerage pipe fittings
• Fittings

Can be installed in both existing and new setups! A floating suppression method that does not affect the manhole during normal conditions.

• Manhole body
• Ground foundation construction method
• Earthquake-resistant construction method

A specialized company for pipe bending processing that can handle small quantities of various types and complex bends!

• Water and sewerage pipe fittings
• Piping materials (copper pipes, cast iron pipes)

Select materials suitable for the operating environment! Pumping pipes compatible with various pump manufacturers.

• Piping and insulation
• Piping materials (copper pipes, cast iron pipes)
• Piping materials (plastic pipes)

High reliability and speedy installation work! Introducing product features and lineup.

• Water and sewerage pipe fittings

Aluminum that does not corrode! Cost reduction too!

• Water and sewerage pipe fittings

Leave all matters related to various steel pipes and their associated fittings to us!

• Piping materials (copper pipes, cast iron pipes)
• Piping materials (plastic pipes)

Convenient for shortening construction time! We will unitize piping materials according to the drawings and ship them! Total costs will also be reduced!

• Piping materials (plastic pipes)
• Fittings

The technology of Kowa Industries, active in your local area! Centered around 12 factories, we leverage each of our technologies to enhance customer satisfaction.

• Bridge Materials
• Piping materials (copper pipes, cast iron pipes)

Consistent safety, reliability, and cleanliness! A safe and clean piping system.

• Piping materials (copper pipes, cast iron pipes)
• Piping Equipment

Introducing a variety of flexible hoses such as blade hoses, straight hoses, and corrugated hoses.

• Piping materials (plastic pipes)

Introducing a variety of flexible hoses, including union color types, hexagonal nipples, and lever coupling types.

• Piping materials (copper pipes, cast iron pipes)

Just by layering, a strong structure is built! Suppression of rainwater runoff and effective utilization!

• Rainwater tank
• Rainwater infiltration facilities
• Other civil engineering works

Lightweight and compact, so transportation is smooth! Just cross and stack each layer!

• Rainwater tank
• Rainwater infiltration facilities
• Other civil engineering works

High void ratio! Plastic storage material that efficiently collects rainwater. Numerous construction examples introduced!

• Rainwater tank
• Rainwater infiltration facilities
• Other civil engineering works