Our handled manufacturers! A wide range of civil engineering materials available.
A model suitable for drinking water piping that ensures safety and security due to the sterilizing effect of copper.
A water stop valve with excellent water-tightness that can be installed at any point in the piping.
A best-selling model with extensive experience in piping for large air conditioning units, from residential to commercial use!
A comprehensive catalog featuring various building piping materials such as pipes, chambers, and tubes.
Corrosion-resistant piping with over half a century of proven performance in chemical products.
Select materials suitable for the operating environment! Pumping pipes compatible with various pump manufacturers.
A groundbreaking product that changed the common understanding of steam traps, contributing to CO₂ reduction by reducing steam usage: Columnar Hole Type [Steam Saver].
A special flange that allows size conversion with space-saving design.
A lineup of products that are translucent and easy to confirm adhesion, etc.! Around the pump.
[Request for Price Revision] CK Screw-in Steel Pipe Fittings/Pipe Nipples/Iron Sockets/CKe White Pipes
Introduction of high-pressure flanges for hydraulic piping for internal welding (Perfect Flange)!
A diverse range of products that meet established quality and supply levels, accommodating free-thinking ideas! Shear reinforcement bars that also excel in workability.
Lightweight, compact, and suitable for installation in narrow spaces! Prefabrication significantly shortens construction time!
A simple structure that instantly responds to fluid movement! A foot valve with no worries about trouble.
Ideal for cold and warm water applications! Durable and corrosion-resistant polyethylene pipes for air conditioning piping.
100% plant-based. It is a powder coating that is resistant to corrosion and abrasion.
Protect the cable ducts under the runway! Achieve 1 atmosphere waterproofing and airtightness with easy installation.
No need for pipe insulation removal or threading work! Connection with cross-linked polyethylene pipes is achieved with a single fitting!!
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!
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!!
Connection possible without solvent application or fusion work! Since repairs and connections with existing pipes can be performed using mechanical methods, construction time is significantly reduced!
PVC pipes can be connected to coated steel pipes with just one joint! No need for tedious coating removal work, significantly reducing construction time!
You can easily connect to PVC fittings, leaving the cast iron pipes for drainage.
High-performance expandable joints developed by stainless steel processing experts!
This is an air valve that protects stable water flow in pipes with high quality born from the pursuit of functionality and rationality!
Assembly in 10 minutes! Enables quick distribution of emergency water during disasters.
Would you like to rent a submersible pump along with REPCS materials? We have a wide range of pumping equipment tailored to meet your needs and piping routes.
New refrigerant compatibility, black insulation material, and piping for a skeleton ceiling! Achieving harmony with architectural design.
Solve condensation problems with 30mm insulation in high temperature and high humidity environments! Introducing flame-retardant coated copper pipes for refrigerants.
Customized strengths available to match the requested testing/research and development, ranging from basic manual and semi-automatic systems to those equipped with [automatic sample transport/automatic burr removal mechanisms/constant temperature chambers], etc.
Dimensions and quality specified by JIS standards! Flanges that cover low vacuum to high vacuum ranges.
This is a butt-welded pipe fitting compatible with stainless steel pipes for piping (JIS G 3459).
Non-toxic, harmless, non-drying, and easily washable paste sealant. Comes with a brush on the lid. Heat resistance temperature -46°C to 260°C. Usable in food processing production facilities.
A check valve specifically for efficient and safe sewage aeration blowers.
Drainage pipe for landslide prevention! Collection efficiency = water volume × collection capacity × water flow capacity!
We offer a variety of products, including flexible and expandable pipes made of steel and stainless steel, as well as various shaped pipes.
Due to the increasing demand, we have added a new series for high-pressure washing and civil engineering work!
Square steel pipes made of architectural structural stainless steel that allow for a variety of surface finishes and can serve as finishing materials.
For embankments such as railways, roads, and residential land! It suppresses the rise of groundwater levels during rainfall and dissipates excess pore water pressure during earthquakes, enhancing the rain resistance and seismic resistance of the embankments!
Various applications such as water supply, drainage, and cooling water! Introduction of long-lasting flanges with a wealth of proven results.
Excellent durability, space-saving model! Equipped with a flow control function suitable for water conservation.
Exceed pipes, which excel in thermal insulation and heat retention performance, are suitable for water supply and hot water piping materials.
Many achievements in steel pipe foundations for fences and protective barriers!
Various variations of exterior products that pursue safety and convenience, which can be differentiated according to installation conditions.
SMS seal ring silicone blue! Heat-resistant silicone gasket for screw sheet connection.
A rich lineup including SL1 type 90° elbows, ST1 type tees, and SU1 type unions!
Required long-lasting water pipes! And cost reduction for construction expenses.
Achieve weight reduction and cost savings on materials! It demonstrates excellent machinability even with thin walls.
Leave plumbing materials such as faucet fittings, copper pipe adapters, and copper pipe fittings to us!
Processing is possible even outside the processing range! All products undergo air pressure testing after manufacturing.
Support for on-site population reduction! We propose considering the looping of piping and calculating friction losses.
A lineup of all 4 types! Piping materials that can be selected according to the intended use.
We also provide technical materials on the proper handling of flexible tubes!
General industrial welding flex has been added to the price list! Same-day shipping is available. *Price list available.
Introducing bellows for 30K vibration-resistant joints that can be used for long periods even under harsh conditions!
Ground-mounted foot valve that can be maintained on the ground.
Compact design for 80A and below! All cast iron foot valve with excellent water-tightness.
A single-leaf foot valve made entirely of cast iron with low fluid resistance and no concerns about trouble.
All-brass foot valve with excellent pressure resistance performance when the pump is stopped.
Our unique technology features a three-part structure! A stainless steel foot valve capable of accommodating various requests.
A cast iron essential part foot valve with a three-part structure using a pressure-resistant O-ring in an open OTV configuration.
Introducing steel plate T-type and Y-type strainers that are installed in front of pumps and nozzles!
A specialized company for pipe bending processing that can handle small quantities of various types and complex bends!
Turn surplus industrial water into drinking water! Achieve annual savings of about 90 million yen in water bills!
Draw up and filter groundwater with your own water supply system, ensuring safe, secure, and delicious drinking water. It not only reduces costs but also serves as a disaster prevention measure.
Not only achieving about a 20% cost reduction with a full maintenance contract, but also realizing labor savings! Contributing to disaster prevention measures as a secondary water source.
Water produced by a home water system can be used for various purposes, including drinking water, washing hands, bathing, swimming pools, toilets, and car washing.
With a private water supply system, it is possible to implement disaster prevention measures while reducing costs instead of spending money on disaster prevention measures.
A must-see for those who are worried about disaster prevention measures and securing water during emergencies! We will introduce numerous examples of securing water sources during disasters and reducing costs for manufacturing water using well water.
The technology of Kowa Industries, active in your local area! Centered around 12 factories, we leverage each of our technologies to enhance customer satisfaction.
Faster and safer! Solving challenges in sewer pipe rehabilitation work and contributing to improved work efficiency and quality!
This is a heat exchanger used in commercial laundry dryers. It features copper tubes and aluminum fins, making it a compact and high-efficiency heat exchanger.
Recommended for extending the lifespan of the check valve installed near the pump discharge! It is a wear-resistant swing check valve.
Consistent safety, reliability, and cleanliness! A safe and clean piping system.
The connection of polyethylene pipes does not require an in-core.
The energy applied to the pipe is released due to its flexibility.
The connection of the polybutylene pipe does not require an in-core.
No need for pipe coating removal or threading work! Thanks to the mechanical method, connecting to existing pipes and working in tight spaces is easy!
No need for coating removal or threading work! Connection with polyethylene pipes achieved with a single fitting!!
No need for coating removal or threading work on the pipe! Connection with polyethylene pipes is also possible without fusion, allowing for dissimilar pipe connections!!
No need for pipe coating removal or threading work! PVC pipe connections can be made without applying adhesive, allowing for connections with different types of pipes!!
No need for pipe coating removal or threading work! Achieve connection with steel pipes using a single joint!!
No need for coating removal or threading work! Connection with polybutylene pipes achieved with a single fitting!!
No need for coating removal or threading work on the inner and outer coated steel pipes! A convenient mechanical joint that does not require disassembly, featuring a disengagement prevention function and high water tightness.
The inner and outer coated steel pipes can be connected with a single joint! A convenient non-dismantling mechanical joint that eliminates the need for troublesome coating removal work during installation.
Convenient for connecting coated steel pipes and steel pipes! Can be installed without removing the coating, and the mechanical joint with slide connection allows for smooth repair work without disassembly.
Cast iron pipes and internally and externally coated steel pipes can be connected with just one joint! A convenient, non-dismantling mechanical joint that eliminates the need for coating removal work.
Significant reduction in construction time without the need for fusion work! The mechanical method allows for construction in water areas and tight spaces!
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!
Connection possible without flanges! No need for threading or flange processing of steel pipes, allowing for connections between different types of 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!!
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!
Significant reduction in construction time without the need for fusion work! Mechanical methods enable construction in wet areas and confined spaces!!
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!