List of Water and sewerage materials products

Transform your actual office into a safe and secure space on the network floor! Introducing the amazing process that enables earthquake-proofing in no time.

• Free access floor
• Wiring devices
• Water and sewerage pipe fittings

The low-cost realization of a strainer with a large opening rate (slot size 0.5mm to 3.0mm) has been achieved!

• Piping materials (plastic pipes)

We offer a drainage pipe for water drainage boring work with excellent drainage efficiency and a slit width of 1.0mm!

• Piping materials (plastic pipes)

RoHS2 compliant - ProBlade oil-resistant version! Clear type for easy visual inspection of fluids.

• Piping materials (plastic pipes)

For piping in narrow areas such as the secondary side of fuel for agricultural and industrial machinery! A flexible and durable oil-resistant tube that is easy to bend and hard to break.

• Piping materials (plastic pipes)

Using rigid urethane foam! A thermal insulation pipe that demonstrates high performance even in harsh environments.

• Piping materials (copper pipes, cast iron pipes)

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.

• Piping materials (copper pipes, cast iron pipes)

Turn surplus industrial water into drinking water! Achieve annual savings of about 90 million yen in water bills!

• Piping materials (copper pipes, cast iron pipes)
• Water supply facilities
• Water Treatment

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.

• Piping materials (copper pipes, cast iron pipes)

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.

• Piping materials (copper pipes, cast iron pipes)

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.

• Water Treatment
• Power generation facilities
• Piping materials (copper pipes, cast iron pipes)

We provide one-stop solutions for issues ranging from the establishment and renewal of water treatment facilities, consultation on disaster prevention (water outage) measures, to the streamlining of e...

• Water Treatment
• Power generation facilities
• Piping materials (copper pipes, cast iron pipes)

A rich lineup including SL1 type 90° elbows, ST1 type tees, and SU1 type unions!

• Piping materials (copper pipes, cast iron pipes)

Sharp finish and performance! Split valve that can also be operated with a multi-cycle device.

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

Safe filter replacement! Single-use split valve made from pharmaceutical-grade plastic material.

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

A simple structure that instantly responds to fluid movement! A foot valve with no worries about trouble.

• Piping materials (copper pipes, cast iron pipes)

A foot valve that is resistant to the adhesion of water scale and excels in hygiene.

• Piping materials (plastic pipes)

Compact design for 80A and below! All cast iron foot valve with excellent water-tightness.

• Piping materials (copper pipes, cast iron pipes)

A single-leaf foot valve made entirely of cast iron with low fluid resistance and no concerns about trouble.

• Piping materials (copper pipes, cast iron pipes)

All-brass foot valve with excellent pressure resistance performance when the pump is stopped.

• Piping materials (copper pipes, cast iron pipes)

RoHS-compliant flange without the presence of lead, hexavalent chromium, cadmium, etc.

• Water and sewerage pipe fittings

Our unique technology features a three-part structure! A stainless steel foot valve capable of accommodating various requests.

• Piping materials (copper pipes, cast iron pipes)

A cast iron essential part foot valve with a three-part structure using a pressure-resistant O-ring in an open OTV configuration.

• Piping materials (copper pipes, cast iron pipes)

A highly reliable assembly manhole designed based on ergonomics!

• Manhole body
• Rainwater tank

● It has excellent shock resistance due to its three-layer structure. ● It has graduated markings. ● It features a sleek, tapered-free cylindrical design.

• Rainwater tank

A rich variety is available!

• Piping materials (copper pipes, cast iron pipes)

Flexible tube with waterproof and oil-proof specifications due to a vinyl cover.

• Piping materials (copper pipes, cast iron pipes)

We also accept assembly of terminal parts!

• Piping materials (copper pipes, cast iron pipes)

It has strong holding power, is silent, and bends flexibly.

• Piping materials (copper pipes, cast iron pipes)

Flexible tube that is rich in flexibility and lightweight.

• Piping materials (copper pipes, cast iron pipes)

There are vertical walls and sloped walls with a flange on the manhole side block according to JIS standards. The joint surfaces are bonded with mortar.

• Manhole body

No need for in-house production of octopus foot piping; just join the parts without welding or screwing.

• Water and sewerage pipe fittings

The outer covering is UV-cut! A high weather-resistant and high heat-insulating material for UV protection.

• Piping materials (plastic pipes)
• others

Many achievements in steel pipe foundations for fences and protective barriers!

• Piping materials (copper pipes, cast iron pipes)

A lineup of sizes from 100L to 3,000L! Lightweight and easy-to-handle transport tanks.

• Rainwater tank
• others

Our reliable technology supports the water supply business.

• Water and sewerage pipe fittings
• Other measuring instruments

Compared to conventional methods, welding man-hours have been reduced by 1/6 (83%)!

• Piping materials (concrete pipes)
• Piping Equipment

The introduction cost is low, and the construction period is short, yet it's practical!

• Drainage and ventilation equipment
• Flood prevention facilities, fire tanks, and flood control ponds
• Drainage and water removal

To prevent cutting accidents! This is where Welman is particular about processing precision!

• Piping materials (copper pipes, cast iron pipes)

We also introduce tank names, dimensions, tree species, and more! We have compiled a list of our delivery records for wooden water tanks.

• Special wooden structures
• Rainwater tank
• Water supply facilities

Conducted vibration experiments on a 3t (water volume) wooden tank designed using conventional methods! Introducing an overview of the vibration experiments on the wooden water tank.

• Special wooden structures
• Rainwater tank
• Water supply facilities

Confirmed that there are no issues with the water storage function! Here is an introduction to the situation of wooden water tanks during the Great East Japan Earthquake.

• Special wooden structures
• Rainwater tank
• Water supply facilities

By effectively utilizing wood, we can revitalize forests and contribute to the reduction of greenhouse gases!

• Special wooden structures
• Rainwater tank
• Water supply facilities