List of 管 products
271～315 item / All 6626 items
We will contribute to a "safe and secure" future through continuous technological innovation!
- Piping materials (plastic pipes)
High-density polyethylene pedestrian passage (pedestrian opening) "EP-Sleeve" - Lightweight, high strength, and a proposal for labor-saving! [Coming soon]
- Formwork material
- Frame construction accessories
- Piping materials (plastic pipes)
Production will start" Polyethylene sleeve / access hole (access port) "EP-Sleeve
Polyethylene Human Passage (Human Passage Opening) EP-Sleeve ■ High Pressure Resistance: Due to its smooth double structure with a corrugated inner surface, it is strong against impacts and external pressure, possessing excellent flat strength. ■ Lightweight Material: Compared to rigid PVC pipes, it is lightweight. It enhances transportation and work efficiency, contributing to "labor-saving" at construction sites. ■ Rust Resistant: Made of high-density polyethylene, it is safe and secure for installation in water areas! ■ Cold and Chemical Resistant: Compared to rigid PVC pipes, it is suitable for installation in extremely cold regions and shows no deterioration against most chemicals. The polyethylene sleeve "accelerates the 'efficiency' of the site with its 'lightweight'!" A material that combines high pressure strength with "lightweight," which leads to direct construction usability. In particular, while rigid PVC pipes weigh about 53 kg/m, the polyethylene sleeve weighs about 17 kg/m, showcasing an overwhelming weight difference! We guarantee a definite improvement in work efficiency at construction sites. Furthermore, it also contributes to reducing the burden on workers and lowering accident risks, enhancing safety!
Pipe fittings for piping that do not require prevention of leakage in drainage and mechanical equipment, etc.
- Fittings
Protective tube for external cables with improved durability and fatigue characteristics.
- Foundation construction
- others
- grout
A flexible joint with excellent flexibility, seismic resistance, and vibration resistance, suitable for long-term installation.
- Water and sewerage pipe fittings
At Benkan Kiko, we also manufacture steel prefabricated piping called "header pipes."
- Fittings
![[Example] Glass tube DURAN(R) for p...](https://image.www.ipros.com/public/product/image/9ad/2000460900/IPROS27530050241557078277.jpeg?w=280&h=280){kind=small}
A glass tubular photobioreactor system capable of long-term stable operation using DURAN(R) glass tubes.
- Other biomass
Easily installable wastewater pipe fitting with a mechanical fixation type that does not require adhesive and allows for flexible sealing.
- Fittings
We will solve the difficult issues related to PVC piping necessary for hydroponic cultivation systems using the technology developed over more than 50 years in the development of septic tank piping pa...
- Water supply facilities
It is possible to improve the seismic resistance of pipeline connections at low cost. The area occupied by ground work is small, which reduces the impact on traffic and other factors.
- Water Supply Facilities
- Prefab
- Prefabricated Concrete Products
Achieve smooth drainage with a slotted drainage inlet! A perforated pipe that is also resistant to clogging.
- Piping and insulation
2025 Good Design Award" winner! Mitsuba Drain has also been selected as "My Chosen Item.
The announcement of the 2025 Good Design Award (organized by the Japan Design Promotion Association) was made on October 15, 2025. This time, Nihon Doren Co., Ltd. received two Good Design Awards. Additionally, the focused drainage pipe "Mitsuba Doren" was selected for the special selection "My Chosen Item" by the Good Design Award judging committee. It has been highly evaluated as an excellent design that merges traditional wisdom with modern technology.
Completely solve the problems of aging water pipes! Restoration of function, improvement of durability, and reinforcement are possible.
- Special Construction Method
Integrated rehabilitation of sewer pipes! We revive various pipelines in daily life without excavation.
- Special Construction Method
Hydrothermal synthesis, nanomaterials, zeolite synthesis, subcritical water, supercritical CO2, supercritical methanol, supercritical ethanol reactors, reaction tubes, autoclaves.
- Related Equipment
- Other biomass
- Rare metal recovery
Seismic reinforcement of pipelines is achieved through flexible and expandable anti-detachment fittings.
- Water and sewerage pipe fittings
It is a pipe and pipe fittings for sprinkler systems made of aluminum composite polyethylene.
- Water and sewerage pipe fittings
- Prefab
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)
Maximum operating temperature 80℃. Smooth connection with existing pipes during repair and renovation of hot water piping. Installation is possible even in narrow spaces [Case study video now availabl...
- Fittings
We will finish the drilling neatly when installing the saddle-type water supply valve.
- Piping Equipment
We specialize in branching processing of stainless steel pipes.
- Sanitary fixtures
- others
Custom-made branch piping at a low price! Difficult branch numbers and shapes that are challenging with molded products are also acceptable!
- Water Treatment
- Unit and other construction
It is a stainless steel V-shaped screen pipe that allows for backwashing.
- Nursing care products
We process glass tubes used for internal visualization and experimental equipment into products! We can shape them into various forms using various processing techniques. It is also possible to sell t...
- others
For alloy steel fittings for piping, please inquire with Benkan Kiko, the number one in domestic performance.
- Prefab
- others
- stone
We have uploaded an introduction page about alloy steel fittings for piping.
At Benkan Japan, we leverage our long-standing sourcing experience in material procurement to provide our customers with high-quality alloy steel fittings for piping that they can use with confidence. We assist with the design of your plant piping. For more details, please check the related product page.
In response to the demands of the times, we have continuously evolved in pursuit of customer satisfaction.
- others
It provides detailed information on the main uses, guidelines for selecting body materials, and the characteristics of each material.
- Fittings
Even if there are no drainage pipes nearby and the piping route is uneven, drainage is still possible! (At a certain station building)
- Unit Products
- pump
- Drainage and ventilation equipment
For glass ducts. Insulated with 25mm thick glass wool, fully equipped to prevent condensation.
- glass wool
- Insulation work
Infrastructure technology that protects lifelines - Seismic isolation joints
- Expansion joint hardware
- Vibration isolation, vibration control, and earthquake resistance construction
- Water and sewerage pipe fittings
Achieves thinness and lightweight. Excellent chemical resistance, safe even at high temperatures of 100°C. Samples are also available for food factories and kitchen facilities.
- Piping and insulation
Notice of participation in the 'Construction Technology Fair 2025 in Chubu' from December 4 (Thursday) to December 5 (Friday), 2025.
Fuji Chemical Co., Ltd. will be exhibiting at the "Construction Technology Fair 2025 in Chubu" held at Port Messe Nagoya. The exhibition aims to promote the construction-related industry, advance technological development, and expand business transactions. Our booth location is "K33". We sincerely look forward to your visit.
High-pressure polyethylene ribbed pipe, Dipolin Howell pipe
- Dam construction
- Railway Construction
- Roof and gutter construction
Achieve lightweight and low cost! Mechanical pipe fittings with higher durability than SUS 316!
- Fittings
- Piping materials (copper pipes, cast iron pipes)
Simultaneously cleans, disinfects, and deodorizes! Perfect drainage pipe cleaning with no residues left behind is possible.
- Sanitary fixtures
- cleaning
Low reaction force, large expansion and contraction, corrosion resistance, wear resistance, weather resistance, and vibration resistance to meet various needs.
- Water and sewerage pipe fittings
- Interior construction
Response to stagnant water sand layers! A small-diameter pipe jacking method that can control the amount of soil and sand intake during advancement.
- Drilling Machine
- Special Construction Method
Prevent short circuits with insulating tubes! Thermocouples with excellent mechanical strength and chemical/physical properties.
- media
Eco-friendly reuse concept! We provide total support with abundant materials and a network.
- Water and sewerage pipe fittings
Because it's reusable, it's environmentally friendly! Stainless steel temporary piping system REPCS - for temporary water main construction during sewer work and changes to water pipelines!
For the renewal and maintenance of existing pipelines! Temporary piping rental service REPCS is a service that provides temporary materials needed for temporary construction of water supply pipelines, such as changes to water pipes due to sewer construction. This service, uniquely devised by our company, started in 1989 and is now adopted by over 85% of municipalities nationwide, from Hokkaido to Kyushu. We offer the "G type" for speedy installation in three steps, as well as the standard "H type." 【Features】 ■ Easy to connect ■ Built-in disconnection prevention mechanism ■ Excellent pressure resistance ■ Reliable safety ■ Smooth shipping response for peace of mind at any time *For more details, please refer to the catalog or feel free to contact us.
Are you experiencing issues such as wear during the air transport or slurry transport of powder particles, which has caused holes to form in the piping?
- Piping Equipment
High-performance rubber joint built-in! Excellent high-strength pipe that meets diverse performance requirements.
- Piping materials (concrete pipes)
From pipe to pipe! Transforming the PVC pipes that were just buried into resources for a precious future!
- Other resource recycling
Lineup of items such as '15cc centrifuge tubes 17φ×124mm' and '96-well flat bottom plates'!
- others
If you want to attach a PAD (backing plate) to a pipe fitting, please consult Benkan Kiko!
- Fire extinguishing equipment
This can be used when you want to temporarily stop the inflow (outflow) from the PVC pipe. It can also be used as a replacement for the screw-type cap.
- Water stop
- Agricultural civil engineering works
Leave it to us for residential sanitation, air conditioning, and plumbing equipment!
- others
Let's complete the plumbing work cheaply and quickly! However, when excavation is not possible, we will use the special installation pipe pushing method.
- Waterproofing work