List of 管 products
1036~1080 item / All 6627 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!
Active in various fields! Case studies of the focused type underground drainage pipe "Mitsuba Drain".
- Sanitary fixtures
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.
Active in various sites! Case studies of the focused-type underground drainage pipe "Mitsuba Drain."
- Sanitary fixtures
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.
Original from Future Industry! A site has been created where you can easily search for a wide variety of saddles!
- others
The "Saddle Search" site for piping and cables has opened on the Future Industrial HP!
The "Saddle Search" site for piping and cables has opened on the Future Industry HP! You can easily search for saddles. We will propose products that meet your needs with a wide variety of sizes and selections. Please check the related catalog PDF for details.
Active in various fields! Installation examples of the focused-type underground drainage pipe "Mitsuba Drain."
- Sanitary fixtures
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.
Active in various fields! Case studies of the focused-type underground drainage pipe "Mitsuba Drain."
- Sanitary fixtures
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.
The material can be made of stainless steel or titanium depending on the fluid, ensuring a long lifespan!
- Heat exchanger
Active in various fields! Installation examples of the focused-type underground drainage pipe "Mitsuba Drain"
- Sanitary fixtures
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.
A 150L water storage tank system! It supports the immediate securing of drinking water after a disaster and the early recovery and continuation of business activities.
- Disaster prevention supplies
Active in various fields! Case studies of the focused type underground drainage pipe "Mitsuba Drain."
- Sanitary fixtures
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.
One-shot cleaning for stubborn clogs and odors! Useful when the flow becomes poor and unpleasant smells occur.
- Safety and consumables
We manufacture and sell products made from alloy pipes such as copper and brass.
- Faucet fittings
- Subsidiary materials
Achieve free cooling and heating with a two-pipe system! Enhance air conditioning capacity! Easy installation and reduced construction time!
- Heating and cooling equipment and facilities
- others
Released on April 1! Introduction of the latest version of CADPAC-2D/3D and Zukan-Ou" and "Starting in May, sequentially held! Announcement of the 3D acquisition seminar.
- Drawing, tracing, CAD
- Other CAD
- Database
Maximum operating pressure 6.0 MPa! This pipe is optimal in terms of characteristics and workability, especially for mountain piping that requires high pressure!
- Railway Construction
Exhibits excellent workability for processes such as drawing, expanding, and bending! We can manufacture pipes in the steel grade you require.
- Piping materials (copper pipes, cast iron pipes)
Achieve free cooling and heating with a 2-pipe system! Enhance air conditioning capacity!
- Duct related equipment
- Heating and cooling equipment and facilities
- others
Ideal for cold and warm water applications! Durable and corrosion-resistant polyethylene pipes for air conditioning piping.
- Piping materials (copper pipes, cast iron pipes)
- Piping materials (plastic pipes)
For inquiries about purchasing sanitary piping, valves, or sanitary tanks, please contact the SUS Pipe Store.
- Piping and electrical wiring materials
A low-pressure free-type expansion pipe optimal for absorbing displacement weight as much as possible.
- Piping materials (copper pipes, cast iron pipes)
- Piping materials (plastic pipes)
Minister of Land, Infrastructure, Transport and Tourism certified construction method! A lineup of pile diameters and wing diameters that can accommodate various structures.
- Pile and foundation work
- Civil Engineering Method
Deep exploration is now possible! It is compact and lightweight at about 15 kg, making it portable with one hand.
- Other measuring instruments
Japan Radio Radar Detection Device (Reinforced Bar Detector) RC Radar Handy Search NJJ-200k - A radar specialty store where you can purchase the detection device at a reasonable price!
- maintenance
- Other measuring instruments
- Measurement and analysis equipment leasing and rental
Lineup of four sizes of molded products! A gate connecting the irrigation channel and the rice field, with water volume adjusted by a control panel.
- Piping and insulation
- Detailed exploration of underground buried objects and voids is possible. - Automatic detection of buried pipes during pipe exploration! - Visual analysis is possible using 3D software.
- Consulting companies
We provide pipe flanges that cater to various industries.
- Fittings
Ensuring seismic performance by rehabilitating aging pipes! There is no risk of damaging nearby buried objects.
- Earthquake-resistant construction method
Rent the GSSI (USA) radar exploration device (rebar locator) StructureScan SIR-EZHR at an affordable price! *Standard large tires included!
- maintenance
- Other measuring instruments
- Measurement and analysis equipment leasing and rental
Not only straight bowling, but also three-dimensional bowling that combines straight lines and curves is possible!
- Ground foundation construction method
STOP!! Corrosion leak and odor accident in the drainage piping system joints!
- Drainage and ventilation equipment
The sound-absorbing layer uses soft polyurethane foam with sound-absorbing properties.
- Soundproofing Sheet
- Sanitary fixtures
Optimal for energy saving, high brightness 110lm/W, alternative to FPL36 type.
- Fluorescent Light Type
[Available for purchase on the EC site] Achieve significant reduction in work hours with a one-touch process! A resin saddle with 3 to 6 claws that securely holds the pipe.
- Piping Equipment
- Parts and Materials
Cleaning the hot spring pipes that haven't been used for a while! Introduction of a case from Atami's hot spring source.
- others
Single-function torque wrench for tightening flare nuts on flare pipe fittings for room air conditioners and refrigerant equipment.
- Air conditioning
- Work tools
- Other measuring instruments
Vertical Type Light Stand JLS-402V JLS-408V
- Safety and consumables
A new E-lock joint for recycled water polyethylene double-layer pipes is now available!
- Piping Equipment
Using over 99.995% pure zinc and eliminating chromium entirely! Supporting the field with safe and reliable domestic products.
- Scaffolding and Support Materials
- Piping and electrical wiring materials
A new construction method that excels in cost and schedule, bringing new value to homes.
- Civil Engineering Method
- Renovation and repair methods
A wide lineup centered around steel electrical conduits and accessories!
- Steel
- Piping materials (copper pipes, cast iron pipes)
Drainage cast iron VST pipe/VP pipe conversion! A dissimilar pipe fitting for connecting PVC pipes to existing VST branch pipes.
- Fittings
The operating pressure is vacuum to 0.3 MPa! It absorbs axial thermal displacement of low-pressure piping and vibrations from low-pressure pump blowers.
- pump
- Water and sewerage pipe fittings
To make it easier to remove dirt, this time we have prepared two types of brushes: a resin brush and a metal brush, allowing you to choose the hardness of the brush.
- Piping and electrical wiring materials
- Water and sewerage pipe fittings
Stable suction power even under high load! Moreover, it features a quiet design. It can suction from various solid collection tubes to detection tubes.
- Other measuring instruments
- Other analytical equipment
It is an automatic gas sampling device for harmful air pollutants measurement methods manual, such as ethylene oxide.
- Other measuring instruments
It is widely used as a sewage drainage pipe in the daily lives of people and in the production activities of companies.
- Water Supply Facilities
- Sewerage facilities
- Other civil engineering works