日本ステップ工業 List of Products and Services

The "Hexaplug" is a durable shut-off valve for plant piping construction. Its simple mechanism and lightweight design enhance workability, allowing for quick attachment and detachment as needed, greatly contributing to labor savings. By using a uniquely shaped sealing packing, a tight seal can be easily achieved just by hand-tightening the butterfly nut (no tools required). 【Features】 ■ No need for work interruptions during piping construction ■ Quick attachment and detachment as needed ■ Uses a uniquely shaped sealing packing ■ Easily achieves a tight seal ■ Excellent durability *For more details, please refer to the PDF document or feel free to contact us.

• Piping materials (plastic pipes)

The "Odor Control King Series" is a material that traps unpleasant odors and mosquitoes generated from drainage systems. We offer a lineup of "Odor Control Lids" that can be used with any type of manhole and "Odor Control Caps" that can be easily attached to the installation pipe. Additionally, cleaning and inspection are simple, and installation and removal can be easily performed. 【Odor Control Lid Features】 ■ Just place it under the manhole cover ■ Resolves resident complaints ■ Ease of installation and removal ■ Economic with a lifespan of over 10 years after installation ■ Compatible with any type of manhole *For more details, please refer to the PDF document or feel free to contact us.

• Pest and insect control products

The "One-Way Series" is a backflow stopper that prevents external water from flowing back during floods or high tides. We offer a lineup including the lightweight and corrosion-resistant "Sewer One-Way Valve," the double-hinge type "Simple One-Way Valve," and the "Drain One-Way Gate." We also provide the "Tobichirazu Board," a secondary pipe inside the manhole that can be easily adjusted to fit the site dimensions. 【Sewer One-Way Valve (Type N1) Features】 ■ Prevents external water from flowing back during floods or high tides ■ Lightweight, corrosion-resistant, and watertight structure ■ Usable for drainage pipes with diameters from φ75 to φ600 ■ Recommended water depth within 2.0m (from the bottom of the pipe) *For more details, please refer to the PDF materials or feel free to contact us.

• others

The "DF Mat" is a wear-resistant rubber sheet that is attached to the bottom slab of a sewer manhole to protect the concrete from abrasion caused by flowing water. It is easy to install by securing it with anchor bolts and simply sealing the holes with caulking or other options. Additionally, it is more flexible compared to other materials, allowing for installation on curved surfaces such as pipe walls. It can be delivered in dimensions tailored to the site. 【Features】 ■ Easy installation ■ Excellent abrasion-resistant material ■ Provides long-term protection for concrete slabs and concrete pipes ■ More flexible than other materials, allowing for installation on curved surfaces such as pipe walls ■ Can be delivered in dimensions tailored to the site *For more details, please refer to the PDF document or feel free to contact us.

• Rubber sheet

This catalog introduces the sewer pipe inspection mirror "Extendable Mierukun." Featuring the fully waterproof "Mierukun" with a power light, as well as the "Fiberglass MG Series" and "Power LED," which excel in dark and narrow spaces, we offer a diverse lineup. Please make use of this when selecting products. [Featured Products] ■ Mierukun with Power Light ■ Check Light Mirror ■ Fiberglass MG Series ■ Aluminum MA Series ■ Fiberglass Power Light *For more details, please refer to the PDF document or feel free to contact us.

• Work tools

"Remake Ring" is a seismic retrofitting method that installs flexible joints at the connection points between the rehabilitation pipe (self-supporting pipe) and the manhole without excavation, designed to accommodate the extraction, protrusion, and bending of the rehabilitation pipe under Level 2 seismic motion. It is possible to install flexible joints in areas where pipe rehabilitation methods have already been completed, as well as to install flexible joints in conjunction with pipe rehabilitation methods. The applicable existing pipe types are reinforced concrete pipes and ceramic pipes, with applicable existing pipe diameters of nominal sizes 250 and 300. 【Features】 ■ Accommodates extraction, protrusion, and bending of rehabilitation pipes under Level 2 seismic motion ■ Obtained construction technology examination certification in March 2016, No. 1504 *For more details, please refer to the PDF materials or feel free to contact us.

• Earthquake-resistant construction method

The "U・S・I Invert Cover" contributes to preventing snow melting on snowy roads by trapping heat. By confining odor gases (hydrogen sulfide) within the invert pipe, it reduces damage to manholes, maximizes the durability of manholes in general, and ultimately leads to cost reduction in corrosion prevention measures. The straight flow of wastewater eliminates damage to the invert, keeping it clean and hygienic at all times. 【Features】 ■ Made of vinyl ester ■ Does not release odors ■ Eliminates damage to the invert, keeping it clean and hygienic ■ Contributes to preventing snow melting on snowy roads ■ Suitable for corrosion prevention measures on the walls of manholes, the underside of iron covers, steps, etc. *For more details, please refer to the PDF document or feel free to contact us.

• others

The "Evashito Method" is a composite manhole rehabilitation technique that involves attaching an "FRP sheet" to the inner wall of an existing manhole that has advanced corrosion, using an expansion frame, and filling the gap between the sheet and the existing manhole with mortar. With a thickness of 1.5mm for the FRP sheet, the method promises increased longevity through enhanced corrosion resistance and durability, while the filling material, a non-shrink mortar, maintains strength over the long term. Additionally, there is no need for heavy machinery, and no special skills are required, allowing for construction in a small road occupancy area. By utilizing the existing manhole, material savings are achieved, resulting in excellent economic efficiency along with shortened construction periods. 【Features】 ■ Demonstrates strong robustness through complete integration with the existing manhole ■ Filling material maintains strength over the long term with non-shrink mortar ■ Can be constructed in a small road occupancy area ■ Achieves material savings by utilizing the existing manhole ■ Passes acid resistance and sulfur intrusion tests *For more details, please refer to the PDF document or feel free to contact us.

• Sewerage facilities

The "Santac Cap U-FD(R) type" is a flexible joint for water-stopping in manholes. It meets seismic resistance level 2, and the butyl rubber adhesive material (Span Seal) ensures reliable water-stopping. This product can be used for thrust pipes (cast-in-place concrete manholes). 【Features】 ■ For thrust construction method ■ Meets seismic resistance level 2 ■ Butyl rubber adhesive material (Span Seal) ensures reliable water-stopping *For more details, please refer to the PDF document or feel free to contact us.

• Fittings

The "Santac Branch Pipe for Ribbed Pipes" is a rubber branch fitting that excels in water-stopping capability and flexibility. The main rubber is equivalent to that of the "Santac Branch Pipe" and also boasts excellent seismic resistance. By adopting a water-stopping holder made of ultra-soft rubber, it maintains outstanding water-stopping performance. The mechanical fixation method, which does not require adhesive, makes installation easy, and backfilling can be done immediately after installation. Additionally, we also offer jointless PVC pipes. 【Features】 ■ The main rubber is equivalent to that of the "Santac Branch Pipe" ■ Excellent seismic resistance ■ Adoption of a water-stopping holder made of ultra-soft rubber ■ Maintains outstanding water-stopping performance ■ Easy installation due to the mechanical fixation method that does not require adhesive *For more details, please refer to the PDF document or feel free to contact us.

• Fittings

Nihon Step has been promoting the planning and development of products with the theme of "ensuring safety and improving work efficiency" in sewer infrastructure and construction sites for many years. Now, in order to replace the conventional water-stopping joint method, we have completed the next-generation flexible water-stopping joint for manholes, "Santac Cap," and the flexible water-stopping joint for sewer pipe beams, "Santac Branch," which respond to seismic and water intrusion prevention measures. Both products offer significant economic, time, and functional advantages compared to traditional methods, and are highly anticipated new products by contractors nationwide.

• Water Supply Facilities
• Special Construction Method
• Civil Engineering Design Office

The "Santac Cap RB Type" is a flexible joint for manholes that allows for direct attachment of flexible joints and ribbed pipes. The butyl rubber adhesive securely compresses the rib to ensure watertightness, eliminating the need for a conversion joint. Additionally, there is no curing time required, allowing for immediate backfilling after the main pipe is installed. 【Features】 ■ Direct attachment of flexible joints and ribbed pipes is possible ■ No curing time required; backfilling can be done immediately after main pipe installation ■ No conversion joint needed ■ Butyl rubber adhesive securely compresses the rib to ensure watertightness *For more details, please refer to the PDF document or feel free to contact us.

• others
• Fittings
• Inspection hatches, manhole covers, and ditch covers

Our company handles the flexible water stop joint for manholes, the "Santac Cap FD Type." No replacement joint is required. There is no curing time needed, and backfilling can be done immediately after the main pipe installation. Additionally, it uses a mechanical fixing method that does not require adhesive, and the butyl rubber-based adhesive securely compresses the ribs to ensure a watertight seal. 【Features】 ■ For ribbed pipes ■ No curing time required; backfilling can be done immediately after main pipe installation ■ No replacement joint required ■ Butyl rubber-based adhesive securely compresses the ribs to ensure a watertight seal ■ Mechanical fixing method that does not require adhesive *For more details, please refer to the PDF document or feel free to contact us.

• others
• Fittings
• Inspection hatches, manhole covers, and ditch covers

The "HI-PLA Adjustment Ring" is developed based on consultations and guidance from those working on-site and designers, utilizing a new type of plastic material. By inserting it between the sloped wall and the manhole frame, it accurately accommodates the height and slope of the pavement surface. With options such as the "Flat Type" for upper adjustments and the "Grip Type" for lower adjustments, precise height adjustments can be made according to the tilt. 【Features】 ■ No freezing damage in cold regions ■ Completion to the manhole frame in about 20 minutes without requiring expertise ■ No special tools needed ■ Easy installation even for first-timers ■ Corrosion-resistant, highly durable, with no cracks or damage *For more details, please refer to the PDF document or feel free to contact us.

• Inspection hatches, manhole covers, and ditch covers
• others

Excellent seismic resistance

• Dam construction
• Water Supply Facilities
• Other civil engineering services

It is for the thrust construction method.

• Manhole body

It is gentle, strong, and safe for the sheet, and it also allows for inspection and cleaning.

• Agricultural civil engineering works
• Rainwater infiltration facilities

Excellent in storage space, transportation efficiency, and constructability, flexibly adaptable to any location or terrain.

• Aggregates and crushed stone
• Agricultural civil engineering works
• Rainwater infiltration facilities

It helps alleviate issues such as "swelling," "fatigue," and "coldness in the toes," etc.

• Safety and consumables

A mixture of aluminum powder with special surfactant properties and inorganic fine powder that stabilizes and disperses microbubbles.

• Reinforcement and repair materials

It is a concrete finishing machine that maximizes powerful physical defoaming capabilities while ensuring ease of handling on-site.

• Concrete core removal

This is a simple sandbag that is perfectly suited for urban flood control measures.

• Safety and consumables
• Sandbags

It works more powerfully and effectively in the decomposition of animal and vegetable fats and the removal of unpleasant odors.

• Safety and consumables

Run freely underground with seismic isolation features.

• Work tools

It can be used immediately after a disaster occurs.

• Manhole body
• others
• Toilet

This is a special quick-setting cement that can be used extensively in various types of construction work.

• cement

To prevent rust while storing the formwork for a while without using it. When there is rust on the formwork to be used, and there is a concern about dirt on the surface of the concrete.

• Other civil engineering works

Enhance the surface of concrete by giving chemical power to the latency through special surface actions! Gently protect the concrete from steam curing.

• Other civil engineering works

This is an introduction to the "Unit System Invert" handled by Nippon Step Co., Ltd.

• Manhole body
• Other civil engineering services

Hiplaki is a plastic imitation wood that combines both safety and aesthetic functionality.

• Concrete sheet piles and piles
• Protective fence
• Landscaping materials

The Santac Cap allows for backfilling immediately after installation, enabling a reduction in construction time.

• Manhole body
• Water Supply Facilities

This is an introduction to the "Flexible Joint Santak Branch for Sewer Connection Pipes" handled by Nippon Step Co., Ltd.

• glue
• Water Supply Facilities

This is an introduction to the "Santac Cap Vent Syphon VS Type" handled by Nippon Step Co.

• Manhole body

This is an introduction to the "Manhole Raising Adjustment High-Polymer Adjustment Ring" handled by Nippon Step Co.

• Secondary paving products
• Manhole body
• Pavement construction

This is an introduction to the "Santa Touch Cap FD Type" handled by Nippon Step Co.

• Manhole body

This is a rubber branch fitting specifically designed for rib pipes, featuring excellent water resistance and flexibility.

• glue
• Water Supply Facilities

This is an introduction to the "Santac Cap RB Type" handled by Nippon Step Co.

• Manhole body

This is a seismic-resistant joint for sewer manholes compatible with advanced construction methods.

• Manhole body
• Water Supply Facilities
• Renovation and repair methods

This is a seismic joint for Level 2 earthquake response.

• glue
• Manhole body

This is a mirror and light that is lightweight, strong, and compact, designed to perform effectively in dark and narrow spaces. 【Features】 ○ The power light is a completely waterproof underwater light. ○ The mirror is easy to remove. ● For other functions and details, please contact us.

• Water Supply Facilities
• Sewerage facilities
• Waterproofing work

Any shut-off valve in any situation can be operated easily and reliably. 【Features】 ○ Neither the body nor the valve is subjected to excessive force, preventing deformation or flattening of the peaks. ● For other functions and details, please download the catalog.

• Other civil engineering works

The work of indicating supply pipes in the supervision duties of the maintenance department will be reduced. 【Features】 ○ Accident prevention ○ Confirmation of pipe type and diameter from the road surface ● For other functions and details, please download the catalog.

• Other civil engineering works

Accurate height adjustment is possible through various combinations according to height and tilt. 【Features】 ○ There is no risk of freeze damage in cold regions. ○ It is corrosion-resistant, highly durable, and free from cracking or damage. ● For other functions and details, please contact us.

• Manhole body
• Other civil engineering works

The environment is naturally solved by effective bacteria for purification. Bacteria and enzyme groups suitable for the intended purpose are concentrated and packed in a polypropylene mesh bag, which activates upon contact with water and continuously injects into the wastewater treatment system. 【Features】 ○ It was created to digest and decompose oil and grease that were problematic in the collection tanks of sewage systems. ○ It alleviates odor problems through biodegradation. ● For other functions and details, please download the catalog.

• Water Supply Facilities
• Other civil engineering works

Solving problems caused by tree roots This is a sheet that has a component called Trifluoralin, which is fixed to a polypropylene non-woven fabric Tecton. 【Features】 ○ Trifluoralin is a component that controls plant roots ○ Protects structures and preserves greenery ○ Hardening remains consistent over a long period ○ Safe for the environment ● For other functions and details, please download the catalog.

• Tree protection materials and plant boxes
• Trees
• Landscaping materials