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Inspection hatch Product List and Ranking from 13 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Nov 12, 2025～Dec 09, 2025
This ranking is based on the number of page views on our site.

Inspection hatch Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Nov 12, 2025～Dec 09, 2025
This ranking is based on the number of page views on our site.

  1. フカガワ Saitama//Manufacturing and processing contract
  2. 城東テクノ Osaka//Building materials, supplies and fixtures
  3. null/null
  4. 4 バクマ工業 Niigata//Building materials, supplies and fixtures
  5. 5 日東バルブ Osaka//Machine elements and parts
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Inspection hatch Product ranking

Last Updated： Aggregation Period:Nov 12, 2025～Dec 09, 2025
This ranking is based on the number of page views on our site.

  1. Fukagawa Comprehensive Catalog Vol. 18 フカガワ
  2. Inspection opening for kitchen exhaust duct (indoor type) - Kitchen check フカガワ
  3. Inspection opening (Bonded, stainless steel, Galvalume) SD/S type フカガワ
  4. 4 Fireproof and high airtight ceiling inspection opening [45-minute semi-fireproof structure compatible product] 城東テクノ
  5. 4 Inspection port for foot valves "Suction Hat" 日東バルブ

Inspection hatch Product List

1～15 item / All 33 items

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[Case Study] Automotive Parts Manufacturing <Modification of Duct Inspection Port>

[Case Study] Automotive Parts Manufacturing <Modification of Duct Inspection Port>

Modified inspection port for internal checks without tools! A case where work time was significantly reduced.

We would like to introduce a case of modification of a duct inspection port in automotive parts manufacturing. The task of inspecting and cleaning the duct from the inspection port occurred frequently, and it was cumbersome to remove bolts and nuts each time. After the implementation, we were able to open and close the inspection port with a handle that requires no tools, significantly reducing the work time. [Case Overview] ■ Background of Implementation - The task of inspecting and cleaning the duct from the inspection port occurred frequently. - It was cumbersome to remove bolts and nuts each time. ■ Improvement Details - The inspection port can now be opened and closed with a handle that requires no tools. - We were able to significantly reduce the work time. *For more details, please refer to the PDF document or feel free to contact us.

  • Other air conditioning equipment

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[Information] Termite Guarantee System Maintenance Guide

[Information] Termite Guarantee System Maintenance Guide

We will guide you on a maintenance guide to protect your home from termite damage!

This document includes maintenance and checks to prevent termite damage, as well as information on the Joso Kiso Packing Method. We would greatly appreciate it if you could read through it and utilize the information to further reduce the possibility of termite damage to nearly zero.

  • others

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Fireproof and high airtight ceiling inspection opening [45-minute semi-fireproof structure compatible product]

Fireproof and high airtight ceiling inspection opening [45-minute semi-fireproof structure compatible product]

Ceiling inspection openings with a 45-minute semi-fire-resistant structure that do not pose fire safety issues even when installed on fireproof covering lines [Special column now available].

■Ensuring the Continuity of Fireproof Coating The fireproof performance of our conventional products (made of aluminum) is approximately 28 minutes (according to our test values), which may not ensure the continuity of fireproof coating in quasi-fireproof structures or reinforced ceilings. By using a fireproof ceiling inspection opening, continuity of the fireproof coating can be ensured. ■Simplification of Construction To ensure the continuity of fireproof coating, there are cases where various methods are employed, such as providing a site-manufactured box-shaped fireproof coating above the ceiling inspection opening. However, the measures for fireproof coating have become a burden on the site. This product eliminates the need for a box-shaped fireproof coating, leading to a reduction in on-site construction effort. ■Ensuring High Airtightness By providing a recess to maintain the elasticity of the airtight material. It has high airtight performance equivalent to JIS A 4706 (sash) airtightness grade A4 (according to our test values). ■Special Column Published by Noboru Yasui, Representative of Sakura Design Group First-Class Architect Office "What are the precautions for fireproof coating required in quasi-fireproof and fireproof buildings?" ↓Click the related link↓

  • others

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Are you having trouble selecting materials for complex wooden non-residential buildings?

Are you having trouble selecting materials for complex wooden non-residential buildings?

A helpful site for wooden non-residential buildings has opened. You can easily search for materials that suit your needs by selecting the products and conditions you are looking for!

In the realm of wooden non-residential buildings, the mission of Joto Tech is to focus on: 【How to make wood last longer】 Are you having trouble selecting components for complex wooden non-residential buildings? On this site, by selecting the products and conditions you are looking for, you can narrow down and search for components suitable for each application! Please feel free to contact us.

  • wood
  • wood

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Fuchine (Fuchine) [Standard Type] - Frameless High Air Tightness Underfloor Inspection Opening

Fuchine (Fuchine) [Standard Type] - Frameless High Air Tightness Underfloor Inspection Opening

Frame-less that blends into the floor.

A borderless high airtight type floor inspection opening that overturns conventional wisdom. It achieves a noise-free space while maintaining the performance of Joto's high airtight type floor inspection opening.

  • others

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Fire-resistant and airtight ceiling inspection opening [60-minute semi-fire-resistant structure, compatible with reinforced ceilings]

Fire-resistant and airtight ceiling inspection opening [60-minute semi-fire-resistant structure, compatible with reinforced ceilings]

Ceiling inspection openings compatible with 60-minute semi-fire-resistant structures and reinforced ceilings that do not pose fire safety issues even when installed on fireproof covering lines [Special column now available].

■Ensuring the Continuity of Fireproof Coating The fireproof performance of our conventional products (made of aluminum) is approximately 28 minutes (based on our test values), so it is conceivable that continuity of fireproof coating cannot be ensured in quasi-fireproof structures or reinforced ceilings. By using fireproof ceiling inspection openings, continuity of fireproof coating can be secured. ■Simplification of Construction To ensure the continuity of fireproof coating, there are cases where various methods are employed, such as installing a site-manufactured box-shaped fireproof coating above the ceiling inspection opening; however, these measures can become a burden on the site. This product eliminates the need for a box-shaped fireproof coating, leading to a reduction in on-site construction effort. ■Slimming Down the Visible Width for Aesthetic Appeal Compared to products that comply with 45-minute quasi-fireproof structures, the visible width has been narrowed, and the base material has been painted for a cleaner appearance. ■Consideration for Safety During Opening, Closing, and Inspections Since ceiling materials become heavier in 60-minute quasi-fireproof structures or reinforced ceilings, a fall prevention chain is standardly equipped to prevent the lid from opening too forcefully during inspections. ■Special Column Published by Mr. Noboru Yasui, Representative of Sakura Design Group, First-Class Architect Office "What are the important points regarding fireproof coating required for quasi-fireproof and fireproof buildings?" ↓Click the related link↓

  • others

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Okju Co., Ltd. Construction Achievements

Okju Co., Ltd. Construction Achievements

Here are some examples of construction projects handled by Okju, including government offices and airports!

At Okuju, we handle interior and exterior construction work for buildings (walls, ceilings, etc.). We have a track record of working on notable buildings, including government offices, airports, and hotels. You can view many other achievements through the external link. (Please click on each image at the link.) 【Construction Achievements (Excerpt)】 ■ Skyscrapers ■ Exhibition halls ■ Earthquake recovery work ■ Ceiling seismic reinforcement work ■ Renovation work *For more details, please refer to the PDF materials or feel free to contact us.

  • others
  • aluminum
  • stainless

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Sealing hole

Sealing hole

Round inspection opening/sealing hole that can be easily installed on the ceiling.

■Features of Ceiling Holes (Construction) 1. Wiring and cabling in the ceiling space can be done from indoors after the ceiling work is completed. 2. Wiring for information and communication systems (IT) and various electrical works can be easily done from indoors in the ceiling space. 3. Not only electrical wires, but also piping for air conditioning refrigerants and air can be installed from indoors to the ceiling space. 4. Wiring can be easily done from indoors to the ceiling space without being exposed, preserving the interior design of the building, and achieving a good finish and appearance. 5. Construction time can be reduced (by half) and costs can be lowered (by a third), allowing for safe work and easier electrical construction. ■Features of Ceiling Holes (Product) 1. It is a round inspection opening (entry point) that can be installed in ceiling finishing materials. 2. It has a good appearance and can be easily installed with a one-touch mechanism. 3. There is no need for repair work on ceiling finishing materials or ceiling framing materials, and no specialized contractors are required. 4. It can be installed even in ceilings without framing materials (such as traditional Japanese room ceilings).

  • LAN construction and wiring work
  • PBX/IP phone
  • Other network tools

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Inspection opening (Bonded, stainless steel, Galvalume) SD/S type

Inspection opening (Bonded, stainless steel, Galvalume) SD/S type

The SD type can be easily installed on the opening surface with one touch! The S type is duct-shaped and can accommodate various opening surfaces!

This is an inspection access door for ducts and air conditioning units. Our company offers a variety of sizes of "inspection openings." We accommodate sizes ranging from 265mm x 265mm to 695mm x 925mm. *Type S requires a folded edge processing for installation on the opening surface. Additionally, the SD type comes with a dedicated insulation frame. Height adjustment is possible, allowing it to be used according to the thickness of the insulation material. Please consider this as well!

  • Piping Materials

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Inspection opening for kitchen exhaust duct (indoor type) - Kitchen check

Inspection opening for kitchen exhaust duct (indoor type) - Kitchen check

The door is completely removable! No insulation needed! Easy to work with! The protrusion inside the duct is minimal, making cleaning easy too!

We handle "Inspection Ports for Kitchen Exhaust Ducts - Kitchen Check." In the Ministry of Land, Infrastructure, Transport and Tourism's Standard Specifications, 2016 edition, a new statement was added: "The waste duct of the kitchen must be installed in a way that allows for inspection inside the duct." If you are struggling or have concerns about compliance with the standard specifications, please consult us!! 【Strengths of Fukagawa's Kitchen Check】 - One-touch installation frame, installation can be visually confirmed - The door is completely removable, saving space - The door contains 50mm of rock wool, eliminating the need for insulation - Air resistance inside the duct is minimized You can check the product introduction and installation methods in the video!

  • Piping Materials

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Fukagawa Comprehensive Catalog Vol. 18

Fukagawa Comprehensive Catalog Vol. 18

Featuring duct molding machines and air conditioning components! We also introduce business support services.

Our company, a comprehensive manufacturer of duct materials and a specialized trading company, delivers what is needed when it is needed in a one-stop manner to duct specialty contractors, equipment construction contractors, and specialized equipment trading companies nationwide. This catalog features items such as "duct manufacturing machines," "ducts," "dampers," and "hoods and filters." Additionally, we also introduce our online e-commerce site, DX service business software, and business support services. [Contents (partial)] ■INDEX ■Machines ■DX Services ■Ducts ■Dampers *For more details, please download the PDF or feel free to contact us.

  • tube

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Inspection port for foot valves "Suction Hat"

Inspection port for foot valves "Suction Hat"

The definitive guide to football valve maintenance!

Our company offers a "Suction Hat" used for inspecting pump suction piping, including foot valves. By lifting the entire water supply piping with the "Suction Hat" above ground, maintenance and inspection of the foot valve and suction piping can be performed without entering the water tank. Additionally, the lever operation of the foot valve can be conducted from the ground. 【Installation Method】 01. Use a core cutter or similar tool to create openings for the suction hat installation on the floor surface (two locations for suction piping passage and support installation). 02. After installing the support, fill the outer perimeter of the support with mortar to secure it (allow sufficient curing time for the mortar). 03. After confirming the adhesion of the mortar, set the suction hat on top of the support. *For more details, please download the PDF or feel free to contact us.

  • valve

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