1. Product Features:

High-strength material:
The manhole is made of high-strength materials such as cast iron, stainless steel, and carbon steel, which can withstand high pressure, impact, and external loads to ensure safety during use.

Good sealing:
Through precise sealing design, the manhole is ensured to be non-leaky during long-term use, preventing medium leakage and external pollutants from entering.

Corrosion resistance:
The manhole is usually made of anti-corrosion coating or stainless steel, which has good corrosion resistance and is particularly suitable for corrosive environments such as chemicals, sewage, and oceans.

High security:
The manhole is equipped with safety locks and protective devices to ensure the safety of operators and prevent unauthorized personnel from opening it without authorization.

Customizable:
Customized services are provided according to customer needs and usage environment to meet the requirements of different sizes, structures, and materials.

Convenient installation and maintenance:
The manhole has a simple structure, is easy to install, and can be reused, which is convenient for daily inspection, cleaning, and maintenance.

Compression resistance and durability:
The high-strength design can withstand large static and dynamic loads and is suitable for various harsh working environments.

2. Technical parameters:

3. Common types:

Circular manhole:
The most common type of manhole, usually used in sewage pipes, storage tanks, inspection wells, etc. Because the round shape has better structural strength, it is suitable for withstanding high pressure and large external loads.

Square manhole:
Square manholes are usually used in areas with special space restrictions or as entrances where large passages are required. They are designed with multiple corners to facilitate personnel entry and exit, and are suitable for underground storage tanks and some large facilities.

Flange manhole:
Flange manholes are equipped with flange joints and are suitable for occasions requiring higher sealing. Commonly used in high-pressure and special piping systems.

Manhole with ladder:
Some deep wells or occasions with large height differences are equipped with ladders or step designs to facilitate personnel to enter and go up and down safely from the manhole.

Airtight manhole:
This type of manhole pays special attention to sealing performance and is often used in places with explosion hazards such as petroleum, chemical industry, and natural gas. They have higher sealing standards to prevent harmful gas leakage.

4. Application areas:

Sewage treatment:
In facilities such as sewage pipes, pumping stations and storage tanks, manholes are installed for daily maintenance, cleaning and inspection. It ensures the long-term stable operation of the sewage treatment system.

Chemical industry:
On the storage tanks, pipelines, reactors and other equipment in chemical plants, manholes are set for equipment maintenance, cleaning and inspection to prevent chemical media leakage and ensure production safety.

Oil and gas:
In oil and gas storage tanks, pipelines and other places, manholes are used for maintenance, cleaning and maintenance to ensure the sealing and reliability of the transportation system.

Power industry:
In the steam pipes, cooling systems and other parts of the power plant, manholes are set to facilitate equipment inspection, repair and maintenance.

Municipal construction:
In urban water supply and drainage pipeline systems, manholes are used for inspection, cleaning and maintenance to ensure the normal operation of urban water conservancy systems.

Environmental protection:
In environmental protection facilities such as garbage disposal and wastewater treatment, manholes are installed for maintenance and cleaning to ensure that the system effectively handles waste and pollutants.

5. Advantages:

Improve operational safety:
The manhole provides a safe entry channel for personnel, avoids direct contact with hazardous media, and ensures the safety of staff.

Enhanced sealing performance:
Through high-quality sealing design and materials, the sealing of the pipeline system is ensured, effectively preventing leakage problems.

Save maintenance costs:
The manhole is convenient for daily inspection and cleaning, reducing the failure rate of equipment and pipelines and reducing long-term maintenance costs.

Reliability and durability:
Made of corrosion-resistant and high-strength materials, it can withstand long-term use in harsh environments and high-pressure conditions, ensuring long-term stable operation of the equipment.

Quality assurance:

Each of our manholes has undergone strict quality inspections and meets international standards and industry requirements. The products undergo multiple inspections such as pressure testing and sealing testing before leaving the factory to ensure that they can operate stably under various working conditions.

6. Packaging and transportation:

Packaging: According to customer needs and product specifications, wooden boxes, pallets, bubble films and other packaging methods are used to ensure that the products are not damaged during transportation.

Transportation: Provide multiple transportation methods such as sea transportation, air transportation, and land transportation, and deliver on time according to customer requirements.

7. Precautions:

Installation inspection: When installing the manhole, all connecting parts and sealing rings must be checked for integrity to ensure sealing performance.

Regular inspection:
Regularly check the status of the manhole cover and sealing components to avoid leakage or failure due to aging or damage.

Operation precautions:
When opening and closing the manhole, ensure safe operation to avoid accidental impact or accidents.

8. Summary:
Manholes are an important part of pipeline systems, storage tanks, equipment, etc., providing convenient maintenance channels and sealed connections. Whether in sewage treatment, oil and gas, chemical industry, power industry, or municipal construction, manholes play an important role. It can not only ensure the sealing of pipelines or containers and prevent medium leakage, but also ensure the safety of operators and effectively reduce maintenance costs.