Rural sewage plastic inspection well

1. Environmental protection plastic inspection well has

five advantages: land saving, energy saving, water saving,

material saving, and environmental protection.

(1) Acid and alkali corrosion resistance, aging resistance,

and long service life.

(2) Safe and environmentally friendly, good sealing and leakage

prevention. The material of the plastic inspection well is a high-density

polyethylene plastic, which is non-toxic and odorless and can be

recycled after use; good sealing can prevent rainwater and sewage 

from leaking and leaking to prevent groundwater pollution.

It belongs to chemical environmental protection building materials 

and complies with the national environmental protection policy.

(3) Uniform settlement and pressure resistance. The pipe and the well

seat are flexibly connected, and the clay of the pipe and the well

seat move together, which solves the problem of uneven settlement 

caused by the connection between the traditional inspection well

and the plastic pipe, and effectively prevents ground collapse.

(4) Convenient and fast construction. The split assembly structure

is adopted, and the well shaft can be cut and adjusted on-site

to meet various installation depth requirements, effectively

reducing costs, greatly improving construction progress, and 

shortening the construction period by more than 10-20 times that

of traditional inspection wells; and it can be constructed all day

long, which is incomparable to brick inspection wells and other cement

brick wells.

(5) Efficient drainage. The inner wall is smooth and has a diversion

groove, which makes it difficult for dirt to accumulate, reducing 

the possibility of blockage. It has excellent drainage performance,

and the rainwater and sewage discharge rate is 1 to 3 times that

of traditional inspection wells.

(6) Lightweight, easy to transport and install, reliable performance, 

strong bearing capacity; strong adaptability and complete varieties, 

the shaft height can be adjusted at will, holes can be drilled on

the shaft and the direction can be adjusted to meet all the needs 

of engineering installation.

(7) The overall cost is low, the maintenance cost is low, which is more 

advantageous than traditional inspection wells; it can be recycled

and reused, and has huge social benefits.

(8) Good sealing performance and anti-leakage. Because of the flexible

connection method: flexible and convenient, it can overcome the harsh

construction environment of wind, dust, sand, and ash. It can also 

overcome the difficulty of repeated insertion due to the increase 

in road surface height.

(9) Save materials. Plastic inspection wells use polymer resin as

the processing material to replace red brick cement, saving topsoil

resources; the specifications used in building communities are 

reduced, which greatly saves the land space occupied by buried

inspection wells.

2. Production method:

Plastic inspection wells are all made of a one-time injection

molding and reinforcement molding technology. The surface of the

well body shows a P pattern, and the inner wall is smooth and without 

shearing, showing the guide flow groove of the well seat. 

A clear guide groove is set in the good seat to prevent effectively

water flow from rushing and avoiding head loss, thereby greatly reducing

dirt retention and facilitating cleaning and maintenance. 

The wall thickness can reach 7 mm, and the overall strength of the 

well seat is greatly increased, which is currently unattainable by

other inspection well manufacturers. The interface R arc design

is convenient for the installation of the well shaft and pipeline,

and the sealing rubber ring is not easy to fall off. 

If there is no R arc, the sealing rubber ring is easy to slip out of

the interface. The bottom of the Wenyuan plastic inspection well seat

is specially designed with mesh reinforcement ribs and 360° annular 

surface support, which doubles the guarantee and makes the good body

more stable, comprehensively improving the safety of the entire system.

3. Technical level of plastic inspection wells:

The plastic inspection well consists of a well seat, a well shaft,

a well cover, and plastic inspection well parts. The inspection 

well shaft can be made of buried drainage pipes, such as PVC-U double-layer

axial hollow pipes, HDPE hollow winding pipes, etc.

According to the number of pipes and angles, there are starting well seats,

straight well seats, three-way well seats, four-way well seats,

90-degree elbow well seats, etc.

To adapt to various drainage conditions, plastic

inspection wells are also equipped with matching

plastic inspection well parts such as inner and outer diameter

conversion joints, saddle joints, reducers, confluence joints, 

and angle joints. These parts and well seats are used together to 

make sure that the flow and sealing of the entire drainage system.

The inspection will cover can be made of cast iron inspection well cover, 

composite material inspection well cover, and steel fiber concrete 

inspection well cover. 

The quality meets the requirements of the current

"Plastic Inspection Well for Drainage in Building Residential Areas

" CJ/T233-2006. The color is white or gray, and the inner and outer 

walls of the well shaft should be smooth and flat.

There should be no bubbles, cracks, depressions, uneven color,

and decomposition discoloration lines on the surface.

The plastic well shaft seat has no cracks or

cracks under a static load pressure of 15KN.