HDPE manhole inspection, commonly known as plastic "inspection well", is set at the junction of plastic drainage pipes, turning places, pipe diameter or slope changes, places where water falls or at certain distances on straight pipe sections, so as to facilitate regular inspection, cleaning and dredging of pipes Drainage ancillary structures.

HDPE manhole inspection can be divided into rainwater plastic inspection wells and sewage plastic inspection wells according to their uses. The application fields are divided into plastic inspection wells for drainage in building communities and plastic inspection wells for municipal drainage.

Manhole covers for inspection wells can be cast iron manhole covers, composite material manhole covers, steel fiber concrete manhole covers. The quality conforms to the current requirements of CJ/T233-2006 "Plastic Inspection Wells for Drainage in Building Areas". The color is white or gray. The inner and outer walls of the wellbore should be smooth, and the flat surface should be free of bubbles, cracks, depressions, uneven color and discoloration lines. The plastic wellbore well seat has no cracks or cracks under the static load pressure of 15KN.

HDPE manhole inspection scope of application

HDPE manhole inspection is suitable for buried plastic drainage pipes with an outer diameter of no more than 1200mm and a buried depth of no more than 8m in construction areas (residential areas, public building areas, factory areas, etc.), urban and rural municipalities, industrial parks, old city renovations, etc. Design, construction and maintenance of plastic drainage inspection well project.
HDPE manhole inspection is suitable for the construction of plastic drainage inspection wells under the conditions of general soil, soft soil, seasonal frozen soil and collapsible loess soil.
HDPE manhole inspection is suitable for areas where the seismic fortification crack degree is 9 degrees or less.
HDPE manhole inspection is applicable to the ground load of the general lane according to the total vehicle weight of 15t (the rear wheel pressure is 5t); the ground load of the fire lane is designed according to the total vehicle weight of 30t (the rear wheel pressure is 6t).
HDPE manhole inspection is suitable for the design of groundwater level not higher than 1.0m below the ground.

The above is the scope of application of HDPE manhole inspection. Such a range is already very wide. If you have a special use environment in your local area, you can consult us.

HDPE manhole inspection diameter list

Matching table of wellbore diameter and pipe diameter covering soil of drainage pipe Unit: mm

Drain pipe Wellbore diameter (mm) (DN)

Pipe diameter (mm) (DN) Pipe top soil depth (m)

≤200 ≤0.8 OD200

≤300 ≤1.0 OD315

≤300 ≤1.5 OD350

≤300 ≤1.8 OD400

≤400 ≤2.0 OD450

≤400 ≤2.5 OD500

≤500 ≤3.0 OD630

≤600 ≤3.5 OD700

≤800 ≤4.0 OD1000

≤1000 ≤6.0 0D1000

Note: wellbore diameter (mm) (DN) = inspection well diameter

The above is the general HDPE manhole inspection well pipe diameter list manufactured by us.

HDPE manhole inspection function advantages

The functional advantages of plastic inspection wells mainly include five points: land saving, energy saving, water saving, material saving, and environmental protection.

HDPE manhole inspection has the functional advantages of acid and alkali corrosion resistance, aging resistance and long service life.
HDPE manhole inspection is safe and environmentally friendly. The material of the plastic inspection well is high-density polyethylene plastic, which is non-toxic and tasteless, and has the functional advantage of being recyclable after use. HDPE manhole inspection is a chemical environmental protection building material, which is in line with the national environmental protection policy.
HDPE manhole inspection uniform settlement, compression resistance. The pipeline and the well base are flexibly connected, and the clay of the pipeline and the well base moves together, which solves the uneven settlement problem caused by the connection between the traditional inspection well and the plastic pipeline, and effectively prevents the functional advantages of ground subsidence.
HDPE manhole inspection construction is convenient and fast. Using split assembly structure, the wellbore can be cut and adjusted on site, adapting to various installation depth requirements, effectively reducing costs, greatly improving construction progress, shortening the construction period is more than 10-20 times the functional advantages of traditional inspection wells; and can be constructed around the clock, Brick inspection wells and other cement brick wells are incomparable.
HDPE manhole inspection efficient drainage. The inner wall is smooth and smooth, with diversion grooves, dirt is not easy to stay, reducing the possibility of clogging, and has excellent drainage performance. The rain and sewage discharge rate is 1 to 3 times that of traditional inspection wells.
HDPE manhole inspection is light in weight, easy to transport and install, reliable in performance, strong in carrying capacity; strong in adaptability and complete in variety, can adjust the height of the wellbore, punch holes on the casing, and adjust the direction to meet all the requirements of engineering installation Functional advantages required.
HDPE manhole inspection has low comprehensive cost and low maintenance cost, which has more advantages than traditional inspection wells; it can be recycled and reused, and has the functional advantage of huge social benefits.
HDPE manhole inspection has 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 and sand; the good sealing performance can prevent rain and sewage leakage and leakage, so as to prevent groundwater pollution. It can also overcome the difficulty of repeated insertion due to the increase of the road surface.
HDPE manhole inspection saves materials. The plastic inspection well uses polymer resin as the processing material instead of red brick cement, which saves the functional advantage of topsoil resources; the size of the building area is reduced, which greatly saves the functional advantage of the land space occupied by the buried inspection well.

Our HDPE manhole inspection products have passed American Standard, Australian Standard, European Standard, CE and other international quality certifications for many years, and our products are exported to Europe, South America, Africa, Southeast Asia, South Asia and other countries and regions.

If you are looking for HDPE manhole inspection products, we will be your best supplier and manufacturer.