Product Business

Product Business

Non-manhole inspection

Non-manhole: Plastic manhole that only provides access to the drainage system for inspection and cleaning equipment. It is suitable for plastic inspection wells for drainage with a depth of not more than 6m and a buried pipe diameter of not more than 630mm in construction areas (residential areas, public buildings, factory areas, etc.).

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Product Description

Scope of application

1. Non-human inspection wells: plastic inspection wells that only provide inspection and cleaning equipment to enter the drainage system channel.
2. It is suitable for plastic inspection wells for drainage with a depth of not more than 6m and a buried pipe diameter of not more than 630mm in construction areas (residential areas, public building areas, factory areas, etc.).

 

Composition

1. It is composed of well seat, shaft, anti-falling pollution collection net, well cover and accessories.
2. The well seat is made of polymer resin (PPB, PVC) as raw material and is injection molded at one time.
3. The shaft can be used PVC shaft special pipe or HDPE shaft special pipe.
4. Manhole covers: plastic manhole covers can be used in green belts, composite manhole covers, cast iron manhole covers and steel fiber concrete manhole covers can be used in sidewalks, residential roads or municipal roads.

 

 

Executive standard

National standard GB/T 41048-2021 "technical requirements for plastic inspection wells for urban drainage"

 

A

According to the bottom structure, the plastic inspection well seat can be divided into two types: the trough type and the sink chamber. The bottom of the trough-type well seat is provided with a smooth guide trough, which has good hydraulic conditions and is conducive to rapid discharge of rain and sewage to avoid dirt retention.
Mud sink chamber The bottom of the well seat is provided with a mud sink chamber with a height of 200mm (well diameter ≤ 315mm) and 300mm (well diameter> 315mm), which is commonly used in rainwater pipeline systems. Sediment settles at the bottom of the well when rainwater passes through.

 

Well diameter Pipe diameter Saddle joint diameter matched to wellbore Remarks
OD200 OD110 OD160/ID150 OD75 OD110 OD: Nominal size is outer diameter series
ID: Nominal size is inner diameter series
According to the national industry standard "plastic inspection for drainage in building communities".
Well "CJ/T233-2016 specified wellbore is outer diameter series
The standard specifications are:
OD200、OD315
OD450、OD630




 
OD315 OD110 OD160/ID150
OD200/ID200
OD250/ID225
 
OD75 OD110
OD160 OD200
ID150 ID200
 
OD450 OD200/ID200 OD250/ID225
OD315/ID300 OD400/ID400
OD110 OD160 OD200 OD250
ID150 ID200 ID225
OD630 OD200/ID200 OD250/ID225
OD315/ID300 OD400/ID400
OD500/ID500 OD630/ID600
 
OD110 OD160 OD200 OD250 OD315
ID150 ID200 ID225 ID300

 

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