PVC-U Snap Lock Well Casing Pipe

product description
PVC-U Snap-Lock Well Casing Pipe is a high-performance water well casing system manufactured from premium unplasticized polyvinyl chloride (PVC-U) resin. It is designed for groundwater extraction, borehole stabilization, and water well construction projects requiring reliable structural integrity and efficient installation.The product is produced in compliance with international standards including ISO 1452, ISO 4422, and ASTM D1785

Advantages

• Corrosion-Free Material: Resistant to rust, scaling, and chemical attack in aggressive groundwater conditions
• Lightweight Structure: Easy to transport, handle, and install compared to steel casing systems
• High Durability: Long service life under underground pressure and soil conditions
• Cost-Effective Solution: Reduces installation and maintenance costs in water well projects
• Stable Performance: Maintains structural integrity in varying geological environments
• Standard-Compliant Manufacturing: Produced according to ISO and ASTM international standards
• Safe for Water Systems: Non-toxic material suitable for potable water applications
• Customizable Dimensions: Available in DN110–DN400mm with multiple pressure classes

Features

• Borehole wall stabilization during and after drilling
• Formation of continuous casing columns in groundwater wells
• Protection of groundwater from contamination and collapse of surrounding soil
• Compatibility with water well screens and pumping systems
• Structural support in deep and shallow well installations
• Adaptability to different geological and hydrogeological conditions

Application

• Agricultural irrigation well systems
• Deep groundwater extraction wells
• Municipal water supply projects
• Industrial water intake and discharge systems
• Rural drinking water supply networks
• Environmental monitoring and observation wells
• Construction dewatering and temporary groundwater control systems

Product Parameter

ASTM UPVC Riser Pipe Specifications
序号No	直径Diameter (inches)	类型Type	规格（mm）Specifications (mm)
1	1 1/4"	SCH40	42*3.6
2		SCH80	42*4.9
3		SCH120	42*5.5
4	1 1/2"	SCH40	48*3.8
5		SCH80	48*5.1
6		SCH120	48*5.8
7	2"	SCH40	60*4.0
8		SCH80	60*5.6
9		SCH120	60*6.4
10	2 1/2"	SCH40	75*5.2
11		SCH80	75*7.1
12		SCH120	75*7.7
13	3"	SCH40	88.9*5.5
14		SCH80	88.9*7.7
15		SCH120	88.9*8.9
16	4"	SCH40	114.3*6.1
17		SCH80	114.3*8.6
18		SCH120	114.3*11.1

FAQS

1. What standards does PVC-U well casing comply with?

High-quality PVC-U casing pipes are manufactured in accordance with international standards such as ISO 1452, ISO 4422, and ASTM D1785, ensuring dimensional accuracy, pressure resistance, and material reliability.

2. What is the service life of PVC-U Snap-Lock Well Casing Pipe?

Under normal operating conditions and proper installation, PVC-U casing systems can achieve a service life of 20–50 years, depending on groundwater chemistry and soil environment.

3. How is the PVC-U well casing installed in a borehole?

The casing is lowered into the drilled borehole section by section. Snap-lock joints are connected progressively to form a continuous casing string. The annular space is then typically filled with gravel pack material depending on well design.

4. What is the difference between snap-lock, threaded, and solvent-weld casing systems?

Snap-lock systems are designed for fast mechanical assembly, threaded systems provide high mechanical locking strength, and solvent-weld systems offer permanent chemical bonding. The selection depends on installation speed, depth, and project requirements.

5. Can PVC-U casing pipes be used with well screens and pumps?

Yes, PVC-U casing systems are fully compatible with well screens, submersible pumps, and gravel pack filtration systems used in groundwater extraction wells.

6. What geological conditions are suitable for PVC-U casing pipes?

PVC-U casing performs well in sandy soil, clay formations, soft rock environments, coastal areas, and high-salinity groundwater zones where corrosion resistance is critical.

7. What certifications and quality standards does the product have?

Typical certifications include CE, ISO9001 (quality management), ISO14001 (environmental management), and ISO45001 (occupational health and safety), ensuring compliance with international manufacturing standards.

8. Is customization available for OEM or export projects?

Yes, PVC-U Snap-Lock Well Casing Pipes can be customized in terms of diameter, wall thickness, pressure class, and connection design for OEM, engineering contractors, and export infrastructure projects.

9. What packaging and export methods are used?

Products are typically packaged in protective bundles, wrapped for moisture resistance, and loaded in containers suitable for international shipping to prevent deformation during transport.

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