SELECT. SPECIFY. BUILD WITH CONFIDENCE.

Engineering Pipe Selection Guide: PVC, ABS & HDPE

Compare PVC/PVC-U, ABS, PE/HDPE and perforated engineering pipes by application, ground conditions, connection, installation and monitoring requirements with GEOLUR’s practical selection guide.

Request a Quote

Engineering Selection Guide

Start with the engineering function. Then select the pipe.

PVC/PVC-U, ABS, PE/HDPE and perforated pipes solve different geotechnical and groundwater problems. The correct selection depends on what the pipe must do, how it will be installed, the surrounding environment and the monitoring or hydraulic system it must support.

Groundwater

PVC / PVC-U

A practical family for monitoring wells, standpipes, open standpipe piezometers and selected recharge, pumping and dewatering applications.

Movement Monitoring

ABS Casing

Purpose-designed grooved casing for inclinometer probes used to measure ground or structural movement.

Heavy-Duty Wells

PE / HDPE

Relevant to selected deep-well, pumping, recharge, relief and aggressive-environment applications where the specified system calls for PE or HDPE.

Hydraulic Interface

Perforated Pipes

Slot or perforation geometry is selected around the hydraulic function, surrounding formation, filter system and project requirements.

GEOLUR selection principle: material alone does not define suitability. Diameter, wall configuration, connection, perforation or groove geometry, installation method, surrounding ground and required service life should be evaluated together.

Quick Selection Matrix

Which GEOLUR pipe family should you consider first?

Use this matrix as a starting point for specification review. Final selection should follow the project drawings, BOQ, hydraulic or geotechnical design, monitoring equipment and applicable standards.

Application	First Product Family to Consider	Primary Selection Question	Important Secondary Factors
Groundwater Monitoring Well	PVC / PVC-U screen + riser	What screened interval and hydraulic opening are required?	Diameter, slot configuration, filter pack, chemistry, joint and cap
Water Standpipe	PVC / PVC-U	What diameter and intake arrangement suit the monitoring objective?	Depth, joints, response zone, protection and access
Open Standpipe Piezometer	PVC / PVC-U	Where must groundwater pressure communicate with the standpipe?	Tip or screen arrangement, filter zone, seal and riser
Borehole Inclinometer	ABS inclinometer casing	What casing geometry and diameter are compatible with the probe?	Expected movement, depth, groove orientation, joint and grout
Horizontal Inclinometer	ABS grooved casing	What probe, access arrangement and expected settlement profile apply?	Pull cable, joints, curvature, groove orientation and protection
Deep Dewatering Well	PE / HDPE or specified well-pipe system	What depth, diameter, pumping duty and installation loads apply?	Groundwater chemistry, screen design, connection and equipment compatibility
Recharge / Relief Well	PVC/PVC-U or PE/HDPE depending design	What hydraulic capacity and service environment must the well accommodate?	Diameter, depth, pressure, chemistry, screen and joint system
Custom Well Screen	Custom perforated pipe	What opening geometry is required for the formation and filter design?	Slot width, open area, pattern, material, diameter and structural requirement

PVC / PVC-U Selection

Choose PVC/PVC-U around the well or monitoring function.

PVC and PVC-U are widely used in groundwater and geotechnical monitoring systems because they can combine practical handling, corrosion resistance and configurable plain or screened sections. The important question is not simply “PVC or not?” but how the complete well or standpipe must function.

Monitoring Wells

Define the target aquifer or groundwater interval first. Screen length, slot configuration, riser length, filter pack and seals should then be designed as one monitoring-well system.

Standpipes & Piezometers

Select pipe diameter and intake arrangement according to the measurement objective, installation depth and required hydraulic response rather than simply using the largest available pipe.

Recharge & Dewatering

Where PVC/PVC-U is specified for well applications, review hydraulic demand, depth, connection system and installation loading in addition to corrosion resistance.

For monitoring wells, screen slot selection should be coordinated with the surrounding formation and filter-pack design. A smaller or larger slot is not automatically “better”.

ABS Inclinometer Casing

For inclinometers, the casing is part of the measurement system.

An inclinometer casing is not merely an empty tube. Its internal guide grooves establish probe orientation, while casing diameter, joint configuration and installation quality affect whether the monitoring system remains usable as movement develops.

Expected Movement

Larger casing can provide more allowance for curvature before a traversing probe becomes restricted. Anticipated deformation should therefore be considered when selecting casing size.

Installation Depth

Depth influences casing handling, joint count, installation time, grouting and the mechanical demands imposed on the completed casing string.

Joint Selection

Quick, flush, external and telescopic connection concepts solve different installation problems. The correct joint depends on the actual casing system and expected ground behaviour.

Probe Compatibility

Confirm internal dimensions and groove geometry against the intended portable inclinometer probe or in-place sensor system before ordering.

Ground Behaviour

Soft-ground settlement, lateral squeezing or concentrated shear can impose different demands from installation in competent soil or rock.

Reference Zone

For many borehole applications, the installation must extend sufficiently into stable ground to provide a reliable reference for interpreting movement.

PE / HDPE Selection

Consider PE/HDPE when the well environment changes the design problem.

GEOLUR positions PE and HDPE engineering pipes for selected deep dewatering, pumping, recharge, relief, environmental and corrosive-environment applications. Selection should be based on the complete engineering duty rather than material reputation alone.

Depth & Installation

Deep installations increase handling, axial and connection demands. Review the proposed installation method and loads before selecting a pipe configuration.

Hydraulic Duty

High-capacity pumping or recharge applications require consideration of internal diameter, well screen arrangement, pump compatibility and expected flow conditions.

Chemical Environment

Groundwater chemistry, contaminated environments and coastal conditions may influence material selection, but chemical compatibility should be assessed against the actual exposure.

Connection Method

The connection system must match installation and service requirements. Pipe material cannot compensate for an unsuitable joint design.

Temperature

Installation and operating temperature can influence polymer behaviour and should be considered where projects involve unusual climatic or process conditions.

Project Specification

Where a consultant or authority specifies material grade, dimensions, standards or testing, those requirements govern the final supply configuration.

Custom Perforated Pipes

Do not select a well screen by slot width alone.

Perforations form the hydraulic interface between the pipe and surrounding groundwater or filter system. The opening geometry must therefore be selected as part of the complete well design.

Slot / Opening Size

Coordinate opening dimensions with formation grading, filter-pack design and the intended hydraulic function.

Open Area

The number and distribution of openings influence hydraulic entry area as well as the amount of pipe wall removed.

Pattern

Longitudinal slots, circumferential arrangements or project-specific perforation patterns should follow the intended well or drainage function.

Screened Length

The screen should target the required hydraulic interval rather than automatically extending over the full depth of the installation.

Important: custom perforation is an engineering variable. GEOLUR can review requested slot or perforation geometry against the supplied project specification, but hydraulic and geotechnical design remains project-specific.

Decision Factors

Eight questions should be answered before a pipe is specified.

What must it do?

Monitor groundwater, guide an inclinometer, pump water, recharge an aquifer, relieve pressure or provide drainage?

How deep?

Installation depth affects handling, connections, structural demand, drilling geometry and construction method.

What diameter?

Diameter should follow instrument compatibility, hydraulic duty, borehole size, pump dimensions and expected deformation.

What environment?

Review groundwater chemistry, contamination, coastal exposure, temperature and other project-specific conditions.

What connection?

Threaded, flush, external, quick or other joint systems have different installation and performance characteristics.

What openings?

For screens and perforated pipe, define slot size, pattern, open area and screened interval around the hydraulic design.

What loads?

Consider installation forces, settlement, bending, squeezing, groundwater conditions and expected service deformation.

What documentation?

Identify required drawings, material documentation, inspection records, standards and project-specific QA/QC before procurement.

Application-Based Selection

The same project may need more than one pipe family.

Large geotechnical projects frequently combine deformation monitoring, groundwater observation and groundwater control. Selecting by application prevents different pipe functions from being confused.

Deep excavation and basement projects

A deep excavation may use ABS inclinometer casing in diaphragm walls or surrounding boreholes, PVC/PVC-U for standpipes or groundwater monitoring wells, and separate dewatering or recharge well pipes. These products perform different functions and should be specified independently.

Tunnel and underground works

Tunnel projects can require inclinometer casing for ground-movement monitoring together with groundwater observation or relief systems. Pipe selection should follow the monitoring and groundwater-control design rather than adopting one material across every installation.

Slopes and embankments

ABS casing may be used for vertical or horizontal inclinometer monitoring, while standpipes or monitoring wells can require PVC/PVC-U screened systems. The expected deformation range is particularly relevant to inclinometer casing selection.

Dewatering and groundwater control

Well depth, pumping capacity, screen interval, groundwater chemistry, filter design and installation method determine whether PVC/PVC-U, PE/HDPE or another specified system is appropriate.

Environmental monitoring wells

Material compatibility, screen interval, slot selection and construction cleanliness are important because the well must provide groundwater data or samples representative of the target formation.

Coastal and corrosive environments

Polymer pipe can provide useful corrosion resistance, but the correct material should still be checked against groundwater chemistry, mechanical duty, connections, temperature and the complete service environment.

Regional Engineering Conditions

Selection priorities change with ground, groundwater and climate.

GEOLUR supports international project enquiries, including Southeast Asia, Europe and other infrastructure markets. Regional context matters because identical-looking pipe can face very different installation and service conditions.

Southeast Asia

Soft ground, high groundwater levels, deep urban excavations, transport infrastructure and intensive groundwater-control works can make settlement tolerance, casing integrity and well performance critical selection factors.

Europe

Infrastructure, environmental monitoring, slope, rail, road and groundwater projects often place strong emphasis on specification compliance, documented product characteristics and long-term monitoring performance.

Coastal & Aggressive Sites

Coastal groundwater, contaminated ground or unusual chemical exposure requires material compatibility to be checked against actual project conditions rather than inferred from a generic corrosion-resistance statement.

Specification & QA/QC

Define what must be verified before asking for a price.

A technically complete RFQ improves both procurement accuracy and quotation quality. GEOLUR recommends separating required project characteristics from optional preferences.

Material / resin requirement
Nominal and actual dimensions
Pipe or casing length
Wall / structural requirement
Connection type
Required accessories
Slot or perforation geometry
Screened interval
Probe or pump compatibility
Installation depth
Ground / groundwater environment
Expected movement where applicable
Applicable project standards
Required inspection documentation
Packaging requirements
Delivery destination

Do not assume that a generic industry specification automatically describes a GEOLUR product. Product-specific dimensions, materials, tolerances, test requirements and certification should be confirmed against the quotation and approved technical submittal.

Why GEOLUR

A narrower product range allows a more useful technical conversation.

GEOLUR focuses on engineered pipe systems used in geotechnical monitoring, groundwater observation and groundwater-control applications rather than presenting an unrestricted catalogue of unrelated plastic products.

Application-Led Review

Tell GEOLUR what the installation must accomplish. The enquiry can then be reviewed around function, dimensions, environment, connection and required accessories.

Four Focused Families

PVC/PVC-U engineering pipes, ABS inclinometer casings, PE/HDPE engineering pipes and custom perforated pipes form a deliberately focused product architecture.

Custom Configuration

Where project requirements differ from standard arrangements, GEOLUR can review requested lengths, connections, screen or perforation configurations subject to technical and manufacturing feasibility.

Specification Review

Project BOQs, drawings and technical specifications can be submitted with the enquiry so commercial quotation is tied more closely to the actual requirement.

International Enquiries

GEOLUR supports project-based supply enquiries across international markets, subject to product specification, quantity, manufacturing and logistics requirements.

Engineering Context

GEOLUR is positioned within the Geoorigin Engineering Limited ecosystem, connecting specialist engineering pipe supply with broader geotechnical and monitoring knowledge.

RFQ Guide

The fastest quotation starts with the right technical information.

Send the available project specification, BOQ or drawing together with the information below. If some items are not yet defined, identify them as “to be confirmed” rather than guessing.

Project Information

Project name, country, application, installation quantity, required delivery schedule and destination.

Pipe Information

Material, diameter, length, connection, screen/perforation requirement, accessories and total quantity.

Engineering Conditions

Depth, groundwater conditions, anticipated movement, hydraulic duty, pump or instrument compatibility and any unusual chemical or environmental exposure.

Compliance Information

Applicable specification, required standards, testing, inspection, certificates, submittals, packaging and documentation requirements.

Request a Quote Discuss Your Requirement

Selection FAQs

Common questions before specifying engineering pipe.

Should I choose PVC or HDPE for a groundwater well?

There is no universal answer. The choice depends on the well function, depth, diameter, installation method, hydraulic duty, groundwater chemistry, connection requirements and project specification. PVC/PVC-U is widely used for monitoring wells and standpipes, while PE/HDPE may be considered for selected deeper, pumping, recharge or aggressive-environment applications where the design calls for it.

Can ordinary PVC pipe be used as inclinometer casing?

Not as a generic substitute for purpose-designed grooved casing. A traversing inclinometer probe requires compatible guide geometry so that wheel orientation is controlled. GEOLUR therefore treats ABS inclinometer casing as a separate precision product family.

How do I choose an inclinometer casing diameter?

Consider probe compatibility, borehole diameter, installation depth and expected deformation. Larger casing can generally accommodate greater curvature before probe passage becomes restricted, but the appropriate configuration must match the actual project and monitoring system.

How should well-screen slot size be selected?

Slot or opening size should be coordinated with the surrounding formation and, where used, the filter-pack design. Hydraulic performance, particle retention, screen open area and project requirements should be considered together.

Does a larger open area always make a better well screen?

No. Open area affects hydraulic entry, but increasing the amount of removed pipe wall can also affect structural behaviour. Screen design therefore requires a balance between hydraulic and mechanical requirements.

Which joint type should I choose?

The answer depends on the product family and installation. Consider installation speed, external diameter restrictions, sealing requirements, axial or settlement movement, handling and the approved project specification.

Is chemical resistance enough to choose a pipe material?

No. Chemical compatibility is only one criterion. Structural duty, temperature, installation method, connection, hydraulic or monitoring function, service life and project requirements must also be considered.

Can GEOLUR manufacture custom perforated pipe?

GEOLUR accepts enquiries for custom perforated pipe systems. Supply feasibility depends on material, dimensions, slot or perforation geometry, pattern, quantity and project requirements. Submit the required drawing or specification where available.

What information does GEOLUR need before recommending a product family?

At minimum, identify the application, material preference if specified, diameter, installation depth, quantity and project location. For better technical review, also provide drawings, BOQ, connections, hydraulic or monitoring requirements, environmental conditions and required standards.

Can GEOLUR review my BOQ or technical specification?

Yes. A project BOQ, drawing or specification can be submitted with an enquiry so GEOLUR can review the requested pipe family, dimensions, connections, accessories and documentation before preparing a quotation.

Need Help Selecting?

Send the specification. GEOLUR will help define the supply scope.

Planning a groundwater well, dewatering system, inclinometer installation or custom perforated pipe package? Send GEOLUR your BOQ, drawing or project requirements for technical review and project-specific quotation.

Request a Quote Contact GEOLUR