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LBT-1703 Microcomputer-Controlled Fully Automatic Geotextile Drainage Network Longitudinal Hydraulic Conductivity and Horizontal Permeability Tester

Determination of the longitudinal hydraulic conductivity and the 100-hour retention rate of drainage mats, as well as the in‑plane water‑flow capacity of geosynthetic materials, geotextiles, and geotextile fabrics. Product description: Suitable for measuring the permeate‑drainage performance of landfill leachate, groundwater, and surface‑infiltration water under various normal stresses and standard hydraulic gradients. It is also applicable to determining the longitudinal hydraulic conductivity retention of geodrainage nets and mats, and to testing the horizontal hydraulic conductivity and permeability of geotextiles and related products under a specified normal stress, using a constant head flow method.

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Geosynthetic Testing Equipment

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lbt@lbt.ltd

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+86-15102211717

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LBT-1703 Microcomputer-Controlled Fully Automatic Geotextile Drainage Network Longitudinal Hydraulic Conductivity and Horizontal Permeability Tester

Description

Product Introduction:

It is applicable to the measurement of the longitudinal hydraulic conductivity retention of geotextile drainage nets and mats under various normal stresses and standard hydraulic gradients, for use in leachate collection and conveyance, groundwater drainage, and surface infiltration‑water drainage at landfill sites. It is also suitable for testing the horizontal hydraulic conductivity and permeability coefficient of geotextiles and related products under a specified normal stress, as well as their performance under constant-head flow conditions.

Reference standard:

CJ/T452-2014 Geotextile Drainage Grid for Landfills, Appendix A

GB/T 40441-2021 Drainage and Water‑Control Mat

GB/T 17633-2019 Geotextiles and Related Products — Determination of In-Plane Water Flow Rate

EN ISO 12958 Determination of the Plane Flow Capacity of Geotextiles and Related Products

TB 10118-2016 “Test Code for Geosynthetics in Railway Engineering”

Q/CR549.6-2017 “Geosynthetic Drainage Materials for Railway Engineering”

Product Features:

1. Microcomputer system with touchscreen control;

2. The water‑flow section consists of fully rust‑proof components, made of stainless steel and acrylic.

3. The normal-pressure section is driven by a servo motor, with continuous adjustability and high precision.

4. The hydraulic gradient is measured automatically using laser technology with digital feedback.

5. Dual-purpose: it can be used for drainage‑net and pad‑type vertical hydraulic conductivity tests, as well as for determining the planar water‑flow capacity of geosynthetic materials, geotextiles, and geotextile fabrics.

Technical specifications:

Parameter Category	Parameter content
Monitor	7.8-inch true-color touch display
Hydraulic gradient measurement range	0–300 mm, digital feedback
Specimen Specifications for Vertical Hydraulic Conductivity Testing	300×350 mm (customizable based on the specific sample)
Specimen Specifications for In-Plane Water Flow Rate	Thickness: 50 mm, Length: 300 mm
Thermometer range	0-100℃
Time Controller	0–999.9 seconds, arbitrarily settable, with a control accuracy of 0.1 s.
Measurement method	Measure time at a constant flow rate, or measure flow rate at a constant time.
Water head measurement accuracy	0.2mm
Hydraulic gradient measurement method	Laser measurement, digital feedback
Normal-pressure-driven method	Servo drive, continuously adjustable
Normal stress loading range	0–2500 kPa, servo-driven, continuously adjustable
Normal pressure accuracy	±1%
Test Data Output	The program automatically calculates and prints.
Power supply voltage	220V (50Hz ±1%)
Overall dimensions	1600x600x1750mm
Overall machine weight	550kg

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FAQs

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We offer complete lab solutions including asphalt viscosity tester, asphalt rutting tester, geotextile permeability tester, low-temperature flexibility tester and concrete/cement test equipment, covering raw material detection for road, water conservancy and construction engineering projects

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Customer Reviews

European Plastic Pipe Manufacturer｜Purchase: Ring Stiffness & Hydrostatic Burst Tester

From Thomas Bennett, Quality Director, UK plastic pipe factory

2026.06.05

★★★★★

“We have purchased two sets of pipe testing equipment from Laibote (Tianjin) for 18 months. The ring stiffness and hydrostatic burst testing machines run stably for daily batch inspection, test data matches ISO standard requirements precisely, and the intelligent test software is easy for our operators to master. Their after-sales team offers timely remote technical guidance whenever we have operational problems, spare parts supply is efficient. We have arranged a second bulk order for our new production workshop and will recommend Laibote’s testing machines to our industry partners across Europe.”

Middle East Construction Lab｜Purchase: Universal Electronic Testing Machine & Geotextile Test Equipment

From Mohamed Kareem, Lab Manager, UAE third-party construction inspection institute

2026.06.05

★★★★★

“We compared multiple testing equipment brands from Europe and China before cooperating with Laibote. Their WDW universal tester and full-set geotextile testing instruments meet local construction testing standards perfectly. Custom fixtures tailored per our specimen specifications save much testing time. Pre-sale technical communication was patient and professional; engineers provided online operation training after goods arrived. Stable machine performance greatly improves our laboratory’s detection efficiency, we are satisfied with cost performance and overall service.”

Southeast Asia Rubber & Polymer Factory｜Purchase: Vicat Softening Point & Tensile Testing Machine

From Tanaka Hiroshi, R&D Supervisor, Indonesia rubber materials enterprise

2026.06.05

★★★★★

“Laibote’s Vicat softening point tester and electronic tensile machine have been applied to our raw material incoming inspection and new formula development for over one year. High testing accuracy effectively controls our product defect rate. What impresses us most is their responsive after-sale service; technical staff reply our troubleshooting requests within 24 hours even for time zone differences. Compared with expensive European brands, Laibote’s equipment balances quality and price excellently, we plan to expand procurement of auxiliary testing instruments next quarter.”

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LBT-1703 Microcomputer-Controlled Fully Automatic Geotextile Drainage Network Longitudinal Hydraulic Conductivity and Horizontal Permeability Tester

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