{"product_id":"automatic-in-plane-water-flow-tester","title":"Automatic In-Plane Water Flow Tester","description":"\u003cdiv\u003e\n\u003ch2\u003eAutomatic In-Plane Water Flow Tester – QualiGTX™ IPF A\u003c\/h2\u003e\n\u003cp\u003eThe QualiGTX™ IPF A Automatic In-Plane Water Flow Tester measures the flow rate per unit width and hydraulic transmissivity of geotextiles, geonets, and drainage geocomposites under constant hydraulic head and controlled normal stress. Qualitest designed the IPF A for accredited testing laboratories, geosynthetics manufacturers, and engineering consultancies that require reliable drainage performance data for contractual reporting.\u003c\/p\u003e\n\u003cp\u003eThe instrument accommodates specimens measuring 200 × 300 mm and applies normal stress from 10 to 250 kPa through a servo-driven force control system. Water flows along the plane of the specimen while an industrial touchscreen computer manages the testing sequence and automatically generates test reports.\u003c\/p\u003e\n\u003cp\u003eAdvanced water conditioning distinguishes the IPF A from conventional transmissivity testing systems. Its dedicated water supply tank maintains temperatures between 5 °C and 60 °C with 0.1 °C resolution, controlling viscosity throughout extended testing programs. An integrated dissolved oxygen analyzer monitors the aeration condition of the supply water, verifying adequate deaeration and helping prevent entrained gas from affecting measurements.\u003c\/p\u003e\n\u003cp\u003eAutomatic timing tracks test duration and cumulative water throughput before compiling the results into a report, eliminating manual data transcription. Operators can configure normal stress increments and the hydraulic gradient in advance, allowing the instrument to maintain consistent testing conditions across specimens and shifts. For laboratories conducting shipment acceptance testing of drainage products, the system provides traceable test records alongside quantitative flow measurements.\u003c\/p\u003e\n\u003ch2\u003eAutomatic In-Plane Water Flow Tester – QualiGTX™ IPF A Applications\u003c\/h2\u003e\n\u003cp\u003eThe QualiGTX™ IPF A supports geosynthetic drainage performance evaluation wherever water must travel along the material plane under compressive loading. Its applications extend from material research and product development to manufacturing quality control and construction acceptance testing.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eDrainage Geocomposite Manufacturing: Evaluates the drainage capacity of geonet cores and bonded geotextile composites under compressive stresses representative of actual service conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eLandfill Engineering: Assesses leachate collection systems, leak detection layers, and cover drainage materials under overburden pressures corresponding to waste column heights.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eGeotextile Production Quality Control: Performs batch testing of nonwoven filtration and drainage fabrics to verify that in-plane hydraulic conductivity remains within specified limits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eAccredited Testing Laboratories: Provides controlled water temperature, deaeration monitoring, and automated reporting to support conformity assessment requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eHighway and Railway Drainage Design: Measures the drainage performance of edge drains and separation layers under traffic-related and embankment loading conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eRetaining Wall and Basement Drainage: Evaluates prefabricated sheet drainage products installed behind structural walls, where hydrostatic pressure relief is an essential design consideration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eDam, Canal, and Reservoir Works: Examines drainage layers used for seepage management and slope protection in hydraulic infrastructure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eTunnel and Underground Waterproofing: Tests drainage sheets designed to channel groundwater infiltration toward designated collection systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eMining and Heap Leach Pads: Determines the performance of solution collection layers subjected to substantial stack loads and aggressive process fluids.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eResearch and Product Development: Facilitates comparative investigations into core geometry, filament structure, and bonding techniques and their effects on long-term drainage performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAutomatic In-Plane Water Flow Tester – QualiGTX™ IPF A Key Features\u003c\/h2\u003e\n\u003cp\u003eThe QualiGTX™ IPF A integrates automated load application and water flow regulation with advanced conditioning and monitoring functions to deliver consistent results throughout extended testing sequences.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eIndustrial Touchscreen Computer Control: Manages test configuration, load application, timing, and report generation through a centralized operator interface, reducing training requirements and setup errors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eServo-Controlled Normal Force System: Automatically applies and maintains the selected compressive load, keeping specimen stress consistent during extended steady-state flow measurements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eAutomatic Timing and Throughput Reporting: Records elapsed testing time and cumulative water volume, then generates reports without requiring manual data entry.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eThermostatted Water Supply with Tank: Maintains water temperatures from 5 °C to 60 °C with 0.1 °C resolution, helping stabilize water viscosity throughout the testing program.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eIntegrated Dissolved Oxygen Analyzer: Monitors the deaeration condition of the supply water to prevent trapped gas from obstructing flow channels and reducing measured drainage capacity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eMotorized Water Level Adjustment: Electrically positions the hydraulic head reservoir to establish the required hydraulic gradient, eliminating manual adjustment and associated positioning errors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eReal-Time Pressure and Time Display: Displays applied normal stress and elapsed testing duration, allowing operators to verify steady-state conditions before recording measurements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e200 × 300 mm Specimen Chamber: Provides a standardized specimen area and flow path for repeatable transmissivity measurements across production batches while better representing full-width product drainage geometry.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eWide 10 to 250 kPa Stress Range: Accommodates testing conditions ranging from shallow landscape drainage applications to heavily loaded landfill and embankment installations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTheory and Method\u003c\/h2\u003e\n\u003cp\u003eIn-plane water flow describes the movement of water parallel to a geosynthetic surface rather than through its thickness. Under laminar flow conditions, volumetric flow rate is proportional to the hydraulic gradient, in accordance with Darcy's law. Hydraulic transmissivity, represented by the symbol theta (θ), is calculated by dividing the flow rate per unit specimen width by the hydraulic gradient. Its unit is square meters per second (m²\/s).\u003c\/p\u003e\n\u003cp\u003eHydraulic transmissivity is also equivalent to in-plane permeability multiplied by the compressed material thickness. Consequently, the thickness retained under loading is directly related to the material's ability to convey water.\u003c\/p\u003e\n\u003cp\u003eNormal stress has a significant influence on drainage performance, in addition to the material's inherent properties. When a drainage core is compressed, its internal void space decreases, while the adjacent geotextile can press into the flow channels. This reduces the cross-sectional area available for water movement. Because this reduction is nonlinear, a drainage product that performs satisfactorily at 20 kPa may not meet requirements at 200 kPa. Testing across the 10 to 250 kPa range establishes a flow capacity curve that design engineers can use to estimate performance under site-specific overburden pressures.\u003c\/p\u003e\n\u003cp\u003eWater quality and conditioning are equally important for measurement accuracy. Dissolved gases can escape from the water inside the specimen, forming bubbles within the drainage channels and obstructing otherwise open flow paths. This interference can produce artificially low transmissivity readings. Water viscosity also changes by approximately 2 to 3% per degree Celsius, meaning uncontrolled temperature variations can cause measurement differences between morning and afternoon testing sessions.\u003c\/p\u003e\n\u003cp\u003eThe QualiGTX™ IPF A addresses these measurement challenges through its temperature-regulated water supply tank and integrated dissolved oxygen analyzer. Together, these systems maintain controlled water conditions and verify adequate deaeration before the operator accepts a measurement, supporting reliable and repeatable in-plane flow and hydraulic transmissivity results.\u003c\/p\u003e\n\u003ch2\u003eAutomatic In-Plane Water Flow Tester - QualiGTX™ IPF A Technical Specifications\u003c\/h2\u003e\n\u003ctable class=\"table table-style-align-center\" align=\"center\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\" width=\"612\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecimen Size\u003c\/td\u003e\n\u003ctd\u003e200 × 300 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNormal Stress Range\u003c\/td\u003e\n\u003ctd\u003e10 to 250 kPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNormal Load Control\u003c\/td\u003e\n\u003ctd\u003eServo system, automatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHydraulic Gradient\u003c\/td\u003e\n\u003ctd\u003e0.1 and 1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Condition\u003c\/td\u003e\n\u003ctd\u003eConstant head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater Level Adjustment\u003c\/td\u003e\n\u003ctd\u003eMotorized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater Temperature Range\u003c\/td\u003e\n\u003ctd\u003e5 °C to 60 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDissolved Oxygen Range\u003c\/td\u003e\n\u003ctd\u003e0 to 20 mg\/L, 0 to 200 %, 0 to 400 hPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDissolved Oxygen Accuracy\u003c\/td\u003e\n\u003ctd\u003e±1.5 % FS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDissolved Oxygen Repeatability\u003c\/td\u003e\n\u003ctd\u003e±0.5 % FS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDissolved Oxygen Resolution\u003c\/td\u003e\n\u003ctd\u003e0.01 mg\/L, 0.1 %, 1 hPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl System\u003c\/td\u003e\n\u003ctd\u003eIndustrial touchscreen computer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Output\u003c\/td\u003e\n\u003ctd\u003eAutomatic timing, throughput display, report generation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasured Properties\u003c\/td\u003e\n\u003ctd\u003ein-plane permeability (hydraulic conductivity)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Dimensions\u003c\/td\u003e\n\u003ctd\u003e1270 × 600 × 1500 mm (W × D × H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e200 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eIncluded Configuration\u003c\/h3\u003e\n\u003ctable class=\"table table-style-align-center\" align=\"center\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\" width=\"612\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Frame and Specimen Chamber\u003c\/td\u003e\n\u003ctd\u003eFloor-standing frame with 200 × 300 mm platen assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eServo Normal Load System\u003c\/td\u003e\n\u003ctd\u003eAutomatic application and hold of 10 to 250 kPa normal stress\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndustrial Touchscreen Computer\u003c\/td\u003e\n\u003ctd\u003eTest control, live readout, timing, and report generation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstant-Temperature Water Tank\u003c\/td\u003e\n\u003ctd\u003eRegulated supply water from 5 °C to 60 °C at 0.1 °C resolution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDissolved Oxygen Analyzer\u003c\/td\u003e\n\u003ctd\u003eMonitors aeration state of supply water to verify deaeration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotorized Head Reservoir\u003c\/td\u003e\n\u003ctd\u003eElectric water level positioning for gradient settings of 0.1 and 1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Qualitest USA LC","offers":[{"title":"Default Title","offer_id":53459916554551,"sku":null,"price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/automatic-plane-water-flow-teste.webp?v=1793367202","url":"https:\/\/qualitest.us\/fr\/products\/automatic-in-plane-water-flow-tester","provider":"Qualitest USA LC","version":"1.0","type":"link"}