Permeability, Flow Nets And Darcy's Law
Product Code : LSK-FM-10468
Permeability, Flow Nets And Darcy's Law (SKU LSK-FM-10468) is a transparent seepage tank in which students model groundwater flow through sand around sheet piling, walls and dams, trace flow lines with dye and measure the head distribution. It serves soil mechanics and hydraulics practicals in civil engineering degrees and diplomas. Its maker, Science Lab Supplies, produces the tank and steel bench frame at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, and sells direct to colleges, tender contractors and distributors.
Specifications
Every feature of the seepage tank is given its own line in the table. In short, the tank has plate-glass sides that resist abrasion from the permeable medium and an open top; stainless-steel mesh baffles hold the sand at each end, overflow pipes set the end water levels, and filtered rear tappings feed a piezometer bank.
| Specification | Value |
|---|---|
| SKU | LSK-FM-10468 |
| Tank | Clear, transparent-sided tank |
| Tank sides | Plate glass, to resist abrasion from the permeable medium |
| Tank top | Open, for filling and setting up model structures |
| Positioning scales | Around the front edge of the glass tank |
| Mounting | Steel-framed bench with worktop |
| End baffles | Removable stainless-steel mesh, one at each end |
| Permeable medium | Held in place by the baffles (usually sand) |
| End compartments | Adjustable overflow pipes to set the water level at each end |
| Pressure tappings | In the rear of the tank, each with a filter against unwanted particles |
| Head measurement | Bank of piezometer tubes at the side of the apparatus |
| Flow visualisation | Dye-injector system |
| Model plates | Clear, self-sealing plates for sheet piling, walls and simulated dams |
| Services | Self-contained; needs only a mains water supply and drain |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Darcy's Law and Flow Nets Apparatus
With sand in the tank and a head difference set between the end compartments, students verify Darcy's law, find the permeability of the medium and draw flow nets beneath model structures. These fluid mechanics lab experiments support seepage topics in B.Tech/B.E. civil geotechnical and hydraulics labs and in diploma civil courses.
- Verifying Darcy's law and finding the coefficient of permeability, with seepage discharge collected in a Measuring Cylinder 500ml and timed.
- Drawing flow nets under sheet piling and simulated dams, with dye tracing flow lines.
- Measuring the head distribution along the tank with the piezometer bank.
- Describing the sand used as the medium against a Grain Size Chart ahead of the tests.
Standard Scope of Supply
Supply covers the glass-sided tank on its steel-framed bench, the mesh end baffles, end compartments with overflow pipes, filtered tappings with piezometer tubes, the dye-injector system and clear, self-sealing plates for building sheet-pile, wall and dam models. The baffles are designed to hold the permeable medium, usually sand, in place.
Packing, MOQ and Lead Time
Quotations are prepared for a single tank or for as many as a department needs, each giving packing, delivery time and price for that quantity. Other engineering lab equipment in India from the fluid mechanics range can be included on the same quotation.
Registered with an Importer-Exporter Code, Science Lab Supplies can ship to buyers in Malaysia, Peru, Egypt, Iraq, Nigeria and Kenya. The business is registered under Udyam as a manufacturing enterprise (UDYAM-HR-01-0014546) and for GST (GSTIN 06ADEPJ0574F2ZU). Departments can request a price for the seepage tank on the contact page, collect it with other items in the enquiry cart, or follow the lab tender page for tendered purchases.
Frequently Asked Questions
Does the tank need a hydraulic bench?
No. The apparatus is self-contained on its own steel-framed bench and needs only a mains water supply and a drain. The overflow pipes in the end compartments set the upstream and downstream water levels.
What models can students build in the tank?
Clear, self-sealing plates are supplied for modelling sheet piling, walls and simulated dams. Scales round the front edge of the tank help position the models and measure the flow nets.
Why are the tank sides made of plate glass?
Sand and similar permeable media scratch softer transparent materials. Plate glass resists this abrasion, so the flow patterns and dye lines stay clearly visible through the sides of the tank.
Is Science Lab Supplies the manufacturer or a trader?
Darcy's law tanks of this design are built by Science Lab Supplies at its Saha factory in Ambala, India, and each one is quoted by the company directly, not through a dealer.
Related Groundwater, Seepage and Soil Equipment
These units continue the water-resources theme: a rainfall catchment with water-table tappings, a dye-traced flow channel, a spillway model, a settling-column set, and two Soil Mechanics permeability rigs for laboratory soil samples, all suited to one civil engineering laboratory and one quotation.
- Hydrology And Rainfall Apparatus — jacking mechanism tilts a catchment fed by overhead spray nozzles.
- Flow Visualisation Channel — 15 mm acrylic channel with dye injectors, gates, weirs and hydrofoils.
- Spillway — four parts including a detachable ski jump and an apron with toothed block.
- Liquid Sedimentation Apparatus — five removable columns before a back-lit graduated panel.
- Soil Permeability Apparatus — 100 mm I.D. gun metal mould of 1000 ml with glass stand pipes on a board.
- Permeability Test System — 75 mm cell for constant head tests, read on three manometer tubes.
Browse the full Fluid Mechanics range, the Soil Mechanics range or all engineering laboratory equipment.
Last updated: 22 October 2026
