Rainfall Hydrographs Demo (1.2m x .8m x .2m) Manufacturer,Supplier and Exporter in India

Rainfall Hydrographs Demo (1.2m x .8m x .2m)

Product Code : SCL-CELE-14177

Overview

The Rainfall Hydrographs Demonstrator is a self-contained educational system designed to simulate and analyze rainfall-runoff relationships under controlled laboratory conditions. The unit enables students to obtain catchment rainfall and runoff hydrographs as functions of time, providing direct visualization and measurement of hydrological processes.

The apparatus consists of a rectangular tank representing a catchment area, which can be filled with gravel or soil media to simulate permeable and impermeable surfaces. Rainfall is simulated by two overhead spray nozzles, which deliver uniform precipitation over the tank area. The water flow rate is precisely regulated through a flow control valve and measured using an inline flowmeter.

Runoff from the catchment is collected in a motor-driven traversing vessel fitted with seventeen storage compartments, which moves automatically beneath the outlet. The collection pattern forms an immediate histogram of runoff versus time, allowing the construction of hydrographs. The traversing vessel and timing mechanism are electronically controlled via an integrated control console.

Transparent side curtains prevent water spillage while ensuring clear visualization of the experiment.
A detailed Operation & Maintenance Manual is supplied with the trainer.


Key Features

  • Simulates catchment rainfall and runoff processes in a controlled laboratory setting.
  • Electronically controlled, motor-driven traversing vessel with 17 compartments provides direct hydrograph visualization.
  • Transparent curtains prevent spillage while allowing clear observation of the rainfall and runoff process.
  • Adjustable flow rate with precision flow control valve and flowmeter for accurate rainfall intensity regulation.
  • Comprehensive set of accessories for studying both permeable and impermeable catchments.
  • Compact, floor-standing or bench-mounted design suitable for laboratory use.
  • Supplied with complete user and experimental manual for guided operation.

Technical Specifications

Component

Specification

Tank Dimensions

1.2 m (L) × 0.6 m (W) × 0.2 m (H)

Tank Material

Non-corrosive with transparent side curtains

Flow Range

0.4 – 4.4 L/min

Runoff Collector

17 compartments × 0.5 L each

Overall Dimensions

1.58 m (L) × 0.9 m (W) × 1.05 m (H)

Flow Control

Precision valve and flowmeter

Rainfall System

Dual overhead square-pattern spray nozzles

Traversing Mechanism

Motor-driven, electronically controlled with timer

Accessories Included

Polythene sheet (impermeable catchment), 4 reservoir containers, permeable pipe (tile drain)


Ordering Specifications

  • A self-contained rainfall simulation and runoff measurement unit designed to obtain catchment rainfall and runoff values as functions of time.
  • Includes two overhead spray nozzles, flowmeter, solenoid valve, and motor-driven traversing vessel with seventeen compartments.
  • Tank dimensions: 1.2 m × 0.8 m × 0.2 m (L×W×H).
  • Flow range: 0.4–4.4 L/min.
  • Includes electronic console, flow regulation system, and comprehensive instruction manual.

Experimental Capabilities

  1. Generation of storm hydrographs from single or multiple rainfall events.
  2. Study of runoff from previously saturated catchments.
  3. Analysis of runoff from impermeable surfaces using polythene sheet.
  4. Investigation of the effect of moving storms on the flood hydrograph.
  5. Evaluation of reservoir storage effects on hydrograph shape.
  6. Study of land drainage impact using permeable pipes and gravel beds.

Required Services

Service

Specification

Water Supply

Hydraulics bench or cold water supply (4 L/min required)

Drainage

Required

Electrical Supply

220–240 V AC, Single Phase, 50 Hz

Granular Medium

1 m³ of washed, well-graded gravel (2.0–5.0 mm diameter)

   

Office Address

Works: #975 Malleshwaram,
Bengaluru, Karnataka 560003

[email protected]

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