Water storage tanks testing instruments manufacturers in India meet the needs of rotomoulders who sell tanks that sit in sun for years and must stay opaque, strong and leak-free. Civil Mechanical India is among the suppliers in India providing material and finished-tank testers for BIS-oriented and customer-specified checks.
Tank testing divides into material, wall and whole-tank checks. Material checks include carbon black content and dispersion, density gradient and light transmission, which govern UV protection and algae resistance. Wall checks cover thickness by ultrasonic gauge, falling weight impact on cut sections and dumbbell specimens from the sheet. Ageing is evaluated in a fluorescent UV weathering chamber. Whole-tank checks use a hydrostatic leak stand and a vertical load test rig.
Most plants perform material checks on every resin lot and whole-tank checks on samples from each batch.
Last updated: November 2026
Tube furnace unit that determines the carbon black content in black or UV-stabilised polyethylene by pyrolysis and weighing. Used by tank makers to confirm UV protection level.
Transmitted-light microscope with camera for rating carbon black dispersion in thin microtomed polyethylene sections. Used by tank makers and compounders to avoid weak spots and UV failure.
Glass gradient column that measures density of polyethylene samples by float position in a liquid of graded density. Used to confirm resin grade of rotomoulded tanks.
Hydraulic die-cutting press for preparing tensile dumbbell specimens from tank wall and sheet samples. Used by tank plants to prepare samples for tensile and elongation tests.
Accelerated weathering chamber that exposes tank material samples to UV light and condensation cycles. Used by tank makers to compare UV stabiliser systems before committing to a resin grade.
Test stand that supports a tank while it is filled with water to rated capacity to look for leaks and measure wall bulging. Used by tank makers for final inspection of tanks up to 1000 litres.
Photometric tester that measures how much light passes through the wall of a water storage tank sample. Used to confirm that tanks inhibit algae growth in stored water.
Drop weight impact tester for assessing the impact resistance of rotationally moulded polyethylene water tank wall samples at ambient and low temperature. Used by tank manufacturers for batch release.
Handheld ultrasonic gauge that measures wall thickness of plastic tanks from one side without cutting. Used by tank makers and site inspectors to confirm minimum wall requirements.
Compression frame that applies a vertical load on the tank top or lid to check stiffness and deformation. Used by manufacturers to validate tank lid and roof design.
| Function | Products | What to confirm |
|---|---|---|
| Material composition | Carbon Black Content Tester for Polyethylene Tanks, Carbon Black Dispersion Microscope for Plastic Tank Material, Density Gradient Column for Polyethylene Tank Samples, Light Transmission and Opacity Tester for Tank Material | Furnace or pyrolysis range, microscope magnification, column liquid range and the method such as ISO 6964 or ASTM D1603 |
| Wall quality | Ultrasonic Wall Thickness Gauge for Plastic Tanks, Rotomoulded Tank Wall Falling Weight Impact Tester, Dumbbell Specimen Cutting Press for Polyethylene Sheets | Gauge probe frequency and range, drop weight and striker, cutting die shapes and press capacity |
| Ageing and whole-tank proof | Fluorescent UV Weathering Chamber for Tank Materials, Hydrostatic Leak Test Stand for Water Storage Tanks, Vertical Load Test Rig for Water Storage Tanks | Lamp type and irradiance control, tank volume range on the stand, load capacity and measurement of deflection |
Rigid plastic equipment is general: universal testing, pendulum impact, HDT and melt flow on standard specimens. Water tank instruments are chosen for rotomoulded polyethylene and its use outdoors, adding carbon black checks, UV ageing, light transmission and finished-tank leak and load rigs. A tank maker usually buys the general machines for resin and then these tank-specific tools to approve each product.
See also: Rigid Plastic Testing Equipments
The complete Water Storage Tanks Testing Instruments range (10 products), in alphabetical order:
Confirm the product standard, such as IS 12701 for rotomoulded tanks or IS 16012, along with customer requirements, and the methods they call for. Check the largest tank volume for the leak and load rigs, calibrate the thickness gauge for polyethylene, and confirm UV lamp type and irradiance control. Plan floor space, drainage and water supply.
Carbon black protects polyethylene from UV and blocks light that lets algae grow in stored water. Too little gives short life, and poor dispersion creates weak spots. A content tester and a dispersion microscope together verify both the amount and how well it is mixed.
Size the stand to your biggest tank and plan clear access for filling and drainage. For vertical load, check frame capacity, platen shape, deflection measurement and safety guarding. Ask whether stands can be built to handle both small domestic and large industrial tanks if your product range is wide.
Rotational moulding plants making water tanks, polyethylene masterbatch and powder suppliers, building product brands, government and housing agencies that inspect supplies, and third-party labs buy these instruments. A new plant usually starts with density, thickness, impact and leak checks, and adds UV weathering and carbon black testing once product warranties or tenders demand evidence of durability.
A section cut from the tank is placed on a support and struck by a falling weight with a defined striker. The energy that causes cracking or breakage shows how tough the wall is, and the mode of failure indicates moulding quality.
Samples float to a level matching their density in a column of graded liquid. The reading identifies the polyethylene grade and indicates whether moulding conditions or fillers changed the density, which affects strength and stiffness.
Yes. Civil Mechanical India supplies rotomoulders and labs across India and exports. Bulky rigs are built to order, and delivery and commissioning details are confirmed in the quotation.
Customers and tenders increasingly ask for weathering evidence on outdoor tanks. A fluorescent UV chamber ages samples in a few weeks, after which colour change and impact are checked. It is optional for basic QC but valuable for development.
Yes. Leak stands, load rigs and fixtures can be built to suit your tank diameter, height and volume. Please share tank dimensions and the range you produce.
As established manufacturers and suppliers for tender requirements from India, we undertake civil laboratory and industrial testing tenders as well as bulk and OEM supply of mechanical engineering and testing laboratory equipment. Please forward your tender specifications and our team will prepare a detailed quotation for Water Storage Tanks Testing Instruments.
Send us your equipment list or tender specification. We quote against IS, BS, EN, ASTM and AASHTO standards and ship to 90+ countries.
