Hydrostatic Pressure Apparatus
Product Code : EL-FMLE-10665
Hydrostatic Pressure Apparatus (code EL-FMLE-10665) is used to determine the static thrust that water exerts on a submerged flat surface and to compare the measured size and position of that force with simple theory. A quadrant on a pivoted balance arm sits over a 5.5 ltr acrylic tank, with a tray and adjustable counterbalance on the arm, 285 mm between the masses and the support point, and a set of 4 × 100, 1 × 50, 5 × 10 and 1 × 5 gr masses.
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Specifications
| Parameter | Detail |
|---|---|
| Use | Determining the static thrust of a fluid on a submerged surface and comparing its measured magnitude and position with simple theory |
| Quadrant | Assembled to the arm of a scale that swings around an axis; flat rectangular front surface |
| Balance arm | Fitted with a tray and an adjustable counter balance |
| Tank | Acrylic, with adjustable supporting legs (screwed feet) for levelling and a drainage valve |
| Water level scale | Graduated scale indicating the water level inside the tank |
| Levelling indicator | Circular spirit level mounted on the base of the tank |
| Experiments | Centre of pressure and resultant force at 90°, partially and totally submerged; centre of pressure, equivalent force and resultant force at angles other than 90°, partially and totally submerged; balance of moments |
| Tank capacity | 5.5 ltr |
| Masses to support point | 285 mm |
| Support point height on quadrant | 100 mm |
| Area of the section | 0.007 m² |
| Submerged quadrant depth | 160 mm (total) |
| Masses supplied | 4 of 100 gr, 1 of 50 gr, 5 of 10 gr and 1 of 5 gr |
| Dimensions and weight | |
| L × W × H | 600 × 400 × 400 mm |
| Weight | 30 kg |
| Supply | |
| Product code | EL-FMLE-10665 |
| Manufacturer | Engineering Lab Equipment, Ambala, Haryana, India |
What Is the Hydrostatic Pressure Apparatus Used For?
Water presses on a submerged surface with a force that grows with depth, and that force acts at the centre of pressure, which lies below the centroid of the surface; gates and tank walls are designed on this basis. Students level the tank with the screwed feet and spirit level, balance the empty arm with the counterbalance, then fill the tank in stages and add masses to the tray to bring the arm back to balance, reading the water level on the scale each time. The moment of the masses about the pivot gives the measured thrust and centre of pressure for partial and total submersion, at 90° and at other angles, for comparison with theory.
What to Specify When Ordering
- Quantity — the number of apparatus required.
Frequently Asked Questions
What does the apparatus measure?
It measures the static thrust a fluid exerts on a submerged flat rectangular surface and its point of action, the centre of pressure, so that both can be compared with simple theory.
How is the hydrostatic force balanced?
The force on the quadrant face creates a moment about the supporting axis, which is balanced by placing masses on the tray of the swinging arm once the adjustable counter balance has been set.
Which masses are included?
The masses supplied are four of 100 gr, one of 50 gr, five of 10 gr and one of 5 gr, used on the tray to balance the moment of the water force.
Can partly and fully submerged cases be tested?
Yes. The centre of pressure and resultant force are found with the quadrant partially and totally submerged, both at 90° and at angles other than 90°.
What are the key dimensions of the quadrant set-up?
The masses hang 285 mm from the support point, the support point is 100 mm high on the quadrant, the section area is 0.007 m² and the total submerged depth is 160 mm.
How is the tank levelled?
The acrylic tank has screwed adjustable feet, and a circular spirit level on its base shows when it is level. A drainage valve empties the 5.5 ltr tank after use.
OEM Manufacturer
The Hydrostatic Pressure Apparatus is made by Engineering Lab Equipment (Engineering Labs Equipment Pvt Ltd) at its works at Plot No. 43, Industrial Park, Sector 2, Growth Center, Saha, District Ambala, Haryana, India. The company designs, makes and tests fluid mechanics apparatus for flow measurement, pipe friction, pumps and hydrostatics for engineering colleges, polytechnics, technical training institutes and research laboratories in India and overseas, and can build equipment to an institution's own requirements. Tender and OEM enquiries are handled through the Tenders/OEM page.
Related Fluid Mechanics Equipment
- Fluid Statics and Manometry — hydrostatics and manometry panel with vertical tank, U tube, inclined tube and Vernier hook and point gauge.
- Pascal Apparatus — three-vessel hydrostatic pressure demonstrator with membrane, lever arm, masses and level pointer.
- Fluid Properties and Hydrostatics Bench — trolley-mounted hydrostatics bench with sealed water circuit, manometers, hydrometers, viscometer tubes and Archimedes module.
See the full Fluid Mechanics Lab Equipment range or all Mechanical Engineering Lab Equipment.
Request a Quote
For this and other fluid mechanics lab equipment, schools and colleges can contact Engineering Lab Equipment, a manufacturer, supplier and exporter based in Ambala, India. To ask for a quotation, send the number of hydrostatic pressure apparatus required and your delivery location through the contact page, or use the Add To Cart enquiry button on this page.
Last updated: October 2026
