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Vacuum Pump, Hand
Vacuum Pump, Hand (Product Code: SLE/LI/30) is a lightweight manually operated pump used to draw a partial vacuum, or build up air pressure, in small vessels during school and college science practicals. Teachers use it where no power socket is available or where students should feel the effort of pumping, since each stroke moves 15 cm³ of air, reaching a maximum vacuum of 50 mmHg or a positive gauge pressure of up to 2 atm. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Operation | Hand operated, lightweight |
| Volume per stroke | 15 cm³ |
| Maximum vacuum | 50 mmHg (as listed) |
| Positive pressure | Gauge pressures up to 2 atm |
| Power | None required (manual) |
| Product code | SLE/LI/30 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
What Is a Hand Vacuum Pump Used For?
In physics lessons a hand pump makes air pressure visible: students can partly evacuate a small bell jar or flask and watch a balloon expand, see water boil at reduced pressure, or connect a manometer and read the pressure change after each stroke. Reversed to pressure mode, the same pump pushes air into a sealed vessel to show how gas pressure rises as more air is added, which links neatly to lessons on the gas laws.
Because it needs no electricity, this piece of physics lab equipment works on any bench, in a field station or during an outdoor demonstration. Connect it with thick-walled tubing, keep every joint tight, and pump steadily rather than in jerks. Stay within 2 atm when pressurising, and never pressurise glassware that is not designed for internal pressure; for larger volumes or deeper vacuum, an electric pump is the better tool.
Supplier
This manual pump is supplied by Jain Scientific Equipments Private Limited, the company that trades as ScienceLab from Ambala, Haryana. Schools, colleges, science centres and dealers in India and international markets can order it on its own or with tubing, bell jars and manometers for a complete demonstration kit. Institutional buyers who need vendor registration details can record the supplier under GSTIN 06AAECJ8618A1ZT and Legal Entity Identifier 3358004HRD1JIVXKYX49. More about us is on the ScienceLab profile.
Related Laboratory Instruments
Pressure and vacuum demonstrations usually combine the pump with the items below:
- Vacuum Tubing — thick-walled tubing that will not collapse under suction.
- Bell In Glass Jar and Base — classic demonstration of sound needing a medium.
- Manometer, Glass — shows the pressure difference produced by each stroke.
- Vacuum Pump with Pressure Gauge — alternative with a built-in gauge for reading vacuum directly.
- Vacuum Pump, Electric — motorised rotary pump for larger volumes and deeper vacuum.
More equipment is listed under Laboratory Instruments.
Frequently Asked Questions
How much air does the Vacuum Pump, Hand move per stroke?
The Vacuum Pump, Hand draws 15 cm³ of air with each stroke. That small volume per stroke gives fine control and lets students count strokes against pressure readings, but it also means large vessels take many strokes to evacuate.
What vacuum can the Vacuum Pump, Hand produce?
The Vacuum Pump, Hand is listed with a maximum vacuum of 50 mmHg. It is intended for small vessels and classroom demonstrations; for deeper vacuum or large apparatus, the Vacuum Pump, Electric in the same range is the more suitable choice.
Can the Vacuum Pump, Hand also create pressure?
Yes, the Vacuum Pump, Hand can produce positive gauge pressures up to 2 atm as well as suction. Use only vessels and tubing designed to hold internal pressure, keep all connections secure, and release the pressure slowly after the demonstration.
Does the Vacuum Pump, Hand need electricity?
No, the Vacuum Pump, Hand is operated entirely by hand and needs no power supply. Its light weight makes it easy to carry between classrooms, laboratories and outdoor teaching areas, and there is no motor to service.
Which experiments suit the Vacuum Pump, Hand?
The Vacuum Pump, Hand suits small-scale demonstrations such as expanding a balloon in a partly evacuated jar, boiling water at reduced pressure, reading pressure changes on a manometer and showing gas pressure rising in a sealed vessel.
Who supplies the Vacuum Pump, Hand?
The Vacuum Pump, Hand is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, Haryana. The company quotes directly to schools, colleges and dealers, and supplies single pumps or class quantities to India and international markets.
Request a Quote
To order the Vacuum Pump, Hand (SLE/LI/30), send the quantity and any accessories you need through our contact page, or add it to the enquiry cart and we will reply with a quotation.
Last updated: 24 September 2026
