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Lid (Having Two Holes)
Lid (Having Two Holes) (Product Code: SCL-323/060) is a vessel cover with two openings, used to close a calorimeter or similar vessel while a thermometer and a stirrer pass through it in heat experiments. Physics teachers use it to cut heat loss from the liquid surface during calorimetry and cooling practicals. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India, for use in school heat experiments.
Key Details
| Parameter | Detail |
|---|---|
| Item | Lid with two holes |
| Typical use | Covering a calorimeter or similar vessel with a thermometer and stirrer inserted |
| Material and size | Please confirm with us when ordering |
| Product code | SCL-323/060 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Lid with Two Holes Used For?
In calorimetry and cooling experiments, heat escapes from an open vessel by convection and evaporation. Covering the vessel reduces that loss, while the two holes let a thermometer and a stirrer pass through so the liquid can be stirred and its temperature read without lifting the cover. This keeps results closer to the expected pattern in a Newton law of cooling apparatus or a method-of-mixtures experiment.
Fit the thermometer through a cork in one hole so its bulb hangs clear of the base, keep the stirrer moving freely in the other, and check that the lid sits flat on the rim before heating or mixing begins.
OEM Manufacturer
Jain Scientific Equipments Private Limited, trading as ScienceLab, is the OEM of this lid and makes it at its own licensed factory at Saha, Ambala, Haryana, India. Schools and dealers ordering heat apparatus can source the lid from the same manufacturer, which keeps replacements simple; ask us about matching sizes.
For institutional and tender vendor registration, the company’s details are GSTIN 06AAECJ8618A1ZT and LEI 3358004HRD1JIVXKYX49. See the ScienceLab company profile for more.
Related Physics Lab Equipment
Heat apparatus used with a two-hole lid:
- Apparatus for Newton's Cooling Law — the cooling experiment where a covered vessel is used
- Calorimeter Set, Copper — a calorimeter for heat-exchange experiments
- Double Layered Bronze Pot — a double-walled vessel for heat work
- Rubber Cork — holding the thermometer snugly in its hole
- Stop Clock — timing temperature readings
See more heat apparatus in the Physics Lab category.
Frequently Asked Questions
What are the two holes in the Lid (Having Two Holes) for?
The two holes in the Lid (Having Two Holes) let a thermometer and a stirrer pass through while the vessel stays covered. Students can stir the liquid and read its temperature continuously without lifting the lid and losing heat.
Which vessel does the Lid (Having Two Holes) fit?
The Lid (Having Two Holes) is listed without a diameter, so please confirm the vessel it must fit, such as a calorimeter or double-walled pot, through the ScienceLab contact page. The quotation will then state the matching size.
What is the Lid (Having Two Holes) made of?
The material of the Lid (Having Two Holes) is not stated on this page. ScienceLab will confirm the material and finish with your quotation; mention the vessel and the liquids you use so the offer suits your experiment.
Why cover a calorimeter during heat experiments?
Covering the vessel with the Lid (Having Two Holes) cuts heat loss from the liquid surface by convection and evaporation. That keeps recorded temperatures closer to the ideal pattern in calorimetry and cooling-law practicals.
Who manufactures the Lid (Having Two Holes)?
The Lid (Having Two Holes) comes from Jain Scientific Equipments Pvt Ltd (ScienceLab), its OEM manufacturer, which makes it at its own licensed factory in Saha, Ambala, Haryana, India. Replacement lids for existing vessels can be requested from the same maker.
What should a quotation request for the lid include?
A quotation request for the Lid (Having Two Holes) should include the product code SCL-323/060, the vessel it must fit, the quantity and the delivery location. Schools and dealers in India and international markets can add related heat apparatus.
Request a Quote
Ask for a quotation through the ScienceLab contact page or add the lid to the enquiry cart, noting the vessel it must fit. Quotations come direct from the manufacturer.
Last updated: 24 September 2026
