Vacuum Jar with Bell Manufacturer, Exporter & Bulk Supplier from India for School Lab Equipment, TVET Tender & MOE Projects.
Vacuum Jar with Bell is manufactured by Didactic Lab Equipments, a leading School Lab Equipment Manufacturer in India serving Ministry of Education tenders, vocational training centres, polytechnics and engineering colleges across 100+ countries. Buy Vacuum Jar with Bell at factory-direct prices with full technical support.
Sound propagates only in a conduction medium.
The oscillations of the sound source (bell) arrive at the receiver (ear) through the propagation medium (air).
If there is no propagation medium near the sound source (vacuum inside the jar), sound cannot be sent from its source to the receiver.
If vacuum is realized inside the jar, no sound can be heard, although the hammer strikes the gong.
Blowing air gradually into the jar, at the beginning sound is very faint and then it becomes louder and louder.
The electric bell operates at 4-6 Vac and it hangs by a rubber string inside the jar.
The vacuum pump is equipped with a plate for the glass jar.
TECHNICAL CHARACTERISTICS:
Pump:
Flow rate: 38 l/min
Vacuum: 650 mmHg
Weight: 4,8 Kg Vacuum jar:
Dimensions: 25 x 14 cm
Bell: 4-6 Vac
Physics Workshop Laboratory Supplies Vacuum Jar with Bell Manufacturer,Supplier and Vacuum Jar with Bell Exporter in India
As one of India's leading Didactic Lab Equipment Suppliers and School Lab Equipment Manufacturers, we supply Vacuum Jar with Bell in bulk for educational tenders, MOE projects, TVET training centres, polytechnics, engineering colleges and research universities worldwide. Our manufacturing facility in Ambala (Haryana, India) ships to 100+ countries with factory-direct pricing.
Looking for Vacuum Jar with Bell in bulk for school lab tenders, college lab supply or vocational training centres? Our team handles the complete tender cycle — technical specifications, pre-shipment inspection, FOB/CIF logistics and after-sales support. Request a customised quotation today.