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R-290 Refrigerant Manufacturer,Supplier and Exporter in India

Product Code : EL-MWLE-13033
Jlab Export is a leading R-290 Refrigerant Manufacturer,and suppliers in India

This can holds 370 g of R-290, the propane refrigerant used in bottle coolers, small display freezers and other compact commercial units. The small pack suits a single repair or a student charging exercise, where the whole charge is weighed in. Propane is highly flammable, so work in a ventilated area free of flames and sparks.

Specifications

Refrigerant	R-290 (propane)
Container	Can
Size	370 g
Minimum order quantity	10 units
Dispatch time	Usually 3–5 working days
Manufacturer	JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India

Classroom Charging Exercises with R-290

A sealed can makes a simple first lesson on saturation. Students connect it to Hydrocarbon Manifold Gauges, read its standing pressure at room temperature and check it against a propane pressure-temperature chart. The two agree because liquid and vapour sit together inside the can.

For a charging exercise, students evacuate a small circuit with Small Vacuum Pumps. The can then sits on a High Precision Charging Scale, whose 1 g sensitivity suits small hydrocarbon charges, while they weigh the charge in to the rating-plate figure. Afterwards they recover it with a Combustible Gas Recovery Machine, so the next group starts from an empty circuit.

Frequently Asked Questions

Why does the can pressure change with room temperature?
The can holds liquid and vapour together, so its pressure is the saturation pressure of propane at that temperature. A warmer room raises the pressure and a cooler one lowers it, whatever amount is left inside.

How do I know when the can is nearly empty?
Weigh it. The pressure stays near the saturation value until the last liquid boils off, so the gauge reading says little about the amount left. A scale shows the charge leaving the can in grams.

Can R-290 go into a system built for another refrigerant?
No. Charge it only into systems designed for propane, with R-290 named on the rating plate. A flammable refrigerant in a system built for a non-flammable one is a fire risk, and the pressures will not match.

How should part-used cans be kept?
Upright, in a cool and ventilated store away from heat, flames and electrical switches, and out of reach of students. Do not leave a can in direct sun or in a hot vehicle.