Refrigeration Gases

What is a refrigerant gas?

A refrigerant is the working fluid in a cooling system. It boils at a low temperature in the evaporator, absorbing heat, and then condenses in the condenser, releasing that heat outside. The compressor keeps it moving round the circuit.

Each refrigerant has its own pressures, oil and safety class. For example, R410A runs at higher pressure than R22, R32 and R290 are flammable to different degrees, and blends such as R407C and R404A must be charged as liquid. Therefore, always use the refrigerant shown on the equipment nameplate.

How to choose the right refrigerant

• Use the refrigerant on the equipment nameplate.
• Never mix refrigerants or top up with a different gas.
• Charge blends such as R410A, R404A and R407C as liquid.
• Follow safety rules for flammable refrigerants such as R32, R290 and R600a.
• Recover old refrigerant rather than venting it.
• Use trained technicians and follow NEMA and local rules for controlled substances.

Applications of refrigerant gases

1. Split air conditioners. R410A and R32 in modern split and inverter ACs.
2. Domestic fridges. R134a and R600a in household fridges and freezers.
3. Cold rooms. R404A and R507 in medium and low temperature rooms.
4. Supermarket refrigeration. Display cases and plug-in coolers on R290 or R404A.
5. Chillers. R134a and R407C in many water chillers.
6. Vehicle air conditioning. R134a in many car and truck AC systems.
7. R22 replacement. R407C as a common retrofit option for some R22 AC systems.
8. Ice machines. R404A and R290 in commercial ice makers.
9. Brazing copper pipe. MAPP gas for brazing and soldering refrigeration lines.
10. Service and leak repair. Recharging systems after repairs and leak tests.

Why choose Sparks Plumbing Experts

1. Gases, oils and parts togetherRefrigerants, compressor oils, copper pipe, driers and tools come from one counter, so a repair needs one trip.
2. Brands technicians knowOur range includes names such as Danfoss, Maxron, Suniso and Emkarate.
3. Compatibility checksWe point out refrigerant, oil and voltage compatibility before you buy, which helps avoid costly mistakes.
4. Tools for the whole jobGauges, flaring kits, brazing torches and gas are stocked alongside the parts they install.
5. Visit or collect in NairobiOur store is at KCB Building, Enterprise Road, in the Industrial Area, so you can see parts before you buy or collect your order.
6. Quotes your wayAsk for prices by phone, WhatsApp, email or the online quote form, whichever suits you on site.
7. Over 1,600 products in one placeOur catalogue covers 55 categories, so one supplier can handle most of your parts list.
8. Help choosing the right partSend a nameplate photo, a drawing or the old part, and we help you match size and specification.
9. Single items or project quantitiesWe price a single replacement part just as readily as a full site order.
10. Supply across East AfricaWe serve customers across Kenya, and we also supply buyers in Uganda and Tanzania.

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