R422D is a hydrofluorocarbon (HFC) refrigerant blend designed as a replacement for R-22, a widely used but ozone-depleting hydrochlorofluorocarbon (HCFC) refrigerant. R422D is part of a group of retrofit refrigerants developed to comply with environmental regulations, such as the Montreal Protocol and the U.S. EPA’s SNAP (Significant New Alternatives Policy) program, which aim to phase out ozone-depleting substances.

 

Composition of R422D

R422D is a zeotropic (non-azeotropic) blend consisting of three components:

R-125 (44.7%) – A non-ozone-depleting HFC with good thermodynamic properties.

R-134a (52.0%) – A widely used HFC refrigerant with low toxicity and good stability.

R-600a (Isobutane) (3.3%) – A hydrocarbon added to improve oil return and system performance.

 

Key Properties of R422D

ASHRAE Safety Classification: A1 (non-toxic, non-flammable)

Boiling Point: Approximately -43.5°C (-46.3°F) at atmospheric pressure

Global Warming Potential (GWP): ~1923 (lower than some other R-22 alternatives like R-407C but still high compared to newer refrigerants)

Ozone Depletion Potential (ODP): 0 (no ozone depletion effect)

Operating Pressure: Slightly higher than R-22 but lower than some other alternatives (e.g., R-410A)

 

Applications of R422D

R422D is primarily used in retrofit applications for existing R-22 systems, including:

Commercial refrigeration (supermarkets, cold storage, walk-in coolers)

Air conditioning systems (especially older units not designed for newer refrigerants)

Heat pumps (with proper system adjustments)

 

Advantages of R422D

Drop-in Replacement for R-22 – Can often be used without major system modifications, though performance may vary.

No Ozone Depletion – Unlike R-22, it does not contribute to ozone layer damage.

Compatibility with Mineral Oil (MO) and Alkyl Benzene (AB) Lubricants – Unlike some other alternatives, R422D does not always require a switch to POE (polyolester) oil.

Lower Discharge Temperatures – Reduces compressor stress compared to some other retrofit refrigerants.

 

Disadvantages & Challenges

Lower Efficiency – R422D can lead to reduced cooling capacity (5-15% less than R-22) and higher energy consumption in some systems.

Glide Effect (~5°F) – Being a zeotropic blend, it has a temperature glide, which can affect heat exchanger performance if not properly managed.

High GWP – While better than some alternatives, its GWP is still significant, making it less favorable under newer regulations (e.g., F-Gas regulations in the EU).

Potential for Fractionation – Due to its blend nature, leaks can alter composition, requiring proper handling and recharge procedures.

 

Comparison with Other R-22 Replacements

Refrigerant	Type	GWP	Oil Compatibility	Capacity vs. R-22	Notes
R422D	HFC Blend	~1923	MO/AB/POE	Slightly Lower	Drop-in, moderate glide
R407C	HFC Blend	~1774	POE Required	Lower (~10-15%)	Higher glide, needs TXV
R404A	HFC Blend	~3922	POE Required	Higher	Not ideal for AC, high GWP
R290 (Propane)	Natural HC	3	MO/AB	Similar	Flammable, low GWP
R410A	HFC Blend	~2088	POE Required	Much Higher	Not a direct R-22 replacement

Retrofit Guidelines for R422D

Oil Compatibility: Works with mineral oil in many cases, but POE oil may improve performance.

Charging: Must be charged as a liquid to maintain blend composition.

Leak Checks: Critical due to potential fractionation.

Expansion Valve Adjustment: May be needed to optimize performance due to glide.

 

Environmental & Regulatory Status

Accepted under SNAP (U.S. EPA) for certain applications.

Being phased out in some regions (e.g., EU F-Gas Regulation) due to high GWP.

Not a long-term solution but a transitional option for R-22 phase-out.

 

Conclusion

R422D is a practical short- to medium-term retrofit refrigerant for R-22 systems, offering ease of use and moderate environmental impact. However, its lower efficiency and high GWP make it less sustainable compared to newer alternatives like R-454B or natural refrigerants (e.g., R-290, CO₂). System performance should be evaluated before conversion, and long-term transitions to lower-GWP refrigerants should be considered.

 

Would you like additional details on specific applications or comparisons?

R422D Refrigerant Gas – Engineered for Reliability. Manufactured for Performance.

From FRIOFLOR – Your Trusted Refrigerant Gas Manufacturing Partner

To the discerning wholesaler:

 

In a market flooded with inconsistent quality and unreliable supply chains, FRIOFLOR stands apart. As a professional refrigerant gas manufacturer, we don't just source or repackage gas – we engineer, produce, and quality-control every batch to meet the most stringent international standards.

 

Today, we introduce you to R422D : a powerful, retrofittable refrigerant solution designed for medium and low-temperature commercial refrigeration systems. And we back it with the manufacturing integrity of FRIOFLOR.

 

Why R422D? The Wholesaler's Advantage

1. The Reliable R22 Retrofit Solution

R22 is being phased out globally. But thousands of systems are still running. Your customers need a direct, mineral-oil-friendly replacement – without costly system conversions.

 

R422D is specifically formulated to replace R22 in:

 

Direct expansion (DX) systems

 

Medium and low-temperature commercial refrigeration

 

Air conditioning chillers

 

Industrial process cooling

 

Unlike many alternatives, R422D works with mineral oil (MO), alkylbenzene (AB), and POE oils – dramatically lowering retrofit costs for end users.

 

2. Drop-In Simplicity = Repeat Business

Your technician customers don't want call-backs. They want solutions that work the first time.

 

R422D offers:

 

Near drop-in replacement for R22

 

No oil change required in most mineral oil systems

 

Lower discharge temperature than R22 – extending compressor life

 

Compatible with existing components (hoses, seals, driers)

 

This means faster jobs, happier end users, and more repeat orders for you.

 

3. Proven Performance, Real-World Results

R422D delivers:

 

Cooling capacity: Approximately 85–95% of R22 (varies by system)

 

Energy efficiency (COP): Comparable to R22 in most retrofit applications

 

Lower discharge pressure than R22 – reducing strain on older systems

 

For your customers, this translates to reliable cooling without a full system overhaul.

 

Technical Specifications – At a Glance

Property Value

ASHRAE Number R422D

Safety Group A1 (Non-toxic, Non-flammable)

Composition R125 / R134a / R600a (Zeotropic blend)

Ozone Depletion Potential (ODP) 0

Global Warming Potential (GWP) 2729 (AR4)

Lubricant Compatibility Mineral oil (MO), Alkylbenzene (AB), POE

Typical Applications R22 retrofit in commercial refrigeration & A/C

FRIOFLOR – Not Just a Supplier. A Manufacturing Partner.

When you choose FRIOFLOR, you are choosing:

 

✅ Manufacturing Excellence

We control the entire production process – from raw material sourcing to final cylinder filling. Every batch of R422D is:

 

Analyzed for purity (≥99.8% by weight)

 

Tested for moisture, air content, and acidity

 

Certified to meet AHRI 700 and ISO 17592 standards

 

✅ Consistent Supply, On-Time Delivery

No supply gaps. No production delays. Our dedicated manufacturing lines and strategic logistics network ensure you have product when your market demands it.

 

✅ Wholesale-Ready Packaging

Container Type Net Weight Application

Disposable cylinder 11.3 kg (24.9 lbs) Service & small retrofit

Disposable cylinder 25 kg (55 lbs) Commercial use

Refillable cylinder (ISO) 400 kg / 800 kg Bulk / industrial

ISO tank 20 tonnes Large wholesale orders

Custom labeling and private branding available upon request.

 

✅ Competitive Wholesale Pricing

Because we manufacture, not trade, we offer:

 

Factory-direct pricing – no middlemen margins

 

Volume discounts for container orders

 

Long-term supply contracts with fixed pricing options

 

✅ Technical Support You Can Trust

Your customers will have questions. We provide:

 

Retrofit guidelines and application notes

 

Pressure-temperature (PT) charts

 

Oil compatibility guidance

 

Safety data sheets (SDS) in multiple languages

 

Target Market for R422D – Where You Sell

R422D is in demand across:

 

Sector Specific Applications

Supermarkets R22 walk-in coolers, freezers, display cases

Convenience stores Ice machines, reach-in coolers

Cold storage Warehouse refrigeration systems

Food processing Production line chillers

Hospitality Hotel kitchen refrigeration

Industrial A/C Older R22 chillers (e.g., Carrier, Trane, York)

Pro tip for wholesalers: Many R22 systems remain in operation. Every one of them is a potential R422D sale. Position R422D as the cost-effective, low-downtime alternative to expensive system replacement.

 

Important Handling Notes for Your Customers

As a manufacturer, we insist on proper application:

 

Liquid phase charging required – R422D is a zeotropic blend. Charge as a liquid to prevent fractionation.

 

Check system components – While compatible with most materials, verify seals and hoses in very old systems.

 

Adjust expansion valve – TXV may require minor adjustment for optimal superheat.

 

Monitor operating pressures – Discharge pressure is typically lower than R22; suction pressure slightly lower.

 

Provide these guidelines to your technician customers – they will appreciate your technical competence.

 

Why Partner with FRIOFLOR Today?

Competitors FRIOFLOR

Resellers with inconsistent supply Direct manufacturer with stable production

Variable quality Laboratory-tested, batch-certified quality

Slow response times Dedicated wholesale support team

Limited packaging options Full range from 11.3kg to ISO tanks

Generic product data Technical documentation and retrofit support

Ready to Stock R422D from FRIOFLOR?

The R22 retrofit market is not shrinking – it's evolving. Wholesalers who stock reliable, cost-effective replacement gases win long-term customer loyalty.

 

Contact FRIOFLOR today to:

 

Request pricing and wholesale terms

 

Receive technical datasheets and SDS

 

Discuss private labeling for your market

 

Schedule a factory or supply chain audit

 

FRIOFLOR – Professional Refrigerant Gas Manufacturer. Your Competitive Advantage.

 

R422D is a hydrofluorocarbon (HFC) refrigerant blend designed as a replacement for R-22 in existing refrigeration and air conditioning systems. Here are some of its key advantages:

 

1. Drop-in Replacement for R-22

R422D is often used as a retrofit refrigerant in systems originally designed for R-22, requiring minimal modifications to the existing equipment.

 

2. Zero Ozone Depletion Potential (ODP)

Unlike R-22 (which has an ODP of 0.05), R422D does not contribute to ozone layer depletion because it contains no chlorine.

 

3. Lower Global Warming Potential (GWP) than Some Alternatives

While R422D is still an HFC with a GWP of around 2,729 (lower than R-404A but higher than some newer alternatives like R-454B or R-32), it can be a transitional option for systems phasing out R-22.

 

4. Good Thermodynamic Performance

Provides similar cooling capacity and efficiency to R-22 in many applications, making it a practical choice for medium-temperature refrigeration (e.g., supermarkets, cold storage, and air conditioning systems).

 

5. Non-Flammable & Non-Toxic (A1 Safety Classification)

Like R-22, R422D is non-flammable and non-toxic, making it safe for use in various HVAC&R applications without major safety concerns.

 

6. Compatible with Mineral Oil (MO) and Alkylbenzene Oil (AB)

Unlike some newer refrigerants that require synthetic POE oil, R422D can work with traditional lubricants, reducing the need for extensive system flushing during retrofits.

 

Limitations to Consider:

Higher GWP than Next-Gen Refrigerants: Newer options like R-454C or R-32 have much lower GWPs.

 

Not a Long-Term Solution: Due to environmental regulations (e.g., F-Gas regulations in the EU), R422D may face phase-downs in favor of more sustainable refrigerants.

 

Best Applications:

Retrofitting existing R-22 systems where other alternatives are not feasible.

 

Medium-temperature refrigeration (e.g., walk-in coolers, display cases).