https://www.chillventa.de/en/ausstellerprodukte/cv18/product-9951504/forane-427a

Forane® 427A: the closest retrofit for R-22 at any level of temperature, from air conditioning to medium and low temperature refrigeration.

Forane® 427A is a new 100% HFC blend from Arkema offering an easier retrofit for existing R-22 installations.

R-22 is an HCFC and hence subject to the regulations of the Montreal Protocol. While the use of recycled R-22 will be totally banned in Europe from January 1st 2015, Forane® 427A is your long-term, retrofit solution.

Forane® 427A can be used in a large range of applications:

air-conditioning,
medium temperature refrigeration,
low temperature refrigeration.

Forane® 427A has been designed to offer the closest match to R-22 in term of performances as well as regarding the mass flow rates and operating pressures in both air conditioning and refrigeration. Due to its similar behavior in operation, Forane® 427A is the only retrofit that can be used in equipments designed for R-22 without requiring any changes on the installation (no need to change the expansion valves, liquid lines, condensing units or any other costly parts of your system).

Forane® 427A is non-toxic and non-flammable with an A1 ASHRAE safety classification, has zero ODP and one of the lowest GWP (2138) among R-22 retrofit solutions.

As Forane® 427A is a 100% HFC blend, it is consequently compatible with Polyolester (POE) lubricants. However, one specificity of Forane® 427A is its ability to tolerate a high residual amount of original oil in the POE lubricant (good oil return up to 10-15% of residual AB or mineral oil). Therefore, only one drainage of the system’s oil is necessary which makes for a simplified retrofit procedure. In some cases, it has been noticed that Forane® 427A has been used without changing the original oil if the system has an oil separator and reliable oil return.

Forane® 427A is the most cost-effective solution for the retrofit of R-22 installations and has been used successfully in a variety of industries for over seven years:

Commercial and domestic air conditioning: chillers, rooftop units, split systems, heat pumps, etc.
Commercial refrigeration and food-processing sector : supermarkets, warehouses, cold rooms, etc.
Industrial refrigeration.

A global chemical company and France’s leading chemicals producer, Arkema is building the future of the chemical industry every day. Deploying a responsible, innovation-based approach, we produce state-of-the-art specialty chemicals that provide customers with practical solutions to such challenges as climate change, access to drinking water, the future of energy, fossil fuel preservation and the need for lighter materials. With operations in more than 40 countries, some 14,000 employees and 10 research centers, Arkema generates annual revenue of approximately €6.4 billion, and holds leadership positions in all its markets with a portfolio of internationally recognized brands.
Arkema’s Fluorochemicals Business Unit produces and commercializes a range of fluorinated gases under the Forane® brand in the following markets worldwide:

Refrigerants for refrigeration and air conditioning, including commercial and industrial refrigeration, construction, automotive and other applications
Blowing agents for polymer foams, specifically polyurethanes and polystyrene;
Feedstock for the production of fluoropolymers;
Degreasing, cleaning and drying solvents;
Aerosol sprays (mainly for pharmaceutical applications)

Arkema’s Fluorochemicals Business Unit has a total of 4 production facilities worldwide with two of them located in Europe which produce and deliver to the market the full range of most used refrigerants, namely 134a and the various blends – 404A, 507, 407C, 410A and 427A (retrofit refrigerant for HCFC-22 installations).
Through its 2 R&D centres, Arkema’s Fluorochemicals Business Unit is actively participating in the development of the next-generation of low GWP refrigerants.