R421a blend. R-421A: Multiple Application HFC Refrigerant Blend HFC zeotropic blend of R-125 (58. 0%) R-134a (42. Refrigerant Guys labs tested R421a on mid temp systems and found no particular problems. Jun 9, 2022 · R422B is a HFC refrigerant that was designed to be a drop-in replacement for R22. Learn about all it's characteristics and check out the full PT chart. Phase Behavior and Zeotropic Characteristics Unlike pure refrigerants, R421A is a zeotropic blend, meaning it exhibits temperature glide during phase changes. HFC zeotropic blend of R-125 (58. Because the refrigerant is considered a "drop in", the process takes only a few steps (nothing more that recharging with the old R22). May 8, 2025 · This page contains a table showing percentage composition of HCFCs, HFCs, and HCs in refrigerant blends. In the wide choice you have today's on R22 replacement, one product stands out from the crowd to be the only two components blend. It consists of 2 components; that is, 58% of R-125 and 42% of R-134A. - **Impact on Phase Behavior and Zeotropic Characteristics Unlike pure refrigerants, R421A is a zeotropic blend, meaning it exhibits temperature glide during phase changes. This refrigerant was designed to be a safe, non-toxic, non-flammable, and reliable alternative to the HCFC R-22. Item #: GASR421A-25CYL Supplier #: R421A-25CYL Alternate Part #: COLS1-R421A-25CYL,GASRR421A-25CYL,GASRR421A-25LB,R421A25LB A 25lbs cylinder of R421A gas, that requires an active EPA Card to purchase. This low pressure refrigerant blends the HFOs R1234ze (E) and R1336mzz (E) (another new refrigerant) with the HFC R227ea and has a GWP of just 148. R421A R421A is another blend developed to serve as an alternative to R22. Less components mean less fragmentation at high temperatures and the patented lubricant additive guarantee oil return to the compressor without the use of any Hydrocarbons. The refrigerant blend came into existence at a time when governments had signed a treaty to eliminate ozone-depleting refrigerants. "What refrigerant can be mixed with R22?" is a question we hear a lot these days. Best Use: A non-ODP blend used in medium and high temperature residential, commercial, and industrial refrigeration and air conditioning applications. 2 °F Boiling Point, Tetra¿uoroethane, 1,1,1,2, HFC Refrigerant, Cylinder Container, Blue, +181 °F Critical Temperature, 75. Usable with Mineral, AB or POE oils, this refrigerant can be be used in air conditioning, medium and high temperature Feb 9, 2025 · Compatibility: R421A is compatible with R22 refrigerant oils, allowing a simple retrofitting process without extensive system upgrades. Let's demystify the puzzle by starting at the very core: understanding. production and consumption by the AIM Act, passed in 2020. 3 lb. S. ## What is R421A Refrigerant? Before diving into the PT chart, it's important to understand what R421A is. Unique non-ozone depleting, long-term replacement for R22 refrigerant Environmentally GREEN refrigerant Replace R22 without unit modification Does not contain hydrocarbons, such as Butane, Isopentane or Isobutane Replaces R22 with no change of oil Usable in compressions designed for R22 Usable with Mineral, AB or POE oils Only 2-component blend to replace R22 Non-flammable; Rated A1 by ASHRAE Sep 15, 2023 · Global warming potential (GWP) of HFC refrigerants Using the latest updated data from UNEP’s RTOC 2022 report, we have compiled the 100-year GWP and 20-year GWP values of hydrofluorocarbon-based (HFC) refrigerants. He or she will discover the similarities and differences between these refrigerants, which will be helpful in determining… R421Ais a HFC blend replacement with zero ODP and is compatible with both synthetic and mineral oils. ft³ Density Choice™ R-421A is a unique non-ozone depleting replacement for R-22. This characteristic affects the shape and interpretation of the PT chart: - **Temperature Glide:** The temperature at which the refrigerant evaporates or condenses changes over a range rather than at a constant temperature. - **Impact on Oct 11, 2017 · R-410A is an HFC refrigerant that is a blend of the HFC R-32 and the HFC R-125. 8% to 19. Compatibility: R407C is designed to be compatible with R22 systems, making it an excellent choice for retrofitting. Wondering what refrigerant can be mixed with R-22? Learn all about drop-in refrigerants and why you might want to use one – or not. This article will provide an in-depth overview of the R421A PT chart, its importance, and how to interpret and use it effectively. Usable with Mineral, AB, or POE oils, this refrigerant can be used in air conditioning, medium and high temperature residential, commercial, and industrial refrigeration applications. R421A is a HFC blend replacement with zero ODP and is compatible with both synthetic and mineral oils. Is R421a a good refrigerant? This last important fact makes R421a from Choice Refrigerant the safest product for any system that works with R22. Details Choice™, R-421A Refrigerant, Clear Gas, -41. Eco-Friendly: It significantly reduces the GWP and is considered safer for the environment. 0%), that is designed for use to replace R-22 in direct expansion refrigeration and AC systems. Many R-22 alternatives on the market have 3, 4 and even 5 separate refrigerant components that comprise the blend. Performance: It offers similar pressure-temperature characteristics, allowing for efficient operation in existing R22 units. As formulated, it is no-t oxic and non-flammable. This last important fact makes R421a from Choice Refrigerant the safest product for any R-421A Refrigerant, 25 lb CylinderUnique non-ozone depleting, long-term replacement for R22 refrigerant Environmentally GREEN refrigerant Replace R22 without unit modification Does not contain hydrocarbons, such as Butane, Isopentane or Isobutane Replaces R22 with no change of oil Usable in compressions designed for R22 Usable with Mineral, AB or POE oils Only 2-component blend to replace R22 Sep 30, 2020 · Amongst the new refrigerants is Honeywell’s non-flammable (A1) R134a alternative blend R471A. Refrigerant Guys labs tested R421a on mid temp systems and found no particular Phase Behavior and Zeotropic Characteristics Unlike pure refrigerants, R421A is a zeotropic blend, meaning it exhibits temperature glide during phase changes. R-421A Refrigerant 25 LB In Great Price If you don't have license, you may simply fill out the disclaimer (the form link be attached at the confirmation email) R421A is a hydrofluorocarbon (HFC) refrigerant blend that is designed as a replacement for R22 in various air conditioning and refrigeration applications. R421A is a zeotropic refrigerant blend composed primarily of R-134a, R-125, and R-600a. Choice™ R421A is a unique non-ozone depleting replacement for R22. Currently being phased down for virgin U. Each of these components have a unique PT curves that can vary from one another widely. R421Ais a two-component blend packaged with a proprietary lubricant which we recommend be transferred from the cylinder in the liquid phase. Consult the table in the Encyclopedia Global warming potential (GWP) of HFC refrigerants Find out more about refrigeration technologies and applications Consult the Encyclopedia of Refrigeration Blend Issues Charge all blends as liquid Azeotropes / Near-azeotropes (R-507A / R-404A) Fractionation from leaks small May be suitable for flooded systems Zeotropes Running / dormant systems Aug 28, 2025 · R421A: R421A is another blend that has gained popularity as a retrofitting agent for R22. Our table includes single component HFCs as well as blends that include at least one HFC in their composition. Of the four blends analyzed, R-421A offers the highest comparative efficiency, ranging from 4. Jun 9, 2022 · R-421A is a highly efficient hydrofluorocarbon that is a drop-in replacement for R22 refrigerant. Jun 13, 2023 · In this blog post, the characteristics of three R22 replacement refrigerants – R422D, R407C, and R421A – will be explored and compared. 0%), that is designed to replace R-22 in direct expansion refrigeration and AC systems. - **Impact on Sep 25, 2023 · The table gives 100-year and 20-year GWP values for HFC refrigerants, including both pure HFCs and blends containing at least one HFC in their composition. It performs comparably to R22 and is often noted for its low ODP (Ozone Depletion Potential). 8% lower than R-22 at 35-65 °C (95-149 °F) average condensing temperature. It is designed to have similar properties while being less harmful to the Figure 2: Cooling Coefficient of Performance (COP) Comparison As shown, all four blends are thermodynamically less efficient than R-22 on an ideal-cycle basis. What is R421a made of? What are the components that make up R-421A? R-421A is comprised of a 58/42 blend of R-125/R-134a, and is packaged with a proprietary lubricant. t1xu bsfz ssloje vhoxl4 7roqx qphi p4xh u2p zijj 4motm