Natural and Low-GWP Refrigerant Compatible Products
Natural and Low-GWP Refrigerant Compatible Products
Impact of Refrigerants on Our Lives and the Environment
Air conditioning and cold chain equipment support our daily lives, with many of these systems relying on refrigerants.
Refrigerants are substances used to transfer "heat", allowing them to cool or warm spaces and objects.
In the past, chlorofluorocarbons (CFCs) were the primary refrigerants in use.
However, scientific advancements have shown that CFCs deplete the Earth’s ozone layer and contribute to global warming.
As a result, global efforts are now focused on transitioning to new refrigerants with lower Ozone Depletion Potential (ODP) and Global Warming Potential (GWP), aiming to mitigate climate change and reduce environmental impact.
Evolving Environmental Landscape Surrounding Refrigerants
The environmental landscape surrounding refrigerants is evolving daily in response to advancements in climate change initiatives.
As part of international efforts to protect the ozone layer, the Montreal Protocol, adopted in 1987, set out to phase out high-ODP (Ozone Depletion Potential) CFCs*1 and HCFCs*2, transitioning towards alternative HFCs (HFC*3).
The Kigali Amendment in 2016 subsequently expanded these regulations to include alternative HFCs with high GWP (Global Warming Potential).
In response to these international developments, countries have been updating their regulations.
In Europe, F-gas regulations were implemented in 2006 to reduce the use of alternative HFCs. The amended F-gas regulation, passed in 2024, outlines a schedule for the complete phase-out of HFCs.
In the United States, the AIM Act, enacted in 2020, aims for a phased reduction in HFCs by 2035.
Japan also restricted the use of alternative HFCs under the amended Ozone Layer Protection Act from 2019 onwards. Additionally, Japan’s Fluorocarbon Emissions Control Act, initially enacted in 2015, was strengthened in 2020 to reinforce controls on fluorocarbons.
As a result, global regulations on traditional refrigerants are advancing, encouraging a shift towards more environmentally friendly alternatives, such as low-GWP and natural refrigerants.
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CFCs: Chlorofluorocarbons, were commonly used in the past but were found to have ozone-depleting properties, leading to their phase-out under the 1987 Montreal Protocol.
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HCFCs: Hydrochlorofluorocarbons, initially used as substitutes for CFCs, were also scheduled for phase-out under the Montreal Protocol in 2020, similar to CFCs.
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HFCs: Hydrofluorocarbons, unlike CFCs and HCFCs, do not deplete the ozone layer but have a high global warming potential.
Product Range
As a leading company in automatic control equipment, we are committed to fulfilling our responsibility by actively developing new products that adapt to the evolving environmental landscape surrounding refrigerants.
We provide a range of products designed to accommodate various new refrigerants, including options that meet North American UL/cUL certification and European ATEX Directive standards, ensuring safe use even with flammable natural refrigerants. Additionally, we offer specialized automatic control equipment for CO₂ refrigerants, which require high pressure.
R744(CO₂) Compatible Products
* For specifications and further details, please contact us. An indemnity agreement (or drawing) must be exchanged when using equipment with flammable refrigerants.
Expansion Valves
Solenoid Valves
- Type HPV Solenoid Valves for CO₂ Refrigerant
- Type HPV-E Electric Expansion Valves for CO₂ Refrigerant
Pressure Controls/Pressure Sensors
R290(Propane) Compatible Products
* For specifications and further details, please contact us. An indemnity agreement (or drawing) must be exchanged when using equipment with flammable refrigerants.
Expansion Valves
- Type UKV Electronic Expansion Valves
- Type LKV Electronic Expansion Valves
- Type VKV Electronic Expansion Valves
- Type AKV Electronic Expansion Valves
- Type RKV Changeover Valves/Electronic Expansion Valves
- Type QCX/RCX Thermostatic Expansion Valves
- Type SCX Thermostatic Expansion Valves
- Type CGX Constant Pressure Expansion Valves, Capacity Regulating Valves
Solenoid Valves
- Type TEV Small Sized Solenoid Valves for Refrigerant
- Type VPV Small Sized Solenoid Valves for Refrigerant
- Type SEV Solenoid Valves for Refrigerant
- Type RPV High Pressure Solenoid Valves for Refrigerant
- Type STF 4-way Reversing Valves
Regulating Valves/Water Regulating Valves/Check Valves
- Type AWR Pressure Actuated Water Regulating Valves
- Type VWR Pressure Actuated Water Regulating Valves
- Type GWR Pressure Actuated Water Regulating Valves
- Type SWR Pressure Actuated Water Regulating Valves
- Type CWR Pressure Actuated Water Regulating Valves
- Type BCV Check Valves
- Type FCV Check Valves
Pressure Controls/Pressure Sensors
- Type ACB/LCB Small Pressure Controls
- Type NSK Pressure Sensors
- Type XSK Pressure Sensors
- Type YSK Pressure Sensors
Other Products
R600a(Isobutane) Compatible Products
* For specifications and further details, please contact us. An indemnity agreement (or drawing) must be exchanged when using equipment with flammable refrigerants.
Expansion Valves
- Type UKV Electronic Expansion Valves
- Type LKV Electronic Expansion Valves
- Type AKV Electronic Expansion Valves
- Type RKV Changeover Valves/Electronic Expansion Valves
Solenoid Valves
- Type TEV Small Sized Solenoid Valves for Refrigerant
- Type VPV Small Sized Solenoid Valves for Refrigerant
Regulating Valves/Water Regulating Valves/Check Valves
- Type AWR Pressure Actuated Water Regulating Valves
- Type VWR Pressure Actuated Water Regulating Valves
- Type GWR Pressure Actuated Water Regulating Valves
- Type SWR Pressure Actuated Water Regulating Valves
- Type CWR Pressure Actuated Water Regulating Valves
- Type BCV Check Valves
- Type FCV Check Valves
Pressure Controls/Pressure Sensors
- Type ACB/LCB Small Pressure Controls
- Type NSK Pressure Sensors
- Type XSK Pressure Sensors
- Type YSK Pressure Sensors
Other Products
R32 Compatible Products
* For specifications and further details, please contact us. An indemnity agreement (or drawing) must be exchanged when using equipment with flammable refrigerants.
Expansion Valves
- Type UKV Electronic Expansion Valves
- Type LKV Electronic Expansion Valves
- Type VKV Electronic Expansion Valves
- Type AKV Electronic Expansion Valves
- Type QCX/RCX Thermostatic Expansion Valves
- Type SCX Thermostatic Expansion Valves
- Type CGX Constant Pressure Expansion Valves, Capacity Regulating Valves
Solenoid Valves
- Type TEV Small Sized Solenoid Valves for Refrigerant
- Type VPV Small Sized Solenoid Valves for Refrigerant
- Type BPV Bi-Flow Solenoid Valves
- Type SEV Solenoid Valves for Refrigerant
- Type RPV High Pressure Solenoid Valves for Refrigerant
- Type STF 4-way Reversing Valves
Regulating Valves/Water Regulating Valves/Check Valves
- Type AWR Pressure Actuated Water Regulating Valves
- Type VWR Pressure Actuated Water Regulating Valves
- Type GWR Pressure Actuated Water Regulating Valves
- Type SWR Pressure Actuated Water Regulating Valves
- Type CWR Pressure Actuated Water Regulating Valves
- Type BCV Check Valves
- Type FCV Check Valves
- Type UCV Check Valves
Pressure Controls/Pressure Sensors
- Type ACB/LCB Small Pressure Controls
- Type NSK Pressure Sensors
- Type XSK Pressure Sensors
- Type YSK Pressure Sensors
Other Products
Catalog
Inquiries about Automatic Controls
If you have any questions or need more information, please contact us.