From Jan 27-30, 2026, DunAn Environment participated in HVAC&R JAPAN 2026 at Tokyo Big Sight, one of Japan’s most influential HVAC&R exhibitions and a key industry event marking the 70th anniversary of JRAIA.

At the show, DunAn presented a range of system oriented solutions and core components designed to support the industry’s transition toward low-GWP refrigerants, higher efficiency, and enhanced system safety.

Key Highlights

Silent Electronic Expansion Valves

DunAn showcased its Silent, Ultra-Silent, and Full-Silent EEV series, featuring proprietary flow control and damping designs that significantly reduce refrigerant noise while ensuring long-term reliability.

Flammable Refrigerant Safety Solutions (R32 / R290)

With Japan accelerating the shift from R410A to R32, DunAn introduced its Bi-directional Quick Shut-Off Valve (QSV):

Designed for flammable refrigerant systems

Large flow capacity with low internal leakage

Ultra-fast shut-off: valve closing time as low as 0.1 seconds

Automatically closes on power loss to enhance system safety

Heat Exchangers for Heat Pump Applications

IPHX Inserted Microchannel Heat Exchanger: up to 4.5 MPa design pressure, reduced internal volume, suitable for both condenser and evaporator use

MPHX Microplate Heat Exchanger: up to 48% internal volume reduction, helping meet low-charge requirements for R290 systems

Stainless Steel Components

DunAn also presented stainless steel four-way reversing valves and tube assemblies, backed by over 15 years of R&D and large-scale manufacturing experience.

Strengthening Local Engagement

Supported by DunAn Japan, the showcased products demonstrated strong alignment with local market needs. The booth attracted continuous interest from engineers and customers, with in-depth discussions on applications, safety, and system integration.

What’s Next in 2026

HVAC&R JAPAN marked the first stop of DunAn Environment’s 2026 global exhibition tour.

AHR Expo | Las Vegas — Feb 2–4 | Booth SU1473

ACREX India | Mumbai — Mar 12–14 | Booth D20

MCE | Milan — Mar 24–27 | Hall 11, Booth A27

We look forward to meeting partners worldwide and shaping the future of HVAC&R together.