HVAC Refrigeration Valve ATX-12500DUS External Equalizer

        The ATX-12500DUS thermostatic expansion valve is a core flow control component widely applied in HVAC and commercial refrigeration systems, specially calibrated for R404A refrigerant with 57 tons rated cooling capacity. Adopting external equalizer structure and S-type charging power element, it accurately adjusts refrigerant flow according to evaporator temperature fluctuation, stabilizes superheat value, optimizes system heat exchange efficiency, and effectively prevents liquid hammer damage to compressors. The brass valve body features high pressure resistance, stable performance under low-temperature operating conditions, and easy installation and maintenance for various medium & large refrigeration equipment.

• Matches R404A refrigerant, 57 ton nominal cooling capacity
• External equalizer design, S-type charging power element
• High-strength brass valve body, corrosion & pressure resistant
• Stable superheat control, avoids compressor liquid slugging
• Wide applicable low-temperature working range
• Complete connecting ports, convenient on-site installation
• Standard production, interchangeable replacement parts

Item	Parameter
Model	ATX-12500DUS
Compatibility	R404A refrigeration & HVAC cooling systems
Refrigerant	R404A
Rated Capacity	57.0 Tons
M.P.	28
Charge Type	S
S.S.H	5 ℃
Equalizer Type	External Equalizer
Valve Body Material	Brass
Working Temperature	Low temperature refrigeration range
Mounting	Pipeline welding connection
Product Dimension	Custom size as valve structure
Product Weight	Approx. 1.2 kg
Country of Origin	Japan
HS code	84189990
Shipping Length	180 mm
Shipping Width	120 mm
Shipping Height	90 mm

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Application Scope

       

       Model ATX-12500DUS thermostatic expansion valve is suitable for cold storage, low-temperature freezer, marine refrigeration unit, industrial refrigeration equipment, medium & large commercial refrigeration machine and heat pump cooling systems using R404A refrigerant.

     We provide full series of refrigeration and HVAC spare parts, including control display panels, temperature controllers, sensors, power modules and industrial electrical accessories.

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