Danfoss 068Z3728 1/4 - 5.5TR Expansion Valve Body, TE 2, R448A,R449A, 3/8x1/2 in, Flare, External Equalized, Bi-Flow, -40 to 50 F, Capacity determined by Orifice size Sold Separately, Identical Product 068Z3732
$79.97
Price per Each
Price per Each
SKU
G068Z3728
Danfoss 068Z3728 1/4 - 5.5TR Expansion Valve Body, TE 2, R448A,R449A, 3/8x1/2 in, Flare, External Equalized, Bi-Flow, -40 to 50 F, Capacity determined by Orifice size Sold Separately, Identical Product 068Z3732
Weight : 0.701 LBR
Volume : 0.01730686 FTQ
Model : 068Z3728
UPC-EAN : 5702428961998
Weight : 0.701 LBR
Volume : 0.01730686 FTQ
Model : 068Z3728
UPC-EAN : 5702428961998
Danfoss 068Z3728 Thermostatic Expansion Valve – TE2 for R448A and R449A
The Danfoss 068Z3728 thermostatic expansion valve (TXV) is designed for high precision refrigerant control in medium and low-temperature systems using R448A or R449A. This externally equalized angleway valve ensures stable superheat, even under significant evaporator pressure drops.
Key Features
- Refrigerant: R448A, R449A
- Capacity: 0.25 to 5.5 tons (based on orifice)
- Temperature Range: -40 F to +50 F
- Connections: 3/8 inch flare inlet × 1/2 inch flare outlet
- Valve Type: Angleway, externally equalized
- Capillary Tube Length: 59 inch
- Max Working Pressure: 500 psig
- Static Superheat: 7.2 F (adjustable)
- Identical Part Number: 068Z3732
Applications
Ideal for supermarket display cases, walk-in coolers, transport refrigeration, ice machines, and other R448A/R449A systems requiring precise refrigerant metering.
Competitor Equivalent Part Numbers
- Emerson TX3 series
- Sporlan ER series
- ALCO TIE series
Frequently Asked Questions
- Is the orifice interchangeable?
Yes. The TE2 valve supports orifice sizes 01–05 for accurate capacity tuning. - Why external equalization?
It compensates for evaporator pressure drop to maintain stable superheat control. - Can it be used with other refrigerants?
No. This valve is calibrated exclusively for R448A and R449A. - What role does the capillary tube serve?
The 59 inch tube links the sensing bulb to the valve for responsive charge control.

G068Z3728
New
Ficha de datos
- Weight
- 0.701 LBR
- Volume
- 0.01730686 FTQ
- Model
- 068Z3728
- UPC-EAN
- 5702428961998
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