Refrigerant Boys TE2 Series Professional Mechanical Thermostatic Expansion Valve, specifically calibrated for the low-GWP HFO/HFC refrigerants R448A and R449A. Designed for medium- and low-temperature commercial and industrial refrigeration systems equipped with liquid distributors or high-pressure drop evaporators. Constructed of forged brass with SAE Flare threaded connections, a 1/4″ SAE external equalization line, a laser-welded stainless steel diaphragm, and a sensor bulb on a flexible capillary tube.
69,50€ VAT EXCLUDED
- Description
- Additional information
Description
Maximum Evaporation Stability and Thermal Glide Control for New Refrigerants
The Refrigerant Boys TE2 series thermostatic valve is designed to precisely control environmentally friendly transition refrigerant blends with thermal glide, such as R448A and R449A. The integration of a 1/4″ SAE external pressure equalization port allows the valve to detect the actual pressure at the evaporator outlet, eliminating the impact of internal pressure drops within the heat exchanger or liquid distributor. This mechanism prevents unstable oscillations (hunting), optimizes heat exchange in the coil, and protects the compressor from dangerous liquid slugging.
Strengths & Advantages:
External Equalization 1/4″ SAE Flare: Ensures responsive and balanced regulation even on complex evaporator batteries, multi-circuit evaporators, or systems equipped with a fan-type liquid distributor.
Specific Calibration for R448A and R449A: Optimized bulb charge to compensate for the glide typical of environmentally friendly HFO/HFC blends, both in positive preservation mode (MBP) and in low-temperature frozen food mode (LBP).
SAE Flare-Threaded Brass Body: Enables clean mechanical installation and quick interchangeability in the field without the use of welding torches, protecting the internal seals from thermal degradation.
Stainless Steel Sensing Element: Laser-welded diaphragm and housing to ensure long-lasting hermetic sealing against line vibrations and the high operating pressures typical of modern circuits.
High-Dynamic-Response Sensor Bulb: Instantly transmits thermal variations in the intake line to the diaphragm assembly to continuously modulate the flow cross-section.
Fine-Tuning Screw: Includes a calibration stem protected by a brass sealing cap for accurate adjustment of static superheat in the field.
Compatibility with POE Lubricants: Completely inert toward the synthetic polyester oils recommended for R448A and R449A refrigerants.
TECHNICAL SPECIFICATIONS
| Feature | Specifications |
| Brand / Line | Refrigerant Boys – TE2 Series |
| Product Type | Adjustable Mechanical Thermostatic Expansion Valve |
| Compatible Refrigerant Gases | R448A, R449A (low-GWP blends that replace R404A/R507) |
| Pressure Equalization | External via 1/4″ SAE Flare (male) connection |
| Main Connection Types | SAE Flare-type male threads (flare) |
| Valve Body Material | Forged brass with high mechanical strength |
| Sensing Element Material | Stainless steel with laser-welded joints |
| Capillary Tube and Bulb | Spiral capillary tube with a cylindrical stainless steel bulb |
| Lubricant Compatibility | Synthetic ester oils (POE) |
| Temperature Ranges | Medium and Low Boiling Points (MBP / LBP) |
| Areas of Application | Commercial refrigeration systems, frozen food display cases, cold storage rooms, plug-in systems, and retrofits of existing R404A systems |
Additional information
| Weight | 0,5 kg |
|---|
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