Products Description
| Product Name | Trane VAL12001 Stepper-type Electronic Expansion Valve |
| Model | VAL12001 |
| Applicable Industries | Construction and Commercial |
| Application | Refrigeration compressor |
| Packaging | Cardboard Box |
| MOQ | 1 Piece |
Core Product Functions:
1. Intelligent Stepless Refrigerant Flow Regulation (Core Function)
Calculates superheat in real-time based on evaporation pressure and suction temperature, dynamically adjusting the valve opening to match the unit’s instantaneous thermal load; serves as a critical control component in the refrigeration cycles of screw and air-cooled units.
2. Multiple Safety Protection Logics to Prevent Compressor Liquid Hammer
Automatically reduces valve opening and limits refrigerant supply during low-load or low-temperature conditions; fully closes the valve upon shutdown to prevent a massive backflow of liquid refrigerant from the condenser to the evaporator, thereby avoiding liquid hammer damage to the rotor during startup.
3. Bidirectional Adaptation for Heating and Cooling Heat Pumps; Stable Year-Round Operation
Automatically increases valve opening to boost circulation volume when refrigerant viscosity is high during winter heating; automatically limits flow during high-temperature, full-load summer operation to control high-side condensing pressure, reducing the frequency of high-pressure unloading and enhancing cooling output.
4. High-Precision Linear Regulation Maximizing Heat Exchange Efficiency
Precisely controls flow and superheat across the entire load range, ensuring full utilization of the evaporator’s heat exchange surface; significantly improves part-load energy efficiency compared to units using thermostatic expansion valves.
5. Fault Self-Diagnosis and Valve Position Memory
Automatically restores the valve opening position from prior to shutdown after a power cycle; the main controller can read valve step counts, triggering an electronic expansion valve fault alarm if the valve core jams or the wiring harness breaks, facilitating convenient troubleshooting and maintenance.
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Technical parameter
| Q1:For refrigeration industry, which brands are your products covering? | A1:We produce filter element replacements for brands like,Bitzer, Carrier, Yk, McQuay, Trane, etc… |
| Q2:Does the price include freight? | A2:The quotation is usually the factory price. We can recommend the most economical logistics plan and calculate the freight according to your destination and quantity. |
| Q3:How to ensure product quality? | A3:We have a strict quality control process, and we will carry out multiple inspections before the products leave the factory to ensure that they meet the standards. |
| Q4:Why choose us? | A4:Product reliability: We are a professional manufacturer . can offer high-quality products at the most competitive prices. Technical support: We provide technical assistance. Industry experience: We have over 10 years of experience in the refrigeration equipment service field. After-sales service: We offer professional after-sales service. Team collaboration: We have a professional team that can provide you with prompt services and delivery schedules. |
Internal Structural Materials and Components
Hot-forged brass Y-shaped valve body (pressure-bearing main body): One-piece construction, rated for a system operating pressure of 600 PSI;
Precision stainless steel tapered throttling core (flow regulation core): Driven by a stepper motor to adjust the flow cross-section and control refrigerant flow;
Bi-directional PTFE valve seat seal: Encapsulates the valve core, providing bi-directional pressure resistance and long-term zero-leakage performance;
Sealed 4-phase, 4-wire stepper motor actuator: Receives pulse signals from the main controller to precisely drive the valve core’s travel;
FKM (Fluoroelastomer) auxiliary O-ring: Prevents trace refrigerant leakage at the interface between the valve body and the motor;
Yellow shielded 4-core cable with M12 waterproof connector: Transmits stepper drive signals; resistant to oil contamination and detachment.
