Products Description
| Product Name | Yk 025-47116-003 Stepper-type Electronic Expansion Valve |
| Model | 025-47116-003 |
| Applicable Industries | Construction and Commercial |
| Application | Refrigeration compressor |
| Packaging | Cardboard Box |
| MOQ | 1 Piece |
Internal structural components and materials:
1. Hot-forged brass tee valve body (main pressure-bearing component): Integrally formed, rated for a refrigerant working pressure of 600 PSI;
2. Precision stainless steel tapered throttling valve core (flow regulation core): Driven by a stepper motor to adjust the flow cross-section and control refrigerant flow;
3. Bi-directional PTFE sealing ring: Encapsulates the valve core, ensuring zero leakage under bi-directional pressure;
4. Sealed 4-phase stepper motor actuator: Receives pulse signals from the main controller to precisely drive the valve core’s travel;
5. FKM (Fluoroelastomer) auxiliary O-ring: Prevents trace refrigerant leakage at the interface between the valve body and the motor.
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Technical parameter
Factory Profile
| 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. |
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 actual load; serves as a critical control component in the refrigeration cycle of screw and air-cooled scroll units.
2. Multiple Safety Protection Logic to Prevent 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 compressor damage caused by liquid hammer during startup.
3. Bidirectional Adaptation for Heating and Cooling Heat Pumps; Stable Year-Round Operation
Automatically increases valve opening to boost refrigerant circulation when low-pressure 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 capacity.
4. High-Precision Linear Regulation; Improved Overall Unit Energy Efficiency
Precisely controls flow and superheat across the entire load range to maximize evaporator heat exchange efficiency, resulting in an 8%–15% improvement in overall energy efficiency compared to units using thermostatic expansion valves.
5. Fault Self-Diagnosis and Valve Position Memory
Automatically restores the valve opening position from before shutdown upon power-up; the main controller can read valve step values, and the unit triggers an electronic expansion
valve fault alarm in the event of valve core jamming or wiring harness disconnection, facilitating maintenance and troubleshooting.
