Products Description
| Product Name | Trane VAL09074 Oil Return Solenoid Valve |
| Model | VAL09074 |
| Applicable Industries | Construction and Commercial |
| Application | Refrigeration compressor |
| Packaging | Cardboard Box |
| MOQ | 1 Piece |
Trane VAL09074 Oil Return Solenoid Valve: Core Functions (Oil Return Control + High-Pressure Isolation — Dual Functionality in One Unit)
1. Compressor Oil Return Control (Primary Function)
Energizes and opens during unit operation to establish a clear flow path from the oil separator to the compressor oil return line, thereby ensuring adequate compressor lubrication and preventing burnout caused by oil starvation.
De-energizes and closes upon shutdown to cut off the oil return flow, preventing oil backflow and protecting the compressor against liquid slugging.
2. High-Pressure Discharge / Oil Circuit Control (Auxiliary Function)
In select models, this valve is utilized for high-pressure discharge bypass and oil circuit loading/unloading control, enabling precise regulation of system pressure and oil volume.
3. Safety Protection (High-Pressure Isolation)
Rated for a pressure resistance of 35 bar, it provides reliable isolation on the high-pressure side, preventing refrigerant or oil leakage and ensuring safety during maintenance operations.
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Technical parameter
Company Profile
Technical parameter
| Q1:For refrigeration industry, which brands are your products covering? | A1:We produce filter element replacements for brands like,Bitzer, Carrier, York, 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. |
Product Installation and Maintenance Guidelines
Installation (Brazed Connection, Leak Prevention)
Cleaning: Ensure interfaces are free of burrs and impurities, and that the copper tubing is fully seated.
Brazing: Use low-temperature brazing (silver brazing) to prevent heat damage to the coil and seals; remove the coil prior to brazing.
Orientation: Mount the valve body horizontally with the coil facing upward; avoid inverted installation. Ensure the flow direction aligns with the arrow marked on the valve body.
Pressure Testing: After installation, maintain a pressure of 25 bar for 24 hours; the unit passes if no leaks are detected.
Maintenance (Perform every 2 years / 10,000 hours, or in the event of a malfunction)
Inspection: Check for external cracks, burn marks on the coil, and leaks at the connections.
Cleaning: Flush the valve core and associated piping with refrigerant to remove oil sludge and impurities.
Component Replacement: Replace the original O-rings if leaks are detected. If the coil is burnt out or the valve core is worn, replace the entire valve assembly.
Testing: Upon energizing the valve, listen for an audible actuation sound (a crisp “click”). Measure the coil resistance (typically around 1 kΩ).
