Products Description

| Product Name | Trane VAL05949 Safety Valve |
| Model | VAL05949 |
| Applicable Industries | Construction and Commercial |
| Application | Refrigeration compressor |
| Packaging | Cardboard Box |
| MOQ | 1 Piece |
Trane VAL05949 Safety Valve: Core Functions
1. High-Pressure Overpressure Protection (Core Function)
When system pressure is ≤ 2.07 MPa, the spring force seals the valve disc, ensuring zero leakage. When pressure reaches ≥ 2.07 MPa, the spring compresses and the valve disc opens fully to rapidly discharge refrigerant. When pressure drops back to ≤ 1.65 MPa, the valve automatically reseats and seals, preventing system rupture.
2. Fail-Safe Backup Protection for Electrical Controls
In the event of a complete failure of all electrical safety mechanisms—such as high-pressure switches, pressure sensors, and main control boards—this valve serves as a purely mechanical line of defense. It forcibly relieves pressure to protect high-pressure components (including the condenser, piping, and compressor), thereby averting major accidents.
3. System Pressure Stabilization and Suppression of Abnormal Pressure Spikes
When pressure surges occur due to liquid slugging, compressor stalling, compromised heat dissipation, or excessive refrigerant charging, the valve instantly actuates. It rapidly vents the high pressure to protect the system and minimize potential damage.
4. Full-Lift Design with High Discharge Capacity for Rapid Pressure Relief
Featuring a full-lift design, the valve disc opens completely upon actuation, maximizing the flow path. This allows for the rapid discharge of a large volume of pressure within a short timeframe, preventing sustained overpressure conditions and offering superior protection compared to partial-lift safety valves.
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Technical parameter

Company Profile

Factory Profile
| 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. |
Compatible Product Models (Precise Match)
1. Trane Screw Chillers: RTHD, RTHG, RTWD, and RTHB Series
2. Installation Location: Condenser High-Pressure Side, High-Pressure Receiver, Compressor Discharge End
3. Related Model: VAL05956 (SFA-22C225T9; Setpoint: 1.55 MPa)—Used for Low-Pressure Protection on the Evaporator Side
4. Replacement Scenarios: Failure to reseat after pressure relief activation, seal leakage, valve body corrosion, spring fatigue, broken lead seal, or failure to actuate under overpressure conditions; Direct replacement—100% compatibility in terms of interface, pressure rating, and functionality.
