Yutong 8JY1-4.0-8 Pressure Regulator Valve Natural Gas Bus
| Product Name | Natural Gas Bus Pressure Regulator/Gas Pressure Reducing Valve Assembly |
| Fuel Compatibility | Compressed Natural Gas (CNG) |
| Import Diameter | 20-25 MPa (High Pressure Cylinder) |
| Export Set Pressure | 0.8-1.2 MPa (Engine Air Supply Pressure) |
| Flow Range | ≥ 120 kg/h (suitable for 400kW engine) |
| Operating Temperature | -40℃ ~ +120℃ |
| Filter Accuracy | ≤ 10 μm (Built-in High Precision Filter Core) |
| Pressure Relief Set Value | 1.5-1.8 MPa (with safety valve protection) |
| Thread Specification | Import M22×1.5 / Export M27×1.5 (Typical heavy truck/bus standard) |
| Turbo Shell Material | Aluminum alloy forging (high strength, corrosion resistance, lightweight) |
| Diaphragm Material | Fluororubber/Polyurethane composite material (resistant to low temperature, aging resistance, excellent sealing property) |
| Compatible Emission Standard | China V standard, VI standard (GB 17691/GB 3847) |
| Certification | ECE R110 / ISO 15500 / GB 19244 |
Engine Part No.
Yuchai YC6NGWeichai WP4.1NGWeichai WP5NGWeichai WP7NGWeichai WP10NGWeichai WP12NGWeichai WP13NG
Fitment Vehicles
Yutong Natural Gas BusYutong 6-18m BusYutong Intercity BusNew Energy Commercial Vehicle
Fuel System - Industrial Encyclopedia
High-quality Yutong 8JY1-4.0-8 pressure regulator valve specifically designed for Weichai WP7 natural gas bus engines. This critical fuel system component ensures optimal gas pressure regulation for efficient engine performance and reliability. Perfect fit for Yutong buses equipped with natural gas propulsion systems.