Bronze U Shape Channel CNG LPG Fuel Filter Integrated With Solenoid Valve
Engineered for premium performance in autogas systems, the Bronze U Shape Channel CNG LPG Fuel Filter Integrated With Solenoid Valve serves as a high-reliability dual-action control module. Crafted from heavy-duty forged bronze, this unit seamlessly combines rapid electromechanical gas cut-off with precision fuel filtration in a single compact assembly.
Positioned between the fuel storage cylinder and the engine compartment, it guarantees immediate fuel supply management while shielding delicate downstream components—such as LPG reducers and injectors—from solid particulates and fluid-borne contaminants.
Product Specifications
| Fuel Type | LPG |
|---|---|
| Gas Channel | U shape |
| Material | Bronze |
| Working Voltage | DC 12V |
| Min. Working Voltage | DC 8V |
| Rated Working Pressure | ≤ 2.2 MPa |
| Flow Direction | Mono-direction |
| Working Ambient Temperature | -40~120 ℃ |
| Working Ambient Humidity | 5%~100% |
Technical Performance & Operational Advantages
1. Precision LPG Fuel Channel Actuation
The core mechanism is engineered to open and close the channel of the LPG fuel supply from the cylinder multivalve to the LPG reducer automatically. Operating at a nominal DC 12V with exceptional low-voltage tolerance down to DC 8V, the integrated solenoid responds instantly to system signals, effectively halting gas flow when switching fuel modes or shutting down the engine.
2. Advanced Physical Impurity Filtration
Unfiltered autogas often contains metal residues, pipe scale, and physical debris that degrade system performance over time. The high-density internal filtration core works continuously to filter out the physical impurities in LPG fuel, protecting sensitive metering equipment in full conversion kits from physical damage and premature wear.
3. Heavy-Duty Bronze Construction & U-Shape Flow Path
Featuring an optimized U-shape mono-directional flow path, the unit minimizes fluid turbulence while maintaining continuous pressure stability. Its durable bronze housing easily tolerates operating pressures up to 2.2 MPa and resists severe temperature extremes ranging from freezing -40 ℃ to high engine-bay heat at 120 ℃ under 100% ambient humidity.
Frequently Asked Questions (FAQ)
Q: What causes an autogas solenoid valve to hum or fail to switch on during sub-zero cold starts?
A: Extreme winter conditions (down to -40 ℃) can cause significant voltage drops in vehicle electrical systems. Standard solenoids often stall if battery output drops below normal thresholds. This integrated valve is specifically calibrated with a minimum working voltage of DC 8V to ensure consistent coil actuation and immediate gas supply even during severe cold-weather starts.
Q: What are the common signs that the internal LPG filter element requires cleaning or replacement?
A: Typical symptoms of a restricted filter include loss of engine acceleration, pressure drops across the fuel line, or unexpected system fall-backs to petrol mode under load. Inspecting and replacing the internal filter element during regular 10,000 km maintenance cycles prevents physical impurity blockages.
Q: Is this integrated bronze fuel filter reversible during installation?
A: No. The internal U-shape gas channel is engineered strictly for mono-direction flow. Installing the unit in reverse orientation compromises internal valve sealing and disrupts proper fuel filtration. Always orient the valve according to the directional arrow stamped on the bronze body.
Q: How well does the bronze housing handle under-hood condensation and severe weather conditions?
A: Exceptionally well. Forged bronze naturally withstands oxidation and moisture corrosion across 5% to 100% ambient humidity levels. Additionally, the solenoid coil housing is weather-sealed to protect electrical contacts against condensation and engine bay washdowns.
