What are the application scenarios for forged brass truck valves?

Release Date:

2025-12-28

Forged brass truck valves, with their high strength, corrosion resistance, vibration resistance, and compatibility with truck fluid systems, are primarily used in critical fluid-control applications for heavy-duty trucks, commercial vans, trailers, and construction vehicles (such as dump trucks and concrete mixers), covering powertrain systems, safety systems, comfort systems, and auxiliary systems. Specific application scenarios are as follows:

Core Power System: Ensuring Stable Engine Operation

1. Engine Cooling System
Application areas: coolant circulation lines, radiator inlet and outlet ports, and thermostat bypass lines.
Core functions: regulate coolant flow to maintain optimal engine operating temperature (preventing overheating or overcooling); and enable coolant diversion (e.g., switching between the engine block and the radiator).
Compatible media: antifreeze, water–ethylene glycol mixture, and pure water.
Material compatibility advantages: Brass is resistant to coolant corrosion and boasts excellent thermal conductivity, enabling rapid heat dissipation; the forging process eliminates internal porosity, thereby preventing leaks in high-pressure cooling systems.
Typical vehicle type / operating conditions: long-haul heavy-duty trucks and diesel-powered commercial vehicles, suitable for extreme climates ranging from -40°C to +121°C.

2. Fuel System
Application locations: fuel tank outlet, fuel filter inlet and outlet, and the front-end piping of the high-pressure oil pump.
Core functions: fuel delivery/ shut-off, emergency shutdown, and prevention of fuel backflow, ensuring stable fuel supply.
Compatible media: diesel, gasoline, biodiesel
Material compatibility advantages: Brass is resistant to fuel corrosion and non-magnetic, ensuring no impact on the accuracy of the fuel sensor; the forged valve body offers high strength and can withstand pressure fluctuations in the fuel system.
Safety Requirements: Complies with the SAE J1273 fuel system valve standard, with a leakage rating of Class VI (zero leakage).

Safety System: Ensuring Driving and Operational Safety

1. Hydraulic Brake System
Application locations: brake master cylinder to wheel cylinder connection lines, ABS system branch lines, and the outlet of the brake fluid reservoir.
Core functions: control brake fluid pressure and flow to achieve precise braking; rapidly shut off or relieve pressure in emergency situations.
Compatible brake fluid: DOT 3/DOT 4 (glycol-based)
Material compatibility advantages: Brass is resistant to chemical corrosion by brake fluid, and its forged construction provides excellent resistance to vibration-induced fatigue (preventing valve body cracking caused by truck vibrations).
Key requirements: operating pressure ≥ 17.2 bar (250 psi), fast response, and no hysteresis.

2. Parking Brake System (Auxiliary Brake)
Application areas: hydraulic lines for the parking brake and connection ports of the pneumatic-hydraulic conversion valve.
Core functions: Lock the parking brake pressure to prevent vehicle rollback; ensure smooth pressure release during unlocking.
Applicable scenarios: ramp parking, long-distance parking, and heavy-load operating conditions for heavy-duty trucks.

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What are the application scenarios for forged brass truck valves?

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