I. Basic Model Information
Original Part Number: WW9000360528
Alias: Vehicle manual brake valve, hand control valve, air-stop brake handleHandle valve, three-hole hand brake valve
· Compatible models: Sinotruk Howo A7, Sinotruk T7H tractorVehicles, some T5G models
Installation location: Below the cab workbench, handbrake control master
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II. Product Functional Principles
1. Pneumatic control trailer parking/unlockingbrake, handle valve exhaust, trailer air cutoff brakelock; release air intake, release trailer brake release
2. Independent control of the trailer’s airway, separation from the main driver’s brake circuit,
The trailer can be locked separately.
3. The three-air port structure, air intake, and exhaust have clear division of labor.
The air pressure control is stable.
Three. Structure and Material Parameters
·Valve body: Die-cast aluminum alloy valve body, pressure-resistant and corrosion-resistan
Control handle: Aging-resistant rubber + plastic handle, positioningClarify and prevent disconnection
· Air port configuration: 3 threaded air interfaces, none factory piping matchingRequires modification
· Net weight per piece: approximately 0.85 kg
· Pressure adaptation: Heavy truck standard air pressure operating range of 8-12 bar
Sealing structure: multi-layer rubber diaphragm, air leakage prevention, pressure relief cardDun
Four. Common Replacement Fault Scenarios
. The handle is leaking air, the valve body is depressurized, and the hanging hand cannot be locked.Car
2. Push-pull handle hair clip, The gearposition does notrebound. Brake switching failure
3. Vent thread Wear, Shell cracking, abnormal air pressure in the airway
4. Replacement for vehicle aging or accident sulfur damage
Five. Compelitive Product Replacement Reference
Same series common model: WG9000360522 (structural phaseClose, suitable for older models, not directly interchangeable, must place ordersCheck the image number.












