Dongfeng GX truck parts warm wind Water valve assembly P067606150

Designed to accurately adjust the water flow into the Dongfeng GX’s core, this valve assembly enables precise cabin temperature control. It features a rotary-type brass valve core with 180° adjustable opening, allowing stepless regulation of hot water flow (from 0% to 100%) based on the driver’s temperature settings. The valve core is linked to a precision-machined actuator rod that responds to the truck’s heating control knob, ensuring immediate flow adjustment with no lag—critical for maintaining comfortable cabin temperatures in extreme weather (e.g., -30°C winters). Testing shows the valve can switch from fully closed to fully open in 0.8 seconds, and maintains stable flow rates even under engine coolant pressure fluctuations (150–300 kPa), preventing sudden temperature spikes or drops in the cabin

Built to withstand the harsh conditions of truck heating systems (high-temperature coolant, pressure cycles, corrosion), the assembly uses high-performance materials. The valve body is made of die-cast aluminum alloy (ADC12 grade) with T6 heat treatment, offering excellent thermal conductivity and corrosion resistance—withstanding long-term exposure to engine coolant (ethylene glycol-based) without rust or deformation. The valve core is crafted from high-purity brass (H62 grade) with a chrome-plated surface, reducing friction and preventing scale buildup (a common cause of valve jamming). The sealing components use high-temperature-resistant EPDM rubber (withstands up to 150°C) that maintains elasticity over 50,000 opening/closing cycles—far exceeding the lifespan of standard rubber seals. This material combination ensures the assembly operates reliably for over 120,000 km

Leakage prevention is critical for heating system efficiency, so this assembly incorporates a multi-layer sealing structure. The valve body’s inlet/outlet ports feature integrated O-ring grooves that hold EPDM rubber O-rings, creating a tight seal between the valve and heating hoses—preventing coolant leakage even under high pressure (up to 400 kPa). The valve core is sealed with a double-lip PTFE (Teflon) seal that slides smoothly against the valve body, eliminating internal leakage between the core and body. Additionally, the actuator rod interface uses a flexible rubber boot that blocks dust, dirt, and moisture from entering the valve interior, protecting the core and actuator mechanism from contamination-related damage. Rigorous pressure testing confirms the assembly has zero leakage even after 1,000 hours of cyclic pressure exposure

Engineered for convenient replacement in truck repair shops, this assembly simplifies installation with user-friendly features. It comes with pre-installed O-rings, mounting bolts, and a clear instruction sheet—installation takes 20–30 minutes using standard hand tools (no specialized equipment required). The valve’s compact design fits into the Dongfeng GX’s limited under-dash space without interfering with adjacent components (e.g., wiring harnesses, air ducts). Safety-wise, the assembly complies with international automotive standards (ISO 10882-1 for coolant hoses and valves), ensuring it meets Dongfeng GX’s safety requirements for heating systems. It also includes a pressure relief function that automatically releases excess pressure if the valve is fully closed and coolant temperature rises abnormally, protecting the heating core from damage. Backed by a 24-month warranty against manufacturing defects (e.g., leakage, valve jamming, seal failure), this assembly provides reliable performance for Dongfeng GX truck owners