C1-42 SHF-35B-67-06 Four-Way Reversing Valve With Solenoid Coil for Bus HVAC Heat Pump

The C1-42 SHF-35B-67-06 four-way reversing valve with matched solenoid coil is a complete switching assembly exclusively for heat pump bus air conditioning systems. As the core mode conversion component of heat pump refrigeration circuit, it changes refrigerant flow direction via electromagnetic control, allowing the same AC unit to realize refrigeration cooling in summer and heating defrosting in winter.

When the solenoid coil is powered on/off, the internal sliding piston of four-way valve shifts to switch the pipeline circulation path of condenser and evaporator. In cooling mode, the condenser releases heat outside the bus; in heating mode, the evaporator absorbs heat from outside air to warm passenger cabin, greatly improving year-round riding comfort for buses operating in four-season regions.

Core Product Advantages

1. Integrated Brass Valve Body Anti-Leak Brazing Craft

   Whole valve body adopts thickened seamless brass tube with one-time vacuum brazing molding, no solder joint gaps. High pressure resistance and tight sealing, effectively avoid refrigerant leakage under long-term vehicle vibration.

2. Matched Original Solenoid Coil Complete Set

   Supporting coil fully matches SHF-35B-67-06 valve body electrical parameters, stable electromagnetic driving force, sensitive switching response, no stuck valve failure caused by mismatched coil power.

3. Stable Reversing Performance Under Wide Temperature Range

   Internal wear-resistant sliding piston structure maintains smooth mode switching at -20℃ ~ 60℃ working temperature, suitable for tropical high-temperature and cold northern winter heating operation.

4. Anti-Vibration Reinforced Pipeline Design

   Thickened copper connecting pipes with buffer structure, resist bump vibration from highway and urban road driving, prevent pipe cracking and refrigerant leakage during long-distance operation.

5. Plug-and-Play Direct Replacement Assembly

   All pipe diameter size, mounting hole position and coil wiring standard fully consistent with SHF-35B-67-06 original specifications. No pipeline cutting or coil re-matching required during maintenance, shorten vehicle overhaul downtime.

6. Compatible With R410A Eco Refrigerant

   Internal sealing materials adapt to R410A environmental refrigerant widely used on new energy heat pump buses, comply with global HVAC environmental protection standards.

Application Scenarios

• 7–12m heat pump type city bus, school shuttle and intercity tourist coach rooftop AC units

• Four-season bus fleet heat pump system heating/cooling switching valve failure replacement

• Bus repair shop complete four-way valve with coil spare parts centralized stocking

• New energy bus OEM factory heat pump HVAC supporting refrigeration accessories procurement

• Global aftermarket one-stop bus heat pump air conditioning spare parts supply

With 39 years of professional bus HVAC manufacturing experience, TCHAIN supplies full series of four-way reversing valves, expansion valves, condensers and compressor spare parts. We support bulk wholesale, technical dimension drawing provision and fast worldwide delivery to reduce fleet maintenance cost and spare parts procurement cycle.