C1-13 Thermostatic Expansion Valve E1534QEX22P 3/8 OR Dual Tail 1.5T for Mini Bus AC

The C1-13 E1534QEX22P thermostatic expansion valve is a small-displacement throttling component tailored for 7-meter mini bus, campus shuttle and light tourist coach air conditioning systems. As the flow control core of small-capacity refrigeration circuits, it undertakes refrigerant pressure reduction and flow adjustment, guaranteeing stable cooling performance for compact bus HVAC units.

This expansion valve adopts unique 3/8 OR port and dual temperature sensing tail design, which can accurately capture the superheat state of refrigerant at the evaporator outlet. It automatically adjusts the valve opening to match the 1.5T cooling load of mini bus air conditioners, avoiding evaporator frosting and liquid backflow damage to small displacement compressors.

Core Product Advantages

1. Dual Tail High-Sensitivity Temperature Sensing Design

   Dual capillary temperature sensing package expands the temperature sensing range, responds faster to cabin load changes, maintains stable refrigerant supply under frequent start-stop of small bus air conditioners, and eliminates uneven cooling inside the mini carriage.

2. 3/8 Standard OR Port Sealing Structure

   Universal 3/8 OR threaded interface matches the mainstream pipeline layout of 7m mini bus AC units, with excellent sealing performance to resist refrigerant leakage caused by vehicle vibration and low system working pressure.

3. Compact Miniature Brass Valve Body

   Forged integrated brass valve body, small overall volume, perfectly fits the narrow internal installation space of rooftop mini bus air conditioners, without extra modification during assembly.

4. Stable 1.5T Small-Capacity Flow Regulation

   Precision-machined internal valve core is calibrated for 1.5-ton cooling capacity, suitable for low-power mini bus refrigeration systems, will not cause excessive refrigerant supply or insufficient cooling output.

5. Strong Anti-Vibration & Long Service Life

   Reinforced fixing structure for capillary tubes and sensing bulbs, can adapt to long-term bumpy driving of shuttle buses on urban roads. Internal wear-resistant sealing parts support continuous year-round operation.

6. Plug-and-Play Original Replacement Size

   All port size, capillary length and mounting dimensions fully conform to E1534QEX22P standard parameters. No pipeline cutting or bending required during maintenance, greatly shorten vehicle overhaul downtime.

Application Scenarios

• 7m mini city bus, campus shuttle bus rooftop air conditioning units

• Short-distance light tourist coach small capacity AC refrigeration system overhaul

• Repair shops special spare parts stocking for mini bus HVAC

• Small bus OEM factory matching refrigeration throttling components

• Global aftermarket one-stop mini bus air conditioner spare parts supply

With 39 years of professional bus HVAC manufacturing experience, TCHAIN supplies full series of expansion valves for mini, medium and large buses including C1-13 E1534QEX22P dual tail model. We support bulk wholesale, technical parameter drawing provision and fast global delivery to reduce fleet maintenance and spare parts procurement costs.