China’s Temperature Custom Capillary Adjustable Thermostat

The design of the single-stage capillary thermostat is based on the fact that when the temperature of the controlled object changes, the liquid in the temperature sensing part (as shown in Figure 5) will change in volume according to the principle of thermal expansion and contraction. When the temperature rises, the liquid expands and the connected diaphragm box also expands; conversely, when the temperature drops, the diaphragm box shrinks. This change controls the on-off action of the switch through the lever action, thereby achieving constant temperature control. The YAXUN Capillary Thermostat is a single stage switch that opens on temperature rise between 50°F to 90°F. It can replace the German EGO single-stage capillary thermostat.

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One of the advantages of the single-stage capillary thermostat is its high temperature control accuracy, which can stably and reliably maintain the set temperature and has a small on-off temperature difference. In addition, it has a wide adjustment range to adapt to different temperature control needs. The large overload current also makes it perform well when handling high-power electrical appliances and electric heating equipment.

This type of thermostat is widely used in the home appliance industry, electric heating equipment and refrigeration industry, and is a key component to ensure the normal operation and temperature control of the equipment. Whether it is household appliances or industrial equipment, single-stage capillary thermostats play an important role in maintaining temperature stability.

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Single Stage (SPDT)
15 Amps @ 120/240VAC
Bulb Dimensions: 5 19/32″ Length, 1/4″ Outer Diameter
32″ Capillary Length
Adjustable from 50°F to 90°F
Set at 90°F at the factory
250°F Ambient Compensation
Maximum Bulb Temperature of 155°F
UL & cUL Approved
Made in China

The YAXUN 358 Capillary Thermostats are our most compact line of remote sensing thermostats available in Bulb and Capillary Tube or Probe styles. The 358W capillary thermostat is a bulb and capillary style. Many variations are available in each style to include fixed or adjustable temperatures, auto or manual resets, Copper/Plated Copper or Stainless steel construction and all variations have multiple mounting options.

YAXUN takes pride in quality control and reliable operation of our products. Every switch is individually 100% tested before it leaves the plant. Our capillary thermostats are UL & cUL approved. YAXUN capillary thermostats are ambient compensated, which allows for automatic switch adjustment with ambient operating temperature changes.

Capillary thermostat switches built by YAXUN can also be built to customer specifications. This ensures you get the exact control you want without paying for features you don’t need.