Freeze dryer spare parts

1. Hot gas bypass valve

When the compressed air is cooled in the evaporator, a large amount of condensate is deposited. If the evaporation temperature of the refrigerant is too low to make the surface temperature of the copper tube of the evaporator lower than the freezing point of water under load conditions, the condensed water will freeze in the evaporator, which will block the air flow channel in severe cases and paralyze the air supply pipeline.

2. Thermal expansion valve or capillary tube (throttle valve)

The expansion valve (capillary tube) is the throttling mechanism of the refrigeration system. In the refrigeration dryer, the supply of refrigerant to the evaporator and its regulator are realized through a throttling mechanism.

3. Automatic drain valve

In the refrigerated dryer, the condensed water should be discharged out of the equipment in time to avoid the increase in air moisture content due to the delayed discharge of condensate.

4. Dry filter

In the operating refrigeration device, due to the presence of moisture, solid powder, dirt and other impurities in the refrigerant and refrigerating oil, when the situation is serious, the orifice of the throttling structure will be dirty and blocked.