Category Archives: Technical Knowledge

Performance Differences Between Electronic Expansion Valves and Thermal Expansion Valves

Now more and more refrigeration equipment using electronic expansion valve instead of the original thermal...

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Chiller Pipe, Air Conditioning Pipe Insulation Thickness Table

Chilled water piping(≥5℃) Flexible foam rubber pipe shell (mm) Glass wool pipe shell (mm) Pipe...

What are the Operating Precautions for Combustible Refrigerants R32 and R290 ?

The world is looking for an alternative to R22 refrigerant, but there has been little...

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Metal Finishing Types And How to Choose the Right Chiller Size for Them?

Metal finishing is a process that involves treating the surface of a metal to improve...

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Case Learn: What Damages The Poor Quality Refrigeration Oil Can Cause?

In the maintenance process, it is not uncommon to see compressor wear caused by the...

Refrigerants Temperature-Pressure Chart for R-22, R-410A, R-407C, R134A, R404A

Temperature Refrigerant °F °C R-22 R-410a R-407c R-134a R-404a -60 -51.1 11.9 0.9 16 21.6...

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Several Effective Ways to Prevent Extra Air Conditioner Condensation

Condensate refers to the water condensed from water vapor in the room due to the...

Chiller System Refrigerant Charging-Step by Step Guide

Why do we need to vacuum a chiller system? All the refrigeration systems are designed...

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How to Size Pipe in Chiller System? (Friction Loss Chart)

Chilled water systems connect all equipment using chilled water pipes. Without using sophisticated software, how...

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