Chemical & Pharmaceutical Applications
Chemical & pharmaceutical process plants are highly engineered production environments requiring tightly monitored conditions. Refrigeration works by transporting heat from one set of heat transfer coils to another. The heat transfer coils are connected by pipework along which flows a liquid or gaseous refrigerant. Mechanical processes acting upon this refrigerant cause it to be at temperatures well below the ambient and as a result the fluid is able to carry heat away from the refrigeration unit.
Since the pipework is operating at temperatures well below freezing water can condense on the pipe surface and instantly freeze. Without correctly applied insulation refrigeration pipework quickly becomes encased in thick ice. Ice formation rapidly accelerates pipe corrosion and increases the heat load on the chiller making the system far less efficient.
Condensation and the resultant ice formation must be prevented along the entire length of pipework, including all valves and fittings. In order to achieve this the insulation must demonstrate the following attributes: