I. Introduction II. Examples of Underground Piping Systems III. The Benefits of Underground Piping Insulation IV. Underground Pipe Insulation Materials V. Factors Affecting the Selection of Underground Piping Insulation Systems VI. Can Pipe Insulation be Buried? VII. What is Pre-Insulated Underground Pipe?
Underground Pipe System Types
There are several types of underground piping systems that are used in the chemical and petrochemical industries, including carbon steel for closed-drain systems, cooling water, and fire water; stainless steel for closed drains and chemical and corrosive service; cast iron for oil-water drains and stormwater; ductile iron for process water; concrete pipe for surface drainage; fiberglass-reinforced plastic for low-temperature, corrosive service and pressure systems; PVC for corrosive service; vitrified clay pipe for gravity drain systems; and glass pipe for floor drains in process plants, usually acid service.
Benefits of Insulating Underground Pipes
Insulating underground pipes provides several benefits, including safety, preservation, reduced energy loss and temperature regulation. Insulated underground pipes are protected from moisture and corrosive elements in the soil, increasing their operating lifespan and reducing the need for maintenance and repair.
Purposes of Underground Piping Insulation
Insulating underground pipes can help to prevent condensation, energy loss, vapor leaks, and temperature regulation. It can also help to reduce heat loss and prevent the freezing of the liquid passed through the pipe. Additionally, insulating underground pipes can help prevent direct contact with unlike metals and contact with concrete and other materials that can damage the parent pipe surface.
Underground Pipe Insulation Materials
The leading product for underground use is Armaflex Tuff Coat, which has high water vapor diffusion resistance and low thermal conductivity. Other examples of excellent insulating materials for underground piping systems include mineral powder insulation, perlite insulating concrete, gilsulate, and cellular glass insulation.
Factors Affecting Underground Piping Insulation System Selection
The design and selection of an ideal underground pipe insulation system depends on several factors, including the type of piping or pipeline system, operating temperature of the fluid, pipe OD and length, depth of pipe cover, soil type, bearing strength, electrical potential, location of water tab, road crossing and traffic load, and more.
Can Pipe Insulation Be Buried?
Yes, placing the insulated piping and pipeline systems underground is one of the most practical methods of installation. This eliminates the need for costly tunnels, speeding up the process of buried piping installation.
What is a Pre-Insulated Underground Pipe?
Pre-insulated underground piping systems provide a better solution by avoiding the challenges of installing insulation. These systems are strong and durable and can work over a variety of temperature ranges.
Advantages of Pre-Insulated Underground Pipe Systems
Pre-insulated underground pipe systems offer numerous advantages over traditional insulated piping, including improved safety, less energy loss, and increased efficiency. There is also less need for costly tunnels, as the pipe is already insulated, reducing installation time. Additionally, pre-insulated pipe systems can help to reduce maintenance and repair costs.