Prefabricated buried insulation elbow

Prefabricated directly buried thermal insulation elbow is one of the thermal insulation pipe fittings. It is composed of high-density polyethylene outer sleeve, polyurethane foam insulation layer and inner working steel pipe. Insulated elbows are mainly used for turning insulated straight pipes and are generally used in conjunction with insulated pipelines. They are designed to compensate for the insulation effect during pipeline design, so that the elbow part can also have sufficient insulation performance. The standard elbow angles are 30 degrees, 45 degrees, 60 degrees, and 90 degrees

The average service life of on-site cast polyurethane rigid foam insulation structure can reach more than 30 years under normal use and maintenance conditions. All materials, through protective treatment, can be used under normal conditions during the service life of the structure, without causing damage due to dryness, moisture, electrochemical corrosion, insect, fungal or algal growth, or rodent damage. All materials of this product are compatible with each other and meet the quality requirements of relevant national standards.