Polyurethane insulated bent pipe

Polyurethane insulation elbow is one of the insulation pipe fittings. It is composed of high-density polyethylene outer sleeve, polyurethane foam insulation layer and inner working steel pipe.

Insulated bent pipes 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 bent pipe can also have sufficient insulation performance. The standard bending angles are 30 degrees, 45 degrees, 60 degrees, and 90 degrees.

Polyurethane insulated bend pipes have good insulation performance, strong waterproof and corrosion resistance, can be directly buried underground or in water, easy and fast construction, low comprehensive cost, long service life, easy maintenance and low cost. Widely used in liquid and gas transportation pipelines, chemical pipeline insulation engineering, petroleum, chemical, centralized heating networks, central air conditioning ventilation pipelines, municipal engineering, etc.

Polyurethane insulated bent pipes mainly comply with the standards CJ/T200-2004 "Technical Conditions for Prefabricated Directly Buried Steam Insulated Pipes for Urban Heating", CJ/T104-2005 "Technical Regulations for Directly Buried Steam Pipes for Urban Heating", SY/T114-2000, SY/T115-2001 "High Density Polyethylene Polyurethane Foam Insulated Steel Pipes". Main parameters include heat resistance, cold resistance, bonding strength, compressive strength, and water absorption rate. The materials mainly include stainless steel, carbon steel, and alloy steel. This product not only has advanced technology and practical performance that traditional trench and overhead pipeline laying cannot compare with, but also has significant social and economic benefits. It is also a powerful measure for heating and energy-saving polyurethane insulated elbows.