Thermal piping and Adjusting valve series

Brief introduction of prefabricated direct-burial insulating pipe
Prefabricated direct-burial insulating pipe is applied to direct-burial layingunder the floor instead of aerial laying to improve appearance of a city and environmental quality. Compared with traditional form, it can save energy 40% because of insulating result; meanwhile it can shorten field construction period of laying of pipeline because it is prefabricated thermal insulation in the factory. Therefore, the product is suitable for conveyance of fluid medium of long distance and constant temperature. 　　Prefabricated insulating pipe is suitable for 50℃-140℃ non-corrosive medium, such as water and oil; prefabricated high-insulating pipe is used to convey 130℃-320℃ non-corrosive medium, such as gasoline and diesel oil. 　　The product has anticorrosion, waterproof and insulating property, can prevent extrusion and impact of soil and above-grounding load. Design life is 30 years.
1. Waterproof end face; 2. Working steel pipe; 3. Steel pipe; 4. Anticorrosion layer; 5. Polyurethane insulating temperature coating; 6. High temperature resistant thermal protective coating; (Remark: Glass wool insulation can achieve equal or better result.)
F series fire damper
F series fire damper is mainly used on blast pipe of ventilating air conditioning system with fireproofing requirements. It can be divided into fire damper, fire adjusting damper, smoke and fire damper and smoke damper etc. It has manual, automatic starting-up and shutting-off device. Fuse will automatically blow out to make valve shut off when temperature reaches 70℃ or 280℃, and can add electrical signal of valve shutting-off to shut off automatically according to system requirements, this is main features of fire damper. Fire damper adopts high quality carbon steel plate. Its surface sprays fireproofing paint film to prevent distortion after heating of steel plate and affect starting-up and shutting-off of valve.
Fire-proof tuyere product series