The high-temperature prefabricated direct-buried thermal insulation pipe is a direct-buried prefabricated thermal insulation pipe with good thermal insulation performance, safety and reliability, and low engineering cost. It effectively solves the problems of thermal insulation, sliding lubrication and waterproofing of exposed pipe ends for prefabricated direct-buried thermal insulation pipes for 130°C-600°C high-temperature heat transfer in urban central heating.
Read moreThe basic principle of forming adjustment of welded pipe
Read moreThe drainpipe generally adopts spiral steel pipe (SSAW pipe), and the welding method of the spiral steel pipe is submerged arc welding. Since the welded steel pipe is spiral, the received liquid pressure will be distributed on each side of the steel pipe to increase the strength of the spiral steel pipe.
Read moreThe base material of 3pe anti-corrosion steel pipe includes seamless steel pipe, spiral steel pipe and straight seam steel pipe. The three-layer polyethylene (3PE) anti-corrosion coating has been widely used in the oil pipeline industry due to its good corrosion resistance, water vapor resistance and mechanical properties.
Read moreThe bent pipe is bent by a complete set of bending molds, which are divided into two processes: cold simmering and hot pushing. No matter what kind of machinery and equipment, most of them use elbows, which are mainly used for oil, gas, liquid, etc., and occupy a very important position in aircraft and their engines.
Read morePlastic-lined steel pipes are based on galvanized seamless steel pipes and welded steel pipes. After removing the welding ribs on the inner wall, they are lined with food-grade polyethylene (PE) pipes with the same diameter as the galvanized pipe, and finally pressurized and heated for a certain period of time. It is an upgraded product of the traditional galvanized pipe.
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