Long-term and reliable work requirements under the pipeline medium temperature, pressure, Xuchang plant; with electrical insulation properties of buried pipeline corrosion protection of electrical engineering required - new insulation and insulating flange joint structure (2) Three characteristics annex, there is sufficient strength and sealing performance; reasonable structure, Anyang plant accessories, assembly, disassembly, easy to replace parts. Fourth, the technical parameters - Temperature: ≤100 ℃, pressure range: Pn0.6MPa ~ Pn16MPa, product specifications: Dn50 ~ Dn1200 insulated joint is improved replacement for insulating flange in use according to the problems, accessory power plant, steel pipeline cathodic protection system is necessary and important pressure elements are widely used in cathodic protection system of steel pipes. Insulating joint reference foreign latest product structure, with a unique design to overcome the small insulating flange stiffness, easy to leak, it can not be buried, short life and other ills, annex Hebei plant to achieve the maintenance of buried features that make insulation joints life and supporting the same pipeline, monolithic insulating joints of the parts from the following components: the upper and lower tubes, sleeves, insulating parts, seals, insulation coating. In the joint on insulation, lower pipe butt end unit, sandwiched insulation and seals form a double seal structure having insulating properties. Shock absorber damping materials from this point of view is divided in two main hydraulic and aerated, there is a variable damping shock absorbers. Hydraulic suspension system is widely used in automobile hydraulic shock absorber. The principle is that when the frame and axle reciprocating piston relative movement of children at the time of the shock absorber of the cylinder reciprocating, oil inside the damper housing will be repeated from the cavity flow into another through some narrow pores a lumen. At this time, the friction and internal friction of the liquid and the liquid molecules will form the inner wall of the vibration damping force. Inflatable inflatable shock absorber since the 1960s to develop a new type of shock absorber. The structure is characterized in the lower cylinder is provided with a floating piston, floating a sealed chamber formed at one end of the piston and cylinder filled with high-pressure nitrogen species. With large cross-section O-ring on the floating piston that is completely separated from the oil and gas. Fitted with the speed of its movement and change the size of the working piston passage sectional area of ??the compression valve and done valves. Bo Yan Pipe (Figure) | Accessories Nanjing Power Plant | Accessories Power is provided by Yanshan County Bo Yan Pipe Co., Ltd. Yanshan County Bo Yan Pipe Co., Ltd. (www.czbygy.com) provide customers with "elbow, tee, size, head, head, flange, hanger, manhole, compensation, take over the seat" and other services The company has "Bo Rocks" and other brands. Focus on the elbow and other industries have a higher visibility in Cangzhou, Hebei. Welcomes inquiries, contact: Wenjiang.