Product features: insulation jacket DC type valve, globe valve insulation jacket, DC type valve DC type heat preservation valve is based on the Y type globe valve between the two flange welding jacket, side and bottom valve is provided with a heat insulating jacket two connecting ports, for injecting steam or other heat insulation medium, medium to ensure that the valve can work normally. The heat preservation jacket of the direct current insulation stop valve is welded between the two flanges of the valve, which is especially suitable for the pipelines of chemical industry and fertilizer industry, and the inner steam of the jacket can prevent the crystallization of the medium. DC heat preservation globe valve is widely used in petroleum, chemical, metallurgical, pharmaceutical and other systems to transport high viscosity medium at room temperature. DC insulation stop valve is based on the Y type globe valve two flange between the welding jacket, the valve side, the bottom is equipped with a thermal jacket of the two connections, used to inject steam or other insulation, cold medium, to ensure that the medium in the valve can work properly. It has good insulation and cold protection characteristics, and can effectively reduce the heat loss of medium in pipeline. The heat preservation jacket globe valve adopts the integral jacket structure design, which can be more uniform insulation and cold protection, and the jacket is welded by carbon steel pipe, which is more stable than the casting. The jacket and the outer side of the valve are welded with the jacket nozzle, allowing the maximum pressure of steam or cold water to be 1MPa. The insulation jacket of the BJ45W DC jacketed insulation stop valve is welded between the two flanges of the valve, and the two sides of the valve side and the bottom are provided with the thermal insulation jacket. DC insulation stop valve is especially suitable for the pipeline of chemical industry and chemical fertilizer industry. The inner steam of the jacket can prevent the crystallization of medium. Insulating stop valve is widely used in petroleum, chemical, metallurgical, pharmaceutical and other systems to transport high viscosity medium at room temperature. The design and manufacture of the insulation stop valve is based on GB12234-89GB12234-89; the length of the structure is GB12221-89GB12221-89; the size of the insulation stop valve flange is JB/T79-94JB/779-94; the valve inspection and test are based on GB13927. BJ45H, BJ45Y, BJ45W type PN16~PN40 heat insulation jacketed DC stop valve is mainly used in petroleum, chemical, metallurgical, pharmaceutical and other systems, to transport high viscosity medium at room temperature. Structure features of DC insulation stop valve:
2, sealing surface hardening treatment to wear resistance.
3, valve neck bushing material has a low coefficient of friction, greatly reducing the torque and axial wear, and eliminate surface scratches.
4, the valve cavity device is composed of two parts, is conducive to rapid disassembly and repair in place.
5, the structure of the inclined shaft and the shape of the optimum flow channel, the reduction of the flow direction and the reduction of the depressurization.
6, the overall surface hardening of the valve seat: provide a true closure and long service life of the valve seat.
7, thread cover: to prevent stuck and easy to install and disassemble.
8, valve shaft filling device: the use of carbon fiber cracks in the ring of flexible graphite as filler, for the best leak proof and durable.
9, reciprocating test 10000 times without fault, reliable performance, to prevent external leakage.
Design and manufacture: BS1873BS5160GB12233
Flange size: ANSIB16.5JB/T79GB9113
Pressure and temperature: ANSIB16.34
Structure length: ANSIB16.10BS1873GB12221
Butt weld size: ANSIB16.25
Test and experiment: BS6755GB/T13927