J41W insulation jacket cut-off valve, also known as valves, piping systems are mainly used in chemical, petroleum, pharmaceutical, metallurgical and other industries, the main role is to transport status will be solidified at room temperature, and crystallization of the media. BJ41W thermal shutoff valve between two flanges welding metal jacket, on the side and bottom of the shut-off valve is provided jacket interface for injecting steam or other insulation, cold media, to ensure that the media be able to work within the valve. Flange insulation shutoff valve shut-off valve to be compared to ordinary freshman to two specifications in. Thermal cut-off valve opening and closing pieces are shaped valve plug, leaving it flat or cone seal, valve along the center line of the fluid linear motion. Stem form of exercise with lifting rod (stem down, the hand wheel does not lift), but also lift rotating rod (hand wheel and stem rotation movements, nut located in the body). Bellows globe valves is only applicable to fully open and fully closed valve closing price BJ41W insulation does not allow for adjustment and throttle. Thermal cut-off valves are forced closed valve when the valve is closed so that the insulation valve, pressure must be applied to the valve to force the sealing surface does not leak. When the medium from the bottom of the six valve into the valve, the operating force required to overcome the resistance, the friction force and the thrust stem and packing by the pressure generated by the medium, close the valve opening force larger than the force of the valve, so that the valve The diameter of the rod to be large, otherwise the stem top corner of failures occur. In recent years, from the self-sealing valve with Weifang valve, globe valve to change the medium flow into the valve chamber from above the valve, then under media pressure, the valve off a small force, and force open the valve, the valve The diameter of the rod can be correspondingly reduced. While holding shut-off valve, under the effect of the medium, this form of valve is also more closely. China's valve "three to" has been specified, as the flow valve, should be top-down. Shandong thermal cut-off valve | valve manufacturers Everbright | insulation valve shut-off valve from Shandong, China Everbright Limited. Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) Shandong Weifang, ball leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Everbright valve leadership with the staff warmly welcome all inquiries negotiations to create a better future for China Everbright valve.