Non-rising Stem Gate Valve in Stainless Steel
The non-rising stem gate valve in stainless steel is made of stainless steel and hard alloy, with long service life, flexible graphite packing, reliable sealing, light and flexible operation. It can be used in urban water supply and drainage network, high-rise buildings, residential areas, oil, natural gas, power plants, environmental protection, mining, paper, fermentation and other industries. Instead of traditional cast iron valve, the valve has compact structure, reasonable design, good rigidity, smooth channel and small flow resistance coefficient.
- Product Introduction
The non-rising stem gate valve in stainless steel when the steering wheel and the valve stem are connected together relatively immovable, it is through the valve stem at a fixed point to drive the valve disc up and down the gate to complete the opening and closing. It is suitable for situations where space is limited because its height does not change when it is opened. The medium in the pipeline should be clean, and impurities will cause the valve stem and ram thread to get stuck, resulting in switch failure. In the selection, according to the use of places, uses to choose suitable for various requirements of the valve, to confirm the working conditions of the valve, applicable media, working pressure, medium temperature, to determine the nominal diameter of the pipeline and the connection with the pipeline.
The non-rising stem gate valve in stainless steel also need regular maintenance, especially long-term storage exposed to the outside of the dark rod gate valves, the surface needs to be kept clean, remove dirt, the gate valve should be placed in the indoor ventilated dry place, prohibit disorderly or directly placed in the open. Before installation, it is necessary to pay attention to some matters such as: carefully check the various standards or indicators of the valve, whether the diameter size meets the requirements of pipeline engineering, determine whether there are any defects caused by transportation during transportation, and remove the dirt on the valve, and be fully prepared before installation. During installation, the connection method can be directly installed on the pipe and installed according to the position required by use. Under normal circumstances, the gate valve can be installed in any position of the pipeline system to facilitate the repair and maintenance of the valve in the future. Pay attention to the tightness of the gate valve during installation to prevent leakage, which will affect the normal operation of the pipeline.
The non-rising stem gate valve in stainless steel is mainly used in outdoor places and places where there is more sand or dust to prevent dust and other debris from entering the valve stem to affect the operation, can be applied to water, steam, oil and weak acid chemicals and other conditions, the temperature must not exceed the specified range, before installation must be cleaned pipes and valve channels, to ensure that there is no debris can be installed. In the process of use, it is necessary to keep clean frequently, if there is a fault, it should be stopped immediately, and then start to use after finding out the cause and eliminating the fault; The transmission thread should be lubricated according to the specified period, the hand wheel of the valve is rotated clockwise to close, and the reverse is opened. It is strictly prohibited to rotate by other tools to avoid damage to the valve.
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