Although offers a very different functions, but due to the level in building material, decoration and other technical specifications have many similarities, so often used at the same time gate, globe and check valves. But all certainly exist some differences between these types of valves. Gate valve, globe valve and check valve is the main difference between the application and operation of each valve, gate valve is commonly used in the pipe system. It is a universal repair valve is mainly used in switches, the throttling applications. Partially open gate valves will accelerate the corrosion caused by the goods of the pipe and will damage the seat in a short time. On the other hand, the cut-off valve is mainly used in the need for goods throttling. Simply by rotating the handwheel, the rate of goods flow through the valve can be adjusted to any of the required level. Unlike globe valve and gate valve, check valve doesn't run at all. They are designed to prevent the reverse flow of in line, make it become one of the most important components of any system. Gate valve gate valve is the most commonly used valve type. They can be fully open or fully closed, not used to adjust flow. Gate valves are provided with high temperature tolerance of high quality seal valve economic and efficient way. Globe valve valve almost exclusively used for throttling or flow control. In addition, the cut-off valve in one direction only. In order to help you remember this, each the side of the globe valve has a flow direction arrow. Check valve check valve work automatically, most is not controlled by the person or any external control; As a result, most do not have any valve handle or valve stem. They are dual port valve, means that they are in the body has two openings, one for the fluid to enter, leave, another for fluid and used in various applications. Even though they have all kinds of size and cost, but check valves are normally very small, simple or cheap. Most of the body of the check valve ( The shell) Made of plastic or metal. The check valve is an important concept of opening pressure, it is the minimum upstream pressure valve operation. Normally, the check valve is designed for and therefore can specify a particular opening pressure. Gate valve, globe valve and check Industrial Valves material of carbon steel valves are the two most common specifications A105 and A216 WCB. It is important to note the forging ( A105) And cast steel ( WCB) Available in different size range. Although cast steel gate valve, globe valve and check valve can meet the requirements of your application of almost any size, but forged steel gate valve, globe valve and check valve can only be used for 4 ', the most common is 2 'and the following. In the case of large diameter forging is very expensive, including casting more cost effective.
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