the valve control almost every process and in the gas and liquid flow in the system. Although very common, choosing the correct valve can be very time consuming and sometimes confusing. First collect some basic information about the system performance requirements, began to select the valve. Know this will make it easier to find suitable valve. In this paper, five skills focuses on how to make the valve function match these requirements.

the valve size and type

to select the correct valve type. Each Industrial Valves need to perform one or more basic function: to cut off the flow, diversion, mixed flow, pressure, backflow, adjust the flow. Function determines the design of the standard valve type. The correct valve selection means that make the size of the valve matches the expected flow through the system. Material of

understand chemical compatibility requirements. materials must be compatible with flows through the gas or liquid. Plastic valve is usually better than metal valve resistance to corrosive or corrosive chemicals. Performance requirements

to determine the pressure and temperature requirements. Find out will install valve temperature and pressure range. Metal than plastic valves under higher temperature and pressure. Metal valve usually is usually the best choice of the pressurized gas. This is because they often is much stronger than plastic valve.

check valves have special requirements

to ensure that the new check valve can work as expected. Check the required response time, and open the valve opening pressure. Another consideration is normally open and normally closed. There are some basic check valve design, need to open toward the downstream pressure. These are usually referred to as a normally closed check valve. There are other design need positive back pressure to shut down. These are usually called normally open check. Appropriate choice between the two can improve the reliability of the check Industrial Valves. Usually, according to the valve during normal system operation is best to open more or close more to make a decision.

if installed vertically rather than level, certain types of check valve might not work properly. Flow direction ( Up and down) And the fluid density and can be installed in vertical check Industrial Valves design. Maintenance

don't forget to consider the ongoing maintenance. Any valve selection should pay attention to maintenance requirements. For the stability of the reliability and application of the valves are very important. Ball valve is a very good example. They can prevent the jam, block or malfunction. But they are not suitable for flow rate adjustment. Use them control flow may lead to leakage or premature failure.

the connecting way of valve will influence the convenience and speed of the repair or replacement. Each connection type ( Thread, flange, welding, clips, card sets, etc. ) Has its advantages and disadvantages.

the specific information is known, can be more relaxed, more determined to select the correct valve. Always can appear such as application requirements, operating conditions and chemical compatibility such complicated situation. From the basic requirements of valve will simplify and accelerate the selection of valve: the valve size and type, construction materials, performance requirements, the specific requirements of the check valve and maintenance plan.

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