Reducer is still widely used in our life, but many people don't know it very well, don't know the type of forged pipe fittings, and don't know its use. These need to be understood before use.
Type of reducer:
1. According to its radius of curvature: it can be divided into long radius elbow flange and short radius elbow. Long radius elbow means that its radius of curvature is equal to 1.5 times the outer diameter of the pipe, i.e. r = short radius elbow means that its radius of curvature is equal to the outer diameter of the pipe, i.e. r =.
2. Divided by manufacturing methods, it can be divided into pushing, pressing, forging, casting, etc.
3. Divided by manufacturing standards, it can be divided into national standard, electric standard, water standard, American Standard, German standard, Japanese standard, Russian standard, etc.
4. Divided by material, carbon steel, cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, argon, etc.
Reducer is a kind of socket pipe fitting. If the selected diameter specification of reducer is inconsistent with the inner diameter of process pipe, the fastener shall be reduced or expanded accordingly. If the pipe is reduced, whether the pressure loss caused by this will affect the process flow shall be considered. In order to prevent the installation of reducer from affecting the distribution of velocity field and causing pressure loss, so as to reduce the measurement accuracy of electromagnetic flowmeter, the required central cone angle α No more than 15 °, the smaller the better. There are two types: concentric and eccentric. Concentric reducers are generally used on vertical pipes; Eccentric reducers are used for horizontal pipes, and attention shall be paid to indicating whether the top is flat or the bottom is flat.
There are mainly the following places:
1. When the flow of fluid in the pipeline changes, such as increase or decrease, and the flow rate requirements change little, reducer shall be used.
2. Pump inlet to prevent cavitation.
3. Reducers shall also be used at the joints with instruments, such as flow meters and regulating valves, in order to cooperate with the joints of instruments.
