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13 Matters to Make Better Use of Ball Valve Advantages

Source:http://www.flowxgroup.comUpdate Time:2014-06-26Hits:
In the fluid piping system, valves are control components, its main function is to isolate equipment and piping system, regulating flow, preventing backflow, and discharging pressure. Because choosing the most suitable valve is very important for the pipeline system during ball valve maintenance period, therefore, to understand the characteristics and steps of the valve is also became more critical. So far, valve industry has been able to produce all kinds of gate valve, cut-off valve, throttle valve, plug valves, ball valves, electric valve, diaphragm valve, check valve, safety valve, pneumatic actuators, steam trap and emergency cut-off valve and so on 12 major categories, more than 3000 models, more than 4000 specifications of the products; Its maximum working pressure of 600 mpa, the maximum nominal diameter is 5350 mm, the highest working temperature is 1200 ℃, the lowest working temperature is 196 ℃. The suitable medium is water, steam, oil, natural gas, strong corrosive medium, (such as nitric acid, concentration of sulfuric acid, etc.), inflammable medium (such as stupid, vinyl, etc.), such as hydrogen sulfide, toxic media medium and with radioactive medium.

If you want to take use of the ball valve advantages, we need to know follow 13 matters:

B) We must first make sure the ball valve and the downstream piping have indeed unloaded the pressure, and then we can carry out dismantling operations.

C) When the sealing surface of the parts during decomposition and assembly, we must be careful to prevent injury especially non-metal parts, we need to use special tools to remove O-rings.

D) If you want to take use of the ball valve advantages, the flange bolts must be symmetrical

E) Unlike electric actuators, you must first find out on the ball valve, the downstream piping have indeed unloaded the pressure, and then you can carry out dismantling operations.

F) During decomposition and assembly again for the sealing surface of the parts, you must be careful to prevent injury especially non-metal parts, you need to use of special tools to remove O-rings.

G) If you want to take use of the ball valve advantages, when you assembling the flange bolts must be screwed symmetrical, gradually and evenly.

H) The cleaner should be incompatible with the rubber ball valve parts and other special work medium. If the working medium is gas, we can use gasoline to clean metal parts. For non-metallic parts we can clean it with clean water or alcohol.

I) For individual parts we can use dip way to clean. Unlike electric actuators, when cleaning we should remove all adhesion on the surface of grease, dirt, plastic product, dust, etc.

J) If you want to take use of the electric actuators advantages, after cleaning we should immediately remove them from the cleaning agent, they should not be soaked for a long time.

K) New parts also need to be cleaned before assembly.

L) We had better use grease lubrication. If the working medium is gas, we can use example 221 grease.

M) During assembly time there should not be allowed to have metal scraps, fiber, oil (except regulations used) dust and other impurities, foreign bodies, such as pollution, adhesion, to stay on the parts surface or into the lumen.

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