1. Valve life
Butterfly may be a long-time work does not require regular maintenance, and sealing and reliable performance.
2. Pressure loss
Excessive pressure loss will cause related energy costs have increased, but the valve in the piping system is not the only factor resulting pressure drop, resulting in pressure loss of the other factors are:
* Pipe cross-sectional area
* Wall friction loss
* Changes in flow direction
The flow characteristics of butterfly valves is three times the cut-off valve is 75% of the same size valve.
3. Versatility
Butterfly valve can be realized in the fluid pipeline switching and mediation functions, as compared with the valve and the valve has good versatility. Its inner parts and flexible seat material a number of options, so that the field of butterfly valves in the chemical widely used.
4. The weight and volume of
Butterfly light weight, small in size. For example: 10 "butterfly valve weight and volume were 10" Gate Valve 1 / 9 and 1 / 6. So, butterfly valve easy to install and can save the cost of piping system.
5. Airtightness
And metal sealed gate valves and closing valves, compared with soft-sealed butterfly valve can be completely airtight.
6. Ease
Butterfly easy to operate, in the 90 ° rotation can be achieved within the framework of open and close function.
7. Price
The price is about the same specifications butterfly valve price of 35-40%, while butterfly valve installation costs relatively low.
8. Maintenance
Proper installation of the butterfly valve has a certain self-cleaning nature, difficult to produce because of dirt inside the pipe failure.