Triple eccentric butterfly valve with pneuamtic actuator
Short Description:
The triple-eccentric hard seal butterfly valve adopts the design of triple-eccentric structure. There is no friction between the disc and seat within the full travel range of disc opening and closing, so that the leakage caused due to seat abrasion during seat opening and closing in rotary control valves is eliminated. The seat adopts the multi-level structure and uses the combination of metal and nonmetal materials to form the sealing face. It can work excellently under the service conditions of high and low temperatures. The 70D00 Series butterfly valve is featured by long service life and excellent sealing performance. It is suitable for control and shut-off applications of almost all gases and liquids in the industrial process control.
Parameters of control valves：
| Trim features： | triple-eccentric structure multi-level sealing seat hard seal |
|---|---|
| Body type： | straight-through type |
| Bonnet type： | standard integral type |
| Flow characteristic： | approximately equal percentage |
| Size： | DN50-1000(2”-40”) |
| Pressure class： | PN1.6、4.0、6.3Mpa（ANSI 150、300、600LB） |
| Leakage class： | ASME B16.104 Ⅵ（standard type seat） |
| Pipe connection type： | wafer type , flange type |
| Applicable temperature range： | -30C° ～ 550C° |
| Actuator type： | pneumatic piston actuator electric actuator worm gear hand operating |
