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R-71800 series three eccentric hard seal butterfly valve
The R-71800 series three eccentric hard seal butterfly valve adopts a shaft center double offset valve structure with an asymmetric design of the seal
Product details
Mark Valve Technology Wenzhou Co., LtdcompanyR-71800 series three eccentric hard seal butterfly valveimage:
The R-71800 series three eccentric hard seal butterfly valve adopts a shaft center double offset valve structure with an asymmetric design of the sealing surface, which ensures that the valve plate has no friction with the valve seat throughout the full stroke range of 0-90 °, eliminating the wear and friction caused by friction on the sealing surface of rotary control valves. Changed the need for squeezing and grinding to seal rotary control valves, and achieved compression sealing. The valve seat adopts a multi-level structure, utilizing a sealing surface composed of a combination of metal and special non-metallic materials to more effectively ensure no leakage. This series of butterfly valves has a long sealing life; Excellent sealing performance, while meeting the requirements of high temperature conditions, suitable for regulating and cutting off almost all gases and liquids in industrial process control.
◆Butterfly valve parameter description:
| Characteristics of valve internals: | Axial two eccentric structure, asymmetric sealing surface structure, multi-level sealing valve seat |
| Valve body type: | through-type |
| Upper valve cover type: | Standard integrated type |
| Temperature range: | -196 ℃~538 ℃ |
| Valve shaft sealing form: | Self sealing stuffing box structure, flexible graphite packing structure |
| Standard leakage level: | CLASS VI |
| Traffic characteristics: | Approximately equal percentage |
| Connection method with pipeline: | Clamp type flange type |
| Adjustable ratio: | 30:1 |
(ANSI CLASS 600 or PN6.4 only meets DN600 caliber and below)
Recommended by our company on July 16, 2019GYR71700 high-performance soft seal butterfly valve，andGYR71700 high-performance soft seal butterfly valveThe choice
Our company's main products include Fischer series control valves, Fischer series actuators, Fischer control valve accessories, control valves, on/off valves, O-type shut-off valves, shut-off valves, cage control valves, labyrinth control valves, single seat control valves, V-shaped control valves, high-temperature and high-pressure drain ball valves
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