Valve rod sealing structure of eccentric butterfly valve
The invention discloses a valve rod sealing structure of an eccentric butterfly valve. The eccentric butterfly valve comprises a valve body and a valve rod, the valve rod penetrates through the valve body and comprises a stuffing box which is located between the valve rod and the valve body and used...
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| creator | SU HUANGLEI JIN NING LIU HAOQUN WANG ZE HU ZIQIANG ZHANG YINGXIAO FAN CHENGYU CHEN XIAOJUN YANG ZHIFENG ZHU SHUAI |
| description | The invention discloses a valve rod sealing structure of an eccentric butterfly valve. The eccentric butterfly valve comprises a valve body and a valve rod, the valve rod penetrates through the valve body and comprises a stuffing box which is located between the valve rod and the valve body and used for sealing a fit clearance between the valve body and the valve rod so as to prevent medium leakage; the stuffing pressing plate is arranged at the upper end of the valve body and used for pressing the stuffing box to enable the stuffing box to generate radial deformation so as to form axial sealing of the valve rod; the Y-shaped sealing ring is located between the stuffing pressing plate and the upper end of the stuffing box; the Y-shaped sealing ring is limited according to the packing pressing plate and the upper end of the packing box, and a sealed space is formed between the packing box and the packing pressing plate. The valve rod part of the eccentric butterfly valve adopts a Y-shaped ring sealing structur |
| format | Patent |
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The eccentric butterfly valve comprises a valve body and a valve rod, the valve rod penetrates through the valve body and comprises a stuffing box which is located between the valve rod and the valve body and used for sealing a fit clearance between the valve body and the valve rod so as to prevent medium leakage; the stuffing pressing plate is arranged at the upper end of the valve body and used for pressing the stuffing box to enable the stuffing box to generate radial deformation so as to form axial sealing of the valve rod; the Y-shaped sealing ring is located between the stuffing pressing plate and the upper end of the stuffing box; the Y-shaped sealing ring is limited according to the packing pressing plate and the upper end of the packing box, and a sealed space is formed between the packing box and the packing pressing plate. 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The eccentric butterfly valve comprises a valve body and a valve rod, the valve rod penetrates through the valve body and comprises a stuffing box which is located between the valve rod and the valve body and used for sealing a fit clearance between the valve body and the valve rod so as to prevent medium leakage; the stuffing pressing plate is arranged at the upper end of the valve body and used for pressing the stuffing box to enable the stuffing box to generate radial deformation so as to form axial sealing of the valve rod; the Y-shaped sealing ring is located between the stuffing pressing plate and the upper end of the stuffing box; the Y-shaped sealing ring is limited according to the packing pressing plate and the upper end of the packing box, and a sealed space is formed between the packing box and the packing pressing plate. The valve rod part of the eccentric butterfly valve adopts a Y-shaped ring sealing structur</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS |
| title | Valve rod sealing structure of eccentric butterfly valve |
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