Flange joint butterfly check valve

• Main Authors: YE BOTONG, LU BING, XU JINCHUN
• Format: Patent
• Language: Chinese; English
• Published: 15.03.2017
• 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

The utility model discloses a flange joint butterfly check valve, including valve body and valve rod, the valve body bottom is provided with the disk seat, the valve rod sets up in the valve body, the valve rod left and right sides is rotatable is provided with the valve block, the valve block closure state supports down and presses on the disk seat, still be provided with on the valve rod and guarantee the closed reset spring of valve block, the valve rod top still is provided with the gag lever post of restriction valve block upset, valve block edgewise reason is provided with U type groove, be provided with the?airbag between valve block edge and the valve body lateral wall, the the?airbag holding is in valve block edge U type inslot, and this kind of butt clamp butterfly check valve seal structure is more reasonable, and is sealed effectual, opens smoothly simultaneously. 本实用新型公开了种法兰连接蝶形单向阀，包括阀体和阀杆，所述阀体底部设置有阀座，所述阀杆设置于阀体内，所述阀杆左右两侧可转动的设置有阀片，所述阀片闭合状态下抵压于阀座上，所述阀杆上还设置有保证阀片闭合的复位弹簧，所述阀杆上方还设置有限制阀片翻转的限位杆，所述阀片沿边缘设置