Low-load type cut-off butterfly valve
A low-load, butterfly valve technology, applied in the field of low-load cut-off butterfly valves, low-load cut-off butterfly valves, can solve the problems of low-load butterfly valves, such as large leakage, inability to withstand high temperatures, and high manufacturing costs, to achieve good sealing stability and extended The effect of service life, good sealing performance
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[0017] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0018] Such as Figure 1 ~ Figure 3 As shown, including valve stem 1, bearing with square seat 2, hexagon socket bolt 3, nut 4, upper bearing seat 5, valve body 6, valve plate 7, direct pin 8, lower bearing seat 9, lock nut 10, screw rod 11 , packing plate 12, packing gland 13, packing assembly 14, packing pad 15, valve seat 16, driven shaft 17, first shaft hole 18, second shaft hole 19, stuffing box 20, first sleeve 21, second Two sleeves 22, flanges 23 and the like.
[0019] Such as Figure 1 ~ Figure 3 As shown, the present invention is a low-load cut-off butterfly valve. The valve plate 7 is installed in the valve body 6. The valve body 6 includes a first sleeve 21 and a second sleeve 22 with a stuffing box 20. The stuffing box 20 A packing assembly 14 is arranged inside, and a packing pressing plate 12 is arranged on the outside of t...
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