Sealing detection device and method of one-way valve
A one-way valve and reversing valve technology, which can be used in liquid/vacuum measurement for liquid tightness, and by measuring the acceleration and deceleration rates of fluids. , Guarantee the pass rate and avoid the effect of invalidation
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[0015] figure 1 Shown is a check valve sealing detection device 20 according to the present invention, which is used for testing the sealing ability of the check valve 6 . The one-way valve 6 can especially be a one-way valve used for cement-type floating hoop shoes. However, it can be understood that the sealing detection device of the present invention is also applicable to any type of one-way valve.
[0016] Such as figure 1 As shown, the one-way valve sealing detection device 20 includes a platform 7 , and a vacuum pump 1 , a reversing valve 3 , a negative pressure gauge 4 and a one-way valve seat 5 installed on the platform 7 . The vacuum pump 1 , the reversing valve 3 , the negative pressure gauge 4 and the one-way valve seat 5 are connected to each other through the pipeline 2 in sequence.
[0017] According to the invention, the one-way valve seat 5 is a substantially cylindrical body defining an open inner cavity 8 therein. The upper end of the inner cavity 8 is a...
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