Intelligent ammonia leakage control valve
A valve and valve cover technology, applied in the field of ammonia leakage intelligent control valve, can solve the problems of low sealing performance, skin burns, short service life, etc., and achieve the effect of easy replacement, reducing pollution and improving service life
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[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the present invention and the present invention is not limited to the following examples.
[0029] see Figure 1-Figure 6 , the embodiment of the present invention includes valve body 1, valve disc 2, valve stem 3, bellows assembly 4, valve cover 7, packing 10, packing gland 11, guide sleeve 12, gasket 13, valve stem nut 14, gland Nut 15, handwheel 16, valve position indicator 17, explosion-proof box 19, ammonia sensor gland nut 20 and ammonia sensor assembly.
[0030] The valve cover 7 is fixed together with the valve body 1 .
[0031] A valve stem installation hole 9 is arranged in the valve cover 7 , and the valve stem 3 is installed in the valve stem installation hole 9 . The bottom of the valve stem 3 is connected with the valve flap 2 .
[0032] The valve cover 7 is composed of a lower valve cover...
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