High-airtightness multi-way valve

Abstract

A high-airtightness multi-way valve comprises a valve body, high-airtightness valve elements, valve clacks, sealing pieces, packing material boxes, valve rods, packing material cushions, packing materials, packing material glands, tightly-splicing nuts, hand wheels, nuts, spacers, a pressure gauge connector and a connecting pipe. The valve body is composed of a main valve first valve body and an auxiliary valve second valve body, an inlet and two outlets are formed in each of the first valve body and the second valve body, and the inlet of the second valve body is connected with the first outlet of the first valve body. The second outlet of the first valve body is connected with a pressure gauge or a sampling device, the corresponding valve rod and a valve plate which are controlled by a first handle are arranged on the first valve body, and the first valve body handle controls the first outlet or the second outlet. The two corresponding valve rods and valve plates which are controlledby a second handle are arranged on the second valve body, the packing material cushions, the packing materials and the packing material glands are arranged on the valve rods controlled by the first valve body handle and the second valve body handle, and the tightly-splicing nuts are provided with screws to be arranged on the packing material glands in a rotary pressing covering mode.

Description

Technical field: [0001] The invention relates to a pipeline control system, in particular to a high-seal multi-way valve for integrated control of multiple functions such as on-off, sampling and sewage discharge for the pipeline system. Background technique: [0002] In my country's petroleum, chemical, fertilizer, electric power, pesticide, chemical fiber, food, medicine, metallurgy and other industrial sectors, as well as national defense, scientific research, transportation, agriculture and even living facilities, there are a large number of pipeline control systems, and valves are important components of this control system , There are many kinds of control components, which are used to realize various functions of the control system, realize safe and reliable operation of pipelines, realize various functional requirements required, and meet various production and living requirements. If the control components can be reduced, a lot of installation space can be saved, and ...

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