Hydraulic cast steel sluice valve

Abstract

The invention belongs to the field of valves and particularly relates to a hydraulic cast steel sluice valve. The hydraulic cast steel sluice valve is characterized in that a first sealing ring is installed on the position, making contact with a valve body, of one side of a flashboard, a second ring is installed on the position, making contact with the valve body, of the other side of the flashboard, and a third sealing ring is installed on the position, making contact with the valve body, of the bottom of the flashboard; a valve cover is fixed at the top of the valve body, and a hydraulic cylinder is fixed to the valve cover; one end of a valve rod is connected with the hydraulic cylinder, and the other end of the valve rod is connected with the upper end of the flashboard; a first oil filling port leading towards the valve rod is formed in one side of the valve body, and a second oil filling port leading towards the valve rod is formed in the other side of the valve body; the upper end of a non-return plate is installed on a rotary shaft, one end of a spring is connected with the middle of the non-return plate, and the other end of the spring is fixed to the inner wall, corresponding to the non-return plate, of a fluid inlet; and a filter net is fixed to the interior of a fluid outlet and pressed through a pressing sleeve.

Description

technical field [0001] The invention belongs to the field of valves, in particular to a hydraulic cast steel gate valve. Background technique [0002] The valve is a control component in the fluid delivery system, which has functions such as cut-off, adjustment, flow diversion, reverse flow prevention, pressure stabilization, flow diversion or overflow pressure relief. Gate valve is a commonly used valve. There is an opening and closing gate inside the gate valve. The direction of movement of the gate is perpendicular to the direction of the fluid. The gate valve is fully open and fully closed. It can be widely used in tap water, sewage, construction, petroleum, It is used as a regulating and intercepting device on the pipelines of chemical industry, food, medicine, light textile, electric power, shipbuilding, metallurgy, energy system, etc. The existing gate valve has the following problems during use: the gate valve does not have a non-return function, and cannot prevent ...

AI Technical Summary

Problems solved by technology

The existing gate valves have the following problems during use: the gate valve does not have a non-return function and cannot prevent fluid from reversing

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