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Gate Valve

China Gate valves

Huahui is a manufacturer and supplier of industrial gate valves in China, who can provide you with different sizes and types of gate valves to meet your requirements, for example, 3 flanged gate valve, also named 3 inch flanged gate valve, we can provide you with 3 flanged gate valve dimensions, applications, specific parameters, etc. we also provide gate valves of various materials, such as: bronze, iron, stainless steel and cast steel. The gate valve we provide has two different types of high pressure gate valve, parallel and wedge. Parallel gate valves are used to control flow, and wedge gate valves are the most commonly used, which can close the fluid tightly. Our gate valves can be used in a wide range of applications from oil and gas to pulp and paper, and they are recognized by the industry.

What is Gate valves?

The gate valve is a gate for opening and closing. The movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed. The parameters of the gate valve vary, usually 5°, when the medium temperature is not high It is 2°52'. Improve its manufacturability and make up for the deviation of the angle of the sealing surface during processing. This kind of gate is called an elastic gate.

Gate valves are widely used for all types of applications and are suitable for both above-ground and underground installation. Not least for underground installations it is paramount to choose the right type of valve to avoid high replacement costs.

Gate Valve Parts

Main gate valve parts: body, seat, gate, stem, bonnet and actuator. The main operation mechanism is very simple. When the handwheel is turned, it rotates the stem, which is translated into the vertical movement of a gate via threads.

Types of Gate Valves

The working principle of manual gate valve: turning the hand wheel, through the thread of the hand wheel and the valve stem, raise or lower the valve plate connected with the valve stem to open and close.

Classified by shell/body material, gate valves can be divided into:

Metal material valves: such as carbon steel valves, alloy steel valves, stainless steel valves, cast iron valves, titanium alloy valves, Monel valves, copper alloy valves, lead alloy valves, etc.

Metal valve body lining valves: such as rubber-lined valves, fluorine-lined valves, lead-lined valves, plastic-lined valves, and enamel-lined valves.

Non-metallic materials valves: such as ceramic valves, glass valves, plastic valves.

Gate Valve Applications

Gate valves are used in almost all fluid services such as air, fuel gas, feedwater, steam, lube oil, hydrocarbon, and all most any services. Some special gate valve is used in slurry and powder product such as knife gate valve.

How does the gate valve work?

The gate valve is designed to open or close the flow of liquid by restricting or opening the flow with a circular or rectangular wedge. The gate valve can also control the pressure of the liquid passing through the pipe or valve.


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