According to the shape, the gate valve is divided into square port gate valve, round port gate valve and one side square port and one side round port gate valve According to the type, it can be divided into manual gate valve, electric gate valve and pneumatic gate valve The common parameters of gate valve can be divided into inner diameter 200300400500 and so on Manual gate valve is the main equipment to control the flow of powder, crystal and small particles
Manual gate valve is widely used in metallurgy, mining, building materials, grain, chemical and other industries
The manual gate valve is equipped with electric, pneumatic and electro-hydraulic push rods as the driving device
It is an ideal equipment to control the flow and cut off quickly
This series of manual gate valves are welded with high-quality carbon steel
The manual gate valve has the characteristics of compact structure, wear resistance, small leakage, simple operation, flexible action and labor saving
It can work normally in the environment of high temperature, high dust and strong magnetic field
The products of gate valve are classified according to the flange shape: square mouth and round mouth
According to the driving mode: manual, chain drive, pneumatic, electric, manual plug-in valve is a kind of main control equipment for the flow or transportation of powder, crystal and granular materials, granular materials and small materials
It adopts the manual operation and ash unloading mode, which is simple to operate and easy to maintain
It is widely used in iron and steel, mining, grain and other industries, and the main specifications are 200 & times; 200&; 250× 250&; 300× 300&; 400× 400&; 500× 500, etc
can also be processed according to user needs
Manual gate valve is a simple manual gate valve
It is used in pipes, silos and other places for controlled release collection of materials
With the more and more extensive application of the original manual gate valve, there are more and more customization requirements, so it is inseparable from the corresponding drawings
The drawing requirements and standards of manual gate valve must be designed according to the requirements in order to play a corresponding role
The manual gate valve has the advantages of simple and compact structure, reasonable design, reliable sealing, light and flexible operation, small volume, smooth channel, low resistance, easy installation and disassembly
The manual gate valve can be installed horizontally or vertically, with anti-wear and automatic compensation function and long service life
The sealing structure of manual gate valve can be divided into soft sealing structure and hard sealing structure
The sealing valve seat is designed with movable structure, with anti-wear and automatic compensation function, so it has a longer service life
In the process of closing and opening, the valve seat and the gate have been close to each other, which makes the opening and closing force of the valve stable and has the characteristics of cutting off the medium
Equipped with a hand wheel, you can directly operate the hand wheel to open and close the valve
Manual gate valve, also known as manual screw gate valve and manual screw gate valve, is mainly composed of frame, ram, screw rod, nut, hand wheel and other parts
By manually turning the hand wheel, the screw rod drives the ram to move up and down repeatedly along the water square, so that the manual gate valve can achieve the purpose of opening and closing
Manual gate valve is the main control equipment, which is widely used in metallurgy, mining, building materials and grain
The diameter of manual spiral gate valve is matched with the feed inlet of unloader, which can be divided into square and round
Manual gate valve is also called manual screw gate valve, which is usually used with unloader
It is mainly composed of frame, ram, screw rod, nut, hand wheel and other parts
By manually rotating the hand wheel, the screw rod drives the ram to move up and down repeatedly along the water square, so that the manual gate valve can achieve the purpose of opening and closing
The diameter of the manual screw gate valve is matched with the feeding port of the unloader, which can be divided into square and round
The valve has the advantages that the valve body has no groove in the diameter, the medium will not be blocked, and has the characteristics of full diameter flow, which is suitable for the pipeline of powder particle medium
The sealing structure of sliding plate door can be divided into soft sealing structure and hard sealing structure
It has the characteristics of good manufacturability and compact structure
The sealing valve seat is designed as a movable structure and has the functions of anti-wear and automatic compensation, so it has a longer service life
During the closing and opening process of the gate, the valve seat and the gate have been close to each other, which makes the opening and closing force of the valve stable and has the characteristics of cutting off the medium
Equipped with a hand wheel, you can directly operate the hand wheel to open and close the valve
Pneumatic structure features: the pneumatic one-way flat gate valve adopts steel plate welding structure and self resetting mechanism of counterweight rod, with compact structure and stable operation
The classification characteristics and structure of the gate valve consist of pneumatic gate valve and pneumatic two-way flat gate valve
The gate is mainly composed of frame, gate and cylinder
The air source drives the cylinder through the electromagnetic directional valve, and the cylinder drives the gate to move back and forth in the horizontal direction, so as to achieve the purpose of opening and closing the valve
The gate valve has the advantages of simple structure, light weight, flexible operation and convenient assembly and disassembly
It is made of high-quality carbon steel with high strength, good performance and long service life; The screw rod and nut adopt soft protective cover structure, which is not affected by external dust
Pneumatic gate valve, electric gate valve and manual gate valve are mostly used for the supporting use of unloader, which are divided into square mouth and round mouth
The type of pneumatic gate valve shall be selected according to the shape of unloader
The plug valve produced by Xinjia machinery is durable, with small flow resistance, small volume, light weight, convenient maintenance and wide use
The sealing structure of gate valve can be divided into soft sealing structure and hard sealing structure
The manual gate valve has the characteristics of good workmanship and compact structure
The sealed valve seat is designed as a movable structure
It has a basic type of anti-wear parts failure and automatic compensation function, so it has a longer service life
Pneumatic gate valve is the main equipment for conveying and controlling the flow of powder, crystal particle and small particle (unit: cubic meter per second)
Pneumatic gate valves are widely used in metallurgy, mining, building materials, grain, chemical and other industries
The gate is equipped with electric, pneumatic and electro-hydraulic push rods as the driving device
It is an ideal equipment to control the flow and cut off quickly
Qiandingxin environmental protection manual gate valve is welded with high-quality carbon steel and is widely used in metallurgy, carbon, chemical industry, building materials and other industries
It is mainly used for flue gas regulation and switching in flue gas pipeline system of flue gas purification system
Pneumatic gate valve, electric gate valve and manual gate valve are installed at the discharge port of various powder and particle gas material hoppers or on the pipeline to open and shut off
The flow of materials can also be controlled by adjusting the opening
Precautions and characteristics in the use of dust removal gate valve electric gate valve: the opening and closing part of the gate valve is the ram, and the movement direction of the ram is perpendicular to the fluid direction
The gate valve can only be fully opened and closed, not adjusted and throttled
The ram has two sealing surfaces, * in common mode, the two sealing surfaces of the ram valve form a wedge, and the wedge angle varies with the valve parameters, usually 50
The ram of the wedge gate valve can be made into a whole, which is called a rigid ram; It can also be made into a ram that can produce slight deformation to improve its manufacturability and make up for the deviation of the angle of the sealing surface in the processing process
This kind of ram is called elastic ram
When the gate valve is closed, the sealing surface can be sealed only by relying on the medium pressure, that is, the sealing surface of the gate plate can be pressed to the valve seat on the other side by relying on the medium pressure to ensure the sealing of the sealing surface, which is self sealing
The advantage of this valve is that the valve body has no groove in the diameter, the medium will not be blocked, and has the characteristics of full diameter flow
Its sealing structure can be divided into soft sealing and hard sealing structure
The penetrating knife gate valve has the characteristics of precise structure, good manufacturability and compact structure
The sealing valve seat is designed as a movable structure and has the functions of anti-wear and automatic compensation, so it has a longer service life
In the process of closing and opening, the valve seat has been close to the gate, making the opening and closing of the valve fixed, and has the characteristics of cutting off the medium
The driving device of gate valve can adopt electric and pneumatic manual devices
Qiandingxin environmental protection manual plug valve is suitable for metallurgy, chemical industry, grain and other industries
It is an ideal material isolation equipment
Manual gate valve Installation steps:
1
: before installation, the valve cavity, sealing surface and other parts must be checked, and dirt or sand particles are not allowed to adhere;
2
Bolts at all connecting parts shall be tightened evenly;
3
Check that the packing parts are required to be pressed tightly, which not only ensures the tightness of the packing, but also ensures the flexible opening of the insert plate;
4
Before installing the valve, the user must check the valve model, connection size and pay attention to the medium flow direction to ensure consistency with the requirements of the valve;
5
When installing the valve, the user must reserve the necessary space for valve driving;
6
The wiring of the driving device must be carried out according to the circuit diagram;
7
The gate valve must be maintained regularly and shall not be collided or squeezed at will, so as not to affect the sealing