Is the parallel double gate gate valve a double gate flat gate valve?

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The following influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

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That's right, it's a double-gate flat gate valve.

The single ram is cast as a whole or the two plates are welded together through the shaft in the middle, anyway, he is a whole, and the two plates are relatively immovable.

The double ram is two plates, with a top core in the middle, and the two plates can be moved relatively with a certain angle compensation.

The internal structure of the single plate gate valve and the double plate gate valve and their differences are as follows:

Do you need to provide a flat gate valve with a single gate and a flat gate valve with a double gate?

According to the driving mode, flat gate valves can be divided into manual flat gate valves, pneumatic flat gate valves and electric flat gate valves. According to the use and use occasions, it can be divided into flat gate valve with diversion hole, flat gate valve without diversion hole, oilfield Douwei flat gate valve, pipe air Yingpei line flat gate valve and gas flat gate valve.

Double gate valve is a type of ceramic gate valve. Therefore, its structure and working principle are consistent with that of the gate valve, and its opening and closing body (valve plate) is driven by the valve stem to drive the sealing surface of the valve seat to lift and move, which can connect or cut off the channel of the fluid. When the valve is partially opened, eddy current is generated on the back of the ram, which is easy to cause erosion and vibration of the ram, and it is easy to damage the sealing surface of the valve seat, which is difficult to repair, and is usually suitable for the working conditions that do not need to be opened and closed frequently, and keep the ram fully open or fully closed.

The working principle of parallel double gate valve: with the help of the external force provided by the cylinder or handwheel, the valve stem drives the valve plate to move up and down to realize the opening and closing of the valve, and the preload of the spring between the double gate plate is closely contacted by the valve plate and the valve seat in the process of valve opening and closing, so as to achieve sealing.

Electric Parallel Double Gate Gate Valve Uses Z944T W-10 Electric Parallel Double Gate Gate Valve is widely used in petroleum, chemical, pharmaceutical, electric power and other industries, and is used for opening and closing on the pipeline of steam, water, oil and other media of nominal pressure. Main Parts of Electric Parallel Double Gate Gate Valve Material Name Material Z944T-10Z944W-10 Valve Body, Valve Cover Gray Cast Iron Gray Cast Iron Gate Plate Gray Cast Iron Brass Gray Cast Iron Stem Carbon Steel (Copper) Carbon Steel (Copper) Stem Nut Bronze (Ductile Iron) Bronze (Ductile Iron) Electric Parallel Double Gate Gate Valve Performance Specification Model Nominal Pressure.

MPA) Test pressure Applicable temperature.

Applicable medium strength (water).

MPA) seal (water).

MPA) Steam, water, Z944W-10 100 oil Electric parallel double gate gate valve size and connection size Nominal diameter.

dn( ) size weight.

ldd1d2b-fdoz- dhh1l2l1z944t w-1010022921518015522-33058- More complete information at: China Gate Valve Network.

The double gate gate slide plexus valve is suitable for closed-circuit equipment on the pipeline where the medium is molded for water and sewage, and is not allowed to be used for adjusting the flow rate and emptying.

A flat gate valve is a sliding valve with a parallel ram with a shut-off piece. The closing part can be a single ram or a double ram with a break-up mechanism in between.

The pressure of the ram to the seat is controlled by the pressure of the medium acting on the floating ram or seat. In the case of a double-gate flat gate valve, the break-up mechanism between the two gates can supplement this compressive force.

At higher temperatures, the sealing performance is not as good as that of elastic gate valves or double gate valves;

It is suitable for high-temperature media that are prone to coking.

Resilient Gate Gate Valve It is a special form of wedge single gate. Compared with the wedge gate valve, the sealing performance is good at high temperature, and the ram is not easy to be stuck after heating; It is suitable for steam, high-temperature oil and oil and gas and other media, and is suitable for parts with frequent switching. It should not be used in media that are prone to coking.

The sealing performance of the double gate valve is better than that of the wedge gate valve, such as the oblique angle of the sealing surface and the fit of the valve seat are not very accurate, it still has better sealing;

After the sealing surface of the ram is worn, the metal pad at the bottom of the spherical top core can be replaced with a thicker one, and it is generally not necessary to surpass and grind the sealing surface, which is difficult to do with a single ram and elastic ram.

There are more parts than other forms of gate valves;

In addition to being suitable for steam, oil and other media, it is also suitable for the parts with frequent switching and the medium with large wear on the sealing surface, and should not be used for the medium that is easy to coke.

The sealing performance of parallel gate valve is worse than that of other forms of gate valves;

It is suitable for media with low temperature and pressure;

In addition to the ram that is equipped with a fixed plate on two rams is not easy to fall off, the ram that fixes two rams with lead wire is easy to fall off, and the use is unreliable.