Can a globe valve regulate the flow rate and why can t a gate valve regulate the flow rate

Shut-off valves. It is possible to regulate the flow rate, but it is much worse than the control valve.

In the actual operation, the globe valve can also play a role in regulating the pressure or flow, but it is coarse adjustment, and it is close adjustment, the globe valve and the regulating valve can not be mixed, and it can also be used if it meets the coarse adjustment requirements in individual places.

The shut-off valve can adjust the flow rate, but it is coarse, and it is mainly used in the pump outlet, before and after the regulating valve, and the cooling water of the heat exchanger.

and other parts. For precise adjustment, needle valves can be used, but the diameter of the needle valves is relatively small.

Gate valves are generally used for cut-off and are not used to regulate the flow rate.

The control valve can automatically adjust the flow, but it is very expensive, and a control valve can buy a Roewe.

A mid-range car like Buick is more expensive, and a large-caliber one is more expensive. Whether to use a control valve or a manual valve depends on the process requirements and the comprehensive selection from the economic perspective.

This must be paid attention to when selecting valves: the globe valve can only roughly control the flow rate, and to accurately control the flow rate, you need to use a regulating valve, or a graduated valve with a dial, so that the flow can be controlled more accurately.

Yes, but the space for adjustment is small, and it can be controlled according to the height of the valve disc when the valve disc is raised, and the maximum flow rate is the most open, and vice versa.

Yes, and it also has a stress-relieving effect.

Yes, but there is no specific value, if you want to calculate, the harm can be calculated.

The following are some of the well-known brands recognized in the valve industry, which are widely recognized and enjoy a high reputation. Although the ranking may change due to time and market conditions, the following brands are generally considered to be one of the top brands in the stove valve industry: water system valves and industrial valvesThe following more influential first-line brands can be used as a reference, but the stuffy ruler is for reference only:

Suzhou Neway Valve Co., Ltd., Shanghai Guanlong Valve Machinery, Shanghai Qizhong Valve Manufacturing, 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 due to changes in a series of factors such as changes in the market, the size of the competition pattern, the stability of product quality, and the occurrence of a high degree of floating at any time. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

It can be adjusted, but I don't know the size of the flow.

A gate valve can regulate the flow rate, but it is not suitable for use as a control valve in a regulating system.

Because the regulating system requires a certain mathematical relationship between the mechanical position (opening) of the regulating valve and the flow through it (logarithmic, parabolic).

linear), at least with the same opening capacity. And the structure of the gate valve determines that it is difficult to meet this condition, soNopeSuitable for use as a control valve in a regulating system.

Of course, this is not absolute, for example, when adjusting the flow rate of the open channel, it can be adjusted directly with the gate, not to mention the gate valve.

Adjust the flow rate with a gate valve, the gate is in a half-open state, and when the medium flows, it will impact the gate, which may damage or bend the gate.

Related to the shortcomings of the gate valve itself, it is easy to cause erosion and abrasion between the sealing surfaces, and it is difficult to maintain. The gate valve has a large size, requires a certain space to open, and has a long opening and closing time. The structure is complex and has no directionality, so it is not suitable for regulating the flow rate.

For the understanding of flow control valves, it is necessary to use pressure control valves.

Compare and comprehend.

The flow control valve is used to adjust the flow rate, and the flow rate at the outlet of the valve is adjusted by adjusting the opening of the valve core. Typical flow control valves such as motorized needle valves, motorized ball valves, and motorized butterfly valves.

Pressure regulating valves are mainly used to regulate the pressure at the outlet of the valve, such as pressure reducing valves.

It is a kind of pressure imitation Luyan regulating valve, which adjusts the high pressure at the inlet to the required low silver pressure at the outlet of the valve.

The globe valve can not be used as a control valve, the globe valve can adjust the flow rate, but it is not ready to adjust, and the general use of the globe valve to regulate the flow rate is not too high.

When the medium enters the valve from below the valve disc, the resistance that needs to be overcome by the operating force is the friction between the valve stem and the packing material and the thrust generated by the pressure of the medium, and the force of closing the valve is greater than the force of opening the valve, so the diameter of the valve stem should be larger, otherwise the fault of the top bend of the valve stem will occur.

Cut-off shut-off valves are ideal for shut-off or adjustment and throttling. This type of valve is very suitable for regulating the flow rate because the stem opening or closing stroke is relatively short, and because it has a very reliable shut-off function, and because the change of the seat port is proportional to the stroke of the disc.

Shut-off valve: can be used to regulate or cut off the flow of media.

Pros: **Discounts, available everywhere.

Disadvantages: The regulated flow rate is not accurate.

If there is a certain requirement for accurate flow in use, it is recommended to use a special flow control valve.

No, the role of the globe valve and the regulating valve is completely different, the regulating valve is to control the size, the globe valve literally I think you should know what it is for, by the way, the regulating valve should be able to be used as a globe valve.

The globe valve can adjust the flow rate, but it is not ready to be adjusted, and the general use of the globe valve to regulate the flow rate is not too high.

The globe valve, also known as the shut-off valve, is a forced sealing valve, so when the valve is closed, pressure must be applied to the disc to force the sealing surface not to leak. When the medium enters the valve from the bottom of the valve disc, the resistance that needs to be overcome by the operating force is the friction between the valve stem and the packing and the thrust generated by the pressure of the medium, and the force of closing the valve is greater than the force of opening the valve, so the diameter of the valve stem should be larger, otherwise the failure of the top bend of the valve stem will occur.

After reading your questioning. What I'm going to tell you is that the faucet you're talking about is a civilian valve. The "cut-off" and "regulation" mentioned here are used in industry, and the industrial standard must be controllable and accurate, and the globe valve cannot be used for regulation. So no.

No, it can't. I'll give you a ** look.

OK. The level of adjustment is a test of human control.

The upstairs are all half-understood. The main function of the globe valve is, of course, to cut off, as a regulating valve, there is no regular flow characteristics, such as the general linear characteristics of the regulating valve, under the condition of a certain pressure difference, open 10% of the flow is about 10% of the total flow, 50% is 50%, this is due to the special design of the valve core of the regulating valve, and the globe valve can not be done to the limit valve approximately quick opening, and the more the opening is large, the smaller the flow change, can not be used in the automatic control system. Another reason is that the globe valve has no characteristics, and when controlling a small flow rate, the opening is very small, the fluid velocity is very fast, and the flushing of the valve core is large.

Therefore, it is still possible to use occasional throttling in daily life, as an authentic industrial automatic control or choose a control valve

The flow control valve can still be used frequently in our daily life, which controls the adjustment of flow and pressure, and has a great impact. So how to adjust the flow control valve, and what problems should be paid attention to when installing the flow control valve, do you know the first time? Now let's take a look.

1. How to adjust the flow control valve.

The flow control valve is based on the signal of its adjusting part, and the opening of the valve ridge wax door reaches a certain position, so that the flow, pressure, and liquid are automatically adjusted. The control valve is generally divided into a straight-through single-seat control valve and a straight-through double-seat control valve, in which the latter has the advantages of large flow capacity, small unbalanced operation, and very stable operation, so it is used in large flow and high pressure drop places.

Second, what problems should be paid attention to when installing flow control valves.

1. Inspect the various parts of the installed control valve to see if it is damaged or loose. If the substances used are harmful to the human head, then the strength, sealing, and leakage of the control valve are tested to avoid all kinds of accidents.

2. Before installation, all pipes and valves of the control valve need to be cleaned to ensure that no magazines or grease will remain, especially in the production place where the oil is prohibited, and the user's requirements for the control valve are very high. And it is necessary to choose the right lubricant according to the working medium.

3. In the place where the control valve is installed, special attention needs to be paid to the safety of the installer and the safety of the equipment, which is conducive to the installation work, and has a great help for the later disassembly and maintenance.

4. When installing the valve, make the valve perpendicular to the horizontal pipeline as much as possible to avoid the valve being too tilted. If the valve is large from vertical, or if there is vibration, then it is necessary to use a support frame to fix the control valve.

How to adjust the flow control valve, and what issues should be paid attention to when installing the flow control valve, I will introduce it here, do you understand? When installing the flow control valve, you need to pay attention to various small details so as not to affect the later use.