Steel Gate Valve with Good Quality on Sale from China

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1.Structure of Gate Valve Description

A gate valve, also known as a sluice valve, is a valve that opens by lifting a round or rectangular gate/wedge out of the path of the fluid. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straight-line flow of fluid and minimum restriction is desired. The gate faces can form a wedge shape or they can be parallel. Gate valves are primarily used to permit or prevent the flow of liquids, but typical gate valves shouldn't be used for regulating flow, unless they are specifically designed for that purpose. Because of their ability to cut through liquids, gate valves are often used in the petroleum industry. For extremely thick fluids, a specialty valve often known as a knife valve is used to cut through the liquid. On opening the gate valve, the flow path is enlarged in a highly nonlinear manner with respect to percent of opening. This means that flow rate does not change evenly with stem travel. Also, a partially open gate disk tends to vibrate from the fluid flow. Most of the flow change occurs near shutoff with a relatively high fluid velocity causing disk and seat wear and eventual leakage if used to regulate flow. Typical gate valves are designed to be fully opened or closed.When fully open, the typical gate valve has no obstruction in the flow path, resulting in very low friction loss.

 

2. Main Features of the Gate Valve

• Valve body cavity using non-toxic epoxy resin,both inside and outside flashboard completely is coated with rubber

•  Free of water pollution

• High manufacturing accuracy

• High strength

• Environmental protection and energy saving

• Good visual effect

 

3. Images

Steel Gate Valve with Good Quality on Sale from China

Steel Gate Valve with Good Quality on Sale from China

Steel Gate Valve with Good Quality on Sale from China

 

4.FAQ

1. What's are the characteristics of gate valve?

The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straight-line flow of fluid and minimum restriction is desired. The gate faces can form a wedge shape or they can be parallel. 

2. What is the work principle of gate valve

 The gate faces can form a wedge shape or they can be parallel. Gate valves are primarily used to permit or prevent the flow of liquids, but typical gate valves shouldn't be used for regulating flow, unless they are specifically designed for that purpose. Because of their ability to cut through liquids, gate valves are often used in the petroleum industry. 

3.  What is the structure?

Bonnets provide leakproof closure for the valve body. Gate valves may have a screw-in, union, or bolted bonnet. Screw-in bonnet is the simplest, offering a durable, pressure-tight seal. Union bonnet is suitable for applications requiring frequent inspection and cleaning. It also gives the body added strength. Bolted bonnet is used for larger valves and higher pressure applications.

 

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Q:Pressure gauges, safety valves and other safety accessories and the cylinder can be installed between other valve components,
The lower part of the pressure gauge installed water pipe, there are water, avoid high temperature, medium pressure gauge contact directly cause damage, so regular cleaning, in order to avoid congestion, three way plug function is used for flushing, please see "how to operate them.".
Q:What does "1/2" mean on the valve?
1/2 is 4 points (20), 3/4 is 6 points (25), and 1 is 1 inches (32)
Q:Valve should be strictly marked according to the direction of instructions and media flow direction to determine the installation direction,
Refers to the installation of the interface dislocation, misalignment or installation of the wrong size and forced connection, resulting in installation stress exists, in use, it is prone to abnormal damage.
Q:What are the other valves used for the control of dual-use items?
The coding needs to do export dual-use items technical license, this is to go to Beijing for approval for 1 months, I have the electronic key for you to handle, you can also charge electronic keys
Q:Chinese valve and a valve which is better?
Look what valve you use, ah, these two can be ah!
Q:How to identify a good or bad valve?
You can see what the material inside the valve ~ basically copper heart relatively durable, solid ~!
Q:How about the valve?
Now, there is an office in Beijing, valve enterprises in the valve, a lot of online ah, you click to see if you want information
Q:Where is the Shandong valve? How about joint valves in Shandong?
Shandong valve factory is not much, but I know there is a good valve in Shandong area is doing the best, you can Baidu search Shandong valve factory in Shandong united, they do Weifang, the quality of the valve is good, the price is not high, I was with the valve dealer customers are from there I can purchase online, Baidu their company name Shandong valve contact him specific you
Q:What is the difference between low pressure valves and medium pressure valves and high pressure valves?
No 1.6-2.5Mpa levels are included in the range of the mid pressure valve.
Q:What are the most common types of valves?
Gate valve, globe valve, check valve, ball valve, butterfly valve, safety valve, drain valve, plug valve, throttle valve, plunger valve, diaphragm valve, relief valve, foot valve, drain valve etc.

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