Valve with Competitive Price from Valve Manufacturer on Sale

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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

 

Valve with Competitive Price from Valve Manufacturer on Sale

Valve with Competitive Price from Valve Manufacturer on Sale

4. Gate valve Specification

 Valve with Competitive Price from Valve Manufacturer on Sale

5.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:Which direction is the valve? Which direction is it?
Ball valve: handle and Guan Daocheng 90 degrees for the pass, 180 degrees to open (ie in line with the direction of the pipe open)The gate: clockwise, counterclockwise.
Q:What's the advantage of using three way valves?
The principle of three way valve:The most obvious three valves and other valves is the difference in appearance, three way valve has three channels, mainly used to change the medium to flow through valve three, which in addition to import A, B, C and reversing port of export, common valve is not capable of changing the flow direction of medium function. The flow direction of the medium can be determined according to requirements.
Q:How do I open the gas valve?
1, the natural gas valve "Shun" pipeline is open, "horizontal" as "off". The following is to open the valve diagram Turn left and turn right | 2. Attachment: the function of the main facilities of natural gas is:Valve well: a device for installing a valve to control an underground gas pipeline. The building regulation boxes or regional station: the device will be adjusted to the user requirements of medium pressure natural gas pressure. The riser valve: General in the first floor of the building, the kitchen are arranged on the pipe, the vertical pipe used to control all users. Indoor main valve: also known as meter front valve, is the home gas main switch, placed in front of the gas meter, used for natural gas on-off. This valve "opens" the pipe to be opened, "cross" is the pass. Gas meter: IC card intelligent gas meter and user gas consumption measuring device. The front of the stove valve: located in the table, the control valve of gas stove, gas should be closed after the end of time. The IC card is convenient for users to purchase gas use.
Q:What is the difference between the valve before the pump and the valve after the pump?
The effect is the same, but the pressure they bear is the opposite. The pump is subjected to negative pressure.
Q:What valve is the DN 25?
That is, the inner diameter of the valve is 25 millimeters
Q:What valve does the high pressure by-pass valve DN254 * 800 belong to?
This is because the bypass valve is a special valve and other valve type theory.This is custom-made valves, generally no inventory, and may not have the material you need. So it needs to be customized.I remember the German HORA had the valve, but the price was sky high.
Q:What are the definitions of internal, external and leakage valves?
Upstairs to say there is a problem. The leakage within the valve that is the reason of erosion wear medium makes the valve is not closed tightly, even if the valve screw (stem) screwed in place, because there is still a gap between the spool and the valve body, the medium can flow past. Outside leakage generally refers to the valve and connecting flange or threaded connection between the seal and guide...
Q:Valve should be strictly marked according to the direction of instructions and media flow direction to determine the installation direction,
Pro, strong counterpart refers to the valve in the pipeline connection, generally refers to the thread connection or welding to connect the valve, the valve and pipeline connection imposed by the larger external force, it will cause great stress and plastic deformation, easy to cause the valve to open or close the lax.
Q:Yongde jiekelong valves and valves of the good faith
Interior decoration is the most cost-effective brand, switches, sockets, Zhejiang, Yongkang, France and Germany electrical appliances. Plumbing valve, Zhejiang, Yongde, Yongkang letter. Bathroom accessories Fujian Nanan Jomoo bathroom.
Q:What are the valve types H, F, and Y? What are the meanings of these 3 letters?
Please refer to "JB/T308-2004 valve model preparation method"Sealing surface material codeH Cr13 stainless steelF fluoroplasticY cemented carbide

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