In almost all fluid services such as air, fuel gas, feedwater, steam, lube oil, hydrocarbon, etc gate valves are used and these valves provide good shutoff.
These valves are also used in wastewater plants, food processing facilities, and process plants.
Function of Stop Valve
The stop valves (SVA) are used to shut off flow of hot or cold water in plumbing fixture. Stop valve is a valve system which is designed to stop flow of liquid through a pipe it is generally used in important machinery or a human workstation. There are many day to day applications in which we will find use of SVAs such as faucet, icemaker, bathrooms, dishwasher and washing machines.
Stop valve
A stop valve (SVA) can be operated manually or automatically. Manual SVAs generally have a screw handle to stop and allow the fluid to flow through the pipe, which is most commonly used valve in plumbing applications. These valves are installed in between the fixture and the piping which stub out from the walls or flooring. Stop valves permit to perform routine maintenance, for example, channel change and deplete cleaning, and in addition to supplant the whole apparatus or machine or make minor repairs, for example, changing gaskets or water supply connectors.
Types of stop Valve
Stop valves (SVA) are available in two types
Angle-way Type
Straight-way Type
Versions with Standard neck (SVA-S).
These valves are exceptionally intended to meet all modern refrigeration application prerequisites and are to provide favorable stream qualities and are anything but difficult to decimate and repair when vital. They support is very simple consequently Stop valves are favored by numerous refrigeration applications. The stop valve cone is intended to guarantee consummate shutting and withstand a high framework throb and vibration, which can be available particularly in the release line.
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Design of Stop Valve (SVA)
Stop valve is designed with prospect to use in industrial refrigeration system it consist of three major parts namely valve cone, spindle, packing gland the brief description is given below.
Valve Cone:
The valve cone can be turned on the axle. Along these lines there will be no erosion between the cone and the seat when the valve is opened and shut and the extraordinary plan will maintain a strategic distance from cone turn because of throb and vibration when the valve is in vacant position. A Teflon fixing ring furnishes consummate fixing with least shutting power.
Valve lifting, transportation, and installation
Gate valves should be transported in a closed position. Gate valves do not usually have lifting lugs. Gate and globe valves are lifted by using a cloth wrapped around the body and bonnet connection under the yoke
Gate valves should not be installed with their stem below the horizontal line. If they are, complete drainage is not possible and solids will accumulate in the bonnet that can affect the operation and service life of the valve (increasing the possibility of packing damage). Both positions of installation for gate valves are acceptable since the stems are not below the horizontal line.
Gate valves Model:Z41H-150LB
Gate valves Driving mode:Manual operation , pneumatic, electrokinetic
Applicable medium: water, steam, oil
Gate valves Sealing form: hard seal
Gate valves Temperature: normal temperature
Gate valves Pressure: normal pressure
caliber:complete
Gate valves Standard: American Standard
Gate valves Connection method: flange
Gate valves Media flow direction: unidirectional