valterra 7134 abs gate valve, black, 1-1/2″
whats the differencebetween a gate valve and a knife gate valve
Gate valves are the most common valves found in the distribution system. Gate valves are mostly used for the on/ off control. Gate valves prevent the flow of the liquid in both directions. They are very easy to install and to maintain. Gate valves are cost-efficient and they are mostly used in petroleum industries because of their abilities to cut through liquids.
What is a Gate Valve?
A gate valve is a linear motion valve that is used to start or stop the flow of the fluid in piping. There is a gate or wedge type disk which moves perpendicular to the flow which directs the flow to stop or start. In any process plant, the gate valve has the most common use and are suitable for both above-ground and underground installations.
A gate valve is also known as a sluice valve. It is very easy to open it, one just have to lift the gate out of the path of the fluid. It does not require a wide surface; it fits in a very little space along the pipe axis. It requires a 360° surface contact between disk and seat to achieve proper sealing. A Gate valve is made up of certain parts that allow it to function properly. Valve’s body or shell is the most principle part of this particular valve which can connect the inlet and outlet pipes in a piping system.
What are the different applications of Gate Valves?
Mainly it is used for all kinds of applications and it is the best fit for all types of above ground and underground applications.
- It is mostly used when the pressure loss is minimum and when the free bore loss is needed.
- It can be used for numbers of fluids and it is suitable for potable water, wastewater and neutral liquids
- The temperature is required between -20 and + 70-degree centigrade for which the velocity of the flow should be 5 m/s and up to 16 bar differential pressure.
What is the working principle of the Gate Valve?
There is a handle wheel on the top of the gate valve and when this wheel will be rotated in a clockwise direction, the steam and gate will move in the downward direction. It prevents the leakage of fluid through the valve.
When the wheel is rotated in the anti-clockwise direction, the valve will be opened and the steam and gate will move in the upward direction across the fluid. The gate valve can also be used in the semi-opened direction but the erosion of gate as fluid will strike and hence it is not recommended to open it partially.
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