Gate valves are a type of valve used in piping systems for controlling flow. They are elementary equipment that can maintain flow in water and wastewater systems, and gate valves are also commonly used in industrial settings. They perform two essential functions. First, they create a straight cut-off of fluid flowing through the pipe by closing the opening at one end and allowing only fluid to pass through the other end. This is called throttling flow. The second function is creating a straight cut-off line on either side of the gate valve, commonly referred to as causing a cut-off.
The gate valve starts or stops the flow through a pipe.
The gate valve is a type of valve that can be opened or closed by moving a wedge-shaped gate. They are used for on/off control and throttling flow. They are often used in applications where the flow direction must change over time but do not require precise control of the amount of fluid flowing through them at any given time. They are commonly used in piping systems as part of an isolation device, as gate valves can be quickly opened or closed without having to shut down other components in your system first.
They have several advantages over other types of valves, including:
- Simple design makes them easy to install and maintain; no special tools are required!
- Long service life due to minimal wear caused by operating parts rubbing together over time; no lubrication needed either!
- Non Corrosive materials (usually stainless steel) make them suitable for use with corrosive chemicals like acids or caustic soda solutions and flammable liquids like gasoline or kerosene fuel oils.*
They are used to start or stop the flow through a pipe. They create a straight line cut-off of the fluid in the pipe, which can also be used to throttle flow through the valve.
They are not recommended for corrosive chemicals such as acids, salts or alkalis. They are also not recommended for highly viscous fluids or abrasive fluids (like sand or grit).
Gate valves require very little maintenance
They require very little maintenance and should provide many years of service when installed properly. Considering the cost savings from not having to replace failed gate valves, it’s clear that proper installation is worth the effort.
The two ways to install a gate valve improperly are:
- Not installing enough packing material in the packing box so that no fluid can flow through it; and
- Not tightening all nuts on a stem assembly until they’re fully torqued (some manufacturers recommend as much as three times as much torque).
They use a rounded wedge that rises in the centre and drops at both ends of the gate.
They use a rounded wedge that rises in the centre and drops at both ends of the gate. This design allows for smooth flow when open and little or no flow when closed. There are several ways to open a gate valve:
The most common method is to pull up on the handle, which lifts the wedge and opens the valve. Some handles require you to push them down in order to release pressure on the pin holding it in place; others are spring-loaded and automatically raise once pressure has been released from below them.
These valves are extremely useful for regulating fluid flow in pipes, and you have now understood a few options. You can browse the extensive catalogue of products to find one that best suits your needs.