Stop valves are a type of valve used in piping systems to control or shut off the flow of liquids or gases within pipes. They are typically installed to halt the flow when repairs, maintenance, or pressure control are required. There are various types of stop valves, designed according to the specific application and system pressure.
Structure and characteristics of shut-off valves:
Flow Shut-off: This valve is typically used to prevent the flow of liquid or gas through pipes in specific situations.
Pressure Control: In systems requiring precise pressure control, the shut-off valve can assist in regulating pressure.
Construction: These valves are usually made from materials resistant to pressure and temperature, such as stainless steel or cast iron.
Simple Operation: Manual or automatic mechanisms are typically used to start or stop the flow. In manual operation, an operator must open or close the valve.
Types of shut-off valves:
- Globe valve: This type of valve is used for precise flow regulation and is typically installed in liquid or gas transmission lines that require flow adjustment.
- Gate valve: Designed to completely shut off or open the flow, without the need for precise regulation.
- Ball valve: This type of valve uses a spherical ball to block or open the flow path, allowing for rapid shut-off.
Applications:
In the oil and gas industries: to control or shut off the flow of liquids or gases in transmission lines.
In water supply and wastewater systems: to shut off or restore water flow during emergencies.
In industrial facilities: to prevent equipment damage in the event of malfunctions or when repairs are required.
Shut-off valves can operate either manually or automatically (via an actuator); the choice of valve depends on system conditions, the type of fluid or gas, pressure, temperature, and the need for flow regulation.
This type of valve is available in sizes ranging from 25 to 300 mm and in various classes.
Below, you can see examples of the shut-off valves currently in stock:
