What is an air flow control valve?
A flow control valve adjusts and controls the volume flow of air within a pneumatic system. They can often be used to adjust the speed of operation of an actuator. They should not be confused with pressure controllers, or regulators.
What are the two types of air valves?
Types of Air Valves Check valves are self-actuating and prevent the reversal of process flow. Diaphragm valves separate the flow of water from the closure element.
What is an air solenoid valve?
A solenoid valve, also known as an electrically-operated valve, is a valve that uses electromagnetic force to operate. When an electrical current is passed through the solenoid coil, a magnetic field is generated which causes a ferrous metal rod to move.
Why do I need a flow control valve?
The purpose of a flow control valve is to regulate the flow rate in a specific portion of a hydraulic circuit. In hydraulic systems, they’re used to control the flow rate to motors and cylinders, thereby regulating the speed of those components. The energy transfer must be equal to the total work done.
How many types of air valves are there?
There are three basic types of air valves standardized in American Water Works Association (AWWA) Standard C512-15: “Air-Release, Air/Vacuum, and Combination Air Valves for Water and Wastewater Service.”
Which type of air valve is automatic?
AVK automatic air valves are designed with a very soft and sensitive seal. It enables effective discharge of accumulated air from the system while under pressure. The automatic air valve is light-weight and compact with a 12 mm2 orifice enabling release of air at high flow rates.
What is CV for a control valve?
Valve Flow Coefficient (Cv) is the flow capability of a control valve at fully open conditions relative to the pressure drop across the valve. It is defined as the volume of water (GPM in the US) at 60°F that will flow through a fully open valve with a pressure differential of 1 psi across the valve.