What is a flow control valve and what are the functions of flow control valve

What is a flow control valve and what does it do

A flow control valve can regulate the rate of airflow, these valves would regulate the actuators according to the flow rate. These valves are also known as a flow regulating valves. Flow control is achieved by minimizing the area of the flow through the valve. These valves can regulate the hydraulic cylinder speed and motors. The operation of the flow valve takes place in a partially opened way. These valves can reduce the flow pressure. Flow control valves can limit the in or outflow in a component and they do this by speed control. These valves are capable to divert the direction of the flow from the component. These valves are the combination of a flow control valve, deceleration valve, and a check valve


What are the uses of flow control valves and does a flow control valve to reduce pressure? What is a flow control valve used for

Mostly flow control valves are used for controlling rapid traverse and feed cycles in machine tools. Switching from rapid traverse to feed is made by a cam operation, and proper feed control is accomplished by dial rotation regardless of pressure and oil temperature variation. Flow control valves control the pump pressure in a good manner, flow valves would respond to a small pressure difference against the load pressure. Less power is consumed by the valve operation. These valves have temperature compensators, so they can give a better flow rate. These valves are also used to regulate the hydraulic cylinders and motors.

What are the functions of flow control valve

The major function of the flow control valve is to control the rate of fluid flow, these valves control the fluid flow in a hydraulic circuit. These valves are also used in pumps to control the pressure and they are also used in motors. Flow control valves accurately limit the fluid volume rate from a displacement pump to or from branch circuits. They can control the velocity of linear actuators or speed control of rotary actuators.

There are many functions for flow control valve some of them are, the speed regulation of rotary and linear actuators. These valves would regulate the pump flow to various branches of the circuit.

How does a flow control valve work and what effect does a flow control valve have on an actuator

Flow control valves vary their output flow proportional to input current, so by controlling the input current from the power amplifier the flow rate in the system can be continuously and remotely regulated. If these valves have to do the pressure and temperature compensation, then the flow rate won’t be affected by the temperature and pressure variations. Flow control valves are used with power amplifiers and they are also chosen for the usages where the start-up, stop, and speed change of the actuator is needed to be done. These valves control the speed of linear and rotary actuators.

What is a flow control valve in hydraulics and how does a hydraulic flow control valve work

There are many control valves used in hydraulic transmission and one of them flows control valve. The flow control valve is a hydraulic valve, which controls the flow by changing the flow area of the port. According to the oil flow entering the actuating components, we can know the speed of actuating components in the hydraulic system. Speed control of the hydraulic cylinder can be done by using a flow control valve. During the extension stroke, the flow control valve would restrict the rate of flow into the cylinder. The extending speed of the cylinder is depended upon the flow control valve. Flow control valves would provide resistance to the flow in the cylinder and this is the meter-in flow control system and in the meter, out circuit, it would provide resistance to overrunning load.

What are the types of flow control valves

Needle valves

These valves are mostly used to give proper flow control in small diameter piping. The needle valve has got its name by its structure, it got its name by its sharp potential conical disk and matching seat. The needle valve is the most common and simplest flow restriction valve. Needle valves have a pointy stem that is adjusted to control the rate of fluid flow through the valve. These valves are constructed by using steel bar stock and they can be seen in much hydraulic flow control. In a hydraulic system, the needle valve is also used as a stop valve.

Orifice check valve

These valves are mostly used in liquid power system, to allow the normal speed of operation in one direction and limited speed in other. Fluid flow through an orifice is used in control valves to achieve a difference in pressure.

Globe valve

In the globe valve, it has a round disk to control the fluid flow, the flow area is larger than a needle valve. Because of this, a globe valve has a larger capacity at a low-pressure drop than a needle valve of the same size.

What are the applications of flow control valves

  • Regulating cutting tool speed, spindle speed, and surface grinder speeds
  • These valves would allow one fixed displacement pump to supply to two or more branch circuits fluid at a different flow rate
  • Used in many industrial applications
  • They are used in hydraulic systems

Other control valves

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