What is pressure compensated flow control valve?

A pressure-compensated flow control valve has a fixed throttling flow at all pressures. The pump pressure for a three-way pressure compensated flow control valve is always equal to the pressure exerted by the actuator plus the spring pressure.

What is the function of pressure compensated FCV in hydraulic circuits?

Pressure-compensated variable flow valves have a compensator which automatically adjusts to various load and inlet pressures to maintain a consistent rate of flow (with a typical accuracy within 3% to 5%).

What does a flow compensator do?

A pressure compensator is a device built into some pumps for the purpose of automatically reducing (or stopping) pump flow if system pressure sensed on the pump outlet port, should rise above a pre-set desired maximum pressure (sometimes called the “firing” pressure).

What is compensated pressure?

Pressure compensation is the control of flow by compensating for the changes in load pressure. Most hydraulic systems today use pre-compensation as a means of maintaining consistent flow from an orifice or spool. However, there are applications when post-compensation has advantages over pre-compensation.

What is the purpose of pressure control valves?

Pressure-control valves are used in hydraulic systems to control actuator force (force = pressure × area) and to determine and select pressure levels at which certain machine operations must occur. Pressure controls are mainly used to perform the following system functions: Limiting maximum system pressure at a safe level.

What does a flow control valve do?

Flow control valves are used to regulate the flow rate and pressure of liquids or gases through a pipeline. Flow control valves are essential for optimizing system performance, relying on a flow passage or port with a variable flow area.

How does pressure Controle valve work?

A self actuated pressure control valve uses a pitot tube which gives access for process fluid to pressurize the diaphragm which then acts to open the valve so process fluid from process line can pass through. For a pressure regulator valve, pitot tube connects the diaphragm casing to a point downstream of control valve.

What is a high pressure control valve?

The QB3H (electronically controlled) high pressure valve was originally designed for laser cutting with Argon , Nitrogen, Oxygen and air. The QB3H continues to be very successful in this application, but it is now used across multiple industries and processes to control high pressure with high flows in compact spaces.