2FRM
The flow control valve type 2FRM is a 2-way flow control valve. It is used for maintaining a constant flow, independent of pressure and temperature. The valve basically comprises a housing, a rotary knob, orifice bush, pressure compensator and an optional check valve
Product Description
The flow from channel A to B is throttled at the throttling point. The throttle cross-section is set by turning the rotary knob. In order to keep the flow in channel B constant, indepen-dent of the pressure, a pressure compensator is fitted downstream of the throttling point.The compression spring presses the pressure compen-sator downwards against its stop and keeps the pres-sure compensator in the open position when there is no flow through the valve.
When fluid flows through the valve, the pressure acting in channel A applies a force to the pressure compensator via nozzle. The pressure compensator moves into the controlled position until the forces balance. If the pressure in channel A rises, the pressure compensator moves in the closing direction until a balance of forces is once again attained. Due to this continuous compensation of the pressure compensator, a constant flow is obtained.
In order to control a flow through the valve in both directions, a rectifier sandwich plate type Z4S 6 may be fit-ted below this flow control valve.
