2FRM6 2-way Flow Control Valve

Product Detail

Flow control valve, type 2FRM6 and rectifier plate, type Z4S6

Flow control valve of type 2FRM is two-way flow control valve, used for maintaining a constant flow and is independent of pressure and temperature. It consists of housing(1), knob rotary(2), orifice(3), pressure compensator(4), optional check valve(9).

Flow control valve 2FRM6B-L3X/~M
Flow from A to B is throttled at throttle channel (5). Throttle cross-section is varied by turning the knob rotary (2). To avoid effects of pressure at port B on constant flow, a compensator (4) is fitted. Spring (6) separately compress the compensator (4) and orifice (3) tightly.
Spring (6) compresses the compensator (4) tightly to maintain it open when no fluid flows through the valve. Once the fluid flows across the valve, the pressure in port A applies a force to pressure compensator (4) via orifice (7). The pressure compensator (4) moves into the compensating position until the forces is balanced. If the pressure in port A rises, the compensator (4) moves to its closing direction until force is balanced again. Due to the compensator (4) continuous action, a constant flow is obtained.

2FRM6A-L3X/~R
The function of this valve is basically the same as that of valve type 2FRM6B-L3X/~R. However, pressure compensator (4) of this type of valve is connected with port P (11) so that pressure compensator (4) can be closed by external pressure. Any pressure in port P via orifice (10) can make the compensator (4) closed against the force of compression spring (6). When the directional valve (12) acts, fluid flows from P to B, control is achieved as type 2FRM6B.
This flow control valve with external pressure compensator which can be closed only works as controlling the inlet flow.



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