Series FM double flow control valves permit free flow from the directional valve to the actuator and adjustable independent flow regulation in each return line from the actuator (meter-out). The FM2 and FM3 have a seal plate and can be inverted for meter-in applications (see installation drawing for flow direction).
FD, FC Series
Series FC, FD throttle check valves are designed for maximum flow rates. The throttle check function is located in ports A and B. Meter-in or meter-out functionality can be selected by model code.
ZRD Series
Series ZRD throttle check valves are designed for maximum flow rates. The throttle check function can be located in port A or B as well as in A + B. Meter-in or meter-out functionality can be selected by model code. A low flow / high resolution version in NFPA 03 / NG6 for sensitive shifting time adjustment of pilot operated directional control valves is available on request.