Model 4370 is now replaced by US manufactured MK70, diaphragm operated Control Valve. The valve is metal/metal seated (ANSI class IV) and utilises the same sliding gate seats found in Jordan’s range of Pressure Regulators (4350/4360) and Temperature Control Valves (4380).
It is available in sizes ½”→ 2″ (Cv 2.5 to 30). The standard valve has threaded (bspt) or NPT ends but can be flanged on request. The valve is actioned by a multi-spring pneumatic actuator and can be used for on/off or modulating for liquids, gases, chemicals and steam.
Flow is controlled by the movement of the gate/disc which moves in response to a 3-15 psi pneumatic signal received from a controller. Where the signal is in milliamps, an I/P transducer can be fitted (i.e. converts a 4-20mA signal to 3-15 psi) or, for even more precise control, the pneumatic actuator can be fitted with a pneumatic or I/P positioner.
* Options: MK701 Cv 50 High Flow version, equal % seats, low flow seats for all sizes, side or top mounted positioner, flanges to AS or Ansi. Many more options, higher pressure/temps etc for US made Mk70 (see download), flanged MK711