Hydraforce PD12-44 Piloted hydraulic directional spool type Cartridge Valve repl

  
Hydraforce PD12-44-0-N-170 Piloted hydraulic directional spool type Cartridge Valve Replacement. In neutral position the valve blocks flow from port 2 to 3. On remote pilot signal at port 1, the valve's spool shifts to allow flow from port 2 to 3 bidirectionally. The spring chamber is vented to port 4 which is internally o-ring sealed from the cartridge flow paths. Pressure on port 4 will directly (1:1) affect the pilot pressure required and must be added to the bias spring value. Operating fluid temperature: -40 to 120 °C (-40 to 248 °F). Maximum internal leakage: 245 ml/min (15 in³/min) At 207 bar (3000 psi). 0 lpm (0 gpm) From port 1 and 2 with sealed spool. Steel with work surfaces hardened. External surfaces are zinc plated. Cavity: VC12-4, 12 size 4 way cavity. 44.7 to 50.2 N-M (33 to 37 ft-lb).

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