Direct-operated solenoid valve SF08-28

2-waynormally closedhydraulic

SOLENOID CARTRIDGE VALVE POPPET, 2 PORT, NORMALLY CLOSED A solenoid-operated, 2 port, normally closed, direct-acting, poppet-type, screw in hydraulic cartridge valve, designed for low-leakage blocking and load-holding applications to operate as a bidirectional blocking valve in low flow circuits. Operation When de-energized, the SF08-28 blocks flow in both directions. When energized, the poppet shifts to open the bidirectional flow path. Manual Override Operation Emergency use only! Not for continuous duty operation. to activate the "T" manual override: turn the knurled adjustment knob clockwise until the valve opens. To deactivate: turn the adjustment knob counterclockwise until it stops. To activate the "P" and "K" manual override: push until the valve opens. To deactivate: remove the applied force from the manual override. Features Flow rating 11.3 lpm (3 gpm), peak flow up to 39 lpm (10.4 gpm) Pushbutton (P), Knob (K), and Threaded (T) manual override options Tested to 2 million cycles Less than 5 drops/min leakage maintained after endurance test Fluids Compatible Fluids: Mineral based or synthetic hydraulic fluid with lubricating properties Fluid Viscosity Range: 7.4 to 420 cSt Maximum Operating Contamination Level: 18/16/13 per ISO 4406 Corrosion Protection: 12 hr salt spray per ASTM B 633 Unit Weight: 0.18 kg (0.39 lb) Internal Wetted Surface Area: 85 cm² (18.6 in²) Cavity: VC08-2 08-size-2-way Cavities Cartridge Installation Torque: 25.8 to 28.6 N-m (19 to 21 ft-lb) Coil Nut Torque: 5.4 to 6.8 N-m (4 to 5 ft-lb) Orientation Restrictions: None