DASV08-21 Poppet, 2-Way, Normally Open

DESCRIPTION

A solenoid-operated, 2-way, piloted, poppet-type, normally open, screw-in, hydraulic cartridge valve designed for low leakage in load-holding applications.

OPERATION

When de-energized ，DASV08-21 allows flow from 2 to 1 .Flow from 1 to 2 is severely restricted in this mode. If the 2 to 1 path is required see model DASV08-23, When energized, the valve’s poppet closes on its seat, blocking flow from 2 to 1 .In this mode the cartridge will allow 1 to 2 flow after overcoming the solenoid force(requires 3.4 to 10.3 bar / 50 to 150 psi). Operation of Manual Override Option: To override, push and hold override button.

FEATURES

● Continuous-duty rated coil.
● Hardened seat for long life and low leakage.
● Optional coil voltages and terminations.
● Efficient wet-armature construction.
● Cartridges are voltage interchangeable.
● Unitized, molded coil design.
● Manual OverrideOptions.
● Optional waterproof E-Coils rated up to IP69K.
● Industry common cavity.
● Compact size.

RATINGS

Operating Pressure: 207 bar (3000 psi)
Flow: See Performance Chart
Internal Leakage: 0.15 cc/minute (3 drops/minute) max. at 207 bar (3000 psi)
Temperature: -40 to 120℃，with Buna N seals
Coil Duty Rating： Continuous from 85% to 115% of nominal voltage
Response Time： First indication of change of state with 100% voltage supplied at 80% of nominal flow rating:
energized： 50 msec.;de-energized：16 msec.
Initial Coil Current Draw at 20℃:
Standard Coil： 1.2 amps at 12 VDC; 0.13 amps at 115 VAC (full wave rectified).
E-Coil:  1.4 amps at 12 VDC; 0.7 amps at 24 VDC
Minimum Pull-in Voltage:： 85% of nominal at 207 bar (3000 psi)
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 ssu)

Cavity：