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A proportional solenoid-operated, 2-way, poppet-type, normally open, screw-in hydraulic cartridge valve for low-leakage blocking and load-holding applications
When de-energized, the SP16-21 allows flow from 2 to 1. When the valve is partially energized, the valve begins to throttle the flow from 2 to 1. When fully energized, the poppet closes on the seat, blocking flow from 2 to 1. Flow from 1 to 2 will occur when hydraulic pressure exceeds the solenoid force.
Note: If low voltage is expected on the machine, 12 or 24 volt systems will require the use of 10 volt or 20 volt coils respectively. See “SP Valves and Coil Operating Parameters,” page 2.002.1.
• Industry-common cavity.
• Efficient wet-armature construction.
• Continuous-duty rated coils.
• Optional waterproof E-Coils rated up to IP69K.
• Manual override option.
Operating Pressure: 250 bar (3625 psi)
Flow: 265 lpm (70 gpm); see performance charts
Max. Internal Leakage: 7 drops per minute at 207 bar (3000 psi)
Dither/Pulse Frequency: 100 to 400 Hz
Hysteresis: Less than 10% up to 70% of I-max.; Less than 5% above 70% of I-max.
Maximum Control Current: 1.2 amp required to achieve rated flow
Threshold Current: 0.3 A; see performance charts
Temperature: -40 to 120°C with standard Buna seals
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Filtration: See page 9.010.1;
Installation: No Restrictions. See page 9.020.1
Cavity: VC16-2; See page 9.116.1;
Cavity Tool: CT16-2XX; See page 8.600.1
Seal Kit: SK16-2X-T; See page 8.650.1
Coil Nut: Part No. 7004400
ELECTRO-PROPORTIONAL VALVES—FLOW CONTROL
