Electro-Proportional Valves — Flow Control

SP08–22 — Poppet-Type, 2-Way, Normally Closed, Bi-Directional
  Selection guide - similar valves.
  PDF file of this page.
  STP file for SP08-22.
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SP08-22 Valve

SYMBOL:
SP08-22 Valve symbol

 

DESCRIPTION
A solenoid-operated, 2-way, normally closed, bi-directional, poppet-type, proportional,
screw-in hydraulic cartridge valve for low-leakage blocking and load-holding applications.

OPERATION
When de-energized, the SP08-22 acts as a check valve, allowing flow from 1 to 2, while
blocking flow from 2 to 1. When energized, the poppet lifts to open the 2 to 1 flow path.
Flow is proportional to current applied to the coil. The reverse-flow check allows unrestricted
flow from 1 to 2 when the valve is energized, but this flow is not proportional to the current.
External circuitry is required to ramp current.
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_pdf.

FEATURES
• Continuous-duty rated coil.
• Hardened steel work surfaces.
• Optional waterproof E-Coils rated up to IP69K.
• Industry common cavity.
• Compact size.

RATINGS
Operating Pressure: 207 bar (3000 psi)
Flow: Up to 30.3 lpm (8 gpm)
Internal Leakage: 5 drops/minute max. at 207 bar (3000 psi)
Temperature: -40° to 100°C (-40° to 212°F) with Buna seals;
   -26° to 204°C (-15° to 400°F) with fluorocarbon seals;
   -54° to 104°C (-65° to 225°F) with polyurethane seals
Filtration: See page 9.010.1
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
Installation: No restrictions; See page 9.020.1
Cavity: VC08-2; See page 9.108.1_2w
Cavity Tool: CT08-2xx; See page 8.600.1
Seal Kit: SK08-2x-M; See page 8.650.1
Coil Nut: Part No. 7004400

RECOMMENDED ELECTRONIC CONTROLLERS
The EVDR Series controllers are recommended for use with most HydraForce
proportional valves. These newer electronic controllers are versatile, reliable, and
easily configured and customized for a wide range of applications.
See the EVDR Product Selection Guide.
For other Electronic Controllers, see page 2.001.1_pdf



 

 

PERFORMANCE:

SP08-22 Performance

 

SP08-22 Performance

DIMENSIONS:

SP08-22 Valve Dimensions

 

MATERIALS:

Cartridge: Weight: 0.10 kg (0.23 lb);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces; Buna N
O-rings and back-ups standard.

Standard Ported Body: Weight: 0.16 kg
(0.35 lb); Anodized high-strength 6061 T6
aluminum alloy, rated to 207 bar (3000 psi);
Ductile iron bodies available; dimensions
may differ. See page 8.008.1_2w.

Standard D-Coil: Weight each: 0.11 kg
(0.25 lb); Unitized thermoplastic
encapsulated, Class H high temperature
magnetwire. See page 3.200.1_08-size.

E-Coil: Weight: 0.14 kg (0.3 lb); Perfect
wound, fully encapsulated with rugged
external metal shell; Rated up to IP69K
with integral connectors.
See page 3.400.1_08-size.

 

ORDERING CHART:

SP08-22 Ordering Chart