Electro-Proportional Valves — Flow Control HyPerformance™

HPV12-31 — Spool-Type, 3-Port, Normally Open, Control Valve
  Selection guide - similar valves.
  PDF file of this page.
  STP file for HPV12-31.
  Request a quote.

HPV12-31 Valve
U.S. Patent 8,253,063

HPV12-31 Valve symbol


A high pressure, solenoid-operated, electrically-variable, three-port, pressure-compensated,
spool-type, normally open when de-energized, proportional flow control valve. It can be used as a priority-type flow regulator with pressure-compensated, regulated and bypass flow. It can also be
used as a restrictive-type 2-way, pressure-compensated flow regulator when the bypass line
(port 2) is blocked.

With inlet flow at port 1, the HPV12-31 will regulate priority flow out of port 3 regardless of system
working pressure, with flow rate inversely proportional to current applied to the solenoid. Excess flow will bypass out of port 2 and can be used for auxiliary function control.
Note: Avoid dead-heading of priority line by external valving to prevent blocking of bypass line. In
restrictive mode applications, bypass port 2 has to be blocked. Flow rate out of port 3 remains
inversely proportional to current applied to the solenoid regardless of load (pressure) applied to port 3.

• Excellent linearity and hysteresis.
• Hardened spool and cage for long life.
• Compensated flow control.
• Efficient wet-armature construction.
• Patented high-strength solenoid tube.
• 2 or 3-ported operation.
• Uses more compact 10-size coil.
• Coil waterproofing standard.
• All HyPerformance™ products are tested to NFPA specification T2.6.1.
and are tested at a verification level of 90% and an assurance of 99%.

Operating Pressure: 350 bar (5075 psi); 10% life cycle 420 bar (6090 psi)
   Note: All HyPerformance™ products are tested for 900K cycles at 350 bar
   and 100K cycles at 420 bar.
Proof Pressure: 690 bar (10,000 psi)
Burst Pressure: 1380 bar (20,000 psi)
Flow: 76 lpm (20 gpm); See Performance Chart
Internal Leakage: 380 ml/min. (0.10 gpm) at port 3 at 1200 mAcurrent with 350 bar (5075 psi)
   at port 1 (port 2 blocked)
Electrical Parameters (with size 10 E-Series coil):
Coil Voltage
Coil Inductance
Threshold Current
Max. Control Current
 12 VDC
24 VDC
Temperature: -54° to 107°C (-65° to 225°F) with PPDI Urethane seals
Hysteresis: ± 1.9 lpm (0.50 gpm) maximum
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: HVC12-3; See page 9.112.1_3w
Cavity Tool: HCT12-3x-xx; See page 8.600.1
Seal Kit: HSK12-3X-0; See page 8.650.1
Coil Nut: Part No. 7004420

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




HPV12-31 Performance charts



HPV12-31 Valve Dimensions



Cartridge: Weight (without coil and nut):
0.32 kg (0.71 lb) Steel with hardened work surfaces. PPDI urethane seals without back-up rings standard.

Ported Body: Weight: 4.0 kg (8.93 lb)
H-Series ductile iron standard. Rated to
345 bar (5000 psi). See page 8.012.1_3w.

E-Coil: Weight: 0.41 kg (0.9 lb) Fully encapsulated with rugged external metal
shell. IP69K rated. See page 3.400.1_10-size.



HPV12-31 Ordering 10-size E-Coil