Electro-Proportional Valves — Flow Control HyPerformance™

HSPEC12-34 — Proportional Flow Control Vave
with Integral Compensator
  Features and Benefits
  Selection guide - similar valves.
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HSPEC12-34 Valve

SYMBOL:HSPEC12-34 Valve symbol


A high pressure, proportional, solenoid-operated, poppet-type, restrictive type, pressure compensated,
normally closed, flow control, screw-in hydraulic cartridge valve with built-in damping and load-holding
features intended for use in gravity-lowering circuits.

With inlet at port 3, the HSPEC12-34 will regulate flow out of port 2 regardless of load pressure with
flow rate proportional to current applied to the solenoid. Port 1 must be connected to port 3 to provide
load-sense function for the compensator. When de-energized, the valve blocks flow from port 3 to
port 2 while allowing free flow in the opposite direction..

• Industry-common cavity.
• Continuous-duty rated coils.
• Reduced manifold space claim.
• Efficient wet-armature construction.
• Optional waterproof E-Coils rated up to IP69K.
• Patented high-strength solenoid tube
• All HyPerformance™ valves are tested to the rigorous standards of NFPA specification T2.6.1 and
  are tested at a verfication level of 90% and an assurance of 99%

Operating Pressure: 350 bar (5075 psi); 10% cycle life; 420 bar (6090 psi)
   Note: All HyPerformance™ products are tested for 900K cycles at 350 bar and 100K at 420 bar.
Proof Pressure: 690 bar (10000 psi)
Burst Pressure: 1241 bar (18000 psi)
Flow: 60 lpm (16 gpm)
Internal Leakage: Port 3 to port 2: 8 drops/minute with 350 bar (5075 psi) at port 3
Temperature: -54° to 107°C (-65° to 225° F) with urethane seals
Electrical Parameters (with size 10 E-Series coil):
 Coil Voltage
Threshold Current
Max. Control Current
 12 VDC
200 - 500 mA
24 VDC
100 - 250 mA
Hysteresis: + 9.5 lpm (2.5 gpm)
Dither/PMW Frequency Range: 100 to 200 Hz
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: HCT12-3; See page 8.600.1
Seal Kit: HSK12-3U-0; See page 8.650.1




HSPEC12-34 Performance graph 1


HSPEC12-34 Performance graph 1


HSPEC12-34 Valve Dimensions


Cartridge: Weight: (without coil and nut):
0.32 kg (0.70 lb); With Manual Override:
0.33 kg (0.72 lb) Steel with hardened work surfaces. Zinc-plated exposed surfaces. PPDI
urethane seals without back-up rings standard.

E-Coil: Weight: 0.41 kg (0.9 lb); Fully encapsulated with rugged external metal shell. Rated up to IP69K with integral connectors.
See page 3.400.1_10-size.

Ported Body: Weight: 4.05 kg (8.93 lb)
H-series ductile iron standard. Rated to
345 bar (5000 psi). See page 8.012.1_3w.



HSPEC12-34 Ordering Chart