Electro-Proportional Valves — Flow Control HyPerformance™

HSP16-21 — Poppet-Type, 2-Way, Normally Open, High Pressure
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HSP16-21 Valve

U.S. Patent 8,253,063

HSP16-21 Valve symbol


A proportional solenoid-operated, 2-way, piloted, normally open, poppet-type, screw-in hydraulic
cartridge valve for low-leakage blocking in high pressure load-holding applications requiring low
internal leakage.

When de-energized, the HSP16-21 allows flow proportional to the applied current from 2 to 1 while
severely restricting flow from 1 to 2. When energized, the valve blocks flow from ports 2 to 1. In this
mode, the cartridge will allow flow from 1 to 2 after overcoming the spring and actuator forces.
For normal operation (de-energized) the manual override button must be fully rotated counter-clockwise.

• Industry-common cavity.
• Efficient wet-armature construction.
• Continuous-duty rated coils.
• Optional waterproof E-Coils rated up to IP69K.
• 1000-hour salt-spray rated solenoid tubes.
• 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% Cycle Life: 420 bar (6090 psi)
Proof Pressure: 690 bar (10000 psi)
Burst Pressure: 1380 bar (20000 psi)
Flow: 76 lpm (20 gpm) with 5.5 bar (80 psi) compensation; 95 lpm (25 gpm) with
  11.0 bar (160 psi) compensation
Max. Internal Leakage: 7 drops/minute at 350 bar (5075 psi) at port 2
Cycle Life: One million cycles
Temperature: -54° to 107°C (-65° to 225°F) with Urethane 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: HVC16-2; See page 9.116.1_2w
Cavity Tool: HCT16-2xx; See page 8.600.1
Seal Kit: SK16-2U-0; See page 8.650.1
Coil Nut: Part No. 7004400

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




HSP16-21 Performance charts



HSP16-21 Valve Dimensions


Cartridge: Weight: 0.44 kg (0.97 lb);
(with manual override) 0.45 kg (0.99 lb); Steel
with hardened work surfaces. Zinc-plated
exposed surfaces; Urethane O-rings with no
back-up standard.

Ported Body: Weight: 3.96 kg (8.75 lb);
H-Series ductile iron standard. Rated to
345 bar (5000 psi). See page 8.016_2w.

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



HSP16-21 Ordering Coil Info