DESCRIPTION
A high-pressure spool-type, screw-in, cartridge-style, hydraulic directional element,
with multi-function potential when used with other directional, pressure, or flow control
devices.
OPERATION
The HEV42-S34 is a spring-biased blocking valve which will shift to allow full flow
from 1 to 2 only when 3 is vented to create a pressure drop across the internal orifice
which exceeds the pressure value of the selected bias spring force.
HEV42-S34 is a vent-to-open directional element.
FEATURES
• Multiple function/application potential.
• Smooth shift transition.
• Low pressure drop.
• All HyPerformance™ products are tested to the rigorous standards
of the NFPA specification T2.6.1.
• All HyPerformance™ valves are tested at a verification level of 90%
and an assurance of 99%.
RATINGS
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.
Fatigue Rating: 2 million cycles at 420 bar
Burst Pressure: 1380 bar (20000 psi)
Flow: Up to 379 lpm (100 gpm)
Internal Leakage: 164 ml/minute (10 cu. in./minute) max. at 350 bar (5075 psi)
Operating 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: HVC42-S3; See page 9.142.1
Cavity Tool: HCT42-S3XX; See page 8.600.1
Seal Kit: SK42-S3X-X; See page 8.650.1
DIRECTIONAL VALVES
HEV42-S34 HyPerformance
TM
Vented Spool-Type
USASI/ISO:
PERFORMANCE (Cartridge Only)
SYMBOLS
4.525.1
HYDRAFORCE
.com
®
6.9/100
5.5/80
76
20
151
40
227
60
FLOW lpm/gpm
PRESSURE DROP bar/psi
303
80
379
100
➀ to ➁ (fully open)
32 cSt/150 sus oil at 40C
2.8/40
4.1/60
1.4/20
Blue rectangles are links to other catalog pages.