DIRECTIONAL VALVES
EV58-34 Vented Directional Element
DESCRIPTION
A spool-type, screw-in, cartridge-style, hydraulic directional element, with multi-
function potential when used with other directional, pressure, or fl ow control valves.
OPERATION
The EV58-34 is a spring-biased blocking valve which will shift to allow full fl ow from
➀ to ➁ only when port ➂ is vented to create a pressure drop across the internal
orifi ce which exceeds the pressure of the bias spring value.
FEATURES
• Multiple function/application potential.
• Low pressure drop.
• Industry common cavity
• Compact size.
RATINGS
Maximum Operating Pressure: 345 bar (5000 psi) with steel or ductile housing;
207 bar (3000 psi) with aluminum housing.
Flow Rate: Up to 37.9 lpm (10 gpm)
Maximum Internal Leakage:
131 ml per minute (8 cu. in. per minute) at 207 bar (3000 psi)
229 ml per minute (14 cu. in. per minute) at 345 bar (5000 psi)
Bias Springs:
Code 10 0.7 bar (10 psi)
Code 40 2.8 bar (40 psi)
Code 80 5.5 bar (80 psi)
Code 110 7.6 bar (110 psi)
Code 150 10.3 bar (150 psi)
Temperature: -40 to 160°C
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: VC08-3; See page 9.108.1
Cavity Tool: CT08-3XX; See page 8.600.1
Seal Kit: SK08-3X-MM; See page 8.650.1
PERFORMANCE (Cartridge Only)
USASI/ISO:
SYMBOLS
4.519.1
5.2/75
6.9/100
3.4/50
1.7/25
7.6
2
15.1
4
22.7
6
30.3
8
37.9
10
PRESSURE DROP bar/psi
FLOW lpm/gpm
32 cSt/150 sus oil at 40nC
~to Fully Open
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EV58-34 - __ __ __ - __ - __ __ __ __
Cartridge: Weight: 0.11 kg. (0.25 lbs.)
Steel with hardened work surfaces.
Zinc-plated exposed surfaces.
Buna N O-rings and back-ups
standard.
Ported Body: Weight: 0.64 kg.
(1.4 lbs.) Ductile Iron (code "D")
standard, dimensions may differ
from illustration; rated to 345 bar
(5000 psi). See page 8.008.1
Ported Body: Weight: 0.36 kg.
(0.80 lbs.) Anodized high-strength
6061 T6 aluminum alloy, rated to
207 bar (3000 psi).
See page 8.008.1
DIMENSIONS
MATERIALS TO ORDER
Porting
Cartridge Only 0
SAE 6 (Ductile) 6TD
SAE 6 (Alum.) 6T
Bias Spring
10 0.7 bar (10 psi)
40 2.8 bar (40 psi)
80 5.5 bar (80 psi)
110 7.6 bar (110 psi)
150 10.3 bar (150 psi)
EV58-34
4.519.2
Seals
Buna N (Std.) N
Fluorocarbon V
Polyurethane P
Note: Aluminum body
rated for 207 bar
(3000 psi) max.
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