SYMBOL:
 |
DESCRIPTION
A spool-type, screw-in, cartridge-style, hydraulic directional element, with multifunction potential when used with other directional, pressure, or flow control devices.
OPERATION
The EV20-S34 is a spring-biased blocking valve which will shift to allow full flow from 1 to 2 only when port 3 is vented to create a pressure drop across the internal orifice which exceeds the pressure of the bias spring force. EV20-S34 is a vent-to-open directional valve.
FEATURES
• Multiple function/application potential.
• Smooth shift transition.
• Low pressure drop.
• Industry common cavity.
RATINGS
Max. Operating Pressure: Cartridge Only: Ports 1 & 2: 345 bar (5000 psi); Port 3: 320 bar (4600 psi);
Polyurethane seals are recommended for 4600 psi or higher operation;
Aluminum bodies for this product are rated for 207 bar (3000 psi)
Flow: Up to 379 lpm (100 gpm)
Internal Leakage: 164 cc/minute (10 cu. in./minute) max. at 320 bar (4600 psi)
Operating Temperature: -40° to 100°C (-40° to 212°F) with Buna seals;
-26° to 204°C (-15° to 400°F) with Fluorocarbon seals;
-54 to 104°C (-65 to 225°F) with Polyurethane 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: VC20-S3; See page 9.120.1_3w
Cavity Tool: CT20-S3xx; See page 8.600.1
Seal Kit: SK20-S3x-MM; See page 8.650.1 |
