V90 Directional Control Valve
V90 Directional Control Valve
v90 Directional Control Valves are used for open center, power beyond and closed center systems.
In addition, work sections have special spools to minimize the effects higher flows have on spool forces.
Gresen’s Model V90 Directional Control Valve is available for parallel, tandem and combined parallel/tandem hydraulic circuit applications, up to 3500 PSI [242 bar] continuous operating pressure. Its new spool design has resulted in lighter spool actuating effort making its finger-tip touch and extra fine metering characteristics ideal for back hoe, front end loader, personnel lift, as well as heavy duty crane applications. This sensitivity also gives the design engineer a wider latitude of mechanical linkage possibilities.
Service or conversion is simple since individual sections can be added, removed or replaced in the field. Individual service or field conversion sections, rather than complete valve assemblies, can be stocked, thus reducing inventories.
Features
- Low force required to acuate spool
- Extra fine metering
- Low open center and loop pressure drops
- SAE 4-bolt split flange or SAE straight thread porting
- All ports will accommodate ORFS fittings
Specifications
| Nominal Flow Rating: | |
| V90 | Up to 100 GPM (378.5 lpm) |
| Operating Pressure (Maximum): | |
| Continuous | 3500 PSI (242 bar) |
| Exhaust Core | 500 PSI (34.5 bar) |
| Maximum Port Sizes: | |
| Inlet | SAE 24, 1 1/2″ Split Flange |
| Outlet & Power Beyond | SAE 24, 1 1/2″ Split Flange |
| Work Sections | SAE 20, 1″ Split Flange |
Description and how to order of stackable (mobile) hydraulic directional, 4-way, control valves.
Choose maximum oil flow – GPM = gallons per minute
…………………..10 to 20 GPM = V20
…………………..20 to 40 GPM = DVA20
…………………..40 to 70 GPM = DVA35
…………………..70 to 120 GPM = DVG80 or V90
Choose maximum pressure 2500 PSI, 3500 PSI, 5000 PSI
Inlet section
……..Size of ports
……..Type of ports – pipe thread, oring boss straight threat, 4 bolt flange – this will be
………………….for all sections
……..Inlet relief, or inlet relief plug (no relief)
Work sections
……..Application spool selection
…………….Cylinder type spool – a and b work ports are blocked in the neutral position.
…………….Motor type spool – a and b work ports are open to the tank passage in the neutral position
…………….Single acting cylinder spool – a port is blocked in neutral and there is no b port.
……..Spool position control
…………….3 position spring return to neutral position
…………….Detent in 3 positions
…………….Rotary friction detent variable from A position through B position
……..Spool actuators
…………….Manual lever metering
…………….Rotary lever metering
…………….Hydraulic pressure actuation
…………….-On- off
……………………-Proportional pressure metering
……………………-Solenoid controlled/pressure actuated.
…………….Air pressure actuation
……………………-On-off
……………………-Proportional pressure metering
……………………-Solenoid controlled/pressure actuated.
Outlet section
…..Standard – oil flow directed to the tank when spools are in the neutral and the A or B position
…..Power beyond – oil flow is directed to power beyond port when all spools are in the neutral position and return oil flow is directed to the tank port when the spools are in the A or B position.
71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106,107,108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120 gpm Directional Control Valve