Walvoil DPX sectional valve

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Walvoil DPX sectional valve

Walvoil DPX sectional valve

Walvoil DPX open/closed center post-pressure compensated sectional valves.

Designed specifically for mobile applications
Provides exceptional controllability, efficiency and flexibility for applications requiring up to 160 l/min.
Adds to the standard Load Sensing valve the benefit of Flow Sharing technology.
The patented compensator maintains the margin pressure ad a costant pressure drops across the spool metering area.

Technical Specifications

Nominal flow rating	Inlet port eith compensator, stand-by (margin pressure) 14 bar	120 l/min
Working ports, stand-by (margin pressure) 14 bar	90 l/min
Max pressure	Inlet port P	300 bar (std)380 bar (HP)
Working ports A and B	300 bar (std)420 bar (HP)
Back pressure (max) on outlet port T	With mechanical devices	10 bar
With hydraulic, pneumatic, electric deviced	30 bar
Standard internal leakage A(B)→T	∆p=100 bar	max 9 cm3/min
With port valves, ∆p=100 bar	max 14 cm3/min
Fluid		Mineral oil
Fluid temperature range	With seals NBR	from -20° to 80°C
With seals FPM	from -20° to 100°C
Viscosity	Operating range	from 15 to 75 mm2/s
Min	12 mm2/s
Max	400 mm2/s
Contamination level		-/18/15 - ISO 4406
Environmental temperature for working conditions	With mechanical devices	from -40° to 60°C
With hydraulic, pneumatic devices	from -30° to 60°C
With electric, electrohydraulic devices	from -20° to 50°C

Walvoil DPX open/closed center post-pressure compensated sectional valves.

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