DHZO are proportional valves, direct operated, which provide both directional and non-compensated flow control according to the electrical signals.

They operate i assocoation with electronic drivers, which supply the proportional valves with correct current signal to align valve regulation to the reference signal supplied to the electronic driver.

These valves have a 4-way spool sliding into a 5-chambers and directly operated by ZO solenoids.

To compensate flow variartions due to pressure variations, modular pressure compensators are available to keep a contant pressure drop across the valve.

The solenoid coils are fully plastic encapsulated (insulation class H) and valves have antivibration, antishock and weather-proof features.

Versions: DHZOA = without integral transducer. DHZOAE = as A plus integral transducer.

Spool types: L = Linear S = Progressive

Max. flow mentioned at 30 bar differential pressure across the valve.

Max. working pressure: Ports P, A and B: 350 bar Port T: 160 bar (250 bar with external drain, port /Y).

Recommended viscosity: ISO VG 15 - 100 (at 40°C).

Temperature range: -20°C to +60°C. with standard seals. Up to +80°C when /PE-seals are selected).

Fluid contamination class: ISO 18/15 with in-line filter nom. 10my and ß10 75).

On request available with sela for water-glycol (/WG) and phosphate esters (/PE).