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Duplomatic ZDE3K - Ex-Proof Pressure Reducing Proportional Valves

Duplomatic
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Duplomatic Oleodinamica designs and produces a complete range of hydraulic components that are suitable for all application sectors of both industrial and mobile fields.

The Duplomatic ZDE3K valves are direct operated pressure reducing proportional valves with ISO 4401-03 (CETOP RP121H) mounting surface. They are in compliance with ATEX 94/9/EC standards and are suitable for the use in potentially explosive atmospheres, that fall within the ATEX II 2GD either for gas or for dust classification and I M2, for mines. The valves are used to reduce pressure in the secondary circuit branches thus ensuring stability of controlled pressure in the event of variations of the flow rate through the valve.

With the valves the statement of conformity to the upmentioned standards is always supplied. The ZDE3K valves are supplied with a finishing surface treatment (zinc-nickel) suitable to ensure a salt spray resistance up to 600 h (test operated according to UNI EN ISO 9227 standards and test evaluation operated according to UNI EN ISO 10289 standards).


Description Units
Operating Pressure Range: 30 ÷ 100 bar
Pressure allowed on T Port 0÷ 30 bar
Controlled Pressure 23 bar
Maximum Flow 15 l/min
Step Response 30 ms
Hysteresis (with PWM 200 Hz) <4% of p nom
Repeatability < 1% of p nom
Fluid Viscosity Range 10 ÷ 400 cSt
Fluid Contamination Degree According to ISO 4406:1999 class 18/16/13
Recommended Viscosity 25 cSt
Single Solenoid Valve Mass 1.9 kg
Double Solenoid Valve Mass 2.8 kg

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Vat Reg Number: 846644204 Company Registration Number: 5230249

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