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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 DZCE* are pressure reducing proportional valves with mounting interface in compliance with ISO 4401 (CETOP RP121H) standards. These valves, besides reducing the pressure from line P to user A, allow the flow to return from user A to discharge T when a pressure greater than the set value is generated in the downstream circuit (user A): a typical case of hydraulic counterweight or load balancing.
The pressure can be modulated continuously in proportion to the current supplied to the solenoid. They can be controlled directly by a current control supply unit or by means of the electronic control units to exploit valve performance to the full. They are available in CETOP P05, ISO 4401-05 (CETOP R05), ISO 4401-07 (CETOP 07) and ISO 4401-08 (CETOP 08) sizes. Every size can be supplied with several controlled flow rates, up to 500 l/min.
| Description | DZCE5 DZCE5R | DZCE7 | DZCE8 |
|---|---|---|---|
| Maximum Operating Pressure | 350 Bar | 350 Bar | 350 Bar |
| Maximum Flow | 150 L/Min | 300 L/Min | 500 L/Min |
| Hysteresis (with PWM 200 HZ) | <4 % of p nom | <4 % of p nom | <4 % of p nom |
| Repeatability | < 2 % of P nom | < 2 % of P nom | < 2 % of P nom |
| Ambient Temperature Range | -20 / 60°C | -20 / 50°C | -20 / 60°C |
| Fluid Temperature Range | - 20 / 80°C | - 20 / 80°C | - 20 / 80°C |
| Fluid Viscosity Range | 10 ÷ 400 cSt | 10 ÷ 400 cSt | 10 ÷ 400 cSt |
| Fluid Contamination Degree | According to ISO 4406:1999 Class 18/16/13 | According to ISO 4406:1999 Class 18/16/13 | According to ISO 4406:1999 Class 18/16/13 |
| Recommended Viscosity | 25 cSt | 25 cSt | 25 cSt |
| Mass | 7 Kg | 9.2 Kg | 15.3 Kg |
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