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  • Duplomatic PRE(D)*K - Explosion-Proof pressure Relief Proportional Valves Mounting Dimensions
  • Duplomatic PRE(D)*K - Explosion-Proof pressure Relief Proportional Valves Mounting Dimensions
  • Duplomatic PRE(D)*K - Explosion-Proof pressure Relief Proportional Valves Mounting Dimensions
  • Duplomatic PRE(D)*K - Explosion-Proof pressure Relief Proportional Valves Ordering
  • Duplomatic PRE(D)*K - Explosion-Proof pressure Relief Proportional Valves Mounting Dimensions

Duplomatic PRE(D)*K – Explosion-Proof Pressure Relief Proportional Valves

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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 explosion-proof pressure relief proportional valves 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 statement of conformity to the up mentioned standards is always supplied with the valve.

Upon request, PRE(D)*Kvalves can be 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).

Pressure can be modulated continuously in proportion to the current supplied to the solenoid.

These valves can be controlled directly by a current control supply unit or by means of the relevant electronic control units to exploit valve performance to the full.

Product Specification

Description PRED3K PRE3K PRE10K PRE25K PRE32K
Maximum Operating Pressure – P Port 350 Bar 350 Bar 350 Bar 350 Bar 350 Bar
Maximum Operating Pressure – T Port 2 Bar 2 Bar 2 Bar 2 Bar 2 Bar
Minimum Flow 2 l/min
Nominal Flow 1 l/min 10 l/min
Maximum Flow 3 l/min 40 l/min 200 l/min 400 l/min 500 l/min
Hysteresis (with PWM 200 HZ) <5 % of p nom <5 % of p nom <5 % of p nom <5 % of p nom <5 % of p nom
Repeatability <+1.5% of p nom <+1.5% of p nom <+1.5% of p nom <+1.5% of p nom <+1.5% of p nom
Fluid Viscosity Range 10 ÷ 400 cSt 10 ÷ 400 cSt 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 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 25 cSt 25 cSt
Single Solenoid Valve Mass 1.8 kg 3.8 kg 5.3 kg 6.1 kg 8.3 kg

Duplomatic – PRE(D)*K – Explosion-Proof Pressure Relief Proportional Valves – Data Sheet

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