Duplomatic Proportional Flow Control Valve, Compensated, Type QDE*

Brand :
Duplomatic

Proportional flow control valves, compensated

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Description
Specifications
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Description

The QDE3 and QDE5 are compensated proportional flow control valves, with pressure compensation, for subplate mounting. These valves work in 2 or 3 ways, depending on how the interface is made on the mounting surface. They are used for flow control in branches of a hydraulic circuit or for the speed control of hydraulic cylinders. They are available in two sizes, in 5 flow adjustment ranges of up to 80 l/min. They can be controlled directly by a current-controlled power supply, or by an electronic card, to be order separately.

Key Features

• Pressure-compensated 3-port design • Wide flow rate range up to 80 l/min • Spring settings of 4 and 8 bar • Multiple mounting interface options

Downloads

Datasheet_QDE_.pdf

pdf

Specifications

Maximum operating pressure
250 bar
Controlled Flow (QB)
14, 20, 30, 40, 80 l/min
Max Input Flow (3-port)
40, 50, 90 l/min
Spring Setting in Compensator
4, 8 bar
Minimum Pressure Drop A > B
10, 22 bar
Hysteresis
< 6% of Q_max
Repeatability
< ±1.5% or ±2% of Q_max
Ambient temperature range
-20°C to +60°C
Fluid Temperature Range
-20°C to +80°C
Fluid Viscosity Range
10 to 400 cSt
Contamination Degree
ISO 4406:1999 class 18/16/13
Recommended viscosity
25 cSt
Mass
1.4 / 4.4 kg
Nominal Voltage
12 / 24 V DC
Current Rating
0.86 / 1.88 / 1.6 / 2.8 A
Protection Class
IP65 / IP67 / IP68 / IP69K
Mounting Interface
ISO 6263-03 / ISO 4401-05
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