Jiangsu Huafilter Hydraulic Industry Co., Ltd.
Jiangsu Huafilter Hydraulic Industry Co., Ltd.
Products
Proportional Pressure Reducing Valve 3DREP 6A
  • Proportional Pressure Reducing Valve 3DREP 6AProportional Pressure Reducing Valve 3DREP 6A
  • Proportional Pressure Reducing Valve 3DREP 6AProportional Pressure Reducing Valve 3DREP 6A
  • Proportional Pressure Reducing Valve 3DREP 6AProportional Pressure Reducing Valve 3DREP 6A

Proportional Pressure Reducing Valve 3DREP 6A

Huafilter deals the export of Huade brand hydraulic proportional pressure valves. The three-way proportional pressure reducing valve 3DREP 6A plays an important role in the industrial field, especially in the production equipment of the petroleum, chemical, pharmaceutical and other industries. Huade Hydraulic has more than 45 years of experience in hydraulic product manufacturing, and has introduced Rexroth's advanced technology and more than 750 advanced production equipment from all over the world.

The three-way proportional pressure reducing valve 3DREP 6A can accurately adjust the output pressure according to the changes in the input signal to meet the pressure requirements in the production process. At the same time, the stable performance of 3DREP 6A also ensures the continuity and safety of the production process.


Product parameter of Proportional Pressure Reducing Valve 3DREP 6A

Hydraulic
Operating pressure (MPa) Port P 10,if excess 10,then installate the valve,type ZDR6DP..-30B/...in input port
Port T 3
Max.flow (L/min) 15(∆p=5MPa)
Degree of contamination (um) Filter recommendation with a minimum retention rate of β10≥ 75
Hysteresis (%) ≤3
Repeatability accuracy (%) ≤1
Response sensitivity (%) ≤1
Reversal span (%) ≤1
Pressure fluid Mineral oil(for NBR seal),Phosphate ester (for FPM seal)
Viscosity range (mm2/s) 2.8 to 380
Pressure fluid temperature range (°C) -20 to +70
Installation optional, preferably horizontal
Weight (kg) Type C:2.6;type A.B:1.5

Electrical, solenoid
Supply voltage DC24V
Nominal current per solenoid (A) 0.8
Max.current per solenoid (A) ≤0.02
Solenoid coil resistance (Ω) Cold value at 20°C 19.5
Max. warm value 28.8
Working state continuous
Condition temperature (°C) ~+50
Coil temperature (°C) ~+150
Protection to DIN40 050 IP65
Electrical connections 3DREP with component plug to DIN43650-AM2 plug-in connector to DIN 43 650-AF2/Pg11
3DREPE with component plug to E DIN43563-AM6-3 plug-in connector E DIN43563-BF6-3/Pg11

Product Feature And Application of Proportional Pressure Reducing Valve 3DREP 6A

Features:

▶Directly controlled proportional valves for the control of the pressure and direction of a flow

▶Actuated via proportional solenoids with central thread and removable coil

▶Spring centred control spool

Application:

Three-way proportional pressure reducing valve 3DREP 6A is widely used in industrial fields, mobile mechanical hydraulic systems, workbenches and other high-end equipment.

Function and Valve Particularities of Proportional Pressure Reducing Valve 3DREP 6A

The 3-way pressure reducing valve type 3DREP 6. is directly actuated by proportional solenoids. They convert an electrical input signal into a proportional pressure output signal.

The proportional solenoids are controlable wet pin DC solenoids with central thread and removable coil. The solenoids are controlled optionally via external control electronics.

Design:

The valve mainly comprises of:


  • Housing (3) with mounting surface
  • Control spool (5) and(6) and (4)
  • Solenoids(1 and 2 ) with control thread


Function:

With the solenoids (1 and 2) de-energised the control spool (5) is held in its centre position by compression springs.

The control spool (2) is directly actuated when one of the solenoids is energised.

E.g.  by energising solenoid "a" (1)

→The pressure measuring spool (5) and control spool(4) move to the right in proportion to the electrical input signal.

→The connection from P to B and A to T is via orifice form cross-sections with progressive flow characteristics

De-energisation of the solenoid (1)

→The control spool (4) is returned to its centre position by the compression springs

In the middle position the connections A and B to T are open, therefore, the pressure fluid can freely flow to tank. An optional hand overrides makes is possible to move the control spool (4) without energising the solenoid.

Attention!

Unintended use of the hand override can cause uncontrolled machine movement!

Symbols of Proportional Pressure Reducing Valve 3DREP 6A


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