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2-2 way descaling valves XY controlled DN16 DN32 PN420

  • Operating pressure: 420bar
  • Nominal size(s): DN16, 32
  • Ways: 2/2

Features

  • Hydraulically actuated directional seat valve controlling liquid media
  • Passively controllable 2/2-way valve with 1-stage control logic
  • Valve seat sleeve equipped with a low-friction seal thus, the valve piston moves easily and without inner leakages
  • Valve piston and seat are coupled and close hydraulically „leak-free“
  • The valve is actuated via a 3/2-way pilot valve

Function 2/2-way valve

The control pressure (X) for switching the valve is tapped internally from the system pressure in port A. The valve piston (2) guided within the Valve seat sleeve (1) is pressed into the valve seat (3) by the hydraulic power and the spring force generated by the control pressure (X) via the pilot valve (4) on the control surface (5). Thus, the lines (A, B) are separated.

By switching the pilot valve (4), the control surface (5) is depressurized and the hydraulic power along the lines A can be used to lift the valve piston (2) off the valve seat (3), i.e. as soon as the hydraulic pressure is applied to the lines A, the valve piston (2) moves into the opened position up to the mechanical end position. Thus, the lines (A, B) are connected.

The pilot volume in the control room is discharged to the Y line via the Y connection of the pilot valve (4). Depending on the function of the pilot valve (4), the basic valve position can be specified normally closed (NC) or normally open (NO).

 

 

Technical data

measured with HFA medium 97/3%, at 20°C

General

Weightsiehe Bestellinformationen
Installation positionany
Ambient temperature-10 to 50°C (hydraulic fl uids, heed standard requirements)
Material Valve parts
Material Seals		Stainless steel
NBR, PTFE, PUR

Hydraulic

Hydraulic pressure connector A, B≥ 20 bar, ≤ 420 bar
Hydraulic pressure connector Y≤ 5 bar
Direction of flowA->B
Pressure fluid
- Medium - Temperature range
- Medium - Quality
- min. filter fineness connection A, B		Water, HFA
5 to 40°C
see Hauhinco media requirement, water, HFA
Filter fi neness 25µm
Use of other pressure fl uids on request.

Electric

Magnet - Voltage
- Power consumption
- Operating time
- Degree of protection acc. to EN60529
- max. switching rate
24 VDC, other voltages on request
see Order information
100% OT
IP65
1Hz

Included in the scope of supply

Mounting screws for the 2/2-way valve assembly and the pilot valve

Versions

DescriptionNominal sizeWeightMax. pressureBasic positionVoltageNoteArticle number
2/2 way descaling valve DN16DN1610,0kg420NC24VDCPilot valve: 6545769-
2/2 way descaling valve DN16DN1610,0kg420NO24VDCPilot valve: 6545777-
2/2 way descaling valve DN32DN3228,0kg420NC24VDCPilot valve: 65457696600965
2/2 way descaling valve DN32DN3228,0kg420NO24VDCPilot valve: 65457776600965
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Hauhinco Maschinenfabrik GmbH & Co. KG
Beisenbruchstraße 10
45549 Sprockhövel
Germany

Phone.: +49 2324 705-0
Fax: +49 2324 705-222 
sales@hauhinco.de

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With our decades of know-how in water hydraulics, we at Hauhinco have core competences in the mining sector and in a number of industrial applications.

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