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Throttle-non-return valve DN3-DN10 PN320

  • Operating pressure: 320bar
  • Nominal size(s): DN3, 6, 10

Features

  • Throttle- Non-return valve controlling liquid media
  • Opening pressure of the preload spring is approx. 1bar, other opening pressures on request
  • Valve piston and valve seat are coupled and close hydraulically leak-free
  • Valve fastening structural plate form with a Hauhinco connection diagram
  • Valve parts made of corrosion-resistant stainless steel

Function of non-return valve

The valve piston (1) is pressed into the valve seat (2) by the force of the spring (3). The control chamber (4) is connected to the A-channel via the control channels (5) within the valve piston (1). The hydraulic pressure supplied at the A-channel with the valve closed is thus also acting on the control surface (A2). This pressure keeps the valve closed and shuts off the direction of fl ow from the A- to the B-channel. Conversely, the non-return valve opens when the hydraulic pressure at the B-channel exceeds the hydraulic pressure at the A-channel and the spring force (3). In order to reach the initial opening of the closed valve, the hydraulic pressure within the B-channel must be greater by the factor of the control ratio A2/A1.

Function of throttle valve

The valve piston (7) is adjusted by turning the hexagon (8) axially via the thread. By turning it clockwise, the valve is closed pressing the valve piston (7) into the valve seat (9). The valve piston can be fi xed via the locking nut (10).

 

Technical data

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

General

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

Hydraulisc

Hydraulic pressure connector A, B≤ 320 bar
Direction of fl owA->B
Pressure fluid
- Medium - Temperature range
- Medium - Quality
- min. filter fineness connection		Water, HFA
5 to 40°C
see Hauhinco media requirement, water, HFA
Filter fineness 100μm
Pressure fluid
- Medium - Temperature range
- Medium - Quality
- Viscosity		Mineral oil HLP according to DIN51624-2
5 to 50°C
Cleanliness class -/19/16 according to ISO 4406
0,6 bis 100 mm²/s
Use of other pressure fl uids on request.

Included in the scope of supply

Mounting screws for the non-return valve

Versions

DescriptionNominal sizeWeightMax. pressureBasic positionVoltageNoteArticle number
throttle-non-return valve DN3DN31,3kg320Control ratio [A1/A2]: 1:56356656
throttle-non-return valve DN6DN61,6kg320Control ratio [A1/A2]: 1:56356451
throttle-non-return valve DN10DN101,6kg320Control ratio [A1/A2]: 1:356356907
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Контакты

Hauhinco Maschinenfabrik GmbH & Co. KG
Beisenbruchstraße 10
45549 Sprockhövel
Германия

телефон: +49 2324 705-0
телефакс: +49 2324 705-222 
sales@hauhinco.de

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