3/2 Way Piezo Valve Series P9--Hoerbiger.com
How It Works:
The central element is a Piezo-ceramic bending element which is built up of several layers, rather like a bimetallic strip. When an electrical voltage is applied, this element bends a few hundredths of a millimetre. This bending allows air to enter the piezo valve through port 1 to port 2 (Fig. 2). In the unactuated mode, the air can flow from port 2 to port 3 (Fig. 1). Depending on the voltage applied, the lesser or greater bending of the element generates an analogue pressure signal at port 2. The piezo valve can therefore be used either as a switching valve or as a proportional valve. Optimized versions for either switching or proportional use are available.
Standard Versions
- Proportional valve
- Switching valve
- - NC
Special Versions
- Special pressure ranges on request
Characteristics Pressures are quoted as gauge pressure | ||||
Characteristics | Symbol | Unit | Description | |
General Features | ||||
System | Directly actuated 3/2 way poppet valve with Piezoactor, overlaping, normally closed (NC) | |||
Housing | Plastic | |||
Mounting | Flange (see dimensional drawing) | |||
Port size | = NW 0.33 | |||
Weight | g | 6 | ||
Flow direction | On: from 1 to 2 Off: from 2 to 3 |
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Installation position | in any position | |||
Ambient |
Vmin Vmax |
°C °C |
-10 |
Note: When using below freezing point it is necessary to consult us. (-30°C to +80°C on request) |
Pneumatic Characteristics | ||||
Operating pressure | PN | bar | 1.2 (other pressures between 0 and 2.0 bar on request) | |
Nominal flow@20℃ | QN | l/min | 1.5 | |
Medium | Filtered air (5μ) * - dewpoint 10K under ambient temperature |
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Leakage@20℃ | QL | l/min | On: 0.35 max Off: 0.30 max |
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Electrical Characteristics | ||||
Operating voltage | UL | V | +/-24 DC control advice to be considered |
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Capacity | C | nF | < 100 | |
Switching energy | E | mWs | 0.029 | |
Holding energy | P | W | 0 | |
Switching time | t | ms | < 2 | |
Connection | Contact pins – Ø0.8 mm | |||
* other fluids on request |
Description |
Symbol |
Order Instructions | |
Type | Order No. | ||
Switching valve, normally closeed (+pole on the left side) | P9-NG-S-L | PS11010-11L | |
Proportional valve, normally cloesed (+pole on the right and left side) | P9-NG-P-LR | PS11010-31LR |