
Piezo switching valve – intrinsically safe
ATEX-certified control valves
- Intrinsically safe and certified for use in explosion-protected environments
- High reliability due to robust design
- Compatible with standard actuation units
In the decentralized automation in fields prone to explosions, intrinsically safe piezo control valves from HOERBIGER are far ahead of solenoid-operated valves. They offer not only optimal Ex protection, but also allow hot swaps and can therefore be replaced during ongoing operations.
HOERBIGER piezo technology forms the basis for this unique selling proposition. Their low electrical power demand makes the intrinsically safe, ATEX-certified piezo-pneumatic control valves an excellent choice for gas, dust and hazardous applications. In addition, they are distinguished by a long service life.
Given their compact dimensions, our control valves can be integrated in a wide variety of applications. We also offer numerous options in the selection of the electrical interfaces.
The piezo-pneumatic switching valve P8 is used as a pilot valve for pneumatically actuated control valves.
- Function:
- 3/2 ways
- Flow:
- up to 100 NL/min
- Connection:
- Flange or M5

Quick guide

Manual

Technical data sheet
Compared to the P8 valve the P20 valve has a significantly increased flow rate.
- Extremely low electrical power consumption
- Self-heating free
- Flange connection for fast mounting
- Compatible with microcontrollers
- Compatible with control modules
- Does not cause switching noise
- Compact and light weight
- Excellent price-performance ratio
- Power-up energy:
- 28,8 × 10-6 J
- Control voltage:
- 9 to 30 V
- Working pressure range:
- min 1.5 bar to max. 8 bar
- Nominal pressure:
- 6 bar
- Nominal flow rate:
- > 110 l/min
- Ambient temperature:
- -10 to +60 °C
- Temperature medium:
- -10 to +60 °C
- Protection class:
- IP 54

Quick guide

Manual

Technical data sheet
The S29 piezo-pneumatic switching valve is used for mounting on pneumatic valve actuators (rotary and linear).
- Function:
- 3/2, 5/2 and 5/3 ways
- Flow:
- ≥1,300 NL/min
- Connection:
- NAMUR 1/4''

Quick manual

Manual

Technical data sheet
The piezo-pneumatic switching valve S9 is suitable for system technology in single or battery mounting.
- Function:
- 3/2, 5/2 and 5/3 ways
- Flow:
- ≥500 / 1,300 NL/min
- Connection:
- G1/8, G1/4

Quick guide

Operating instructions

Technical data sheet

Technical data sheet




Product information

For piezo switching valves Type S9; S29; P8 and P20

Piezo switching valve (P8, P20, S9, S29)

Piezo switching valve (P8, P20, S9, S29)

Piezo switching valve (S9, S29)

P8

P20

Pressure reducer (P8 insert / P20 insert)
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