| Design | Poppet valve with piston drive | ||
| Corrosion resistance class CRC | 2 - Moderate corrosion stress | ||
| Material seat seal | FPM | ||
| Material number process valve housing | 1.44 | ||
| Note on materials | Contains paint-wetting impairment substances RoHS-compliant | ||
| Ambient temperature | -10 °C ... 60 °C | ||
| Max. viscosity | 600 mm²/s | ||
| Direction of flow | Above valve seat, for gaseous media | ||
| Symbol | 991,367 | ||
| Pneumatic connection | Female thread G1/8 | ||
| Type of reset | Mechanical spring | ||
| Nominal pressure PN | 40 | ||
| Flow direction | Non-reversible | ||
| Nominal size | 31 mm | ||
| Type of mounting | In-line installation | ||
| Sealing principle | Soft |
| Material drive housing | Nickel-plated brass | ||
| Product weight | 2.200 g | ||
| Material spindle seal | FPM | ||
| Material process valve housing | Stainless steel casting | ||
| Flow rate Kv | 18,5 m³/h | ||
| Media temperature | -10 °C ... 80 °C | ||
| Operating medium | Compressed air to ISO 8573-1:2010 [7:4:4] | ||
| Medium | Vapour Inert gases Filtered compressed air, grade of filtration 200 µm | ||
| Operating pressure | 87 psi ... 145 psi | ||
| Type of piloting | Externally controlled | ||
| Exhaust-air function | Without flow control option | ||
| Medium pressure | -0,9 bar ... 0 bar | ||
| Valve function | 2/2-way, closed, monostable | ||
| Line connection | Threaded coupling G1 1/4 to DIN ISO 228 | ||
| Mounting position | optional | ||
| Type of actuation | Pneumatic |
