The ASCO series 551 - Pilot operated solenoid valve - 5/2 way - Without manual operator - NPTF 1/4'' (DN8) - Orifice: 6,0 - Monostable - Stainless steel - Enclosure Cable Entry M20x1.5 - Resilient: LT-NBR - 1,8 W - Coil class: F - II2G Ex db IIC Gb / II2D Ex tb IIIC Db-T6/5 - IP67
| Type of Operator | Solenoid Air Operated |
| Thread Type | NPT (ANSI 1.20.3) |
| Pressure Connection | Threaded 1/4 |
| Body Material | 316 Stainless Steel |
| Minimum Flow l/min (ANR) | 860 l/mn |
| Pilot Valve Function | 5/2 Spring Return |
| Media | Air, Inert Gas |
| Min to Max Operating Pressure (Air) | 2 ~ 10 bar |
| Solenoid Valve Type | II 2GD Ex d IIC IP67 Stainless Steel Enclosure Cable Entry M20x1.5 |
| Method of Protection | Ex d |
| Electrical Connection | Stainless Steel Junction Box, M20x1.5 Conduit w/Terminal Strip |
| Orifice Size | 6 mm |
| Voltage | 24 Volts / DC |
| Power Consumption | 1.8 Watt |
| Coil Class | F |
| Min. to Max. Ambient Temperature | - 40 ~ 75 °C |
| Min. to Max. Fluid Temperature | - 40 ~ 80 °C |
| Standards & Regulations | ATEX Zone 1-21 |
| Operating Environment | Hazardous |
