ASCO 551-553 Solenoid Valves NAMUR – 1/4 – 3/8 – 1/2 Aluminium Air Operated Exida Approved Pilot Valve

ASCO 551-553 NAMUR Solenoid Valve – Pilot Operated Valve
ASCO 551-553 NAMUR solenoid valves are pilot operated, spool type single/dual solenoid (mono/bistable function) with an aluminium body.
ASCO 551-553 Solenoid Valves features
- The valve offers environmental protection against the ingress of liquids, dusts or any other foreign matter (environmentally-protected construction)
- The spool valves 3/2 NC have threaded port connections
- Solenoid valves handle high pressure 3-way applications
- The solenoid valves satisfy all relevant EU Directives
- Differential Pressure : 2 – 10,4 bar [1 bar = 100 kPa]
- Flow (Qv at 6 bar) : 1/4 = 860 l/min (ANR) 1/2 = 3800 l/min
ATEX & IECEx valves are available using ASCO 551-553 solenoids approved to EN 13463-1 for hazardous area applications.
For complete specification, fluid compatibility, valve selection guide and ordering examples for ASCO 551-553 solenoid valves please refer to the download.
SOLENOID VALVES
EXPLANATION OF TEMPERATURE RANGE
Valve Temperature Range : the temperature range (TS) of the solenoid valve is determined by the selected sealing material, the temperature range for proper operation of the valve and according to the fluid (eg steam).
Operator Ambient Temperature Range : determined by power level and safety code.
Total Temperature Range : the total temperature of the solenoid valve is determined by both the limitations of the above.
ASCO 551-553 solenoid valves are available with NAMUR interface. NAMUR, translated from the German acronym to StandardiSation Association for Measurement and Control in Chemical Industries, is the specification for a standard interface between pneumatic actuators, solenoid valves and directional control valves.

ASCO Numatics Flow Control Distributor
➡ Did you know? T&D are Approved Channel Partners for ASCO Numatics ATEX & IECEx certified solenoid valves for Class I, Division 2 and Zone 1 & Zone 2 hazardous areas.