EFG551A001MS EFG551A002MS G1/4"ASCO solenoid valve“NAMUR" single Double solenoid explosion-proof Solenoid coil

EFG551A001MS EFG551A002MS G1/4"ASCO solenoid valve“NAMUR" single Double solenoid

explosion-proof Solenoid coil

FEATURES
1 The monostable spool valves have TÜV-EXIDA certified IEC 61508 Functional Safety data and can be used up to SIL 4 (551 / TÜV)-SIL 3 (552-553/EXIDA)
2 The spool valves have threaded port connections and "NAMUR" style interface
3 The same spool valve can be adapted for 3/2 NC or 5/2 function for controlling double-acting and single-acting actuators
4 All the exhaust ports of this spool valve are connectable, providing better environmental protection, particularly recommended for sensitive areas such as clean rooms, and applications in the pharmaceutical and food processing sectors
5 The valve offers environmental protection against the ingress of liquids, dusts or any other foreign matter (environmentally-protected construction)
6 Epoxy moulded coil for general service applications
7 The solenoid valves satisfy all relevant EC Directives

GENERAL
Differential pressure                    2 - 10 bar [1 bar = 100 kPa]
Flow (Qv at 6 bar)                       1/4 = 700 l/min (ANR)
                                                    3/8 - 1/2 = 3000 l/min (5/2, 5/3)

MATERIALS IN CONTACT WITH FLUID
() Ensure that the compatibility of the fluids in contact with the materials is verified
Body                                              Aluminium, black anodized
End covers + interface plates       Glass-filled PA
Internal parts                                 Zamak, stainless steel, (POM), aluminium
Seals                                             NBR + PUR
Core and plugnut                          Stainless steel
Shading coil                                  Copper

INSTALLATION

L Installation/maintenance instructions are included with each valve
L The valves can be mounted in any position without affecting operation
L 3/2 NC-5/2 spool valve supplied with two interface plates with NAMUR mating surfaces. Depending on function (3/2 NC or
5/2), position one of the two plates on the spool valve body before installing on actuator
L IEC 61508 Functional Safety (Suffix SL), allowable temperature range: -25°C to +60°C. Probability of failure on demand,
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L Spool valve supplied with two interface plates with NAMUR mating surfaces. Depending on function (NC 3/2 or 5/2),
position one of the two plates on the spool valve body before installing on actuator
? L It is necessary to connect pipes or fittings to the exhaust ports to protect the internal parts of the spool valve and its
pneumatic operator if used outside or in harsh environments (dusts, liquids etc.)
? L Dowel pin (if necessary), bolts and gaskets are standard supplied
L Threaded pipe connection identifier is: 8 = NPT (ANSI 1.20.3); G = G (ISO 228/1)

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