ASCO 551 553 hazardous area solenoid valves are pilot operated spool type valves suitable for hazardous areas installation with international classifications including ATEX, UL, CSA and other local approvals on request.
ASCO 551 553 hazardous area solenoid valves are pilot operated spool type valves suitable for hazardous areas installation with international classifications including ATEX, UL, CSA and other local approvals on request.
5/2-5/3 – Way Solenoid Valve
NC – Normally Closed Valve
NO – Normally Open Valve
Via ASCO Numatics FASTSHIP and SAMEDAY Express Delivery Service we are able to deliver 2,000+ ASCO valves from stock direct to you.
Differential Pressure : 2 – 10.4 bar [1 bar = 100 kPa]
Flow (Qv at 6 bar): 1/4 = 860 l/min (5/2) ; 760 l/min (5/3)(ANR) 1/2 = 3800 l/min (5/2, 5/3)
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.
Valve Coil Insulation Class : F
Electrical Safety : IEC 335
Standard Valve Voltages : DC (=) (8) : 24V – 48V ; CFSC/CFSCZN/CFVT : 24V CFSCIS : 12V – 24V ; LISC : 12..24V ; PISC : 24V to 70V ; PISCIS : 6V, 8V, 12V, 24V
AC (~) (8) : 24V – 48V – 115V – 230V/50Hz ; CFSC : 24V – 115V – 230V/50Hz ; PISC : 24V to 70V – other voltages and 60Hz are available on request
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| Category | Process Instrumentation |
|---|
| Fluids | Temperature Range (TS) | Valve Seal Materials |
| air, inert gas, filtered | -25°C to +40°C | NBR Nitrile + PUR Polyurethane |
| -25°C to +60°C |
| ASCO 551 553 Solenoid Valve | |
| Body | Aluminium, black anodised |
| End cover (spring return) | Glass-filled PA |
| Spool valve internal parts | Zamak, stainless steel, POM, aluminium |
| Pilot internal parts | Size 30 (E06.05.80), refer to specific catalogue pages: 314/LPKF (contact us) and 195 (LISC) pilots Size 15 (E06.36.120N), refer to specific catalogue pages: 302 pilots (CFSC/CFVT/CFSCIS/CFSCZN) and 630 piezotronic (PISC-PISCIS) |
| Pilot end covers | Aluminium |
| Pipe size | Orifice size | Flow coefficient kV | Operating pressure differential (bar) | Power level ~/= | ASCO Catalogue number | ||||
| (mm) | (m3/h) | (i/min) | Min | Max (PS) | |||||
| air (*) | |||||||||
| ~ | = | ||||||||
| CNOMO size 30 | CNOMO size 15 | ||||||||
| Solenoid air pilot operated – spring return (monostable) | |||||||||
| 1/4 | 6 | 0.75 | 12.5 | 2 | 10 | 10 | LP | – | ASCO 551C517 |
| 1/4 | 6 | 0.75 | 12.5 | 2 | – | 8 | LP | – | ASCO 551C517 |
| 1/4 | 6 | 0.75 | 12.5 | 2 | 10 | 10 | BP | ASCO 551A217 | – |
| 1/4 | 6 | 0.75 | 12.5 | 2 | – | 8 | LP | ASCO 551B217 | – |
| 1/4 | 6 | 0.75 | 12.5 | 2 | 8 | 8 | UP | – | ASCO 551C517 |
| 1/2 | 13 | 3.15 | 52.5 | 2 | 10 | 10 | LP | – | ASCO 553A517 |
| 1/2 | 13 | 3.15 | 52.5 | 2 | – | 8 | LP | – | ASCO 553A517 |
| 1/2 | 13 | 3.15 | 52.5 | 2 | 10 | 10 | BP | ASCO 553A217 | – |
| 1/2 | 13 | 3.15 | 52.5 | 2 | – | 8 | LP | ASCO553B217 | – |
| 1/2 | 13 | 3.15 | 52.5 | 2 | 8 | 8 | UP | – | ASCO 553A517 |
| Pipe size | Orifice size | Flow coefficient kV | Operating pressure differential (bar) | Power level ~/= | ASCO Catalogue number | ||||
| (mm) | (m3/h) | (i/min) | Min | Max (PS) | |||||
| air (*) | |||||||||
| ~ | = | ||||||||
| CNOMO size 30 | CNOMO size 15 | ||||||||
| Solenoid air pilot operated – spring return (monostable) | |||||||||
| 1/4 | 6 | 0.75 | 12.5 | 2 | 10 | 10 | LP | – | ASCO 551C518 |
| 1/4 | 6 | 0.75 | 12.5 | 2 | – | 8 | LP | – | ASCO 551C518 |
| 1/4 | 6 | 0.75 | 12.5 | 2 | 10 | 10 | BP | ASCO 551A218 | – |
| 1/4 | 6 | 0.75 | 12.5 | 2 | – | 8 | LP | ASCO 551B218 | – |
| 1/4 | 6 | 0.75 | 12.5 | 2 | 8 | 8 | UP | – | ASCO 551C518 |
| 1/2 | 13 | 3.15 | 52.5 | 2 | 10 | 10 | LP | – | ASCO 553A518 |
| 1/2 | 13 | 3.15 | 52.5 | 2 | – | 8 | LP | – | ASCO 553A518 |
| 1/2 | 13 | 3.15 | 52.5 | 2 | 10 | 10 | BP | ASCO 553A218 | – |
| 1/2 | 13 | 3.15 | 52.5 | 2 | – | 8 | LP | ASCO553B218 | – |
| 1/2 | 13 | 3.15 | 52.5 | 2 | 8 | 8 | UP | – | ASCO 553A518 |
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ASCO Solenoid Valves (SIL3 NACE ATEX NAMUR Valves)ASCO 551-553 explosion proof solenoid valves are single/dual NAMUR style solenoid valves, which are pilot operated, have an stainless steel body and are 1/4 and 1/2 tapped.
ASCO Solenoid Valves (SIL3 NACE ATEX NAMUR Valves)ASCO 302 series are direct operated and pad mounted explosion proof solenoid valves which are ATEX certified for installation in potentially explosive atmospheres located in hazardous areas.
ASCO Solenoid Valves (SIL3 NACE ATEX NAMUR Valves)ASCO 551-553 explosion proof solenoid valves are single/dual solenoid valves, which are pilot operated, have an stainless steel body and are 1/4 and 1/2 tapped.
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