ASCO 551 Valves | Exd Flameproof ATEX IECEx Solenoid Valves 3/2 (Brass)

Product Overview

ASCO 551 3/2 solenoid Valves

ASCO 551 Series Exd Flameproof Valves are single/dual solenoid valves, with mono/bistable function, which are pilot operated, have a brass body and are 1/4 tapped.

The monostable spool valves are manufactured and certified for hazardous area use according to IEC 61508 Standard (2010 route 2H version) and are TÜV certified with integrity levels: SIL 2 for HFT = 0 / SIL 3 for HFT = 1.

features

• The solenoid operated spool valves have threaded port connections and a ‘NAMUR’ interface
• In order to provide better environmental protection against the ingress of liquids, dusts and other foreign matter, all of the exhaust ports are connectable. This is particularly recommended for sensitive areas, such as clean rooms, and applications within the pharmaceutical and food processing sectors
• ASCO 551 Ex d flameproof solenoid valves can be externally piloted via an external air pilot supply, in order to convert the valve to zero minimum operation by flipping a gasket
• The solenoid valves can be mounted in any position without affecting operation
• Ex mb/mD (prefix “PV”) solenoid can be supplied with various lengths of cable
• Other pipe threads are available on request

ASCO Solenoid Valves & Valve Operators are ATEX & IECEx certified for Class I, Division 2 and Zone 1 & Zone 2 hazardous areas.

specification

Differential Pressure: 2 – 10,4 bar [1 bar =100 kPa]
Flow (Qv at 6 bar): 860 l/min (ANR)
Fluids: air, inert gas, filtered
Temperature Range: -40°C to +60°C
Seal Materials: VMQ (silicone) + PUR (polyurethane)

asco 551 valves – dimensions

Type ASCO 551 Flameproof Solenoid Valves