Page 147 - Bürkert

5/2 and 5/3-way Solenoid Valve for pneumatics, Ex m Version

WW H
mit Handnotbetätigung
G 1/4”
6519 Ex m • Ex m model with 3 m moulded cable 12 mit Handnotbetätigung
2
4
WW L
3
5
• High flow rate
• Single and manifold assembly WW N 4 1 2
mit Handnotbetätigung
• High switching reliability 14 12
5 1 3
• Manual override as standard
4 2
14 12
5 3
1 mounting example

The Ex m approval is achieved by the mounting of an approved push-over Envelope Dimensions [mm] (see datasheet for details)
coil. The cable connection and the cable are non-detachable and sealed
together with the valve. The valves can be used individually or in blocks.

Technical Data

Orifice DN8.0 and 9.0 mm
Body materials
Pilot valve Polyamide
Main valve 5/2-way; Polyamide, 5/3-way; Aluminium
Thread insert material Brass (stainless steel on request)
Seal materials NBR, NBR and PUR
Pneumatic connection
Supply ports 1,3,5 Threaded port G 1/4”, can also be flanged
Service ports 2 and 4 Threaded port G 1/4” (on request NPT 1/4”)
Electrical connection Moulded cable, 3 m (non-detachable ),
Terminal box on request C
Protection class IP65
Approval Ex m II T5, II 2G, II 2D, IP65,
max. surface temperature 100 °C
Operating voltage 24/110/230 V UC (all currents)
Voltage tolerance ±10%
Power consumption coil 3 W (100% continuous rating)
Ambient temperature -25 °C to +50 °C
Medium Lubricated or non-lubricated compressed air,
on request neutral gases technical vacuum A
B
Environmental conditions Open air, chemical atmosphere
For use in zone 1, 2, 21 and 22
A B C
Response times 1) 53 32 107.7
Opening 20 ms
Closing 50 ms
1) Measured at valve outlet at 6 bar and +20°C acc. to ISO 12238.
Opening: Pressure rise 0 to 90%
Closing: Pressure drop 100 to 10%
Note: pneumatic modules see Type 6518

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