Page 153 - Bürkert

5/2 on 3/2-way Convertible Solenoid Valve for pneumatics,
NAMUR Ex m/me version

G 1/4”, NAMUR
6519 NAMUR Ex m/me • Ex m model with 3 m cable 12 3(R) 5(S)

• High flow rate
• High switching reliability
4(B)
• Manual override as standard
1(P)
• Corrosion-resistant construction
4(B) 2(A)
12
5(S) 3(R)
1(P)

Type 6519 NAMUR Ex m/me valve for process plants switches reliably, Envelope Dimensions [mm] (see datasheet for details)
even when fully restricted. The valve made out of premium polyamide
can be operated either as a 5/2 or a 3/2-way version through different
3/2-way valve, circuit function C or
mounting plates. The NAMUR flange interface allows easy assembly on
5/2-way valve, circuit function H
different pneumatic actuators on the spot.
with moulded cable (3 m long) (Ex m)
Technical Data
Orifice DN6.0 mm Ex m Approval
Body materials 32 SW 14 Integrated cable
(Standard 3 m long)
Pilot valve and main valve Polyamide (PA) G1/8 76
Thread insert material Brass, nickel-plated or stainless steel
Seal material NBR and PUR 11.2
Pneumatic connection G1/4 / NPT1/4
Supply ports 1,3,5 Threaded port G 1/4”
Service ports 2 and 4 NAMUR flange 176.8
Electrical connection Moulded cable, 3 m (non-detachable) or 5.3
terminal box
Power consumption Cable version 3W, 5W terminal box version 48 107.7 24
with T5 and Tu 50 °C, 7W with T4 and Tu 55 °C 51.6 51.6
Protection class IP65
Approval Ex m II T5 (cable version), Ex em II T5
(with terminal box), II 2G, II 2D, IP65, 32 3.95
max. surface temperature 100 °C 37 32
53
Operating voltage 24/230 V UC (universal current)
Voltage tolerance ±10%
Duty cycle 100% continuous rating
Ambient temperature -25 °C to +55 °C 3/2-way valve, circuit function C or 5/2-way valve,
Mediums Lubricated or non-lubricated compressed air, circuit function H, with terminal box (Ex me)
nitrogen, instrument air
Environmental conditions Slightly aggressive, also open air
Response times 1) 60 101.3
Opening 20 ms
Closing 40 ms
1) Measured at valve outlet at 6 bar and +20 °C acc. to ISO 12238. 10 G1/8
Opening: Pressure rise 0 to 90%, 119.8
Closing: Pressure drop 100 to 10% 67
230 G1/4 / NPT1/4 176.7

48 24 5.3
51.6 51.6

32 3.95
37 32
53

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