Page 146 - Bürkert

Note Electrical data - coil AC10 Ex i
The units may only be used in explosive atmospheres in the manner ap- Approval II 2G Ex ia IIC T6 PTB 01 ATEX 2101
proved by the Federal Institute of Physics and Technology (PTB), i.e., the II 2D Ex ia D21 T 80°C
permissible maximum electrical values must be complied with. Suitable Functional values for valve
switching function 1) at +20°C at +55°C
barriers and isolating modules are available for this. Minimum switching current 29 mA 29 mA
Nominal resistance of the coil 310 Ω 360 Ω
Barrier/ Minimum terminal voltage 9.0 V 10.4 V
PLC isolating
component Permissible maximum values
acc. to certificate of conformity 6519 Ex i
The valve is intended for operation on 24 VDC outputs via the intermedi- Ui 35 V
Ii
0.9 A
ate switching of a corresponding intrinsically-safe operating resource Pi 1.1 W
(isolating module or barrier). If required, request the “Recommended 1) With high impedance coil on request
Barrier and Isolating Module” data sheet.

Ordering Chart

Port
Seal material Pressure Body mate- Pilot air
Orifice connection QNn-value Mass
Circuit function (Body range rial thread insert Item no.
2)
[mm] threaded air [l/min] [g]
1)
material) [bar] pilot valve material
port [inch]
Type 6519 threaded version Ex i
H 5/2-way valve, 8.0 NBR and PUR G 1/4 1300 2 - 8 670 St. St. 1.4305 St. St. 144 484
servo-assisted, (Polyamide)
brass, nickel 144 485
in de-energized
plated
position port 2
Brass brass, nickel 147 252
pressurized, port 4 plated
exhausted
1) Flow rate: QNn value air [l/min]: Measured at +20 °C, 6 bar pressure at valve inlet, 1 bar pressure difference
2) Pressure values [bar]: Gauge pressures with respect to the prevailing atmospheric pressure

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