Page 129 - Bürkert

3/2- and 4/2-way NAMUR Solenoid Valve for pneumatic

5470 NAMUR 5470 NAMUR Ex i • Extreme switching reliability 4(B)
DN4 mm

• Plastic version
14
• Reduced power consumption
1(P) 3(R)
• With manual override
2(A) 4(B) 10
14
12
1(P) 3(R)

The NAMUR solenoid valves, Type 5470 NAMUR and Type 5470 Dimensions [mm] (see datasheet for further Details)
NAMUR Ex i, are equipped with a NAMUR standard flange for easy direct
mounting on process actuator. The devices of this series are made from
high quality plastics. D

Technical data
Pressure range 2-10 bar Standard, 2-8 bar Ex i
Media temperature -10 ºC to +50 °C C
Ambient temperature +55 ºC max.
Body material Polyamide
Connections G 1/4”
(Brass nickel-plated for Connection 1 and 3)
Orifice 4 mm
Seal material NBR
Voltage tolerance ±10%
Duty cycle 100% continuous rating B A
Electrical connection Tag connector according to DIN EN 175301
(previously DIN 43650) for cable plug Form C
(not included)
Size A B C D
Type of protection IP65 (NEMA 4) with Cable Plug
G 1/4" 18 55 115.3 37
Response times 1)
Standard Opening 50 ms, Closing 12 ms
Ex i Opening 60 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% Electrical data - coil AC10 Ex i
Type of protection II 2G Ex ia IIC T6 PTB 01 ATEX 2175
Note Functional values for valve
The units may only be used in explosive atmospheres in the manner ap- switching function at +20 °C at +55 °C
Minimum switching current
proved by the Federal Institute of Physics and Technology (PTB), i.e., the Nominal resistance of the coil 29 mA 29 mA
320 Ω
360 Ω
permissible maximum electrical values must be complied with. Suitable Minimum terminal voltage 9.3 V 10.4 V
barriers and isolating modules are available for this. Permissible maximum values
acc. to certificate of conformity
Barrier/ Ui 35 V
PLC isolating Ii 0.9 A
component Pi/Tumg. max. 0.9 W/+55 °C
The valve is intended for operation on 24V DC outputs via the intermedi-
ate switching of a corresponding intrinsically-safe operating resource
(isolating module or barrier). If required, request the “Recommended
Barrier and Isolating Module” data sheet.

Options
• Without manual override
• SIL certificate

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