BURKERT 20062351 Type 0331 is a direct-acting, media-separated pivoted armature solenoid valve. This explosion-proof variant features a brass body, FKM seal, and a flange connection (Bürkert flange 32 x 46 version A2). The solenoid coil is moulded with a chemically resistant epoxy, and the coil system is separated from the medium by a diaphragm, making it especially suitable for critical media such as aggressive acids and lyes.

This specific model operates as a 2/2-way normally closed valve (Circuit Function A) with a 3.0 mm orifice. It is designed for a pressure range of 0 to 10 bar and includes an ATEX/IECEx certified coil (Type ACP016) with a moulded cable connection, operating at 24 V.

General Technical Data

Property	Value
Orifice	DN 3.0 mm
Body Material	Brass
Seal Material	FKM (Fluor rubber)
Port Connection	Flange interface according to Bürkert standard
Weight (Explosion-proof)	Metal body: 0.75 kg
Duty Cycle	100% continuous operation
Switching Time (Explosion-proof)	Opening: 30 ms / Closing: 40 ms
Ambient Temperature	Max. +55 °C
Medium Temperature	0 °C to +90 °C
Degree of Protection	IP65

Electrical Data

Property	Value
Voltage	24 V (AC/DC)
Voltage Tolerance	±10%
Power Consumption (Inrush)	40 W
Power Consumption (Hold)	3 W
Electrical Connection	Moulded cable (Type ACP016 coil)
Thermal Insulation Class	Epoxy coil class H

Explosion Protection

The 20062351 valve is equipped with an explosion-proof coil (Type ACP016) with a cable outlet. The Ex marking of the components is according to the following:

• ATEX: EPS 16 ATEX 1 111 X / II 2G Ex mb IIC T4 Gb / II 2D Ex mb IIIC T130 °C Db
• IECEx: IECEx EPS 16.0049X / Ex mb IIC T4 Gb / Ex mb IIIC T130 °C Db

Note on Explosion Protection

The applied explosion protection type is encapsulation Ex "m" for coils with cable connection. The device is designed for use in explosion group IIC, category 2G, temperature class T4 or explosion group IIIC, category 2D, T130 °C.

Circuit Function

Symbol	Description
	Circuit function A (CF A) 2/2-way solenoid valve Direct-acting Normally closed

Performance Specifications

Explosion-proof variant (Brass body)

Circuit Function	DN [mm]	Kv value water [m³/h]	Pressure range Standard [bar]	Pressure range Vacuum [bar]
A	3.0	0.15	0...10	-0.98...6

Note: Pressure data indicates overpressure to atmospheric pressure. Devices with FKM diaphragms are reduced to a maximum pressure of 12 bar in general applications, but this specific configuration is rated for 0-10 bar.

Dimensions

Explosion-proof variant (Cable variant)

Note: Dimensions in mm.

Safety Instructions

DANGER!

Risk of injury from high pressure in the system/device

• Before working on equipment or device, switch off the pressure and deaerate/drain lines.

Risk of injury from electric shock

• Before working on the system or device, switch off the power supply and secure against reactivation.
• Observe the applicable accident prevention and safety regulations for electrical devices.

WARNING!

Risk of explosion due to electrostatic discharge If there is a sudden discharge from electrostatically charged devices or individuals, there is a risk of explosion in the potentially explosive area.

• Take appropriate measures to ensure that no electrostatic discharges can build up in the potentially explosive area.
• Do not use the device in areas where there are processes that generate strong charges.
• Only clean the device surface by wiping it gently with a damp or antistatic cloth.