BURKERT Type 0331 (Article Number 20136290) is a direct-acting, media-separated pivoted armature valve. This 3/2-way solenoid valve features a brass body, NBR seal, and a Bürkert-specific flange connection. The solenoid coil is moulded with a chemically resistant epoxy, and the coil system is separated from the medium by a diaphragm. It operates at 230 V (50 Hz) and handles a pressure range of 0 to 10 bar. The valve is equipped with a manual override for start-up and testing.

General Technical Data

Property	Value
Orifice	DN 3.0 mm
Circuit function	C (3/2-way solenoid valve, direct-acting, normally closed)
Body material	Brass
Seal material	NBR
Port connection	Flange interface according to Bürkert standard
Voltage	230 V / 50 Hz
Pressure range	0 to 10 bar
Medium temperature	0 °C to +80 °C
Ambient temperature	Max. +55 °C
Degree of protection	IP65 with cable plug

Circuit Function

Circuit function C (CF C): 3/2-way solenoid valve, direct-acting, normally closed.

Materials

• Coil: Epoxy
• Diaphragm / O-ring: NBR
• Seat / Valve body: Brass

Dimensions

(Dimensions in mm for standard variant metal body)

Installation and Safety

Safety Instructions

• Risk of injury from high pressure: 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.

Installation position: As required, preferably with actuator upright. Dirt trap: For safe operation of the solenoid valve, a dirt trap (≤ 500 µm) must be installed before the valve inlet.

Electrical Connection

• Connect L1/+ and N/– to terminals 1 and 2 independently of the polarity.
• Connect the protective conductor.
• Screw the cable plug in place, observing the maximum torque of 1 Nm.