Burkert 43340 Type 0331 is a direct-acting, media-separated pivoted armature solenoid valve. Configured as a 3/2-way variant with Circuit Function C (normally closed), it features a brass body and NBR seal. The solenoid coil is moulded with a chemically resistant epoxy, and the coil system is separated from the medium by a diaphragm. The valve is equipped with a manual override for start-up and testing, and connects via a G 1/4 internal thread. It operates at 240 V AC (50 Hz) and supports a pressure range of 0 to 10 bar with a 3.0 mm orifice providing a Kv value of 0.15 m³/h.

General Technical Data

Property	Value
Orifice	DN 3.0 mm
Circuit function	C (3/2-way, normally closed)
Thermal insulation class	Epoxy coil class H
Duty cycle	100% continuous operation (brass body)
Switching time (AC)	Opening: 8...15 ms, Closing: 8...15 ms
Power consumption (AC)	Inrush: 30 VA, Hold: 15 VA / 8 W
Voltage tolerance	±10%
Operating medium (NBR)	Neutral mediums such as compressed air, town gas, water, hydraulic oil, oils and greases without additives, oxygen
Medium temperature (NBR)	0 °C to +80 °C
Viscosity	Max. 37 mm²/s
Electrical connection	Plug contacts according to DIN EN 175301-803 form A
Degree of protection	IP65 with cable plug
Ambient temperature	Max. +55 °C
Installation position	As required, preferably with actuator upright

Circuit Function

The 43340 model operates with Circuit Function C (CF C).

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

Materials

No.	Element	Material
1	Coil	Epoxy
2	Diaphragm	NBR
3	O-ring	NBR
4	Seat	Brass
5	Valve body	Brass

Dimensions

The following dimensions apply to the standard metal body variant.

INFO

Dimensions are in mm. The dimensions of the cable plug Type 2518 or 2509 correspond to DIN EN 175301-803 Form A.

Product Connections

The pin assignment depends on the circuit function. For Circuit Function C, the connections are assigned as follows:

Circuit function	Connection 1	Connection 2	Connection 3
C	P	A	R

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. Observe the applicable accident prevention and safety regulations for electrical devices.

Performance Specifications

Pressure range and flow rate for the standard variant with a brass body:

Circuit function	DN	Kv value water (AC)	Pressure range (Standard AC)
C	3.0 mm	0.15 m³/h	0...10 bar

Note: Pressure data indicates overpressure to atmospheric pressure. Heat output is 8 W.