The BURKERT 387399 (Type 0131) is a direct-acting 3/2-way toggle valve designed for the reliable control of various media. This specific model features a robust brass body and EPDM seals, making it suitable for medium temperatures ranging from -30 °C to +90 °C. It operates as a normally open valve (Circuit Function D) with a G 3/8 internal thread and a 10 mm orifice (DN10), capable of handling pressures from 0 to 1 bar.

Thanks to the diaphragm separation between the actuator and the valve body, the Type 0131 can safely control demanding media. The solenoid is moulded with a highly resistant chemical epoxy and includes integrated "Kick and Drop" electronics for significantly reduced electrical power consumption during operation. It also features a robust, service-friendly manual override.

Technical Data

Property	Value
Orifice	DN 10
Circuit function	D (Normally open)
Thermal insulation class	Epoxy coil class H
Duty cycle	100 % continuous operation
Switching time	Opening: 10...20 ms / Closing: 40...60 ms
Operating voltage	24 V (AC/DC)
Power consumption	Inrush: 100 W / Hold: 9 W
Voltage tolerance	±10 %
Viscosity	Max. 37 mm²/s
Degree of protection	IP65 with cable plug
Installation position	Any, preferably actuator face up
Ambient temperature	Max. +50 °C

Circuit Function

This valve operates with Circuit Function D (CF D).

• CF D: 3/2-way solenoid valve, direct-acting, normally open. Inlet port 1 (P/NO) is connected with outlet port 2 (B/OUT), and exhaust port 3 (R/NC) is closed in the rest position.

Materials

The 387399 utilizes a brass housing with EPDM sealing components for broad compatibility with oil- and grease-free liquids, cold and hot water, and technical vacuum.

No.	Element	Material
1	Coil	Epoxy
2	Plunger	Stainless steel 1.4105
3	Toggle pin	PTFE
4	O-ring	EPDM
5	Closing body	EPDM
6	Housing	Brass
7	O-ring	EPDM
8	Lateral flange	PC
9	Manual override	With locking function

Dimensions

Note: Dimensions in mm.

Material	DN	Connection	D	L
Brass	10	Threaded	G 3/8	12

Installation and Operation

DANGER

Risk of injury from high pressure and electric shock

• Before loosening lines or valves, switch off the pressure and vent the lines.
• Before working on the device or the system, switch off the power supply and secure against reactivation.

Preparatory work:

• Clean pipelines of any contamination.
• Install a dirt trap upstream of the valve inlet (≤ 500 µm).

Installation:

• The valve body must not be installed under tension.
• Seal material must not get into the device.
• Pay attention to flow direction: The arrow or letters on the body indicate the flow direction (from P → B for NO).

WARNING

Breaking hazard Do not use the coil as a lever arm during installation.

Manual Override

To override the valve manually, press the manual override (1) and turn it 90° clockwise until it stops.

TIP

When the manual override is locked, the valve can no longer be electrically actuated.

Troubleshooting and Maintenance

If faults occur, verify that the device is installed correctly, electrical and fluid connections are secure, voltage and pressure are applied, and pipelines are clean.

Fault	Possible cause
Valve does not actuate	Short circuit or coil interrupted Operating pressure outside the permitted pressure range Manual override locked
Valve does not close	Interior of the valve soiled Manual override locked

Spare Parts

1. Coil set
2. Actuator set
3. Wearing part set

Order the spare parts kits by specifying the item number and the order number of the device.