The BURKERT 17841 (Type 0131) is a direct-acting 3/2-way toggle valve designed for reliable fluid control. Thanks to the diaphragm separation between the actuator and the valve body, aggressive media can also be safely controlled. The solenoids are moulded with a highly resistant chemical epoxy, ensuring durability in demanding environments. This specific model features a brass body, FKM (Fluor rubber) seals, a 15 mm orifice, and G 1/2 internal thread connections. "Kick and drop" electronics are moulded into the 24V DC solenoid variant for significantly reduced electrical power consumption. It also includes a robust, service-friendly manual override with a locking function.

General Technical Data

Property	Value
Duty cycle	100 % continuous operation
Switching frequency	Max. 6/min with UC
Switching time	Opening: 10...20 ms / Closing: 40...60 ms
Operating voltage	24 V (DC/AC)
Power consumption (UC)	Inrush: 100 W / Hold: 9 W
Voltage tolerance	±10 %
Medium temperature (Brass/FKM)	-10 °C...+90 °C (with kick and drop electronics)
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 model operates with Circuit Function C (CF C).

Circuit function C (CF C): 3/2-way solenoid valve, direct-acting, normally closed. Inlet port 1 (P/NC), outlet port 2 (A/OUT) connected with exhaust port 3 (R/NO).

Materials (3/2-way Brass Variant)

No.	Element	Material
1	Coil	Epoxy
2	Plunger	Stainless steel 1.4105
3	Toggle pin	PTFE
4	O-ring	FKM (for SKU 17841)
5	Closing body	FKM (for SKU 17841)
6	Housing	Brass
7	O-ring	FKM (for SKU 17841)
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
Brass	15	Threaded	G 1/2	14
Brass	20	Threaded	G 3/4	16

Installation and Safety

Risk of injury from high pressure

Before loosening lines or valves, switch off the pressure and vent the lines.

Risk of injury from electric shock

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

Preparatory Work

• Clean pipelines of any contamination.
• Install a dirt trap upstream of the valve inlet (≤ 500 µm).
• The valve body must not be installed under tension.
• Pay attention to flow direction: The arrow or letters on the body indicate the flow direction: from P → A (NC).

Manual Override

Escaping medium due to loss of O-rings

Loss of O-rings leads to valve leakage. Medium may escape.

When the manual override is locked, the valve can no longer be electrically actuated. To override the valve manually, press the manual override and turn it 90° clockwise until it stops.

Electrical Connection

Protective Conductor

If there is no protective conductor function between the coil and the body, there is a risk of electric shock. Always connect the protective conductor and check electrical continuity.

• Observe the voltage and current type according to the type label.
• Screw the cable plug tight, ensuring a maximum torque of 1 Nm.
• Check that the valve seal is correctly seated.