The Burkert 20036867 (Type 0330) is a direct-acting, media-separated 2/2-way pivoted armature solenoid valve. Designed for controlling, shutting off, and dosing neutral and aggressive media, this valve features a PVDF (Polyvinylidene fluoride) body and FKM (Fluor rubber) seals, making it highly resistant to chemicals. The solenoid coil is moulded with a chemically resistant epoxy, and the coil system is separated from the medium by a diaphragm.

This specific model operates with a 24 V DC power supply and features an NPT 1/4 internal thread connection. It has a 3.0 mm orifice and supports a pressure range of 0 to 8 bar. The valve is equipped with a manual override for easy start-up and testing.

Technical Data

Specification	Value
Valve Function	2/2-way, A - normally closed (P/NC)
Actuator Type	Pivot
Orifice Size	3.0 mm
Port Connection	NPT 1/4 Internal thread
Body Material	PVDF (Polyvinylidene fluoride)
Seal Material	FKM (Fluor rubber)
Operating Voltage	24 V DC
Nominal Pressure	0 to 8 bar
Kv Value (Water)	0.25 m³/h
QNn Value (Gas)	270 l/min
Medium Temperature	0 °C to +80 °C
Ambient Temperature	0 °C to +55 °C
Electrical Connection	Plug pattern form A according to DIN EN 175301-803
Degree of Protection	IP65 (with correctly connected cable plug)
Approvals	cURus Recognized

Circuit Function

Circuit Function A (CF A) 2/2-way solenoid valve, direct-acting, normally closed.

Dimensions

The following dimensions apply to the plastic body variant with NPT 1/4 thread.

D	L
NPT 1/4	11 mm

Note: The device can be attached via the existing holes on the bottom side. The hole pattern is 38x24. For plastic bodies, use either self-tapping screws or a body with metric thread inserts. The maximum screw-in depth is 10 mm.

Electrical Connection

Pin Assignment

The pin assignment depends on the circuit function. For Circuit Function A (2-way), the connection is as follows:

Circuit Function	Connection 1	Connection 2	Connection 3
A	P	A	-

DANGER!

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. ▶ There is a risk of electric shock if the protective conductor is not connected. Connect protective conductor and check electrical continuity between coil and body.

Standard Device Connection

1. Connect L1/+ and N/– to terminals 1 and 2 independently of the polarity.
2. Connect the protective conductor.
3. Attach valve seat and check that it fits properly.
4. Screw the cable plug (Type 2518 or 2509 in accordance with DIN EN 175301-803, Design A) in place, observing the maximum torque of 1 Nm.
5. Check electrical continuity between coil and body (protective conductor function).

Installation Notes

Dirt Trap

For safe operation of the solenoid valve, a dirt trap (≤ 500 µm) must be installed before the valve inlet.

NOTICE!

Caution! Risk of breakage ▶ Do not use the coil as a lever arm. ▶ Use PTFE tape as a seal material. ▶ Determine the maximum screw-in depth of the connection threads as these do not comply with any standard. ▶ Hold the device on the body using the appropriate tool (open-ended spanner) and screw into the pipeline.

Manual Override

When manual override is locked, the valve cannot be electrically actuated.

1. Press and hold the manual override.
2. Turn manual override clockwise to lock.