BURKERT 453768 (Type 0331) is a direct-acting, media-separated pivoted armature solenoid valve. Configured as a 3/2-way mixing valve (Circuit Function E), it is designed for controlling, shutting off, and dosing neutral and aggressive media. The solenoid coils are moulded with a chemically resistant epoxy. Since the coil system is separated from the medium by a diaphragm, the valve is especially suitable for critical media such as aggressive acids and lyes. The 453768 is equipped with a service-friendly, robust manual override for start-up and testing.

Technical Specifications

Attribute	Value
Circuit Function	3/2-way mixing valve (E)
Port Connection	Flange (Bürkert flange 32 x 46 version A2)
Body Material	Brass
Seal Material	FKM (Fluor rubber)
Voltage	120 V / 60 Hz
Pressure Range	0 to 10 bar
Medium Temperature	0 °C to +90 °C
Orifice	2.0 mm
Kv Value (Water)	0.1 m³/h
Degree of Protection	IP65 (with suitable connector)

Material Specifications

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

Circuit Function

Circuit Function E (CF E) 3/2-way mixing valve (solenoid valve). Normally inlet port 1 (P1/NC) closed, inlet port 3 (P2/NO) connected with outlet port 2 (A/OUT).

Installation and Safety

DANGER!

Risk of injury from high pressure in the system/device ▶ 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.

Installation Note

The installation position is flexible, but preferably with the actuator upright. For safe operation of the solenoid valve, a dirt trap (≤ 500 µm) must be installed before the valve inlet.

Manual Override When the manual override is locked, the valve cannot be electrically actuated. ▶ Press and hold the manual override. ▶ Turn manual override clockwise to lock.