BURKERT Type 0331 (Article 20128245) is a direct-acting, media-separated pivoted armature solenoid valve. It is configured as a 3/2-way valve with circuit function T, allowing for universal use depending on the application. 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.

This specific model features a PVDF (Polyvinylidene fluoride) body and FKM (Fluor rubber) seals, ensuring high chemical resistance. It operates on 24V DC, handles a pressure range of 0 to 4 bar, and utilizes a Bürkert flange 32 x 46 version A2 connection. The valve is equipped with a manual override for service-friendly start-up and testing.

General Technical Data

Property	Specification
Orifice	3.00 mm (DN 3)
Body Material	PVDF (Polyvinylidene fluoride)
Seal Material	FKM (Fluor rubber)
Voltage	24 V DC
Pressure Range	0 - 4 bar
Medium Temperature	0 °C to +80 °C
Ambient Temperature	Max. +55 °C
Viscosity	Max. 37 mm²/s
Degree of Protection	IP65 with correctly connected cable plug
Installation Position	As required, preferably with actuator upright

Duty Cycle

For PP and PVDF bodies, the duty cycle is 40% (60% intermittent operation) in 30 min for the 8 W variant, or 100% continuous operation for the 5 W variant.

Circuit Function

The 20128245 model operates with Circuit Function T (CF T).

Circuit function T (CF T): 3/2-way solenoid valve, direct-acting, flow direction optional, normally closed.

Dimensions

The following dimensions apply to the plastic body variant (PVDF).

(Note: Dimensions in mm. The dimensions of the cable plug Type 2518 or 2509 can be found in their respective data sheets.)

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.

Before Installation

• The installation position is flexible, but preferably with the actuator at the top.
• Check pipelines for soiling and clean if required.
• For safe operation of the solenoid valve, a dirt trap (≤ 500 µm) must be installed before the valve inlet.

Electrical Connection

• Connect L1/+ and N/– to terminals 1 and 2 independently of the polarity.
• Connect the protective conductor.
• Attach valve seat and check that it fits properly.
• Screw the cable plug in place, observing the maximum torque of 1 Nm.
• Check electrical continuity between coil and body (protective conductor function).