BURKERT 359433 (Type 0331) is a direct-acting, media-separated pivoted armature valve. 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 specific model 359433 is a 2/2-way normally closed valve (Circuit Function A) featuring a 4.0 mm orifice, stainless steel body, FKM seal, and a flange connection, operating at 24V DC.

Key Features

• Direct-acting, media-separated valve: Suitable for critical and aggressive media.
• Pivoted armature technology: Maintenance-free design ensuring a long service life.
• Manual override: Service-friendly and robust manual override for start-up and testing.
• High-quality materials: Stainless steel body with FKM seals for excellent chemical resistance.

Circuit Function

The 359433 model operates with Circuit Function A (CF A).

Symbol	Description
	Circuit function A (CF A) 2/2-way solenoid valve Direct-acting Normally closed

Technical Data

Property	Value
Orifice	DN 4
Body Material	Stainless steel (1.4401)
Seal Material	FKM
Port Connection	Flange interface according to Bürkert standard
Voltage	24 V DC
Pressure Range	0 - 5 bar
Medium Temperature	0 °C to +90 °C
Ambient Temperature	Max. +55 °C
Viscosity	Max. 37 mm²/s
Duty Cycle	100% continuous operation
Degree of Protection	IP65 with cable plug

INFO

Operating Medium: With FKM seals, the valve is suitable for oxidizing acids and substances, hot oils with additives, salt solutions, waste gases, and oxygen.

Material Specifications

No.	Element	Material
1	Coil	Epoxy
2	Diaphragm	FKM
3	O-ring	FKM
4	Seat	Stainless steel (1.4401)
5	Valve body	Stainless steel (1.4401)

Dimensions

The following dimensions apply to the standard variant with a metal body (stainless steel).

WARNING

Installation Safety: Before working on the equipment or device, switch off the pressure and deaerate/drain lines. Ensure the power supply is switched off and secured against reactivation.