BURKERT 453586 (Type 0331) is a direct-acting, media-separated pivoted armature 3/2-way solenoid valve. The solenoid actuator and the medium chamber are separated from each other by a separating membrane system, making the valve especially suitable for critical media. This specific model features a brass body, NBR sealing, a 2.0 mm orifice, and operates on 24V DC. It is designed with a Bürkert-specific flange connection (32 x 46 version A2) and includes a service-friendly, robust manual override for start-up and testing.

Safety Instructions

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.

Technical Data

Feature	Specification
Valve Function	3/2-way, Circuit function D (normally open)
Orifice	2.0 mm
Port Connection	Flange (Bürkert flange 32 x 46 version A2)
Body Material	Brass
Seal Material	NBR (Nitrile rubber)
Operating Voltage	24 V DC
Pressure Range	0 - 16 bar
Kv value (water)	0.08 m³/h
QNn value (gas)	85 l/min
Medium Temperature	0 °C to +80 °C
Ambient Temperature	Max. +55 °C
Degree of Protection	IP65 (with correctly connected cable plug)
Approvals	UL, CSA (UR Component, Class 3221-01)

Circuit Function

This valve operates with Circuit Function D (CF D): 3/2-way solenoid valve, direct-acting, normally open. Inlet port 1 (P/NO) is connected with outlet port 2 (B/OUT), and exhaust port 3 (R/NC) is closed in the rest position.

Material Specifications

No.	Element	Material
1	Coil	Epoxy
2	Diaphragm	NBR (for this specific model)
3	O-ring	NBR (for this specific model)
4	Seat	Brass (for this specific model)
5	Valve body	Brass (for this specific model)

Dimensions

The following dimensions apply to the standard metal body variant.

Installation Note

The installation position is flexible, but it is recommended to install with the actuator pointing upwards. For safe operation of the solenoid valve, a dirt trap (≤ 500 µm) must be installed before the valve inlet.