Bürkert 45197 (Type 0331) is a direct-acting, media-separated pivoted armature solenoid valve. It is configured as a 3/2-way variant with Circuit Function C (normally closed). 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 45197 model features a brass body, flange connection, NBR seals, and operates at 48V DC.

Technical Specifications

Attribute	Value
Model	0331 (SKU: 45197)
Valve Function	3/2-way, C - normally closed - inlet port 1 (P/NC), outlet port 2 (A/OUT) connected with exhaust port 3 (R/NO)
Port Connection	Bürkert flange 32 x 46 version A2
Orifice Size	2.00 mm
Body Material	Brass
Seal Material	NBR (Nitrile rubber), Shore hardness 70
Operating Voltage	48 V DC
Pressure Range	0.00 bar - 16.00 bar
Medium Temperature	0 °C to +80 °C
Ambient Temperature	Max. +55 °C
Kv Value (Water)	0.08 m³/h
QNn Value (Gas)	85 l/min
Electrical Connection	Plug pattern form A according to DIN EN 175301-803
Degree of Protection	IP65 (with suitable connector)

Circuit Function

Circuit function C (CF C) 3/2-way solenoid valve, direct-acting, normally closed.

Material Specifications

• Coil: Epoxy
• Diaphragm: NBR (for model 45197)
• O-ring: NBR (for model 45197)
• Seat: Brass (for model 45197)
• Valve body: Brass (for model 45197)

Dimensions

Standard variant - Metal body

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

Safety Instructions

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.

WARNING!

Risk of burns or fire from hot device surfaces due to prolonged activation time

• Keep the device away from highly flammable substances and media and do not touch with bare hands.

Installation

Before installation:

• The installation position is flexible. Preferably: 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.

Installation:

• Pay attention to flow direction: The device will function properly only if the circuit function is observed.
• Devices in flange variant: Fastening the device: using the screws supplied, fasten to base devices or connection plate.
• Tighten the fastening screws on the coil with a maximum torque of 2 Nm.

Electrical Connection

DANGER!

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:

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 (DIN 43 650), Design A) in place, observing the maximum torque of 1 Nm.
5. Check electrical continuity between coil and body (protective conductor function).