BURKERT 20112210 (Type 0330) is a direct-acting, media-separated pivoted armature solenoid valve designed for universal 3/2-way applications. This specific configuration features a robust brass body, NPT 1/4 internal thread connections, and a 12V DC epoxy-molded coil. The solenoid actuator and the medium chamber are separated from each other by an FKM (Fluor rubber) isolating diaphragm system, making it highly suitable for critical and aggressive media.

The 20112210 model is equipped with a manual override for convenient start-up and testing. It carries FM explosion-proof approvals for hazardous locations, ensuring safe operation in demanding industrial environments. With a 2.0 mm orifice, it supports a pressure range of 0 to 12 bar and provides a Kv value of 0.08 m³/h for water.

Circuit Function

This valve operates with Circuit Function T (CF T), which is a 3/2-way solenoid valve, direct-acting, with optional flow direction. It is normally closed in the rest position.

Approvals and Conformities

This specific model features explosion protection certifications suitable for North American hazardous locations:

• FM (Factory Mutual) – Explosion Protection:
  • Class I, Zone 1
  • Class I, Division 1, Groups A, B, C and D
  • Class II + III, Division 1, Groups E, F and G
• Certification Type: XP (US/CA) Class I, II, III Division 1 / Class I, Zone 1, AEx mb IIC T4Gb / Zone 21, AEx mb IIIC T130C Db

Materials

• Coil: Epoxy
• Diaphragm & O-ring: FKM (Fluor rubber)
• Seat & Valve Body: Brass

Material Resistance

The FKM seal material is highly resistant to oxidizing acids and substances, hot oils with additives, salt solutions, waste gases, and oxygen. It supports a medium temperature range of 0 °C to +90 °C.

Performance Specifications

Pressure Range and Flow Rate (Metal Body, Circuit Function T, DN 2.0)

Circuit Function	DN (mm)	Kv value water (DC)	Pressure range (Standard)	Pressure range (Vacuum)
T	2.0	0.08 m³/h	0...12 bar	-0.98...8 bar

Note: Measurement at +20 °C, 6 bar at the valve outlet. Pressure data represents overpressure to atmospheric pressure. Vacuum is possible for all seal materials.

Dimensions

Metal Body (Brass)

D1	L1	D2	L2
G 1/8	9 mm	-	-
G 1/4	9 mm	NPT 1/4	7.5 mm

Note: The dimensions D2 and L2 apply to the NPT thread used in this model. For metal bodies, the minimum thread length at the middle connection is 7.5 mm.

Installation and Electrical Connection

Safety Instructions

• Risk of injury from high pressure: 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.

• Installation Position: As required, preferably with the actuator upright.
• Dirt Trap: For safe operation of the solenoid valve, a dirt trap (≤ 500 µm) must be installed before the valve inlet.
• Electrical Connection: This model utilizes a conduit connection suitable for hazardous locations. Ensure the protective conductor is connected and check electrical continuity between the coil and body.