The BURKERT 389711 (Type 7011) is a direct-acting and compact small plunger valve up to DN 2.4. The stopper and the core guide tube are welded together to increase pressure resistance and leak-tightness. A Bürkert-specific flange variant (SFB) enables the space-saving arrangement of valves on a multiple manifold. In combination with a plug conforming to DIN EN 175301-803 shape B, the valve satisfies degree of protection IP65.

General Technical Data

Product properties	Specification
Orifice	DN 2.0 mm
Circuit function	A (Normally closed)
Thermal insulation class	Epoxy coil class H
Duty cycle	100% continuous operation
Switching time	Opening: 8...15 ms, Closing: 10...17 ms
Operating voltage	24 V / 50 Hz
Voltage tolerance	± 10 %
Operating medium	Neutral gases and liquids (e.g. compressed air, water, hydraulic oil, technical vacuum)
Medium temperature	-10 °C...+100 °C
Viscosity	Max. 21 mm²/s
Port connection	Flange (FK01)
Degree of protection	IP65 with cable plug
Installation position	As required, preferably with actuator upright

Circuit Function

Circuit function A (CF A): 2/2-way solenoid valve, Direct-acting, Normally closed.

Materials

Standard variant circuit function A

No.	Element	Material
1	Nut	DIN 176 Surface finish thick film passivated KOSA0101
2	Stopper	Stainless steel 1.4113/434
3	Core guide tube	Stainless steel 1.4303 ST/305L
4	Shading ring	Copper (optional silver)
5	Core	Stainless steel 1.4113/434
6	Spring	Stainless steel 1.4310/301
7	Seal	FKM
8	Valve body	Brass
9	O-ring	FKM
10	Flange	Surface finish thick film passivated KOSA0101 (brass variant)
11	Coil	Epoxy

Dimensions

Flange Variant

INFO

Dimensions in mm. Variants according to industry standard form B.

Port connection	A [mm]	B [mm]	C [mm]	D [mm]
Flange CF A	-	-	20	10

Flange Pattern

TIP

On the connection side, the geometries are to be realised as shown in the following drawing. Flange variant (FK01) according to FST 1000225877.

Performance Specifications

Power consumption (Standard variant, coil size 24.5 mm)

Coil	Orifice [mm]	Inrush AC [VA]	Hold AC [VA]	Hold AC [W]	Opening [ms]	Closing [ms]
24 V / 50 Hz / 6 W	2.0	14	8	6	8...15	10...17

Measurement at +20 °C, 6 bar at the valve outlet acc. to DIN ISO 12238:2001, opening: pressure build-up 0...10 %, closing: pressure reduction 100...90 %.

Installation and Safety

Risk of injury due to high pressure

Before working on the system or device, switch off the pressure and ventilate and empty the lines.

Risk of injury from electric shock

Before working on the system or device, switch off the power supply and secure against reactivation. Always connect the protective conductor and check electrical continuity between the solenoid and the body.

Installation Guidelines

• Installation position: Any, preferably solenoid facing upward.
• Preparation: Check pipelines for soiling and clean if required. Install a dirt trap to protect against disruptions (mesh width: 0.2...0.4 mm).
• Flange mounting: Ensure that the seals supplied fit the valve properly. Ensure that the manifold is level and has sufficient surface quality. Screw the body onto the manifold, observing a maximum tightening torque of 1 Nm. Place the solenoid on it and fasten the nut, observing a maximum tightening torque of 2.8 Nm.