BURKERT 20093765 (Type 6213) is a servo-assisted 2/2-way diaphragm valve. The spring coupling of the diaphragm supports the opening process in the valve. In its standard variant, the valve is suitable for deployment with liquids, requiring a minimum differential pressure for full opening. To reduce electrical power consumption during operation, the coil features integrated Kick-and-Drop (KD) electronics with double coil technology.

• Servo-assisted diaphragm valve with a nominal diameter of up to DN 40.
• Spring coupled diaphragm opens without differential pressure.
• Damped design for low noise operation.
• High flow rate with a compact design.
• Energy-saving double coil technology with kick and drop variant.

General Technical Data

Property	Specification
Seal Material	FKM
Body Material	Stainless steel 1.4408
Coil Material	Epoxy (insulation class H)
Valve Inner Parts	Stainless steel and PPS
Duty Cycle	100% continuous operation; KD coil max. 6 switching cycles/minute
Voltage Tolerance	±10%
Viscosity	Max. 21 mm²/s
Degree of Protection	IP65 with cable plug Type 2518
Installation	As required, preferably with actuator upright

Circuit Function

Circuit function A (CF A): 2/2-way solenoid valve, servo-controlled, normally closed.

Material Specifications

The sectional view shown corresponds to the standard variant (DN 20). For other variants and nominal diameters, the sectional view varies.

No.	Element	Material
1	Nut	Steel (thick-film passivated according to RoHS), Stainless steel 1.4305, PTFE-coated
2	Coil	Epoxy
3	Stopper	Stainless steel 1.4113
4	Shading ring	Silver (Ag) for stainless steel body
5	Magnetic core	Stainless steel 1.4113
6	O-ring	FKM
7	Plunger seal	FKM
8	Bonnet	PA6
9	Cover	Stainless steel 1.4301 (DN 10...DN 25)
10	Spring	Stainless steel 1.4310
11	Diaphragm	FKM
12	Diaphragm support	PPSGF40 in combination with stainless steel parts
13	Valve body	Stainless steel 1.4408

Dimensions

Dimensions in mm. The dimensions F1 and G1 apply to G thread. For the DN 10 variant with G 3/8 thread:

• A: 71.1
• B: 82.1
• C: 36
• D: 46
• E: 22
• F1: 12
• G1: G 3/8
• L: 50
• SW: 22

Installation and Safety

DANGER

Risk of injury from high pressure in the system: Before loosening lines or valves, switch off the pressure and vent the lines. Risk of injury from electric shock: Before reaching into the device or the system, switch off the power supply and secure it against reactivation. Observe the applicable accident prevention and safety regulations for electrical devices.

Installation Guidelines

• Clean pipelines of any contamination before installation.
• Install a dirt trap upstream of the valve inlet (≤ 500 µm).
• Hold the device on the body using an open-end wrench and screw into the pipeline. Do not use the solenoid as a lever arm.
• Observe the flow direction: the arrow on the body indicates the flow direction.

Overheating Risk

Connecting the solenoid without a pre-installed valve will cause overheating and destroy the solenoid. Only connect the solenoid after the valve has been installed.