BURKERT Type 6213 is a servo-assisted 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. A minimum differential pressure is required for full opening. For gas and vacuum applications, a special variant is available (HP00) that opens the valve without differential pressure. Various diaphragm materials are available depending on the actual application. The body is available in brass, stainless steel, and gunmetal. To reduce electrical power consumption during operation, coils with integrated Kick-and-Drop (KD) electronics featuring double coil technology are available.

Features

• 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
• High flow rate with a compact design
• Energy-saving double coil technology with kick and drop variant

General Technical Data

Property	Value
Seal Material	NBR, FKM, EPDM
Body Material	Brass acc. to DIN EN 50930-6, Stainless steel 1.4408, Gunmetal (external thread) DN 10...DN 20
Coil Material	Polyamide, epoxy (insulation class H)
Orifice	Standard: DN 10...DN 40 HP00: DN 13...DN 20
Circuit Function	A (2/2-way valve, normally closed)
Duty Cycle	100 % continuous operation; KD coil max. 6 switching cycles/minute
Operating Voltage	Standard: 24 V DC, 24 V 50 Hz, 230 V 50 Hz, 110 V 50 Hz, 120 V 60 Hz HP00: 24 V DC, 24 V 50/60 Hz, 230 V 50/60 Hz
Voltage Tolerance	±10%
Degree of Protection	IP65 with cable plug Type 2518 (IP67 on request)

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	Polyamide or epoxy
3	Stopper	Stainless steel 1.4113
4	Shading ring (only AC variant)	with brass body: copper (Cu) with stainless steel body: silver (Ag)
5	Magnetic core	Stainless steel 1.4113
6	O-ring	FKM
7	Plunger seal	NBR, FKM, EPDM
8	Bonnet	PA6
9	Cover	DN 10...DN 25: stainless steel 1.4301 DN 40: brass, stainless steel 1.4408
10	Spring	Stainless steel 1.4310
11	Diaphragm	NBR, FKM, EPDM
12	Diaphragm support	PPSGF40 in combination with brass and accordingly stainless steel parts
13	Valve body	Brass, stainless steel 1.4408, Gunmetal with external thread

Dimensions

Standard Variant with Brass and Stainless Steel Body

Gunmetal Variant with External Thread

Coil Dimensions

ATEX/IECEx Variant

Safety Instructions

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.

WARNING!

Risk of injury due to improper installation

• Installation must be carried out by authorised technicians only and with the appropriate tools.

Risk of injury from unintentional activation of the system and uncontrolled restart

• Secure the system against unintentional activation.
• Ensure a controlled restart after installation.

Installation Approach

1. Clean pipelines of any contamination.
2. Install a dirt trap upstream of the valve inlet (≤ 500 µm).
3. Hold the device on the body using an open-end wrench and screw into the pipeline.
4. Observe the flow direction: the arrow on the body indicates the flow direction.

NOTICE!

Breaking hazard

• Do not use the solenoid as a lever arm.