Burkert Type 6213 (SKU 20076680) is a servo-assisted 2/2-way diaphragm valve designed for controlling, shutting off, and dosing neutral media with a viscosity of up to 21 mm²/s. 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 of 0.5 bar for full opening. The 20076680 model features a stainless steel body, FKM seals, and operates on 24 V DC.

General Technical Data

Feature	Specification
Duty cycle	100% continuous operation
Degree of protection	IP65 in accordance with DIN EN 60529/IEC 60529 with cable plug
Thermal insulation class	Epoxy coil class H
Voltage tolerance	±10%
Installation position	As required, preferably with actuator upright

Material Specifications

The sectional view shown corresponds to the standard variant. 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
5	Magnetic core	Stainless steel 1.4113
6	O-ring	FKM
7	Plunger seal	NBR, FKM, EPDM
11	Diaphragm	NBR, FKM, EPDM
13	Valve body	Brass, stainless steel 1.4408, Gunmetal with external thread

Dimensions

Standard variant with brass and stainless steel body.

Safety Instructions

• Danger from high pressure: Before loosening lines and valves, turn off the pressure and vent the lines.
• Danger due to electrical voltage: Before reaching into the device or the system, switch off the power supply and secure it against reactivation.
• Risk of burns: Keep the device away from highly flammable substances and media and do not touch with bare hands during continuous operation.

Installation Approach

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