BURKERT 356582 (Type 6213) is a servo-assisted 2/2-way diaphragm valve designed for controlling and shutting off neutral media. The spring coupling of the diaphragm supports the opening process in the valve, allowing it to open without differential pressure. This specific model features a brass body, FKM seal, NPT 3/8 port connection, and operates on 24V DC. It is an explosion-proof ATEX/IECEx variant equipped with a 3-meter wire cable.

Features

• Servo-assisted diaphragm valve with nominal diameter DN 10
• Spring coupled diaphragm opens without differential pressure
• Damped design for low noise
• High flow rate with compact design
• Explosion protection according to ATEX and IECEx

Technical Data

Property	Value
Orifice	10.00 mm (3/8 inch)
Port Connection	NPT 3/8
Body Material	Brass
Seal Material	FKM (Fluor rubber)
Pressure Range	0.50 - 10.00 bar
Medium Temperature	0 °C to +90 °C
Operating Voltage	24 V DC
Kv Value (Water)	1.9 m³/h
Electrical Connection	Wire cable, 3000 mm
Degree of Protection	IP65

Explosion Protection

This variant is approved for hazardous locations:

• ATEX / IECEx: II 2 G mb IIC T4 Gb; II 2 D mb IIIC T130 °C Db

Safety Instructions for ATEX/IECEx

The maximum medium temperature must never exceed the permitted temperature class (T4: +135 °C) minus 5 K.

Material Specifications

No.	Element	Material
1	Nut	Steel (thick-film passivated), 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	FKM
8	Bonnet	PA6
10	Spring	Stainless steel 1.4310
11	Diaphragm	FKM
13	Valve body	Brass

Dimensions (ATEX/IECEx Variant)

Note: Dimensions in mm. The dimensions F2 and G2 apply to NPT thread.

DN	A	B	C	D	E	F2	G2	L	SW
10	71.2	82.2	36	45.6	22	10.3	NPT 3/8	50	22

Installation and Safety

Risk of injury from high pressure

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 Approach:

• Clean pipelines of any contamination.
• Install a dirt trap upstream of the valve inlet (≤ 500 µm).
• Observe the flow direction: the arrow on the body indicates the flow direction.
• 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.