Bürkert Type 6213 is a servo-assisted diaphragm valve with a nominal diameter of up to DN 40. 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. For other markets, dezincification-resistant brass is available. To reduce electrical power consumption during operation, coils with integrated Kick-and-Drop (KD) electronics featuring double coil technology are available.

General Technical Data

Product properties
Dimensions	See Dimensions section
Material
Seal	NBR, FKM, EPDM
Body	Brass acc. to DIN EN 50930-6, Stainless steel 1.4408, Gunmetal (external thread) DN 10...DN 20
Coil	Polyamide, epoxy (insulation class H)
Valve inner parts	Brass body: brass, stainless steel and PPS Stainless steel body: stainless steel and PPS Gunmetal body: stainless steel and PPS (external thread) DN 10...DN 20
Orifice	Standard: DN 10...DN 40 HP00: DN 13...DN 20
Circuit function	A (2/2-way solenoid valve, Servo-controlled, Normally closed)
Thermal insulation class	Epoxy coil class H
Performance data
Duty cycle	100 % continuous operation; KD coil max. 6 switching cycles/minute
Switching time AC/DC	DN 10...13: Opening 10...100 ms, Closing 100...200 ms DN 20: Opening 200...300 ms, Closing 400...700 ms DN 25...40: Opening 300...400 ms, Closing 800...1400 ms
Electrical data
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%
Medium data
Operating medium	Medium that does not attack the housing and sealing materials
Medium temperature	With NBR: -10 °C...+80 °C With FKM: 0 °C...+90 °C (polyamide coil), 0 °C...+120 °C (epoxy coil) With EPDM: -30 °C...+90 °C (polyamide coil), -30 °C...+100 °C (epoxy coil)
Viscosity	Max. 21 mm²/s
Product connections
Port connection	G, NPT, Rc (1/4 to 2)
Environment and installation
Installation	As required, preferably with actuator upright
Ambient temperature	Standard variant: Max. + 55 °C AC10 (10 switching cycles/min): Max. + 70 °C AC19 (10 switching cycles/min): Max. + 70 °C

Approvals and Conformities

• Explosion protection: Optional ATEX/IECEx Category 2 (Zone 1/21).
• North America: Optional UL Listed, UL Recognized, CSA, and FM (Factory Mutual) Explosion Protection.
• Drinking water: Suitable for use in drinking water applications (UBA assessment principles). French ACS approval available.
• Fire protection on railway vehicles: Optional compliance with DIN EN 45545 parts 2 and 5.
• Safety shut-off valves: Complies with DIN EN ISO 23553-1 (automatic and semi-automatic valves suitable for oil).
• VDE: Optional Certificate of conformity with factory surveillance.

Materials

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)	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...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 (Brass and Stainless Steel Body)

DN	A	B	C	D	E	G1	NPT G2	Rc G3	L	SW	Coil size
10	71.1	82.1	36	46	22	G 1/4	NPT 1/4	-	50	22	5 and 6
10	71.1	82.1	36	46	22	G 3/8	NPT 3/8	Rc 3/8	50	22	5 and 6
10	73.1	86.6	24.5	14	24.5	G 1/2	NPT 1/2	Rc 1/2	50	27	5 and 6
13	82.6	95.9	44.5	56.7	27.25	G 1/2	NPT 1/2	Rc 1/2	58	27	5 and 6
13	84.6	100.6	32.5	16	32.5	G 3/4	NPT 3/4	Rc 3/4	65	32	5 and 6
20	97.1	113.1	65	76.6	37	G 3/4	NPT 3/4	Rc 3/4	80	32	5 and 6
20	99.6	120.1	37.5	18	37.5	G 1	NPT 1	Rc 1	80	41	5 and 6
25	143.4	163.4	77	88	46	G 1	NPT 1	Rc 1	95	41	K and L
25	148.3	173.3	46	20	46	G 1 1/4	NPT 1 1/4	Rc 1 1/4	95	50	K and L
40	153.9	178.9	104.5	117	61	G 1 1/4	NPT 1 1/4	Rc 1 1/4	126	50	K and L
40	159.4	189.4	61	22	61	G 1 1/2	NPT 1 1/2	Rc 1 1/2	126	60	K and L
40	165.4	200.4	64	24	64	G 2	NPT 2	Rc 2	132	70	K and L

Gunmetal Variant with External Thread

DN	A	B	C	D	G	L	SW	Coil size
10	73.1	86.1	36	46	G 1/2	80	26	5 and 6
13	84.6	100.6	44.5	56.7	G 3/4	89	32	5 and 6
20	99.6	118.5	65	76.6	G 1	108	37.7	5 and 6
13	104.3	120.3	44.5	56.7	G 3/4	89	32	K and L
20	119.3	139.8	36	76.6	G 1	108	37.7	K and L

Coil Dimensions

Coil size	H	J	K	O	M
5	32	20.5	45	41	3.4
6	40	23.5	51	41	3.4
K	42	27	55.5	64	7
L	65	37.5	72	64	7

ATEX/IECEx Variant

Performance Specifications

Power Consumption (Standard Variant)

Nominal size [mm]	Coil size [mm]	AC Inrush [VA]	AC Holding [VA]	AC Cold [W]	DC Warm [W]	DC Nominal [W]	AC/DC ATEX [W]
10	32	34	14	8	-	-	-
10	40	-	-	10	11	10	9
13	32	36	14	8	-	-	-
13	40	-	-	10	11	10	9
13	42	125	37	16	21	16	-
20	32	38	14	8	-	-	-
20	40	-	-	10	11	10	9
20	42	140	37	16	21	16	-
25	42	150	37	16	-	-	-
25	65	-	-	-	28	21	-
40	42	190	37	16	-	-	-
40	65	-	-	-	28	21	-

Power Consumption (Kick and Drop Coil)

Nominal size [mm]	Coil size [mm]	Cold power Inrush (500 ms) [W]	Cold power Holding [W]	Warm power Holding [W]
10...13	40	20	2	-
13...20	42	44	6.5	5.5
13...20	42 (ATEX)	44	6.5	5.5
13...40	42	85	8.5	7

Installation and Maintenance

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.

Manual Override (Optional)

To manually operate the valve, the hand lever must be turned to a vertical position below the solenoid. Do not over-rotate the hand lever. When the hand lever is actuated, the valve can no longer be switched electrically.

Solenoid Installation

WARNING!

Overheating, risk of fire 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.

1. Slide solenoid housing onto core guide tube.
2. Screw solenoid with nut. Observe tightening torques (AC10: 5 Nm, AC19: 10 Nm).
3. Always tighten nut with an open-end wrench. Using other tools may damage the device.
4. Check protective conductor.