BURKERT 20069398 (Type 6211) is a servo-assisted normally closed 2/2-way solenoid valve with a servo diaphragm, designed especially for use with neutral fluids and gaseous media. The valve features low power consumption, low weight, and a compact body. It is normally closed by spring force (Circuit function A). When energized, the solenoid opens the pilot valve first, and then the medium pressure opens the main valve due to the pressure drop above the diaphragm. The special design and geometry of the inner parts result in a soft closing function and cause almost no water hammer.

Product Structure and Materials

No.	Element	Material
1	Nut	Thick-film passivated surface (brass variant) Stainless steel (PPE/PA body, stainless steel body)
2	Stopper	Stainless steel 1.4113
3	Short circuit ring	Copper Silver (with stainless steel body)
4	Core	Stainless steel 1.4113
5	Core seal	NBR, FKM, EPDM
6	Spring	Stainless steel 1.4310
7	O-ring	FKM, EPDM
8	Flange	Thick-film passivated surface (brass variant) Nickel-plated surface (PPE/PA body, stainless steel body)
9	Coil	Epoxy
10	Body cover	PPE/PA
11	Body	Brass Stainless steel PPE/PA
12	Diaphragm	NBR, FKM, EPDM
13	Diaphragm holder	PPS in combination with brass or stainless steel parts
14	O-ring	NBR, FKM, EPDM

Technical Data

Property	Value
Operating medium	Neutral and slightly aggressive gases and liquids which do not attack the housing and sealing materials.
Medium temperature	With NBR: 0 °C...+70 °C (with PPE/PA body 0 °C...+50 °C) With FKM: 0 °C...+70 °C (with PPE/PA body 0 °C...+50 °C)
Ambient temperature	Max. +55 °C (with PPE/PA body +50 °C)
Viscosity	Max. 21 mm²/s
Duty cycle	100 % continuous operation
Degree of protection	IP65 with cable plug and ATEX/IECEx cable variant
Installation position	As required, preferably with actuator upright

Switching Time

Measurement +20 °C, 6 bar at valve outlet, opening: pressure build-up 0…90 %, closing: pressure drop 100…10 %

• DN 10: Opening: 10...25 ms | Closing: 100...120 ms
• DN 13: Opening: 30...50 ms | Closing: 130...200 ms
• DN 20: Opening: 100...400 ms | Closing: 500...700 ms

Approvals and Conformities

• Explosion protection: Optional ATEX (II 2G Ex mb IIC T4 Gb / II 2D Ex mb IIIC T130 °C Db) and IECEx (Ex mb IIC T4 Gb / Ex mb IIIC T130 °C Db) valid for coils with fixed cable outlet.
• North America (USA/Canada): Valid for coils: UL Recognized for the USA and Canada according to UL 429 and CAN/CSA-C22.2 No. 139.
• Drinking water: Suitable for use in drinking water applications. The materials comply with the assessment principles (UBA) for materials in contact with drinking water. PF36: Suitable for products with a maximum temperature of +60 °C (warm water).

Dimensions

Standard Variant (Brass and Stainless Steel Body)

DN	A	B	C	D	E	G (F1/G1)	L	SW
10	71.5	82.5	32	32	22	12 / G 1/4 12 / G 3/8	50	22
10 (Brass only)	73.5	87	24.5	14	14	14 / G 1/2	50	27
10 (SS only)	73.5	87	24.5	14	14	14 / G 1/2	55	27
13 (Brass only)	76	89.5	42	46	27.25	12 / G 3/8	58	27
13	76	89.5	42	46	32.5	14 / G 1/2	65	27
13	78	94	42	46	32.5	16 / G 3/4	65	32
20	85	105.5	60	60	50	16 / G 3/4 18 / G 1	100	41

Standard Variant (Plastic Body PPE/PA)

DN	A	B	C	D	GA	L	E	H	G	F	∅ J
10	69.5	83.5	32	32	G 3/4	73	17	10	G 3/8	13	35
13	76	93	43	49	G 1	85	19	15	G 1/2	13	43

Installation

Risk of injury from high pressure and discharge of medium

Before working on the device or system, switch off the pressure. Vent or drain lines.

Installation in Pipe

1. Observe flow direction: from 1(P) to 2(A).
2. Ensure that the seal surfaces on the body connections are free of any damage.
3. Hold the device on the valve body using an open-end wrench and screw into the pipe.

INFO

Ensure that the O-rings on the valve body and the seal surfaces of the connection housing are not damaged during installation.

Coil Installation

Overheating of coil, fire hazard

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

1. Check the correct positioning of the O-ring on the valve body.
2. Slide the coil onto the core guide tube.
3. Fasten the nut with an open-end wrench. When screwing in, observe the tightening torque of 2.8 Nm.
4. Check protective conductor function.

Cable Plug Installation

1. Attach the cable plug to the contacts on the coil.
2. Check that the seal is properly fitted.
3. Tightly screw cable plug, while observing a tightening torque of 0.3 Ncm.
4. Connect the protective conductor.
5. Check electrical continuity between coil and body.

Spare Parts

• 1: SET1: Coil set
• 2: SET7: Stopper set
• 3: SET3: Wearing part set

TIP

When ordering spare part sets, always give the spare part set number and the identification number of the device.