Burkert Type 6281 - Servo-assisted 2/2-way diaphragm valve (20028055)

SKU: BUR.20028055

HAN: 20028055

Category: Type 6281 - Servo-assisted 2/2-way diaphragm valve

Low stock level

325,58 €

incl. 19% VAT ,

Manufacturers:

Bürkert

The 6281 valve is a servo-assisted solenoid valve of the S.EV series. A minimum differential pressure is always required for the function of the valve. Various diaphragm material combinations and methods of operation are available depending on the application. The standard brass housing satisfies all European drinking water requirements. Dezincification-resistant brass is available for other markets. The housing offering is rounded out by a stainless steel version. To reduce power consumption in operation, coils with "Kick and Drop" (KD) electronics assembly (double coil technology) are available. The valve can be equipped with manual override for easy maintenance and commissioning. NEMA 4X is available on request.

Servo-assisted diaphragm with diameter of up to DN50
Vibration-proof, central screwed coil system
Damped design for quiet closing
Energy-saving double coil technology with kick and drop variant
Explosion-proof versions

Item information	Value
Seat seal material:	FKM (Fluor rubber)
Line connection 1:	Inner thread-1-NPT-
Voltage max / rated voltage:	120 V
Nominal pressure min:	0,2 bar
Operation:	servo-controlled
Valve function:	B - normally open - inlet port 1 (P/NO)
Nominal pressure max (liquid):	16 bar
Temperature medium:	0 °C-60 °C-
Fluidic port connection number:	2
Valve function number of switching positions:	2
Valve function:	B - normally open - inlet port 1 (P/NO)
Manual actuation:	No
Port connection 1 type:	Inner thread
Port connection 1 thread marking:	1
Port connection 1 thread type:	NPT
Port connection 2 type:	Inner thread
Port connection 2 thread type:	NPT
Port connection 2 thread marking:	1
Type:	6281
Voltage min / rated voltage:	120 V
Voltage max / rated voltage:	120 V
Voltage frequency:	50/60 Hz
Voltage tolerance positive:	10 %
Voltage tolerance negative:	10 %
AC voltage:	Yes
DC voltage:	No
Battery voltage:	No
Main valve wetted material:	Brass
Back-pressure-resistant version:	No
Nominal pressure min:	0,2 bar
Nominal pressure max (liquid):	16 bar
Temperature medium min:	0 °C
Temperature medium max:	60 °C
Nominal pressure (DIN EN 1333):	PN 16
Temperature environment min:	-40 °C
Temperature environment max:	55 °C
Seat seal material category:	Elastomer
Seat seal material:	FKM (Fluor rubber)
Sealing toward outside material:	FKM (Fluor rubber)
Rated power consumption:	9 W
Kv value (water):	12 m3/h
QNn value (gas):	13.000 l/min
Pilot control seal material:	FKM (Fluor rubber)
Main valve orifice 1 (P) (mm):	25 mm
Main valve orifice 1 (inch):	1 inch
Pilot control orifice (mm):	1,4 mm
Actuator type:	Plunger valve
Operation:	servo-controlled
Media separation:	No
Flow:	Above seat
Generation:	EV
Main valve operating principle:	Diaphragm valve
Valve construction:	Valve complete
Switch function:	on/off
Switch time open min:	120 ms
Switch time open max.:	1.500 ms
Switch time close min:	200 ms
Switch time close max.:	3.500 ms
Nominal operation/Duty cycle:	100 %
Vacuum version:	No
Analysis version:	No
Oxygen version:	Yes
Valve setting opening time:	No
Valve setting closing time:	No
Oil burner valve:	No
Steam version:	No
Installation length:	95 mm
Main valve with integrated screen:	No
Electrical connection sort:	Plug pattern form A according to DIN EN 175301-803
Electrical connection number of contacts:	2 + Grounding conductor
Cable plug in delivery:	not included
Pilot control centrally bolted:	Yes
Electrical connection position:	in direction of flow left
Low-noise version:	Energy saving technology possible
Coil type:	No
Coil insulation material (encasement):	placed on top
Coil size:	Epoxy
Coil wiring overvoltage protection:	40 mm
Protection type IP (max. with suitable connector):	IP65
Coil wiring rectifier:	without
Coil wiring polarity recovery diode:	No
Thermal insulation class of the actuator:	for high temperatures
Coil special feature:	No
inrush power consumption AC:	H
Rated power AC:	30 V·A
Medium-contacting part core material:	24 V·A
Medium-contacting part stopper material:	Stainless steel
Parts free of oil and grease:	Yes (according to DIS 1000020797)

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Manufacturer according to GPSR
Christian Bürkert GmbH & Co. KG, Christian-Bürkert-Straße 13-17, 74653 Ingelfingen, Baden-Württemberg, Deutschland, [email protected], https://www.buerkert.de

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Manufacturer information:

Christian Bürkert GmbH & Co. KG
Christian-Bürkert-Straße 13-17
Baden-Württemberg
Ingelfingen, Deutschland, 74653
[email protected]
https://www.buerkert.de

Manufacturer according to GPSR
Christian Bürkert GmbH & Co. KG, Christian-Bürkert-Straße13-17, 74653 Ingelfingen, Baden-Württemberg, Deutschland, [email protected], https://www.buerkert.de