Buerkert Type 6440 Servo-assisted 2/2-way piston valve (20056552)

Name: Buerkert Type 6440 Servo-assisted 2/2-way piston valve (20056552)
Brand: Bürkert
SKU: N-BUR.20056552
Price: 375.00 EUR
Availability: InStock

Item No.: N-BUR.20056552

HAN: 20056552

375,00 €

excl. 19% VAT (Paket)

Available

Delivery time: ca. 4 weeks Other countries

Valve function: A - normally closed - inlet port 1 (P/NC) | Main valve orifice 1 (P) (mm): 12 mm | Main valve wetted material: Stainless steel | Seat seal material: EPDM (Ethylene-propylene-diene rubber) | Port connection 1 thread marking: 1/2 | Voltage min / rated voltage: 12 V | Electrical connection sort: Plug KOSTAL MLK1.2 2-pin coding A | Kv value (water): 2,2 m3/h More product details

Product Information

Dimensions and Weight
Item information	Value
Category:	Type 6440 Servo-assisted 2/2-way piston valve
Seat seal material:	EPDM (Ethylene-propylene-diene rubber)
Valve function:	A - normally closed - inlet port 1 (P/NC)
Kv value (water):	2,2 m3/h
Electrical connection sort:	Plug KOSTAL MLK1.2 2-pin coding A
Main valve orifice 1 (P) (mm):	12 mm
Main valve wetted material:	Stainless steel
Voltage min / rated voltage:	12 V
Port connection 1 thread marking:	1/2
Item weight:	0,00 kg

Product Description

Servo-assisted 2/2-way piston valve

The valve 6440 is a servo-assisted piston valve. The stopper and the core guide tube are welded together to increase pressure resistance and leak-tightness. The coils are moulded with highly chemically resistant epoxy. Sliding rings increase the service life for dry gases. Cartridge and flange connections, and solenoids with automotive plugs (IP6K9K), are available for optimised use in fuel cells.

Technical data

Valve & function (11)

Type	6440
Operation	force-controlled
Actuator type	Plunger valve
Main valve operating principle	Globe valve
Switch function	on/off
Media separation	No
Valve function	A - normally closed - inlet port 1 (P/NC)
Valve function number of switching positions	2
Flow	Above seat
Core guide	Sliding ring
Valve construction	Valve complete

Pilot control (1)

Pilot control seal material	EPDM (Ethylene-propylene-diene rubber)

Manual override (1)

Manual actuation	No

Performance data (15)

Nominal pressure min	0 bar
Nominal pressure max (gas)	20 bar
Nominal pressure max (liquid)	20 bar
Main valve orifice 1 (P) (mm)	12 mm
Main valve orifice 1 (inch)	7/16 inch
Kv value (water)	2,2 m3/h
Switch time open min	20 ms
Switch time open max.	30 ms
Switch time close min	120 ms
Switch time close max.	200 ms
Valve setting opening time	No
Valve setting closing time	No
Installation length	55 mm
Leakage rate internal	10^-4 mbar l/sec
Leakage rate external	10^-4 mbar l/sec

Fluid connections (7)

Fluidic port connection number	2
Port connection 1 type	Internal thread
Port connection 1 thread type	G
Port connection 1 thread marking	1/2
Port connection 2 type	Internal thread
Port connection 2 thread type	G
Port connection 2 thread marking	1/2

Materials (8)

Main valve wetted material	Stainless steel
Valve seat material	Stainless steel
Medium-contacting part core material	Stainless steel
Medium-contacting part stopper material	Stainless steel
Seat seal material category	Elastomers
Seat seal material	EPDM (Ethylene-propylene-diene rubber)
Sealing toward outside material	EPDM (Ethylene-propylene-diene rubber)
Sliding ring material	PTFE (Polytetrafluorethylene)

Temperature & protection (5)

Temperature environment min	-40 °C
Temperature environment max	85 °C
Temperature medium min	-40 °C
Temperature medium max	90 °C
Protection type IP (max. with suitable connector)	IP6K9K

Electrical data (12)

Voltage min / rated voltage	12 V
Voltage max / rated voltage	12 V
Voltage tolerance negative	25 %
Voltage tolerance positive	33 %
AC voltage	No
DC voltage	Yes
Battery voltage	Yes
Rated power DC	32 W
Reduced power DC	19,5 W
Rated power consumption	19,5 W
Thermal insulation class of the actuator	H
Nominal operation/Duty cycle	100 %

Electrical connection (4)

Electrical connection sort	Plug KOSTAL MLK1.2 2-pin coding A
Electrical connection number of contacts	2
Cable plug in delivery	not included
Electrical connection position	in direction of flow left

Solenoid coil (8)

Coil type	placed on top
Coil insulation material (encasement)	Epoxy
Coil size	42 mm
Kick and Drop coil	Energy saving technology not available
Coil wiring overvoltage protection	without
Coil wiring rectifier	No
Coil wiring polarity recovery diode	No
Power reduction integrated	No

Versions & options (8)

Back-pressure-resistant version	No
Vacuum version	No
Analysis version	No
Oxygen version	No
Oil burner valve	No
Steam version	No
Low-noise version	No
Main valve with integrated screen	No

Shipping & customs (5)

Weight	0,001 kg
Weight	0,001 kg
Customs tariff number	84818079
Country of origin	Germany
Export	Not subject to export licensing

Product benefits

Safety shut-off valve in fuel cell systems and other hydrogen applications
Very compact solenoid valve with reliably high tightness and service life
Available for up to orifice 12 mm and pressure range 40 bar
Available as flange or cartridge variant for quick system integration
Degree of protection IP65 or IP6K9K with automotive plug

Your Benefits With Us

Worldwide shipping of all valves and flow meters
Large stock levels for many products – current lead time available on request
Spare parts and service kits available
Fast shipping via UPS (parcel) or freight forwarder (pallets), express delivery available on request
Extensive hands-on application know-how
Personal advice on selecting the right component
Resellers receive volume-based discounts on request
Large companies, public authorities and government agencies can order on account (request via our contact form)

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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

Buerkert Type 6440 Servo-assisted 2/2-way piston valve (20056552)

Dimensions and Weight