G2'' Brass 230VUC ATEX Solenoid Valve Burkert 6281 278250

Notice: This product is discontinued

Discontinued
G2'' Brass 230VUC ATEX Solenoid Valve Burkert 6281 278250
G2'' Brass 230VUC ATEX Solenoid Valve Burkert 6281 278250
Reference: 278250
Brand: Burkert

Bürkert 2/2-way solenoid valve (type 6281) with G2'' threads and a 230V UC coil. Normally closed (voltage = open) and indirect operating, so a small differential pressure required. For media with max 80°C at a differential pressure of 0.2-16 bar. Housing of brass with NBR sealing and a 40 mm orifice. The Kv-value is 30 m3/h (500 l/min at dp=1 bar water). Low risk of water hammer thanks to dampened closing. Certified up to ATEX zone 1.


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Note: product cannot be returned

Notice: This product is discontinued

Description
Specifications
Downloads
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Description

Bürkert indirect operating 2/2-way solenoid valve with G2'' inner threads and 230V UC (alternating or direct current) coil. The valve has a brass housing with NBR sealing and an orifice size of 40 mm. The circuit function of the solenoid valve is normally closed, which means the valve opens when voltage is applied. Suitable for systems with a differential pressure of 0.2-16 bar and a maximum temperature of 80°C. The valve has a Kv-value of 30 m3/h, this translates to a flow rate of 500 l/min at the differential pressure of 1 bar (for water). The brass housing is durable, suitable for neutral fluids and resistant to many chemicals. The NBR (nitrile rubber) sealing is suited for water, air, alcohol and is fairly resistant to oil and petrol. NBR is unsatisfactory with oxidising fluids. Please note that the internal valve parts, such as the stainless steel plunger and springs, are also in contact with the medium and must be chemically compatible. Consult our chemical resistance chart to verify compatibility of housing and seals with the medium. The valve's design prevents water hammering. Energy efficient design for a long product lifecycle. The valve is certified for ATEX Ex-Zone 1, so it can be used in potentially explosive environments requiring this certification. The valve has an IP65 rating if properly connected.

Important advantages

  • ATEX certified up to Ex-Zone 1
  • Energy-saving design which ensures a low heating of the medium and, in addition, a long service life
  • The risk of water hammer is low, thanks to the dampened closing
  • Good protection against the environment thanks to the IP65 rating
  • Type 6281 is ideal for the control of larger flows
  • Bürkert design: proven reliability & durability

6281 series

The Bürkert 6281 valve is an indirect operated solenoid valve of the S.EV series. To open and close, the valve features a large flexible rubber membrane. The pressure difference over the inlet and outlet ports is used to move the membrane up and down. Therefore, always a minimal pressure differential is required. Thanks to the special design of the membrane and valve seat, the valve operates quietly. The brass housing satisfies all European drinking water requirements. The 6281 series is available with a wide variety of options, such as other housing materials, ATEX versions and a manual override feature.

Please note: this product is made to order and can therefore unfortunately not be returned.

Downloads

Manual Burkert 6281 (EN)
pdf
Download
CAD burkert-6281-278250.zip
zip
Download

Specifications

Connection size
Choose a connection size that matches the size of the pipe or hose it will be connected to. Alternatively, you can size the valve based on the Kv value for more accuracy.
2 inch
Connection type
Type of connection used for the valve ports.
Inner thread cylindrical BSPP-G
Function
The circuit function of a solenoid valve specifies how fluid will flow between the valve's ports when it is energized or de-energized.
Normally closed
Voltage
Choose the voltage required to operate the valve. AC stands for alternating current, DC for direct current.
230 V AC, 230 V DC
Material
Choose a housing material that is not corroded by the media and environment, and can withstand the temperatures and pressures. Check out our chemical resistance chart.
Brass
Seal material
The choice mostly depends on chemical resistance, temperature and pressure ratings. Use our chemical resistance chart to search for compatibility with specific substances.
NBR (nitrile rubber)
Operation
The operating principle of the solenoid valve.
Indirect
Recommended for
Type of fluid or gas that the valve is recommended for.
Water (up to 60°C), Air, Oil, Alcohols, Lubricant
Min pressure difference (bar)
Minimum pressure difference required for the valve to operate effectively. If the pressure difference is lower, the valve might not operate properly.
0.2
Max pressure (bar)
Maximum pressure difference between the inlet and outlet port.
16
Features
Choose any special solenoid valve features that are important for your application.
Energy efficient (under 9 VA), Anti-waterhammer
Approval
Certifications or approvals indicating safety, quality, or performance standards met.
Atex Zone 1, Atex Zone 21, Atex Zone 2, Atex Zone 22
Valve bore (mm)
The valve bore is the diameter of the orifice, which the media flows through. It has a high impact on the flow rate.
40
Kv value [m3/h]
Kv is a measure of the flow rate of water in m3/h at a pressure drop of 1bar. Use the Kv calculator to calculate the required Kv for your application. Imperial units: Cv=1.16xKv.
30
Min temperature (°C)
The minimum temperature of the fluid at which the valve can operate continuously.
-10
Max temperature (°C)
The maximum temperature of the fluid at which the valve can operate continuously.
80
Electrical connection
Type of electrical connection used to connect a power supply to the valve.
Moulded cable
Degree of protection (IP)
The Ingress Protection (IP) rating indicating the product's resistance to dust and water, crucial for outdoor or harsh conditions.
IP65
Nominal power (VA)
Rated power consumption of the valve.
9
Valve ports/positions
Number of ports and positions, e.g. 2/2-way means 2 ports (in/out) and 2 positions (open/closed)
2/2 way
Voltage-type
The type of voltage required for the solenoid valve to operate correctly. Common options include AC or DC voltage.
AC/DC
Flange compression class
The rating that specifies the maximum pressure that the valve can withstand without leaking or failing, based on the flange connection type.
PN 16
Max. ambient temp. (°C)
The highest temperature at which the solenoid valve can operate safely and effectively without experiencing damage or failure.
60
Duty cycle
The maximum amount of time that the solenoid valve can remain energized before it becomes too hot and risks damage or failure.
100%
Peak power (VA)
The maximum amount of electric power that the solenoid valve coil can safely handle without overheating or failing.
11
Indirect effect
Yes
Explosion safety
Ex-Zone 1

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