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3280 2/2-Way Proportional Valve
Brand: Burkert Fluid Control Systems
The direct-acting proportional valve of Type 3280 is used for dosing of liquids and gases in closed or open control loops.
The valve features a linear stepper motor as actuator. The integrated electronics simplify the process integration; additional actuation modules are not necessary.
The motor’s power consumption to hold a specific opening position of the valve is zero. This key feature can reduce the energy consumption of a plant dramatically and thus make it more efficient.
Type 3280 is available as standard ON/OFF or proportional valve, as version with integrated positioner and as version with integrated process controller.
Specifications
Ambient Temperature Range
- -10° to 60° C (14° to 140° F)
Applications
- Flow
Approvals & Certifications
- cULus
- UR
BSP Connection
- G 1/2" Female
- G 1/4" Female
- G 3/8" Female
Communication
- Fieldbus
Consumption
- Power (DN 2-6): 8 W, Maximum
- Power (DN 8, 10): 12 W, Maximum
- Power: < 1 W (Holding Position)
Duty Cycle
- 100% Duty Cycle - Depending on Fluid & Ambient Temperature
Electrical Connectors
- M12 Plug (A-Coded, 8-Pin)
- Process Controller: M12 Socket (A-Coded, 5-Pin)
Enclosure, Body Material
- Fluid: Brass
- Fluid: Stainless Steel
- Polycarbonate (PC)
- Polyphenylene Sulfide (PPS)
Environmental Protection
- IP54
Frequency
- Extension Sensor Input (Process Controller Digital): 5 to 2,000 Hz
Hysteresis
- < 5%
Indication
- Status Display: LED
Input
- Positioner Analog, Process Controller Analog (Setpoint): 0-20 mA
- Proportional Valve (Setpoint): 800 Hz (PWM)
- Proportional Valve, Positioner Analog, Process Controller Analog (Setpoint): 0-10 V
- Proportional Valve, Positioner Analog, Process Controller Analog (Setpoint): 4-20 mA
- Standard On/Off (Setpoint): 10-30 V (Log 1, Valve Open)
- Standard On/Off, Positioner Analog, Process Controller Analog (Setpoint): 0-5 V (Log 0, Valve Closed)
Input Impedance
- Analog Input (Proportional Valve, Positioner Analog, Process Controller): 60 ohms (Current)
- Analog Input (Standard On/Off, Proportional Valve, Positioner Analog, Process Controller): 22 KiloOhms (Voltage)
Interface Connection
- CAN
Media
- Liquids
- Neutral Gas
Mounting Position
- Preferably with Actuator Upright
NPT Connection
- 1/2" NPT Female
- 1/4" NPT Female
- 3/8" NPT Female
O-Ring Material
- FKM
- NBR
Orifice Size
- 0.07" to 0.39" (2 to 10 mm)
Output
- Digital Current Limit (Standard On/Off, Proportional Valve): 100 mA - Maximum
- Positioner Analog, Process Controller Analog: 0-20 / 4-20 mA - (560 ohms, Maximum)
- Positioner Analog, Process Controller Analog: 0-5 / 0-10 V - (10 mA - Maximum)
Power Supply
- 24 Vdc ± 10%, Maximum
Pressure Range
- psi: 0 to 319 (kPa: 0 to 2,200, bar: 0 to 22)
Process Temperature
- Fluid: 0° to 70° C (32° to 158° F)
Ratio
- Span - 1 : 100
Repeatability
- < 1% of Full Scale
Response Time
- Closure Time: 2.5 seconds (0 to 100% Stroke)
Seat / Seal Material
- Elastometer, Spindle: FKM
- Elastometer, Spindle: NBR
- Seal: EPDM
Sensitivity
- < 1% of Full Scale
Spindle Material
- Stainless Steel
Viscosity
- 600 mm²/sec (cSt), Maximum
