The direct-acting Type 3280 motor valve is suitable for dosing liquids and gases in closed or open control loops. The valve is driven by a linear stepper motor. The integrated electronics assembly simplifies the process integration; additional actuation modules are not necessary. The engine does not need any energy to maintain a certain valve opening. This feature can reduce the energy consumption of a plant dramatically and therefore make it more efficient. Type 3280 is available as an on/off valve or proportional valve by default, as a variant with integrated positioner, and as a variant with integrated process controller.
Features
Type 3280 - Electromotive 2-Way Globe Proportional Valve Features:
- Actuator is not wetted
- Excellent setting range and fast reaction time
- Low electrical power consumption
- Connection orifice DN 8...15
- Variants: standard, positioner, process controller and high-pressure variants for up to 22 bar
Specifications
Type 3280 - Electromotive 2-Way Globe Proportional Valve Specifications:
| Product Properties | |
| Material | |
| Seal |
|
| Valve body | Brass or stainless steel |
| Nominal diameter | DN 8…DN 15, NPS ¼, ⅜, ½ |
| Flow direction | Against closing direction (below seat) |
| Design |
|
| Weight | ~0.7 kg |
| Controller variant | Standard On/Off, standard control valve, position controller or process controller |
| Safety setting in case of power failure | With capacitive buffer module as accessory |
| Status display | LED |
| Performance data | |
| Typical values of positioning behaviour | |
| Nominal pressure | PN 25 (housing) |
| Pilot pressure | Max. 10 bar |
| Medium data | |
| Dead band of the position control | ± 0.5 % (corresponds to setting range 1:100) |
| Closing time | 2.5 s |
| Operating pressure | 0…6 bar(g) (High pressure variant up to 22 bar(g) (depending on seat size Vacuum variant up to - 0.9 bar(g) (optional) |
| Duty cycle | Up to 100 % (depending on medium and ambient temperature) |
| KVS value | 0.03…1.9 m³/h |
| Electrical data | |
| Operating voltage | 24 V/DC ± 10 % (max. residual ripple 10 %) |
| Power consumption | < 1 W in holding position Max. 8 W (DN 2…DN 6) resp. max. 12 W (DN 8 and DN 10, as well as high-pressure variants) |
| Medium data | |
| Operating medium | Neutral gases, liquids |
| Medium temperature |
|
| Viscocity | Max. 600 mm²/s (cSt) |
| Process/Port connection and communication | |
| Port connection |
|
| Communication and control | |
| Standard signal (analogue) | Setpoint: binary, 0/4…20 mA, 0…5/10 V and digital input |
| Fieldbus (digital) |
|
| EDIP | Field device for integration into the EDIP platform via Bürkert system bus (büS) |
Applications
Type 3280 - Electromotive 2-Way Globe Proportional Valve Applications:
- HVAC systems – precise temperature control in heating/cooling loops
- Water treatment – pH adjustment and chemical dosing
- Analytical instrumentation – fine flow control of media
- Fuel cell technology – gas or liquid flow regulation
- Food & pharma – dosing and flow control in clean media environments
Q & A
Type 3280 - Electromotive 2-Way Globe Proportional Valve Q & A:
+ What is the Bürkert Type 3280 valve?
It’s a direct‑acting 2‑way motor (stepper) valve designed for precise dosing of liquids and gases in open or closed control loops.
+ What control modes are available?
Comes in ON/OFF, proportional control, or variants with integrated positioner or process controller.
+ How is the valve actuated?
Uses a linear stepper motor; no continuous power is needed to maintain a set opening—only for motion—saving energy.
+ What media and temperatures can it handle?
Suitable for neutral liquids and gases, temperature range 0 °C to 70 °C, and viscosity up to 600 cSt.
+What communication or ports are available?
Standard port connections: G or NPT ¼”, 3/8”, ½”, as well as sub-base or cartridge on request.
Downloads
Download Bürkert Type 3280 Electromotive 2 Way Globe Proportional Valve Datasheet
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