Up to 99.8% Efficiency
Burkert 20052166 Type 3360 is an innovative electromotive 2-way angle seat control valve designed for demanding operating conditions. The electromotive actuator, equipped with a ball screw, positions the control cone with the highest precision. A unique feature of this valve is its high positioning speed of up to 6 mm/s, allowing it to react almost delay-free to process signals. Pressure variations or shocks in the medium are not transferred to the valve position, ensuring stable and accurate control.
The actuator and valve are perfectly adapted to each other with a closed design and robust surface, meeting hygienic requirements for fast and residue-free cleaning. Harsh environments are easily handled thanks to the IP65/IP67 and NEMA 4X degree of protection, along with high impact and vibration resistance. The fieldbus-compatible Type 3360 provides helpful functions for process monitoring, valve diagnostics, and predictive maintenance. If necessary, a safety position can be approached using the optional SAFEPOS energy-pack in the event of a power failure.
General Technical Data
| Product Properties | Description |
|---|---|
| Design | Angle seat control valve |
| Nominal diameter | DN 15...DN 65, NPS 1/2...2 1/2 |
| Safety setting (power failure) | With SAFEPOS energy-pack: open, closed or freely programmable. Without: blocked in last position |
| Flow direction | Against closing direction (below seat) |
| Controller variant | Positioner or process controller (option) |
| Operating pressure | 0...25 bar(g) (Vacuum variant down to -0.9 bar(g) optional) |
| Nominal pressure | PN 25 (DIN EN 1333), Class 150 (DIN EN 1759) |
| Kvs value | 5.0...90 m³/h |
| Flow characteristic | Modified equal percentage |
| Seat leakage | Class III, IV and VI (DIN EN 60534-4) |
| Travel speed | 6 mm/s (AG2 1300 N), 4 mm/s (AG2 2500 N), 3 mm/s (AG3 7700/10000 N) |
| Operating voltage | 24 V DC ± 10 % (maximum residual ripple 10 %) |
| Medium temperature | -40 °C...+230 °C |
| Ambient temperature | -25...+65 °C (only without additional modules) |
| Degree of protection | IP65/IP67 (DIN EN 60529), NEMA 4X |
Approvals and Conformities
Depending on the specific configuration, the Type 3360 is available with the following approvals and conformities:
- North America: UL Listed for USA and Canada (UL 61010-1, CAN/CSA-C22.2 No. 61010-1).
- Explosion Protection: ATEX / IECEx Category 3 device suitable for zone 2/22 (Ex ec IIC T4 Gc / Ex tc IIIC T135 °C Dc).
- Drinking Water: Suitable for use in drinking water applications up to +85 °C (TrinkwasserV).
- Foods and Beverages/Hygiene: FDA Code of Federal Regulations, USP (biocompatible), EC Regulation 1935/2004, and China food GB Standards.
- Others: Suitability for gaseous oxygen and TA Luft compliance.
Materials
Actuator Materials (AG2)
| No. | Component | Material |
|---|---|---|
| 1 | Display housing/blind cover | PPS (standard), stainless steel 1.4301 (for ATEX/IECEx) |
| 2 | Actuator cover | PPS |
| 3 | Seal | EPDM |
| 4 | Actuator housing | Powder-coated aluminium |
| 6 | Seal | EPDM |
| 7 | Actuator base | PPS |
Valve Body Materials
| No. | Component | Material |
|---|---|---|
| 1 | Spindle | Stainless steel 1.4401 (316)/1.4404 (316L) |
| 2 | Spindle seal | PTFE V-seals (filled) with spring compensation |
| 3 | Spindle guide | Stainless steel 1.4404 (316L) |
| 4 | Packing gland tube | Stainless steel 1.4401 (316) |
| 5 | Seal valve body | Graphite or PTFE |
| 6 | Control cone | Stainless steel 1.4571 |
| 7 | Seat seal | Stainless steel 1.4571/PTFE or PEEK seal washer |
| 8 | Valve body | Stainless steel CF3M |
Product Design and Assembly
The electromotive linear drive consists of a brushless DC motor, a gear, and a spindle system that transfers the force to the closing element. The integrated control electronics are controlled either by standard signals or via a fieldbus (digital).
Design of Electromotive Valve Type 3360 AG2
Design of Electromotive Valve Type 3360 AG3
Integrated Position Controller
The position of the actuator (stroke) is controlled according to the position set-point value. The position set-point value is either given by an external standard signal (analogue) or via a fieldbus (digital). The displacement transducer records the actual position (POS) of the electric linear actuator. The positioner compares the actual position value with the position set-point value (CMD). If there is a system deviation, the electric motor drive is controlled via the actuating variable CTRL and the actual position value is changed accordingly.
Maintenance and Service
DANGER
Risk of injury from high pressure. Before working on the system or device, switch off the pressure and vent or drain lines.
WARNING
Risk of crushing due to mechanically moving parts. Perform installation and maintenance work only in the isolated state. For devices with SAFEPOS energy-pack: Completely drain the energy-pack and wait until the LED illuminated ring goes out.
Replacing the Control Cone
Important information for the problem-free and safe functioning of the device: The sealing surface and cone contour of the control cone must not be damaged.
- Knock out the dowel pin using a suitable pin punch.
- Remove the old control cone.
- Attach the new control cone to the spindle and align the bores.
- Support the control cone on the cylindrical part with the help of a prism.
- Put on the dowel pin and carefully knock it in with a hammer, positioning it in the center of the spindle axis.
Adjusting the Position Control (X.TUNE)
After mounting the actuator or replacing internal components, the X.TUNE function must be run to adjust the position control to the physical stroke of the actuating element.
WARNING
Danger due to uncontrolled process after running the X.TUNE function. If the X.TUNE is run under medium pressure, the controller will be incorrectly adjusted, resulting in an uncontrolled process. Never run the X.TUNE under medium pressure.
