PN25
The BURKERT 20023184 Type 3320 electromotive 2/2-way angle seat valve is an innovative solution for shut-off tasks under demanding operating conditions. The electromotive actuator with a ball screw moves the swivel plate at a particularly high speed up to 6 mm/s to the desired end position, reacting almost instantaneously to process signals. If necessary, the safety position can be approached by an optional energy storage (SAFEPOS energy-pack) in case of power failure.
The electromotive actuator and shut-off valve are adapted perfectly to each other with a closed design and robust surface, ensuring the hygienic requirements of fast and residue-free cleaning. Harsh ambient conditions are no problem due to the degree of protection IP65/IP67 and high impact and vibration resistance. Thanks to the tried-and-tested, self-adjusting packing gland with exchangeable V-seals, the angle seat valve achieves maximum service life and tightness. The fieldbus-compatible Type 3320 offers many helpful functions for process monitoring, valve diagnostics, and preventive maintenance.
General Technical Data
| Product Properties | Details |
|---|---|
| Design | Angle seat on/off valve |
| Nominal diameter | DN 15...DN 80, NPS 1/2...3 |
| 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) |
| 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) |
| Seat leakage | Leakage rate A (DIN EN 12266-1), seat seal PTFE and PEEK, test medium air |
| Operating voltage | 24 V DC ± 10 % (maximum residual ripple 10 %) |
| Protection class | III (DIN EN 61140) |
| Duty cycle | 100 % |
| Fieldbus (digital) | büS (standard), CANopen, EtherNet/IP, PROFINET, Modbus TCP, EtherCAT (optional) |
| Operating medium | Steam, neutral gases, water, alcohols, oils, fuels, hydraulic fluids, salt solutions, lyes, organic solvents, oxygen (optional) |
| Medium temperature | -40...+230 °C (depending on variant) |
| Degree of protection | IP65/IP67 (DIN EN 60529), NEMA 4X |
Actuator Sizes
- AG2: actuator size 2 with a nominal force of 1300 or 2500 N for seat size 15…50
- AG3: actuator size 3 with a nominal force of 7700 or 10000 N for seat size 40…80
Approvals and Conformities
- Explosion Protection: Optional ATEX/IECEx Category 3 device suitable for zone 2/22 (Ex ec IIC T4 Gc / Ex tc IIIC T135 °C Dc).
- North America: Optional Actuators UL Listed for the USA and Canada (UL 61010-1).
- Drinking Water: Optional suitability for drinking water applications up to +85 °C (TrinkwasserV).
- Foods and Beverages/Hygiene: FDA Code of Federal Regulations, USP (biocompatible), EC Regulation 1935/2004, China food GB Standards.
- Others: Suitability for oxygen (optional), TA Luft.
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 | PEEK or stainless steel 1.4404 (316L) |
| 4 | Packing gland tube | Stainless steel 1.4401 (316) |
| 5 | Seal valve body | Graphite or PTFE |
| 6 | Swivel plate | Stainless steel 1.4401 (316) / 1.4404 (316L) |
| 7 | Valve seat seal | PTFE or PEEK sealing washer |
| 8 | Valve body | Stainless steel CF3M |
Dimensions
AG2 Actuator Dimensions (mm)
| DN | NPS | H1/B1 (Standard variant) | H2/B2 (Fieldbus variant) |
|---|---|---|---|
| 15 | 1/2 | 311 | 362 |
| 20 | 3/4 | 319 | 369 |
| 25 | 1 | 321 | 372 |
| 32 | 1 1/4 | 330 | 381 |
| 40 | 1 1/2 | 333 | 384 |
| 50 | 2 | 367 | 418 |
(Dimensions without sealing function: the actuator is raised by approx. 2 mm in the closed position.)
Product Design and Assembly
Product Features
- Mechanical manual override: Located under the blind cover (AG2) or pressure compensation element (AG3), ensuring the actuator can be operated if power fails.
- Electrical manual override: Carried out via two buttons under the blind cover.
- Display 360° LED light ring: Indicates device status, valve end position, and operating state.
- Mechanical position indicator: Shows current valve position even if supply voltage fails.
- Data transmission: Optional SIM card for storing and transferring device-specific values; büS service interface for PC/smartphone configuration.
- Safety position via energy storage: The optional SAFEPOS energy-pack moves the valve to a safe position (open, closed, or intermediate) during a power failure. Lifespan up to 10 years.
Maintenance and Spare Parts
Safety Instructions
Before working on the system or device, switch off the pressure and vent or drain lines. Perform installation and maintenance work only in the isolated state. For devices with SAFEPOS energy-pack, completely drain the energy pack before maintenance.
Available replacement part sets for Type 3320 include:
- Swivel plate set: consisting of graphite seal, swivel plate, and dowel pin.
- Seal set for the packing gland: consisting of individual parts of the packing gland, graphite seal, and lubricant.
- Spindle guide for the packing gland: consisting of spindle guide, graphite seal, and lubricant.
- SAFEPOS energy-pack: Plug-in module to supply the actuator with required energy during power failure.
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