Features of Burkert 8694
- Precise control of valve position: Precise control is achieved by measuring the valve position and comparing it with the set value.
- Remote set point adjustment: Remote adjustment can be performed via a 4-20mA signal or AS interface.
- High reliability: Rugged design for harsh working conditions.
- Easy installation and maintenance: Compact design and modular structure for easy installation and maintenance.
- DIP switch configuration: setting of basic parameters using DIP switches ( sealing threshold, characteristic selection, inversion of direction, manual/automatic operating state switchover and digital input)
- Casing material: PPS, stainless steel
- Pressure: 0-7 bar (low air flow), 3-7 bar (high airflow)
- Neutral gases, air according to DIN ISO 8573-1
- Analog feedback signal on request
Specifications of Burkert 8694
| Material | Body: PPS, stainless steel Seal: EPDM Cover: PC |
| Operation | Operating keys: 2 DIP switch: Integrated Service interface: Connection with PC via USB-büS interface set Configuration tool: Burkert Communicator |
| Commissioning | Initialisation positioner: Automatic by X.TUNE function (automatic adjustment of positioner) Manual override of pilot valve: Yes |
| Status display | Display of device and valve status: Multicoloured LEDs |
| Communication | Fieldbus: AS-Interface Digital: IO-Link, Bürkert system bus (büS) (based on CANopen) |
| Position sensor | Measuring principle: Inductive Position detection module: Contactless analogue position sensor (wear-free) |
| Valve spindle | 3…45 mm |
| Operating voltage | 24 V DC ± 25 % UL: NEC Class 2 |
| Residual ripple | Max. 10 % |
| Power consumption | ≤ 3.5 W |
| Protection class | III according to DIN EN 61140 |
| Multipole version | Multipole version M12, 8-pin resp. 4- or 5-pin according to device version |
| Cable gland version | M16 x 1.5 (cable Ø 5…10 mm) with terminals for cable cross-sections 0.14…1.5 mm² |
| Control medium | Control medium Neutral gases, air, quality class according to ISO 8573 - 1 |
| Dust content | Class 7 (< 40 µm particle size) |
| Particle density | Class 5 (< 10 mg/m3) |
| Pressure dew point | Class 3 (<- 20 °C) |
| Oil content | Class X (< 25 mg/m3) |
| Mesh | size ~0.1 mm |
| Low air capacity | 0…7 bar 1.) |
| High air capacity | 3…7 bar |
| Pilot air port | Threaded connection G ⅛, stainless steel |
| Low air capacity | Single-acting: 7 l N/min for aeration and ventilation (QNn value according to definition at pressure drop from 7 to 6 bar abs) Actuator series/size: Type 23xx, actuator Ø 70/90 mm |
| High air capacity | Single-acting: 130 l N/min for aeration and ventilation (QNnvalue according to definition at pressure drop from 7 to 6 bar abs) Actuator series/size: Type 23xx, actuator Ø 130/225 mm Type 27xx, actuator Ø 175/225 mm |
Application of Burkert 8694
Burkert 8694 8694 is widely used in various industrial process control fields, such as chemical, pharmaceutical, food and beverage, water treatment, energy, etc.
Dimension of Burkert 8694
