Pneumatic control for decentralised automation of ELEMENT process valves
Type 8690 / Article No. 265936
Product description
The pneumatic control unit Type 8690 is designed for decentralised automation of ELEMENT Type 21xx pneumatic process valves. Mechanical or inductive limit switches register the valve position. The integrated pilot valve controls single or double-acting actuators. The design of the control unit and the actuator enables an internal control air routing without external tubings. Besides the electrical position feedback, the status of the device is shown directly on the pneumatic control unit itself. The housing is easy to clean and features proven IP protection and chemically resistant materials for use in hygienic processing, in food, beverage and pharmaceutical industries. Focused on wash down applications, the IP protection of the housing is supported by a positive pressure inside the control head. Combined with Bürkert ELEMENT actuators, the pneumatic actuating system enables spring chamber aeration that avoids actuator chamber contamination from the environment.
- Commodity Codes
- 90268020
- Country
- DE
Technical attributes
Name |
Value |
Unit |
---|---|---|
Type | 8690 | |
Product sub-group | Pneumatic Control Unit / Position indicator | |
Function | Pneumatic control unit | |
Valve function manual actuation | Yes | |
Pneumatic pilot valve 1 | 6144 | |
Pneumatic function 1 double acting | No | |
Pneumatic function 1 single acting | Yes | |
Valve diameter | 3 | mm |
QNn value (gas) | 250 | l/min |
Temperature environment min | -10 | °C |
Temperature environment max | 55 | °C |
End position feedback internal | 0 | PCE |
End position feedback external | 0 | PCE |
End position feedback DC voltage | No | |
End position feedback AC voltage | No | |
For Actuator size 40 mm | No | |
For Actuator size 50mm | Yes | |
For Actuator size 63mm | Yes | |
For Actuator size 70mm | No | |
For Actuator size 80mm | Yes | |
For Actuator size 90mm | No | |
For Actuator size 100mm | Yes | |
For Actuator size 125mm | Yes | |
For Actuator size 130mm | No | |
For Actuator size 175mm | No | |
For Actuator size 225mm | No | |
Port connection 1 type | Inner thread | |
Port connection 1 thread type | G | |
Port connection 1 thread marking | 1/8 | |
Electrical connection sort | Screw terminal with cable feed-through | |
Voltage / rated voltage | 24 | V |
Voltage / rated voltage | 24 | V |
Supply system-internal | No | |
Supply via BUS | No | |
Supply via separating barrier | No | |
AC voltage | No | |
DC voltage | Yes | |
Mounting type | CLASSIC drive | |
Protection type (IP max. with suitable connector) | IP65/67 | |
Weight | 0,3 | kg |
Approval type | UL | |
Certification type | cULus Listed |
Can be combined with
Applications & Tools
Downloads
Data Sheets
User Manuals
EU Declaration of Conformity
Interactive Animation
Flyers and Catalogues
Description |
Filesize |
Language / Country |
|
---|---|---|---|
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Product Overview Process and Control Valves | 31 MB | EN / EU |
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On/Off and Control Valves | 1 MB | EN / EU |