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Burkert-Type 8685 - Control- and feedback head for integrated mounting on Robolux valves Type 2036
Burkert-Type 8685 - Control- and feedback head for integrated mounting on Robolux valves Type 2036

Burkert – Type 8685 – Control and Feedback Head for Integrated Mounting on Robolux Valves Type 2036

จุดเด่นของ Type 8685

  • Version for ATEX / IECEx
  • Fieldbus AS-Interface (optional)
  • Compact stainless steel design
  • Coloured illuminated status display
  • Contactless valve position registration
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Control- and feedback head for integrated mounting on Robolux valves Type 2036

Feedback Type 8685 and control head Type 8686 are optimized for integrated mounting on pneumatically operated actuators Type 2036 Robolux. The adjustment to the individual actuator size is done through DIP-switches.

As compact units the devices contain the complete automation functionality of both individually operated actuator pistons. Depending on the configuration the electrical and visual position feedback is done by non-contact switches and high-power LEDs. Integrated pilot valves control the actuator pistons and AS-interface communication is available. Using appropriate barriers both types feature intrinsically safety acc. to ATEX. In this way a complete concept for decentralized automation is feasible.

The compact body is especially distinguished by its hygienic design, materials being chemically resistant against cleaning media and a proven IP protection. In addition the Control Head Type 8686 features an integrated compressed air filter to protect the pilot valve function against particles through the compressed air supply.

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type 8685

BURKERT TYPE 8685 สามารถใช้ได้ร่วมกับ

General Technical Data

Product properties
Dimensions Detailed information can be found in chapter “3. Dimensions” on page 7.
Body PPS, stainless steel
Seals EPDM
Cover PC
Fieldbus AS-Interface

Performance data
Valve spindle RV50 = 6.0 mm, RV70 = 9.5 mm, RV110 = 13.5 mm
Position feedback Reed sensors (contactless)

Electrical data
Pilot valve 24 V DC ± 10 %
Max. input voltage1.)
For Exi variant: see “1.5. Exi version Type 8685/8686” on page 5
Residual ripple 10 %
power consumption 0,8 W every valve
Limit switches 24 V DC ± 10 %
8.2 V DC (Ex-i-NAMUR switch amplifier)
U < 12 V, Ii < 20 mA, Pi < 60 mW (Ex barrier)
Protection class 3 acc. to VDE 0580
Multipole version M12 (8 pin), M12 (4 pin) with 1 m cable (AS-Interface)
Cable gland version M16 × 1.5 (cable Ø 6.5 mm), screw terminals (1.0 mm2)

Pneumatic data
Control medium Neutral gases, air, quality class acc. 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)
Air supply filter Exchangeable
Mesh size ~0.1 mm
Supply pressure 3…7 bar1.)
Pilot air ports Threaded connection G ⅛

Approvals and certificates
Conformity Acc. to CE acc. to EMV2004/108/EG

Environment and installation
Ambient temperature (max.) 0…+ 55 °C
Degree of protection IP65/67 acc. to EN 60529

Installation and mechanical data
Installation position As required, preferably with actuator in upright position
Adapter kits Detailed information can be found in chapter “Adapter kits” on page 15.

*For selecting thecorrect product please refer to the technical data, images and notes for proper use according to the data sheet, or contact Flu-Tech directly.

สอบถามข้อมูลเพิ่มเติม ติดต่อเรา :

  02-384-6060 (อัตโนมัติ)    [email protected]    บริษัท ฟลูเทค จำกัด Flu-tech    @flutech.co.th