描述德国BURKERT气动操作二位二通角座阀

The fl exible, easily accessible concept of modular accessories has been designed to cover individual application requirements in a cost-effective way. 
The electrical position feedback Type 8697 is optimised for integrated mounting on the CLASSIC 20XX series.
Operating voltage * Micro switch
24 V Version: 0 – 48 V AC/DC, max. 2A 230 V Version: 50 – 250 V AC/DC,   max. 2 A 10 to 30 V DC - max.
高使用寿命
package is the comprehensive addition to the Bürkert process valves with pneumatic,
linear or quarter-turn actuator (Types 2000, 2002, 2012, 2030, 2031, 2031K, 2050, 2652, 2655, 2658, 2672, 2675).
限制冲程或进行手动应急操作的配件。
高流量
• Easy maintenance and commissioning
2 A)  2x initiator (24 V DC), PNP shutter 3-wire with LEDs 2x initiator NAMUR (8.2 V DC) (2-wire) with LEDs 2x initiator (24 V DC),
 and features proven electrical IP protection and chemicallyresistant materials for use in hygienic processing, in food, beverage and pharmaceutical industries.
Type 8697, electrical position feedback
在此类免维护的坚固阀门上，可以加装各种用于显示位置、
• Increase system and operational safety
Type 2XXX can be combined with...
Technical data Type 8697  Electrical position feedback  (Actuator Ø 20 bis 225)
从外部控制的斜座阀由个气动的活塞驱动装置和个二通阀体构成。
The design has been optimized for easy installation (retro-fi tting), commissioning and  operation. 
• Complete modular designed accessory program
• More for less - optimal configuration costs
100 mA per initiator Position feedback 2x micro switch (0 – 48 V AC/DC, max. 2 A)  2x micro switch (50 – 250 V AC/DC, max.
经过验证的、能够进行自动调整的主轴密封件确保了高密封性。
Technical Data Material - Body   Cover   Sealing
Type 4X Protection class 3 acc. to DIN EN 61140 Conformity EMC directive 2014/30/EU Ignition protection

描述德国BURKERT气动操作二位二通角座阀
 II 3D Ex tc IIIC T135 ºC Dc II 3G Ex nA IIC T4 Gc II 2D Ex ia IIIC T135 ºC Db IP64 II 2G Ex ia IIC T4 Gb Approval cULus certifi cate no.
E238179 Electrical connection Multipole Cable gland M12, 8-pole M16x1.5 SW22 (cable  4 -8 mm), terminal screws 0.14 bis 1.5 mm²
利于流动的二位二通阀体由红铜或精密铸造的不锈钢构成，能够实现高流量值。
Type 1060 Position feedback (Actuator Ø 50-225) Change-over contact Adapters for proximity switches Adapter for proximity switches
M12 x 1 (fastening angle) Adapter for proximity switches (Nipple with thread M12x1) Type 1071 External magnet inductive position feedback
(Actuator Ø 50-125) PNP Stroke limitation (Actuator Ø 50-225)
Max. upper stroke limitation, without optical position indicator Max. and Min. stroke limitation, with optical position indicator
不锈钢或红铜外壳，带有套头、夹紧式或焊接式接头
Schließer (2-wire) with LEDs Stroke range valve spindle 2 to 36 mm Ambient temperature -20 to +60 ºC (without ATEX or for II 2G Ex ia IIC T4 Gb)
 0 to +55 ºC  (II 3D Ex tc IIIC T135ºC Dc, II 3G Ex nA IIC T4 Gc) 0 to +55 ºC (II 2D Ex ia IIIC T135°C Db IP64, II 2G Ex ia IIC T4 Gb) Installation as required,
 preferably with actuator in upright position Protection type IP65 and IP67 according to EN 60529,
 Mechanical or inductive limit switches register the position of the valve und gives an electrical  feedback signal to the control system. 
Besides the electrical  position feedback signal the position of the valve is  visually shown  via LEDs. The housing is easy to clean
Manual override (Actuator Ø 50-125) With visual position indication for valve operation when pressure drops NAMUR-Adapter
(Actuator Ø 50-125) Adapter plate with screw connection for pilot valve
根据环境温度的不同，可以购买两种不同材料（PA 和 PPS）的驱动装置。
Mechanical limit switches (0 to 48 V or 50 to 250 V AC/DC) Inductive limit switches (24 V DC, PNP shutter 3-wire with LEDs) Inductive limit switches 
(24 V DC, shutter 2-wire with LEDs) NAMUR Inductive limit switches (8.2 V DC, 2-wire with LEDs)