8690 BURKERT | Alldatasheet
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Visit product website DATA SHEET Type 2100 Pneumatically operated 2/2-way angle seat valve ELEMENT for decentral- ized automation Type 2101 Pneumatically operated 2/2-way globe valve ELEMENT for decentral- ised automation Type 2103 2/2-way diaphragm valve with pneumatic stainless steel actuator (Type ELE- MENT) for decentralised automation Type 2104 T-diaphragm valve with pneumatic actuator in stainless steel (Type ELE- MENT) for decentralised automation Type 2105 Tank bottom diaphragm valve with pneumatic actuator in stainless steel (Type ELEMENT) for decentralised automation Type 2106 Pneumatically operated 3/2-way seat valve ELEMENT for decentral- ized automation Standard | EU | en | 2024 - 03 - 06 | 20 Pneumatic control unit for decentralised automation of process valves ELEMENT
- Compact design Integrated pilot valve with manual override Integrated control air routing in the actuator Visual position indicator With ATEX II cat. 3G/D and cat. 2G/D approval 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. Product variants described in the data sheet may differ from the product presentation and description. Type description Can be combined with Type 8690 © Christian Bürkert GmbH & Co. KG, Subject to alteration
2 | 13Visit product website Table of contents 1. General technical data 3 Approvals and conformities 2.2. Conformity 2.3. Standards 2.4. Explosion protection 2.5. North America (USA/Canada) 2.6. Others China Compulsory Certification (CCC) 3. Materials 6 4. Dimensions 7 5. Device/Process connections 8 Cable gland 6. Product installation 10 7. Ordering information 11 7.2. Bürkert product filter 7.3. Ordering chart Pneumatic control unit for decentralised automation of ELEMENT On/Off process valves Type 21xx 7.4. Ordering chart accessories Standard accessories ELEMENT Adapter kits ELEMENT
3 | 13Visit product website 1. General technical data Product properties Dimensions Further information can be found in chapter “4. Dimensions” on page 7 Material Body PPS Seal EPDM Cover PC Commissioning Setting valve end position Manual Manual override of pilot valve Yes Status display Display of device and valve status Optical Optical position indicator (mechanical) Yes Performance data Position sensor Stroke range for linear actuator Valve spindle, initiator 2…28 mm Valve spindle, micro switch 7…28 mm Position feedback Micro switch 1x or 2x micro switch (24 V DC) Initiator 1x or 2x inductive proximity switch 3-wire (24 V DC) 1x or 2x inductive proximity switch NAMUR (8 V DC) (ATEX II 2G Ex ia IIC T6) Electrical data Operating voltage Pilot valve 24 V DC ± %, residual ripple 10 % DC, power consumption 1 W Residual ripple 10 Power consumption < W Micro switch Max. 24 V DC, max. 2 A Initiator 10…24 V DC, max. 100 mA external load per initiator Protection class III according to DIN EN 61140 Electrical connection Multipole version M12, 8-pin Cable gland version M16 x 1.5 (cable Ø 5…10 mm) with screw terminals for cable cross sections 0.14…1.5 mm² Pneumatic data Control medium Neutral gases, air, quality class according to ISO 8573 Dust content Class 7 (< µm particle size) Particle density Class 5 (< mg/m3) Pressure dew point Class 3 (<- °C or min. 10 °C below the lowest operating temperature) Oil content Class X (< mg/m3) Air supply filter Exchangeable Mesh size ~0.1 mm Supply pressure 3…7 bar 1.) 2.) Pilot air port Threaded connection G ⅛ stainless steel or push-in connector (pipe Ø 6 mm / ¼") Actuating system Circuit function Single and double-acting Air capacity 250 IN/min (for aeration and ventilation) (QNn value according to definition at pressure drop from 7 to 6 bar abs) Actuator series/size Type 21xx, actuator Ø 70/90/130/225 mm
4 | 13Visit product website Approvals and conformities Explosion protection Ignition protection class II 3G Ex ec IIC T4 Gc II 3D Ex tc IIIC T135 °C Dc II 2G Ex ia IIC T* Gb II 2D Ex ia IIIC T135 °C Db ATEX BVS 14 ATEX E 008 X II 3G Ex ec IIC T4 Gc II 3D Ex tc IIIC T135 °C Dc BVS 14 ATEX E052 X II 2G Ex ia IIC T* Gb II 2D Ex ia IIIC T135 °C Db IECEx IECEx BVS 14.0009 X Ex tc IIIC T135 °C Dc Ex ec IIC T4 Gc IECEx BVS 14.0035 X Ex ia IIIC T135 °C Db Ex ia IIC T* Gb Further information can be found in chapter “2.4. Explosion protection” on page 5 North America (USA/Canada UL Listed for the USA and Canada cULus certificate: E238179 Further information can be found in chapter “2.5. North America (USA/Canada)” on page 5 FM Explosion Protection Increased Safety for Class I, Zone 2, AEx ec IIC T4 Gc hazardous (classified) locations, indoors and outdoors (IP54). Alternatively marked as Class I Division 2 Groups A, B, C, and D; T4. Further information can be found in chapter “2.5. North America (USA/Canada)” on page 5 Others China Compulsory Certification (CCC) The products with Ex approval are suitable for import and use for hazardous applications in China. Further information can be found in chapter “2.6. Others” on page 6 Further information can be found in chapter “2. Approvals and conformities” on page 5 Environment and installation Operating conditions Ambient temperature With pilot valve - 10…+ 55 ºC Without pilot valve - 20…+ Degree of protection IP65/IP67 according to EN 60529, 4X according to NEMA 250 Standard Operating altitude Up to 2000 m above sea level Installation and mechanical data Installation position As required, preferably with actuator in upright position Valve actuator (type, size) ELEMENT Type 21xx (actuator size Ø 70/90/130/225 mm) Adapter kit Further information can be found in chapter “Adapter kits ELEMENT” on page 13 1.) The supply pressure must be 0.5…1 bar above the minimum required pilot pressure of the valve actuator. 2.) Pressure data: overpressure to atmospheric pressure
5 | 13Visit product website 2. Approvals and conformities 2.1. General notes
- The approvals and conformities listed below must be stated when making enquiries. This is the only way to ensure that the pro duct complies with all required specifications. Not all available versions can be supplied with the below mentioned approvals or conformities. 2.2. Conformity In accordance with the Declaration of Conformity, the product is compliant with the EU Directives. 2.3. Standards The applied standards which are used to demonstrate compliance with the EU Directives are listed in the EU-Type Examination Certificate and/or the EU Declaration of Conformity. 2.4. Explosion protection Approval Description Optional: Explosion protection ATEX: BVS 14 ATEX E 008 X II 3G Ex ec IIC T4 Gc II 3D Ex tc IIIC T135 °C Dc BVS 14 ATEX E052 X II 2G Ex ia IIC T* Gb II 2D Ex ia IIIC T135 °C Db IECEx: IECEx BVS 14.0009 X Ex tc IIIC T135 °C Dc Ex ec IIC T4 Gc IECEx BVS 14.0035 X Ex ia IIIC T135 °C Db Ex ia IIC T* Gb 2.5. North America (USA/Canada) Approval Description Optional: UL Listed for the USA and Canada The products are UL Listed for the USA and Canada according to: UL 61010 1 (ELECTRICAL EQUIPMENT FOR MEASUREMENT, CONTROL, AND LABORATORY USE – Part 1: General Requirements) CAN/CSA-C22.2 No. 61010 Approval Description Optional: FM (Factory Mutual) – Explosion Protection Increased Safety for Class I, Zone 2, AEx ec IIC T4 Gc hazardous (classified) locations, indoors and outdoors (IP54). Alternatively marked as Class I Division 2 Groups A, B, C, and D; T4.
6 | 13Visit product website 2.6. Others China Compulsory Certification (CCC) Approval Description Optional: China Compulsory Certification (CCC) The products with Ex approval are suitable for import and use for hazardous applications in China. 3. Materials 3.1. Material specifications No. Element Material
1 Cover PC
2 Seals EPDM
3 Screws Stainless steel
4 Push-in connector
5 Basic housing PPS
6 Cable gland
7 | 13Visit product website 4. Dimensions 4.1. Mounting on ELEMENT process valve Type 21xx Note: Dimensions in mm 114.1 13.5 31.7 14.6 54.1 86.2 17.1 43.5
8 | 13Visit product website 5. Device/Process connections 5.1. Electrical connections Multipole connection Circular plug M12, 8-pin 73 8 Plug configuration 24 V with micro switch Pin Assignment Outer circuitry Micro switch top (NO) Micro switch top (NO)
2 Micro switch top (NO)
Micro switch bottom (NO) Micro switch bottom (NO)
4 Micro switch bottom (NO)
5 Valve control 0/24
V 0/24 V DC ± 10 % Residual ripple 10 %6 Valve control GND
7 Not assigned –
8 Not assigned –
Terminal assignment with inductive proximity switch 3-wire Pin Assignment
1 INI 1 OUT Output
2 INI 2 OUT Output
3 INI - (GND) Supply
4 INI + (24
V DC) Supply V DC
6 Valve control GND
M16 × 1.5 (cable Ø 10 mm), screw terminals (1.5 mm2) Terminal no. Terminal assignment 24 V with micro switch Terminal Assignment Outer circuitry Micro switch top (NO) Micro switch top (NO) Micro switch bottom (NO) Micro switch bottom (NO) V 0/24 V DC ± 10 % Residual ripple 10 %6 Valve control GND Terminal assignment with inductive proximity switch 3-wire Terminal Assignment
1 INI - (GND) Supply
2 INI 1 OUT Output
3 INI 2 OUT Output
V DC) Supply V DC
9 | 13Visit product website Cable gland: M16 × 1.5 (cable Ø 10 mm), screw terminals (1.5 mm2) Terminal No. Port configuration with Inductive proximity switch NAMUR Pin Assignment Outer circuitry
1 INI Top +
+8.2 V DC 0 V R See footnote 1.)
2 INI Top –
3 INI Bottom +
4 INI Bottom –
5 Valve control +
See footnote 2.) 1.) According to NAMUR recommendation. Observe the Turck KEMA 02 ATEX 1090X-type examination certificate. 2.) Barrier signal see PTB 07 ATEX 2048
10 | 13Visit product website 6. Product installation 6.1. Combination options with pneumatic ELEMENT process valves Note: A decentralised, automated valve system consists of pneumatic control unit Type 8690 and an ELEMENT process valve Type 21xx. The following information is required to select a complete system: Article no. of the desired control head Type 8690, see “Pneumatic control unit for decentralised automation of ELEMENT On/Off process valves Type 21xx” on page 12 Article no. of the desired process valve Type 21xx, see data sheet Type 2100 , Type 2101 and Type 2103 You order two components and receive a completely assembled and tested valve. Example for decentralised automation of On/Off ELEMENT valve systems Pneumatic control unit Pneumatic process valve Type 8690 Type 2100 Angle seat valve Type 2101 Globe valve Type 2103 Diaphragm valve On/Off ELEMENT valve system Type 8801-YE-K ELEMENT valve system 2100 8690 Type 8801-GC-K ELEMENT valve system 2101 8690 Type 8801-DF-K ELEMENT valve system 2103 8690
11 | 13Visit product website 7. Ordering information 7.1. Bürkert eShop Bürkert eShop – Easy ordering and quick delivery You want to find your desired Bürkert product or spare part quickly and order directly? Our online shop is available for you 24/7. Sign up and enjoy all the benefits. Order online now 7.2. Bürkert product filter Bürkert product filter – Get quickly to the right product You want to select products comfortably based on your technical requirements? Use the Bürkert product filter and find suitable articles for your application quickly and easily. Try out our product filter
12 | 13Visit product website 7.3. Ordering chart Pneumatic control unit for decentralised automation of ELEMENT On/Off process valves Type 21xx Note: All non-ATEX versions are UL-approved. End position feedback Electrical connection Circuit function pilot valve system Pilot air ports Article no. Inductive switch 2.)
24 V DC
8 V DC
Standard ATEX II Cat. 3G/D, IECEx, CCC 1.) ATEX II Cat. 2G/D 2 – – M12 plug connector Single- acting G ⅛ 227222 264968 – 2 – – Double- acting G ⅛ 264939 264957 – 2 – – Without G ⅛ 227190 264949 – 2 – – Cable gland Single- acting G ⅛ 227220 264967 – 2 – – Double- acting G ⅛ 264941 264956 – 2 – – Without G ⅛ 227189 264948 – 1 – – M12 plug connector Single- acting G ⅛ 227218 264964 – 1 – – Double- acting G ⅛ 264940 264953 – 1 – – Without G ⅛ 265151 264945 – 1 – – Cable gland Single- acting G ⅛ 227216 264963 – 1 – – Double- acting G ⅛ 264942 264952 – 1 – – Without G ⅛ 265154 264944 – – 2 – Single- acting G ⅛ – – 265143 – 2 – Double- acting G ⅛ – – 265144 – 2 – Without G ⅛ – – 265142 – – 2 M12 plug connector Single- acting G ⅛ 227234 – – – – 1 Single- acting G ⅛ 227230 – – – – 2 Cable gland Single- acting G ⅛ 227232 – – – – 2 Without G ⅛ 227195 – – Without end position feedback Cable gland Single- acting G ⅛ 225883 264961 – Double- acting G ⅛ 265156 265935 – 1.) CCC (China Compulsory Certificate) for device versions with Ex approval 2.) Inductive proximity switch 3-wire Further versions on request Additional Push-in pilot air ports (tube Ø 6 mm and ¼")
13 | 13Visit product website 7.4. Ordering chart accessories Standard accessories ELEMENT Note: Must be ordered separately. Description Article no. M12 circular socket with cable, 8-pin, cable length: 5 m, for input and output signals 919267 Silencer G ⅛ 780779 Silencer 6 mm, PE 902662 Adapter kits ELEMENT Note: Must be ordered separately. Adapter kits for third-party actuators can be found in the data sheet Adaptation for third-party actuators Type KK01 or contact the appropriate Bürkert sales office. Description Actuator size Control function Article no. Adapter kit ELEMENT Types 21xx Ø 70/90/130 mm Universal 665720 Adapter kit ELEMENT Types 21xx Ø 225 mm Universal 60025905