DATA SHEET Servo-assisted 2/2-way piston valve • Servo-assisted and compact piston valve with diameter of up to DN 13 • Vibration-resistant , screwed coil system • Energy-saving double coil technology with kick and drop variant • Safe opening with hard-coupled piston system • Explosion proof versions Product variants described in the data sheet may differ from the product presentation and description. Type 2518 Cable plug, form A according to  DIN EN 175301-803 Type 2509 Cable plug, form A according to  DIN EN 175301-803 The 6240 valve is a servo-assisted piston valve. The stopper and plunger guiding tube are welded together to enhance pressure resistance and leak-tightness. Various seal material combinations are available depending on the application. The housing design and surface quality enable maximum flow rates. The coils are moulded with chemically resistant epoxy. An optional sliding ring bearings increases the life cycle with dry gases. To reduce power consumption in operation, coils with Kick and Drop electronics assembly (double coil technology) are available. Standard | EU | en | 2024-05-15 | 32 © Christian Bürkert GmbH & Co. KG, Subject to alteration

General technical data Circuit functions Visit produ

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General technical data Product properties Dimensions Further information can be found in chapter “5. Dimensions” on page 11. Material Body Coil Orifice Circuit function Thermal insulation class of solenoid coil Performance data Duty cycle Switching time Standard version DN 6 Brass, stainless steel 1.4404 / 316L Epoxy DN 6, DN 12, DN 13 (steam version) A and B Further information can be found in chapter “2. Circuit functions” on page 5. Epoxy coil class H Standard version DN 12 Steam version DN 13 High pressure version PN16 and PN25 Electrical data Operating voltage Power consumption Voltage tolerance...

Circuit functions Description Circuit function A (CF A) 2/2-way solenoid valve Servo-controlled Normally closed Circuit function B (CF B) 2/2-way solenoid valve Servo-controlled Normally open 3.1. General notes • The approvals and conformities listed below must be stated when making enquiries. This is the only way to ensure that the product complies with all required specifications. • Not all available verions can be supplied with the below mentioned approvals or conformities. 3.2. Conformity In accordance with the Declaration of Conformity, the product is compliant with the EU Directives. 3.3....

3.4. Explosion protection Approval Description Optional: Explosion protection according to category 2 (zone 1/21) Ex marking of the components according to the following table: Coil Type AC10 Coil with cable outlet ATEX: EPS 18 ATEX 1232 X II 2G Ex mb IIC T4 Gb II 2D Ex mb IIIC T130 ºC Db IECEx: IECEx EPS 18.0110 X Ex mb IIC T4 Gb Ex mb IIIC T130 ºC Db Coil with terminal box ATEX: EPS 18 ATEX 1232 X II 2G Ex eb mb IIC T4 Gb II 2D Ex mb tb IIIC T130 ºC Db IECEx: IECEx EPS 16.0030 X II 2G Ex mb IIC T4 Gb II 2D Ex mb IIIC T130 ºC Db IECEx: IECEx EPS 18.0110 X Ex eb mb IIC T4 Gb Ex mb tb IIIC T130...

3.5. North America (USA/Canada) Approval SOLENOID FOR USE IN HAZARDOUS LOCATIONS E504714 Description Optional: UL Listed for the USA (valid for valves) The valves are UL Listed for the USA according to: • UL 429 (electrically operated valves) Optional: UL Hazardous Locations – Explosion Protection (valid for coils) UL Listed for Hazardous Locations for USA and Canada Class I, Zone 1 Class I, Division 2, Group A, B, C and D Class II + III, Division 2, Group F and G Optional: UL Recognized for the USA (valid for valves) The valves are UL Recognized for the USA according to: • UL 429 (electrically...

4.1. Bürkert resistApp Bürkert resistApp – Chemical resistance chart You want to ensure the reliability and durability of the materials in your individual application case? Verify your combination of media and materials on our website or in our resistApp. Start chemical resistance check 4.2. Material specifications Standard version 1 2 Stopper Armature guide tube Core Guide ring Springs Coil Safety lock Body Seal facing outwards Piston complete Shading ring Material Steel (surface finish thick film passivated) (Brass version) Stainless steel 1.4305 PTFE (Stainless steel version) Stainless steel...

High pressure version up to 250 bar (PN25) or 160 bar (PN16) – DN 6 Element Nut Coil Stopper Spring Core coupling Glide ring Guide tube Core seal Piston coupling Piston guide Seal Seat seal Body Material Stainless steel 1.4305/303 1.) Epoxy Stainless steel 1.4523/316 1.) Stainless steel 1.4310/301 1.) Stainless steel 1.4113/434 1.), 1.4305/303 1.) PTFE coal-filled Stainless steel 1.4571/316 Ti 1.) Ceramic ball Stainless steel 1.4305/303 1.), PEEK, PTFE coal-filled Stainless steel 1.4305/303 1.) FKM, EPDM PCTFE Stainless steel 1.4404/316L 1.) (CF3M) 1.) Material designation according to AISI High...

Element Nut Coil Stopper Shading ring Spring Core Guide tube Glide ring Cover Seal Support ring Coupling ring Holding cap Seat gasket Outer seal Body Piston coupling Core seal Material Stainless steel 1.4305/303 1.) Epoxy Stainless steel 1.4113/434 1.) Silver Stainless steel 1.4310/301 1.) Stainless steel 1.4113/434 1.) Stainless steel 1.4303/305 1.)/308 1.) PTFE coal filled PA6 FKM PPS Fortron PEEK Stainless steel 1.4301/304 1.) FKM FKM Brass, stainless steel 1.4408/316 1.) Stainless steel 1.4401/316 1.), PPS Fortron, PTFE, PEEK, FKM FKM 1.) Material designation according to AISI Visit product...

5.1. Standard version Note: Dimensions in mm Version DN6 Visit product website

5.2. High pressure version up to 250 bar (PN25) or 160 bar (PN16) – DN 6 Note: Dimensions in mm Version PN25 Version PN16 A (body connection) G¼ NPT ¼ G⅜ NPT ⅜ Version PN25 A (body connection) G¼ NPT ¼ G⅜ NPT ⅜ Visit product website

5.3. High pressure version up to 250 bar (PN25) – DN 12 Note: Dimensions in mm Visit product website