Burkert 2301 Operating Instructions Manual
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Burkert 2301 Operating Instructions Manual

2/2-way globe control valve
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Type
2301
2/2-way globe control valve
2/2-Wege-Geradsitzregelventil
Vanne de réglage à siège droit 2/2 voies
Operating Instructions
Bedienungsanleitung
Manuel d'utilisation

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Summary of Contents for Burkert 2301

  • Page 1 Type 2301 2/2-way globe control valve 2/2-Wege-Geradsitzregelventil Vanne de réglage à siège droit 2/2 voies Operating Instructions Bedienungsanleitung Manuel d‘utilisation...
  • Page 2 We reserve the right to make technical changes without notice. Technische Änderungen vorbehalten. Sous réserve de modifications techniques. © Bürkert Werke GmbH & Co. KG, 2008 - 2020 Operating Instructions 2008/15_EU-ML_00805835 / Original DE...

  • Page 3: Table Of Contents

    Type 2301 Contents 7.6 General technical data ..........21 OPERATING INSTRUCTIONS ..........4 1.1 Definition of terms/abbreviations ........ 4 INSTALLATION ..............22 1.2 Symbols ............... 4 8.1 Safety instructions ............. 22 INTENDED USE ..............5 8.2 Before installation ............22 Installation ..............24 BASIC SAFETY INSTRUCTIONS .......... 5 8.4...

  • Page 4: Operating Instructions

    Type 2301 Operating instructions OPERATING INSTRUCTIONS Symbols The operating instructions describe the entire life cycle of the device. DANGER! Keep these instructions in a location which is easily accessible to Warns of an immediate danger. every user and make them available to every new owner of the ▶ Failure to observe these instructions will result in death or device. serious injuries. The operating instructions contain important safety WARNING! information. Warns of a potentially hazardous situation.

  • Page 5: Intended Use

    ▶ The device is designed to control the flow of liquid and gas- personnel. eous media. It can only be operated in combination with a corresponding control unit. DANGER! ▶ In potentially explosive environments, the Type  2301 globe control valve must only be used in accordance with the spec- Risk of injury due to high pressure and escaping medium. ifications on the separate Ex-type label. The additional infor- ▶ Before working on the system or device, switch off the pres- mation and safety instructions relating to Ex areas enclosed with the device must be adhered to when deploying the device.
  • Page 6 Type 2301 Basic safety instructions ▶ Following interruption of the process, ensure that the Risk of injury due to moving parts in the device. process is restarted in a controlled manner. Observe the ▶ Do not reach into openings in the device. sequence: Danger due to loud noises. 1. Apply electrical or pneumatic supply. ▶ Depending on the usage conditions, the device may generate loud 2. Charge with medium. noises. Detailed information on the probability of loud noises is ▶ Use the device only when it is in perfect condition and in available from the respective sales department.

  • Page 7: General Notes

    Type 2301 General notes GENERAL NOTES PRODUCT DESCRIPTION Contact addresses General description Germany The 2/2-way globe control valve Type  2301 is suitable for liquid and gaseous media. Bürkert Fluid Control Systems Sales Center Using neutral gases or air (control media), it controls the flow of Christian-Bürkert-Str. 13–17 water, alcohol, oil, fuel, hydraulic fluid, salt solution, lye, organic D-74653 Ingelfingen solvents and vapour (flow media). Tel. +49 (0) 7940 - 10 91 111 The Type 2301 globe control valve can only be used in combi- Fax +49 (0) 7940 - 10 91 448 nation with a control unit. Possible control units are: E-mail: info@burkert.com P ositioner Type 8692, 8694 and 8696 Process controller Type 8693...

  • Page 8: Properties

    Type 2301 Product description Properties 5.4.1 Options • Direct installation of the positioner Type 8692/8694/8696 or Control unit process controller Type 8693. Depending on the requirements, various control unit variants are available. • Optimal valve selection for the application via default 3 Cv values per DN (up to 5 Cv values for ½" DN). • Positioner Type 8692, 8694 and 8696 • High seal tightness due to self-adjusting packing gland (spindle • Process controller Type 8693 seal element). • Vacuum • Tight-sealing when using the PTFE/PEEK control cone. • FDA foodstuff compliance • High flow rate values due to the stainless steel valve body that • DVGW aids in flow. • ATEX • Large expansion space above the valve seat that prevents body • Reduced pilot pressure erosion caused by cavitation.

  • Page 9: Intended Area Of Application

    Type 2301 Structure and function STRUCTURE AND FUNCTION 5.4.2 Device variants Actuator sizes The Type 2301 globe control valve can only be used in The globe control valve is available for the following actuator combination with a control unit. sizes, depending on the DN: Possible control units are: Housing size DN Available actuator size ø [mm] Positioner Type 8692, 8694 and 8696 Process controller Type 8693 Structure The globe control valve consists of a pneumatically operated piston actuator, a control cone and a 2/2-way globe body. The control cone is modularly connected to the actuator spindle via a spring-type straight pin, and can thus be quickly replaced. Nearly all line connections are possible for the body. Bushing, Tab.

  • Page 10: Function

    For control function I – risk of pilot pressure failure. Actuator housing With control function I, the control unit and reset are pneumatic. No defined position is reached during a pressure failure. ▶ To ensure a controlled restart of the device, first apply pilot pressure and then activate the medium. Actuator/body interface with wrench flat Control function A (CFA) Closed by spring force in rest position Globe body Port connection Flow direction arrow or digits for indi- cating the flow direction Fig. 1:  G lobecontrolvalveType 2301,structureanddescription English...
  • Page 11 Type 2301 Structure and function 6.2.2 Flow direction below seat Control function B (CFB) Depending on the variant, the valve is closed against the medium Opened by spring force in rest position flow either with spring force (CFA) or pilot pressure (CFB or CFI). Because the medium pressure is below the control cone, it helps open the valve. WARNING! Valve seat leak if there is too little minimum pilot pressure or high medium pressure. Minimum pilot pressure for CFB and CFI that is too low, or failing to meet the permitted medium pressure, can cause a leak in the valve seat. ▶ Adhere to minimum pilot pressure. ▶ Do not exceed the medium pressure.

  • Page 12: Technical Data

    Type According to Pressure Equipment Directive observe the following operating conditions: Housing size Maximum pressure for compressible fluids 2301 B PTFE Kvs4,3 lin of Group 1 (dangerous gases and vapours PS 16bar Tmed -10...+130°C according to Art. 3, No. 1.3, letter a, first Flow 1 see manual for derating...

  • Page 13: Operating Conditions

    Type 2301 Technical data Operating conditions Derating pressure and temperature ranges Usage limits of the valve (derating medium pressure) Note the permitted ranges on the device type label! Temperature Medium pressure –10 – +50  °C 25 bar 7.4.1 Actuator temperature ranges 100 °C 24.5 bar 150 °C 22.4 bar Actuator size [mm] Environment 200 °C 20.3 bar ø 50 , ø 70 –10 – +60 °C 230 °C 19 bar ø 90 , ø 130 –10 – +100 °C Tab.3: DeratingthemediumpressureasperDIN EN 12516-1/PN25 Tab.2:...
  • Page 14 Type 2301 Technical data 7.4.3 Control medium Temperature Medium pressure In conjunction with pneumatic control units (positioner or process –10 – +50  °C 14 bar controller), pilot air as per DIN ISO 8573-1 must be used: 100 °C 14 bar • Class 3 (for water content) 150 °C 13.4 bar • Class 5 (for dust and oil content). 200 °C 12.4 bar The exact specification is described in the operating 230 °C 11.7 bar instructions for the respective positioner / process con- Tab.5: DeratingthemediumpressureasperJIS B 2220 10K troller in the chapter "Technical data". Usage limits of medium and ambient temperature 7.4.4 Pressure ranges...
  • Page 15 Type 2301 Technical data Medium pressure for control function A 6)  T hecontrolfunctionsaredescribedinchapter“6.2.1Control functions(CF)”. Max. sealed medium pressure [bar] Actuator size Steel/steel PTFE/steel PEEK/steel Variants with lower pilot pressure (reduced spring force) [mm] are available on request. 10/15 Contact your Bürkert sales department or the Bürkert ø 50 Sales Center (e-mail info@burkert.com). 10/15 Required minimum pilot pressure with control function B ø 70 depending on medium pressure 20/25 ø 50...
  • Page 16 Type 2301 Technical data ø 70 Ø130 SFB/SFI SFB/SFI DN10/15 DN20 DN65 DN25 DN80 DN100 Fig.5:  P ressurediagram,actuatorø 70 mm,controlfunction B Fig.7:  P ressurediagram,actuatorø 130 mm,controlfunction B ø 90 SFB/SFI DN50 Fig.6:  P ressurediagram,actuatorø 90 mm,controlfunction B English...

  • Page 17: Flow Values And Characteristics

    Type 2301 Technical data Flow values and characteristics Notes on the flow characteristic: • Linear cone for valve seat size 3 to 6 7.5.1 Flow characteristic • Cone of equal per cent for valve seat sizes 8 to 100 (valve seat size 6 optional with cone of equal per cent) Graphical presentation • Flow characteristic as per DIN EN 60534-2-4 The detailed values are listed in the following tables. • Theoretical rangeability (K ) for actuator size 70, 90, 130: 5 0: 1 for valve sizes 8 to 100 25: 1 for valve seat size 6 10: 1 for valve sizes 3 and 4 • K value at 5 % of the stroke for valve seat sizes > 10 value at 10 % of the stroke for valve seat sizes ≤ 10 ( K value = lowest K value at which the tilt tolerance as per DIN EN 60534-2-4 is still observed)
  • Page 18 Type 2301 Technical data Flow values Actuator values size [mm] Valve seat size [mm] 50–70 0.10 0.50 50–70 0.10 0.50 50–70 50–90 12.0 13.4 13.0 17.8 10.3 14.4 17.5 13.6 20.0 24.0 15.3 18.0 28.0 21.0 25.0 37.0 29.0 45.0 45.0 Tab.
  • Page 19 Type 2301 Technical data values Valve seat size Actuator size values [m Stroke [%] [mm] [in] [mm] [in] [mm] 3/8" 50–70 0.12 0.001 0.003 0.007 0.015 0.025 0.037 0.052 0.065 0.078 0.090 0.10 1/8'' 0.040 0.050 0.10 0.16 0.22 0.27 0.32 0.36...
  • Page 20 Type 2301 Technical data Valve seat size Actuator size values [m Stroke [%] [mm] [in] [mm] [in] [mm] 1 1/2" 1" 0.38 0.48 0.70 0.95 10.3 0.40 0.50 0.75 10.7 13.6 1 1/4" 0.45 0.55 0.80 10.8 14.4 0.48 0.60 0.65 11.0 15.0 20.0...

  • Page 21: General Technical Data

    Type 2301 Technical data General technical data Body ports Flange: D IN EN 1092-1, ANSI B 16.5, JIS 10K Valve seat always closes against Control functions (CF) medium flow Thread: G , RC, NPT (EN ISO 228-1, ISO 7/1/ Control function A C losed by spring force in rest position DIN EN 10226-2, ASME B 1.20.1) Control function B O pened by spring force in rest position Welded connection: E N ISO 1127 row 1/ISO 4200/ DIN 11866 row B, Control function I S ettings function of the alternating DIN 11850 row 2/DIN 11866 row A/ pressurisation (not for actuator size DIN EN 10357 row A,...

  • Page 22: Installation

    Type 2301 Installation INSTALLATION CAUTION! Risk of injury due to heavy device. Safety instructions During transportation or installation work, a heavy device may DANGER! fall down and cause injuries. ▶ Transport, install and remove heavy device with the aid of a Risk of injury from high pressure in the system. second person only. ▶ Before loosening lines and valves, turn off the pressure and ▶ Use suitable tools. vent the lines. WARNING! Before installation • Any installation position of the globe control valve is possible,...
  • Page 23 Type 2301 Installation → Loosen fastening screws (2 x). Exhaust port Install collet: → Pull the control unit upward. CFA, CFB Pilot air port CFI Fastening Control unit screw (2 x) Pilot air port Actuator CFA, CFB, CFI Nipple Wrench flat Actuator for open-end wrench Fig.9: Uninstall control unit Valve body Remove the actuator from the valve body: → Install collet (white nozzle) in pilot air port 1. Fig.10: Installation Other device variants NOTE! →...

  • Page 24: Installation

    Type 2301 Installation Installation 8.3.2 Installing the actuator (welded connection) WARNING! Risk of injury due to improper operation. Failure to observe the tightening torque value is dangerous due Seal to the risk of damage to the device. ▶ Use an open-end wrench for installation, never a pipe wrench. Fig. 11: Seal ▶ Observe tightening torque (see “Tab. 11”). → Check seal and replace if required. WARNING! Dirt trap for devices with approval according to EN 161 According to EN 161 "Automatic shut-off valves for gas burners...
  • Page 25 Type 2301 Installation 8.3.3 Install control unit Before installation, check the state of the control unit connections and align the actuator if necessary. For a description see chapter “8.3.4 Turning actuator”. Pilot air port → Remove the collet from pilot air port 1. Fig.12: Ports → Check the correct position of the O-rings in the pilot air ports. Tightening torques valve body/nipple → Align the puck and control unit such that Tightening torque [Nm] 1. the puck enters into the guide rail of the control unit and 10/15 45 ± 3 2. the connection pieces of the control unit enter into the pilot air connections of the actuator (see “Fig. 14”). 50 ± 3 NOTE! 60 ± 3 Damage to the printed circuit board or functional failure! 65 ± 3...
  • Page 26 Type 2301 Installation 8.3.4 Turning actuator NOTE! The position of the ports can be smoothly aligned by turning the Excessive torque when tightening the fastening screw actuator 360°. cannot ensure the degree of protection IP65/IP67. ▶ The fastening screws must only be applied with a maximum Only the actuator can be rotated. It is not possible to rotate torque of 1.5 Nm. the control unit against the actuator. → Attach the control unit to the actuator using the two lateral NOTE! fastening screws. Only lightly tighten the screws (maximum Damage to the valve seat seal or seat contour. torque: 1.5 Nm).

  • Page 27: Pneumatic Connection

    Type 2301 Installation Pneumatic connection WARNING! DANGER! Risk of injury from discharge of pressure and escaping medium. Risk of injury from high pressure in the system. The body connection can loosen when rotated incorrectly. ▶ Before loosening lines and valves, turn off the pressure and ▶ Only turn the actuator in the specified direction (see “Fig. vent the lines. 15”)! WARNING! → Place a suitable open-end wrench on the hexagon head of the actuator. Risk of injury due to unsuitable connection hoses.

  • Page 28: Start-Up

    Type 2301 Installation Start-up 8.4.1 Connecting the control medium → Connect the control medium to the pilot air port (1) (3–7 bar; Perform the X.TUNE after installing the device. This function instrument air, oil-/water-/dust-free). presets the control parameters. → Mount the exhaust air line or a silencer onto the exhaust air port (3) and, if available,onto the additional exhaust air port (3.1). See control unit operating instructions for a description. For usage in an aggressive environment, we rec- Disassembly ommend using a pneumatic hose to drain all free pneu- matic ports in a neutral atmosphere. DANGER! Risk of injury from discharge of pressure and escaping Exhaust air port medium. Dismantling a device which is under pressure is hazardous due Pilot air port to a sudden discharge of pressure or escaping medium. ▶ Before disassembly, shut off the pressure and vent all lines.

  • Page 29: Electrical Control Unit

    Type 2301 Electrical control unit ELECTRICAL CONTROL UNIT MAINTENANCE, CLEANING The Type 2301 valve can be combined with the following control 10.1 Safety instructions units: • Type 8692 Positioner DANGER! • Type 8694 Positioner Risk of injury from high pressure in the system. • Type 8696 Positioner ▶ Before loosening lines and valves, turn off the pressure and • Type 8693 Process controller vent the lines. Risk of injury due to electric shock.

  • Page 30: Maintenance Work

    Type 2301 Maintenance, cleaning Visual inspection: WARNING! According to the usage conditions, perform regular visual For control function I – risk of pilot pressure failure. inspections: With control function I, the control unit and reset are pneumatic. → Check medium ports for tightness. No defined position is reached during a pressure failure. → Check relief bore on the pipe for leaks. ▶ To ensure a controlled restart of the device, first apply pilot pressure and then activate the medium. Risk of injury due to moving parts in the device.

  • Page 31: Replacing Wearing Parts

    Type 2301 Maintenance, cleaning 10.3 Replacing wearing parts Remove the actuator from the valve body Pilot air port 10.3.1 Replacing the control cone set The control cone set consists of • Control cone • Spring-type straight pin Actuator Pilot air port • Seal • Lubricant Wrench flat Nipple for open-end...
  • Page 32 Type 2301 Maintenance, cleaning → Align boreholes in the control cone and spindle. Change control cone set → Support control cone on the cylindrical part using a prism or Seal something similar. → Set up the spring-type straight pin and carefully hammer it in. → Centre the spring-type straight pin with the spindle axis. Spindle Install actuator (with control unit) on the valve body Spring-type → Replace the seal if necessary. straight pin WARNING! Control cone Risk due to incorrect lubricants. Unsuitable lubricant may contaminate the medium. There is a risk of explosion in oxygen applications.
  • Page 33 Type 2301 Maintenance, cleaning 10.3.2 Replacing the valve seat set → Screw actuator into the valve body. Observe tightening torque (see “Tab. 1: Actuator sizes”). The actuator must be uninstalled when replacing the valve seat. Pilot air port The necessary steps are described in chapter “10.3.1 Replacing the control cone set”. Pilot air port When installing a valve seat with another DN, the identi- Fig.20: Ports fication number of the globe control valve changes. Tightening torques valve body/nipple The valve seat set consists of Tightening torque [Nm] • Valve seat • O-ring (depending on 10/15 45 ± 3...
  • Page 34 Type 2301 Maintenance, cleaning WARNING! Risk of injury due to improper operation. Failure to observe the tightening torque value is dangerous due Assembly tool to the risk of damage to the device. ▶ Only perform the replacement with special assembly tools (for order numbers see chapter “12.2 Assembly tools”). ▶ Observe the tightening torque (see “Tab. 12: Tightening torques valve body/nipple” and “Tab. 13: Tightening torques valve seat assembly”). Tool insert Procedure: → Replace the valve seat as described below when the actuator is removed. Valve seat Replacing valve seat → Use the assembly tool (with suitable tool attachment) and a Fig.21: Replacing the valve seat wrench to unscrew the old valve seat.
  • Page 35 Type 2301 Maintenance, cleaning → Grease the valve seat thread using a suitable lubricant (e.g. Install actuator (with control unit) on the valve body Klüberpaste UH1 96-402 from Klüber). → Replace the seal if necessary. → Manually screw attached valve seat into the valve body WARNING! thread. → Tighten valve seat using torque wrench. Observe tightening Risk due to incorrect lubricants. torque (see “Tab. 13”). Unsuitable lubricant may contaminate the medium. There is a risk of explosion in oxygen applications. ▶ For specific applications, e.g. oxygen or a nalysis applica- Tightening torques valve seat assembly tions, use approved lubricants only.
  • Page 36 Type 2301 Maintenance, cleaning 10.3.3 Replacing the packing gland Pilot air port The seal set for the packing gland includes SP10/SP14 Pilot air port • 1 support ring Fig.22: Ports • 5 chevron seals Tightening torques valve body/nipple • 2 or 3 thrust collars Tightening torque [Nm] • 1 compression spring 10/15 45 ± 3 • 1 seal 50 ± 3 • Lubricant 60 ± 3...
  • Page 37 Type 2301 Maintenance, cleaning Remove the actuator from the valve body DANGER! → Clamp valve body in a collet (only for valves which have not Risk of injury from discharge of pressure and escaping yet been installed). medium. NOTE! Dismantling a device which is under pressure is hazardous due Damage to the valve seat seal or seat contour. to a sudden discharge of pressure or escaping medium. ▶ When turning the actuator, the valve must be in the open ▶ Before disassembly, shut off the pressure and vent all lines.
  • Page 38 Type 2301 Maintenance, cleaning Remove control cone Replacing packing gland PEEK spindle guide (series-production status until April 2012): Seal → Unscrew spindle guide using the installation wrench and an Spindle open-end wrench. VA spindle guide SP10/SP14 (series-production status as of Spring-type April 2012): straight pin → Unscrew spindle guide using a modified socket wrench VA spindle guide SP22: Control cone → Unscrew VA spindle guide using an open-end wrench. Fig.25: Replacing the control cone set NOTE! Packing gland tube Important for impeccable and stable device function! Packing gland The seal surface of the control cone must not be damaged.
  • Page 39 Type 2301 Maintenance, cleaning WARNING! Packing gland tube Risk of injury due to parts being ejected. Packing When the spindle opening is exposed, the individual parts of the gland packing gland will be pressed out at an undefined speed when VA spindle guide the pilot air port is pressurised. ▶ Before pressurising with pilot air, safeguard the area around Spindle the outlet, (e.g. place spindle on a firm surface). Pilot air port Hexagon head Pilot air port Fig.27: Replacingthepackinggland(VAspindleguide) Fig.29: Ports Packing gland tube →...
  • Page 40 Type 2301 Maintenance, cleaning If the valve is equipped with a PEEK spindle guide (SP10/ SP14 series-production status up to April 2012), we rec- Support ring ommend replacing it with a VA spindle guide (see “Tab. Upper chevron seals 23: VA spindle guide for packing gland” on page 46). Upper thrust collar → Lubricate the spindle guide thread (Klüberpaste UH1 96-402). → Screw spindle guide back in. Observe tightening torque (see “Tab. 15: Tightening torques spindle guide”). Compression spring Support Lower thrust collar ring Upper chevron Lower chevron seals seals Upper thrust collar (s) Spacer Compression spring Lower thrust Spindle diameter 22 mm collar Fig.31: SealsetforpackingglandSP22 Lower chevron seals Spindle diameter 10 mm Spindle diameter 14 mm Fig.30: Sealsetforpackinggland English...
  • Page 41 Type 2301 Maintenance, cleaning Install actuator (with control unit) on the valve body Tightening torques spindle guide → Replace the seal if necessary. Spindle Spindle guide Tightening diameter material torque [Nm] WARNING! 10 mm PEEK Risk due to incorrect lubricants. 10/15 1.4401/1.4404/316L Unsuitable lubricant may contaminate the medium. There is a 20/25 risk of explosion in oxygen applications. ▶ For specific applications, e.g. oxygen or a nalysis applica- tions, use approved lubricants only.

  • Page 42: Faults

    Type 2301 Faults FAULTS Pilot air port Fault Elimination Pilot air port Actuator does Pilot air port interchanged not switch → Connect pilot air port 1 Fig.32: Ports → Connect pilot air port 1 Tightening torques valve body/nipple → Pilot air port 1: Opening Tightening torque [Nm] pilot air port 2: Closing 10/15 45 ± 3 Pilot pressure too low 50 ± 3 → Observe pressure specifications on the 60 ± 3...

  • Page 43: Spare Parts

    Type 2301 Spare parts SPARE PARTS Fault Elimination WARNING Valve is not tight Dirt between seal and valve seat → Install dirt trap Risk of injury when opening the actuator. Valve seat seal worn The actuator contains a spring under tension. The spring that ejects → install new control cone when the actuator opens may cause injuries. ▶ The actuator must not be opened. Flow direction interchanged →...
  • Page 44 Type 2301 Spare parts 12.1.1 Replacement part set • Spindle guide for packing gland VA spindle guide, seal, lubricant Control cone set 1 Seal contains: Control cone, spring-type straight pin, seal 7 VA spindle guide 2 Spring-type SP10/SP14 Control cone set Valve DN [mm] Order number straight pin 8 w VA spindle guide seat size Steel/steel...
  • Page 45 Type 2301 Spare parts Control cone set Valve seat set contains: Control cone, spring-type straight pin, seal contains: Valve seat, O-ring (depending on variant), seal Valve DN [mm] Order number Valve DN [mm] Order. no. Valve DN [mm] Order. no. seat size seat size seat size Steel/steel PTFE/steel PEEK/steel [mm] [mm] [mm] 226 956 226 968 301323 10.15...

  • Page 46: Assembly Tools

    Type 2301 Spare parts 12.2 Assembly tools Seal set for packing gland Only for PEEK spindle guide: Order Order Order Installation wrench for packing gland number Actuator number number Body DN High tem- (Series-production status up to January 2013) size Standard Hot water perature device device Installation wrench Order number device Spindle diameter 10 mm...

  • Page 47: Transport, Storage, Packaging

    Type 2301 Transport, storage, packaging TRANSPORT, STORAGE, Assembly tool for replacing valve seat PACKAGING Body DN Valve seat size Order number 4, 6, 8, 10, 15 652 604 NOTE! 10, 15, 20 652 605 Transport damage. 15, 20, 25 652 606 Inadequately protected devices may be damaged during transport. 20, 25, 32 652 607 • Protect the device against moisture and dirt in shock-re- 25, 32, 40 652 608 sistant packaging during transport.
  • Page 48 www.burkert.com...

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