Bredel 25 Additional Information
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Bredel 25 Additional Information

Pumps with bare shaft configuration
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BREDEL PUMP SERIES
Additional information on Bredel 25 and Bredel 32 pumps with bare shaft configuration

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Summary of Contents for Bredel 25

  • Page 1 BREDEL PUMP SERIES Additional information on Bredel 25 and Bredel 32 pumps with bare shaft configuration...
  • Page 2 Additional information on Bredel 25 and Bredel 32 pumps with bare shaft configuration Original Instructions...
  • Page 3 Watson-Marlow Bredel B.V. The information provided can be changed without prior notification. Watson-Marlow Bredel B.V. or one of its representatives cannot be held liable for possible damage resulting from use of this manual. This is an extensive limitation of the liability which...

  • Page 4: Table Of Contents

    Assembling the bare shaft kit ..............15 Mounting the bare shaft kit onto the pump ........... 17 TROUBLESHOOTING SPECIFICATIONS Bredel 25 bare shaft set ................ 21 6.1.1 Support set ................21 6.1.2 Bare Shaft Kit ................22 Bredel 32 bare shaft set ................ 23 6.2.1 Support set ................

  • Page 5: General

    Service and Support For information with respect to specific adjustments, installation, maintenance or repair jobs which fall beyond the scope of this manual, contact your Bredel representative. Make sure you have the following data at hand: • Type and / or serial number of the hose pump.

  • Page 6: Used Products And The Environment

    Intended Use and Remarks on Safety The bare shaft set is exclusively designed for supporting a Bredel pumphead and a drive. Every other use is not in conformance with the intended use. Refer to the manual of the pumphead for more information on...

  • Page 7: Warranty Conditions

    GENERAL Warranty Conditions Refer to the manual of the pumphead for warranty conditions. These conditions are applicable to the bare shaft set as well. Damaged parts of the bare shaft set that are returned to the manufacturer must be accompanied by a fully filled in and signed safety form that can be found in the manual of the pumphead.

  • Page 8: Description

    Destined for pump- Support set (A) Bare shaft kit (B) Coupling size (C) head Bredel 25 Bredel 25 Bareshaft Bredel 25 Bareshaft Support Set Bredel 32 Bredel 32 Bareshaft Bredel 32 Bareshaft Support Set...

  • Page 9: Installation

    Follow the unpacking instructions on the packaging. Check that your delivery is correct and does not have transport damage. Report any damage immediately to your Bredel representative. This chapter will treat the installation of the bare shaft set. Refer to the manual of the pumphead for installation and setup of the complete pump and the pipework.

  • Page 10: Mounting The Support Set And The Bare Shaft Kit To The Pumphead

    INSTALLATION 3.2.1 Mounting the Support Set and the Bare Shaft Kit to the Pumphead For mounting the kit to the pumphead, the pump must be disconnected from the process line and must be free of lubricants. Place the bare shaft kit (A) on a flat surface with the key end upward.
  • Page 11 INSTALLATION Use a hoist to place the pumphead (A) with the hub of the bare shaft kit against the support set (C). The coupling guard should be removed. Place washers and nuts (B). Tighten the nuts in at least two crosswise cycles.

  • Page 12: Mounting And Aligning The Drive

    INSTALLATION 3.2.2 Mounting and aligning the Drive Use a hoist to lift the heavy drive. Mounting and aligning the drive must be done on the pump’s final operation position. Moving the complete pump assembly after alignment will require re- alignment at the pump’s final operation position.
  • Page 13 INSTALLATION Place coupling half (B) on the output shaft of the drive and slightly fasten screw (C). Make sure the shaft end has been shifted far enough into the coupling half but will not penetrate into the coupling spider (A). Use a hoist to place the drive on the support set.
  • Page 14 INSTALLATION Drive a pin (A) into each drilled hole to fix the horizontal plate in the support set side plates. Use two alignment jigs (D) to check the C D C E alignment of the coupling halves in the horizontal plane. Looking from above both coupling halves (C) must touch the edge of both jigs.

  • Page 15: Maintenance

    MAINTENANCE MAINTENANCE Cleaning Warning When cleaning the pump do not use a high-pressure spraying pistol. This might damage the seal and the bearing. Demounting the bare shaft kit When the bare shaft kit is demounted the pumphead will come loose from the support set.
  • Page 16 MAINTENANCE Remove the bolts (B) to remove the coupling guard (A). Loosen the fasteners (A) to demount the pumphead from the support set. Move the pumphead away from the support set. Demount the bare shaft kit (A).

  • Page 17: Disassembling The Bare Shaft Kit

    MAINTENANCE Disassembling the bare shaft kit Remove coupling half (B) from the shaft by loosening screw (A). Use a suitable pulling device. Do not put axial load on the bearing if it is to be reused. Remove retaining ring (A). Remove key (B).

  • Page 18: Assembling The Bare Shaft Kit

    MAINTENANCE Remove the retaining ring (B). Remove bearing (C) from shaft (A). Use a suitable pulling device. Remove seal (A) from hub (B). If the seal is to be replaced pliers can be used. Assembling the bare shaft kit Check the bearing and the seal before reuse. If necessary use a new bearing and a new seal.
  • Page 19 MAINTENANCE Use a suitable tool to press seal (A) into the hub (B) until it hits the collar. Keep the closed side of the seal upward. Put an excessive amount of grease on the lip of the seal. Clean the contact surfaces (A) for bearing and seal on the shaft (B).

  • Page 20: Mounting The Bare Shaft Kit Onto The Pump

    MAINTENANCE Place key (B) onto the shaft. Place retaining ring (A) into the hub. Mount a coupling half on the shaft end. See section 3.2.1 step 1. Mounting the bare shaft kit onto the pump For this procedure the pumphead should still be hanging in the hoist while the support set is still demounted.
  • Page 21 MAINTENANCE Tighten the bolt or nuts in at least two crosswise cycles. In the last cycle tighten them with the correct torque. See section 6.4. Tighten the screw (A) to fix the coupling half on the bare shaft end. Check the alignment of the coupling halves with the alignment jigs (See section 3.2.2).

  • Page 22: Troubleshooting

    TROUBLESHOOTING TROUBLESHOOTING WARNING Disconnect and lock the power supply to the pump drive before any work is carried out. In case the motor is fitted with a frequency controller and has a single phase power supply, wait at least two minutes to make sure that the capacitors have discharged.
  • Page 23 TROUBLESHOOTING Problem Possible cause Correction Cyclic movement of the Misalignment of pumphead Check the alignment of pumphead. and drive. pumphead and drive. See chapter 3. Check the fixation of the pumphead and the drive to the support set. Check the fixation of the support set components.

  • Page 24: Specifications

    SPECIFICATIONS SPECIFICATIONS Bredel 25 bare shaft set 6.1.1 Support set Pos. Qty. Description Size Material Pump support steel Gearbox support steel Coupling guard steel ISO 8750 - 8 x 24 steel Plain washer steel Hexagonal bolt M6 x 16 steel...

  • Page 25: Bare Shaft Kit

    SPECIFICATIONS 6.1.2 Bare Shaft Kit Pos. Qty. Description Size Material steel Shaft steel Bearing 6207-2RS1 steel Radial shaft seal CR 40 x 52 x 8 - HMS5 Retaining ring DIN 471 - A35 steel Retaining ring DIN 472 - 72 steel Parallel key DIN 6885A - 8 x 7 x 56...

  • Page 26: Bredel 32 Bare Shaft Set

    SPECIFICATIONS Bredel 32 bare shaft set 6.2.1 Support set Pos. Qty. Description Size Material Pump support steel Gearbox support steel Coupling guard steel ISO 8750 - 8 x 24 steel Plain washer steel Hexagonal Bolt M6 x 16 steel Thick flat washer...

  • Page 27: Bare Shaft Kit

    DIN 6885A - 12 x 8 x 70 steel Weights Bare Shaft Set Weights [kg] Support set Bare shaft kit Coupling* Bredel 25 19.0 Bredel 32 26.1 *Coupling weight is an approximation. The actual weight depends on the used coupling type.

  • Page 28: Torque

    SPECIFICATIONS Torque Following table shows general tightening torques for steel fasteners with metric thread. Metric thread size Torque [Nm] Drill diameter [mm] Coupling These are specifications of the flexible couplings which are delivered as part of a complete pump based on the bare shaft solution.

  • Page 31: Safety Form

    In compliance with our Health & Safety Regulations, the user is required to declare any substances that have been in contact with the item(s) being returned to Watson-Marlow Bredel B.V. or any of its subsidiaries or distributors. Not following these requirements may lead to delays in service and/ or response time. Full completion of this form assures we are provided with necessary information before receipt of the item(s) being returned.
  • Page 33 Watson-Marlow Bredel B.V. P.O. Box 47 NL-7490 AA Delden The Netherlands Telephone: +31 (0)74 3770000 Fax: +31 (0)74 3761175 E-mail: Bredel@wmftg.com Internet: www.wmftg.com © 2017 Watson-Marlow Bredel B.V.
  • Page 34 A Spirax-Sarco Engineering Company The information contained in this document is believed to be correct at the time of publication, but Watson-Marlow Bredel B.V. accepts no liability for any error it contains, and reserves the right to alter specifications without prior notice. All mentioned values in this document are values under controlled circumstances at our test bed.

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