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Watson Marlow Pumps 800 Series Manual

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ATEX Directive: Watson-Marlow 800 series pumps and pumpheads User Manual
WATSON-MARLOW BREDEL MANUALS
m-atex800-gb-01: PB0356
ATEX Directive (94/9/EC) and
Watson-Marlow's 800 series
pumps and pumpheads
Contents
1
Introduction
2
3
4
5
6
7
1. Introduction
Directive 94/9/EC, commonly known as the ATEX directive, carries obligations to the
person who places equipment on the market, in the EU territory, for use in
potentially explosive environments. A number of pumps manufactured by Watson-
Marlow Bredel are suitable for use in hazardous environments; ATEX compliant pumps
from the 800 series are listed in Section 2 Pump models.
Watson-Marlow's 800 series ATEX pumps have been rated as Group II, Category 2
equipment for use in gas based environments only. The pumpheads are sold
individually (for use with customer specified ATEX drives) and in defined
configurations complete with Watson-Marlow ATEX drives.
This document provides specific ATEX information and must be used in
conjunction with the original 825/840 user manual (800-gb-01.pdf).
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Summary of Contents for Watson Marlow Pumps 800 Series

  • Page 1: Table Of Contents

    Marlow Bredel are suitable for use in hazardous environments; ATEX compliant pumps from the 800 series are listed in Section 2 Pump models. Watson-Marlow’s 800 series ATEX pumps have been rated as Group II, Category 2 equipment for use in gas based environments only. The pumpheads are sold individually (for use with customer specified ATEX drives) and in defined configurations complete with Watson-Marlow ATEX drives.

  • Page 2: Pump Models

    2. Pump models 800 series ATEX pumps and pumpheads are quoted on application by Watson- Marlow’s applications engineering department. Part codes may vary depending on the final build specification and the customer. Watson-Marlow cased drives are not ATEX-compliant and must not be used in hazardous locations.

  • Page 3: Operating Parameters

    9.0mm and 12.8mm. Electronic testing (to EN13463-1: 2001(E) annex C) has determined that the use of STA-PURE tubing limits the 800 series ATEX rating to equipment group IIA. Please contact Watson-Marlow for further information. Only Watson-Marlow tubing should be used to guarantee continued compliance with the ATEX directive.

  • Page 4: Potential Pump Hazards

    In order to dissipate electrostatic charge effectively there must be sufficent electrical contact between the pumphead and the suitably earthed drive. It is imperative that the 800 series pumpheads are earthed by connecting the earth terminals (seen in the photograph below) to earth (usually via a suitable point on the pump drive, as seen here).

  • Page 5: Tube Life

    WARNING: The tube connectors are isolated metal parts and have no path to earth via the pumphead. 800 series ATEX pumps are designed to be connected into conductive metal piping systems, where static charge on the tube connectors is dissipated via the pipe system earthing arrangement.

  • Page 6: 8 Servicing And Cleaning

    (which can become electrostatically charged and/or heated by friction). Tube loading 800 series pumpheads use Watson-Marlow tube elements. Specific tube loading in- structions are contained within the 825/840 operating manual which can be found on the E-manuals CD supplied with each pumphead (CDR0600).

  • Page 7: 9 Materials Of Construction

    However, if there are any aggressive chemicals present then it is imperative that a risk assessment is conducted. This must not be limited to just the pumped fluid but should also include any other aggressive fluids in the intended operating environment. ATEX Directive: Watson-Marlow 800 series pumps and pumpheads User Manual...

  • Page 8: Summary Of Modifications

    EExd switches. These are upgraded to ATEX for the ATEX-compliant 800 series The installation of appropriate pressure-relief Over-pressure protection equipment is mandatory to avoid exceeding the (not supplied) safe operating limits of the pump (following any blockage) ATEX Directive: Watson-Marlow 800 series pumps and pumpheads User Manual...

  • Page 9: Atex Marking

    11. ATEX marking The 800 series ATEX pumpheads have been marked with the following labels: 12. Replacements Spares and replacements should be ordered through Watson-Marlow Bredel Pumps or through an offical representative. Only Watson-Marlow spares and replacements should be used in order to guarentee continued compliance with the ATEX Directive.

  • Page 10: Manufacturer's Declaration

    13. Manufacturer’s Declaration ATEX Directive: Watson-Marlow 800 series pumps and pumpheads User Manual...

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