Goulds Pumps HT 3196 i-FRAME - IOM - Manual (Page 10)

Safety regulations for Ex-approved products in potentially explosive
atmospheres
Description of ATEX
The ATEX directives are a specification enforced in Europe for electrical and non-electrical equipment.
ATEX deals with the control of potentially explosive atmospheres and the standards of equipment and
protective systems used within these atmospheres. The relevance of the ATEX requirements is not limited
to Europe. You can apply these guidelines to equipment installed in any potentially explosive atmosphere.
Guidelines for compliance
Compliance is only fulfilled when the pump is operated within its intended use, for example within its
intended hydraulic range. The conditions of the service must not be changed without approval of an
authorized ITT representative. When installing or maintaining explosion-proof pumps, follow these
guidelines:
• Always install ATEX-approved equipment in compliance with the directive and applicable standards
(IEC/EN 60079–14).
• Do not install explosion proof products in locations that are classified as hazardous in the national
electric code, ANSI/NFPA 70–2005.
WARNING:
This manual clearly identifies accepted methods for disassembling units. These methods must be adhered
to. Trapped liquid can rapidly expand and result in a violent explosion and injury. Never apply heat to
impellers, propellers, or their retaining devices to aid in their removal.
If there are any questions regarding these requirements, the intended use, or if the equipment requires
modification, contact an ITT representative before you proceed.
Personnel requirements
ITT disclaims all responsibility for work done by untrained and unauthorized personnel.
These are the personnel requirements for Ex-approved products in potentially explosive atmospheres:
• All work on the product must be carried out by certified electricians and ITT-authorized mechanics.
Special rules apply to installations in explosive atmospheres.
• All users must know about the risks of electric current and the chemical and physical characteristics of
the gas and/or vapor present in hazardous areas.
• Any maintenance for Ex-approved products must conform to international and national standards
(for example IEC/EN 60079-17).
Product and product handling requirements
These are the product and product handling requirements for Ex-approved products in potentially
explosive atmospheres:
• Only use the product in accordance with the approved motor data stated on the nameplates.
• The Ex-approved product must never run dry during normal operation. Dry running during service
and inspection is only permitted outside the classified area.
• Never start a pump without the proper priming.
• Before you start working with the product, make sure that the product and the control panel are
isolated from the power supply and the control circuit, so they cannot be energized.
• Do not open the product while it is energized or in an explosive gas atmosphere.
• Make sure that thermal contacts are connected to a protection circuit according to the approval
classification of the product.
• Intrinsically safe circuits are normally required for the automatic level-control system by the level
regulator if mounted in zone 0.
• The yield stress of fasteners must be in accordance with the approval drawing and the product
specification.
Introduction and Safety
8 Model HT 3196 i-FRAME Installation, Operation, and Maintenance Manual