Watson-Marlow 620RA - Manual

ATEX: Watson-Marlow 620RA, 620REA and 620RE4A pumpheads User Manual 1
cased pumps:
Section 2 of 3: Operating manual
ATEX: Directive (94/9/EC) and
Watson-Marlow’s 620RA, 620REA,
and 620RE4A pumpheads
WATSON-MARLOW MANUALS
m-atex620ra-gb-03-PB0347-2
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 are suitable for use in hazardous environments; ATEX compliant pumps from
the 600 series are listed below, in Section 2 “Pump models”.
All of Watson -Marlow’s ATEX pumps have been rated as Group II, Category
2G IIB c T4 equipment. The 620RA, 620REA and 620RE4A pumpheads are intended
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 ATEX drives.
This document provides specific ATEX information and should be used in
conjunction with the original user manual.
Contents
1 Introduction 1
2 Pumphead types 2
3 Hazardous environments 2
4 Operating parameters 3
5 Potential pump hazards 4
6 Installation guidelines 5
7 Tube life 6
8 Tube materials in
ATEX applications
7
9 Servicing and cleaning
requirements 8
10 Materials of construction:
620RA pumpheads 9
11 Summary of modifications 10
12 ATEX marking 10
13 Replacements 10
14 Manufacturer’s Declaration 11