SUMMARY
Introduction ........................................................................ 1
PED Categories and Fluid Group ...................................... 2
Characteristics ................................................................... 2
Labelling ............................................................................ 2
Overpressure Protection .................................................... 3
Transport and Handling ..................................................... 3
Atex Requirements ............................................................ 3
Slam-Shut Controller ......................................................... 4
Dimensions and Weights ................................................... 5
Operation ........................................................................... 6
Installation ......................................................................... 7
Startup ............................................................................... 8
Slam-Shut Controller Adjustment ...................................... 9
Shutdown ........................................................................... 9
Maintenance ...................................................................... 9
Slam-Shut Controller Maintenance .................................... 10
Spare Parts ........................................................................ 11
Troubleshooting ................................................................. 12
Parts Lists .......................................................................... 12
Schematic Assemblies ....................................................... 14
INTRODUCTION
Scope of the Manual
This manual provides instructions for installation, startup,
maintenance and spare parts ordering for the BM5 Series
slam-shut valves. It also contains information for the
OS/80X Series slam-shut controller.
Product Description
The BM5 Series slam-shut valves are axial ow type with
a single seat and counterbalanced shutter and are used in
regulating, distribution and transmission stations of suitably
ltered natural gas.
This product has been designed to be used with fuel gases
of 1
st
and 2
nd
family according to EN 437, and with other non
aggressive and non fuel gases. For any other gases, other
than natural gas, please contact your local sales agent.
The standard gas pressure devices (safety shut-off
devices - SSD slam-shut type) are those used in the
assemblies dealt with into EN 12186 and EN 12279 and their
use has to be under the provisions into ENs 12186 & 12279.
In the safety slam-shut valves manufactured by Emerson
shall be used additional pressure accessories (e.g. controller
or lters) manufactured and labeled by Emerson.
Emerson will be not responsible for any possible inefciency
due to installation of not own production additional
pressure accessories.
When pressure containing parts of safety slam-shut device
(SSD) valve and controller have different maximum allowable
pressures (PS), the SSD is differential strength type.
BM5 Series Slam-Shut Valve
Figure 1. BM5 Series Slam-Shut Valve
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