Type M
Instruction Manual
D103658X012
January 2015 - Rev. 00
TM
Summary
Introduction ........................................................................
1
P.E.D. Categories and Fluid Group ...................................
2
Characteristics ...................................................................
2
Labelling ............................................................................
2
Overpressure Protection ...................................................
3
Transport and Handling .....................................................
3
Atex Requirements ............................................................
3
Slam-Shut Controller ..........................................................
3
Dimensions and Weights ...................................................
4
Operation ...........................................................................
5
Installation .........................................................................
6
Startup ...............................................................................
7
Adjustment .........................................................................
8
Shutdown ..........................................................................
8
Periodical Checks ..............................................................
8
Maintenance ......................................................................
8
Spare Parts ........................................................................
9
Troubleshooting .................................................................
10
Parts List ............................................................................
10
Schematic Assemblies .......................................................
11
INTrODuCTION
Scope of manual
This manual provides instructions for installation, startup,
maintenance and spare parts ordering for the M series
spring loaded regulators.
Product Description
The M series regulators are fail open, differential strength, spring
loaded whit counterbalanced shutter. They can be provided with
slam-shut controller for minimum pressure, maximum pressure
or minimum and maximum downstream pressure.
The regulators of the M series due to their operating
specifications are mainly used in those system where
sudden capacity variations are required, or else, where the
cut-off of the gas distribution is controlled by solenoid valve,
such as for the feeding of burners.
Figure 1.
Regulator Type MBN
This product has been designed to be used with fuel gases of
1st and 2nd 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 following versions are available:
mN
•
mF:
Regulator
(pressure accessories)
mBN
•
mBF:
Regulator with slam-shut
(safety accessories)
mBN-m
•
mBF-m:
Monitor with slam-shut
(safety accessories)
MN, MF, MBN and MBF series with SR silencer are also
available.
The standard gas pressure devices (regulators and safety
shut-off devices) 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 pressure regulators manufactured by Emerson
Process Management shall be used additional pressure
accessories (e.g. slam-shut controller) manufactured and
labeled by Emerson Process Management.
Emerson Process Management will be not responsible
for any possible inefficiency due to installation of not own
production additional pressure accessories (e.g. slam-shut
controller).
When pressure containing parts of possible built-in safety
shut-off device (SSD) valve and pilot have different
maximum allowable pressures, the SSD is differential
strength type.
m Series Pressure regulators