Europe,
Middle
East,
and
Africa
Only
Type FL
Instruction Manual
0014EN-FL-IM
November 2008 - Rev. 01
FL Series Pilot-Operated Pressure Regulator
Figure 1.
Regulator Type FL with PRX Pilot
SummaRy
Introduction ........................................................................ 1
P.E.D. Categories and Fluid Group ................................... 2
Characteristics ................................................................... 2
Labelling ............................................................................ 3
Overpressure Protection .................................................... 3
Transport and Handling ..................................................... 3
Atex Requirements ............................................................. 4
Description ......................................................................... 4
Pilots .................................................................................. 5
Dimensions and Weights ................................................... 6
Operation ........................................................................... 8
Installation ......................................................................... 9
Startup ............................................................................... 11
Pilot Adjustment ................................................................. 12
Shutdown ........................................................................... 12
Periodical Checks .............................................................. 12
Regulator Maintenance ..................................................... 12
Type OS/80X Actuator Maintenance ................................. 15
Type PS/ and PRX/ Pilot Maintenance .............................. 16
Type V/31-1 Booster Valve Maintenance .......................... 20
Type SA/2 Stabilizer Filter Maintenance ............................ 20
Spare Parts ........................................................................ 20
Troubleshooting ................................................................. 21
Parts List ............................................................................ 23
Schematic Assemblies........................................................ 28
INTRODuCTION
Scope of manual
This manual provides instructions for installation, startup,
maintenance and spare parts ordering for the FL Series
pilot operated regulators. It also contains information for the
actuator, pilots, booster valves and filter.
Product Description
The FL Series pilot operated regulators are axial flow type
with a single seat and counterbalanced shutter.
The following versions are available:
FL:
Regulator
mFL:
Regulator - Monitor
BFL:
Regulator - Slam-shut Device
Type SR, SRII and/or SRS silencers are also available.
All standard gas pressure devices (regulators and safety
shut-off devices) used in assemblies will comply to EN
12186 and EN 12279 standards.
Any accessories (e.g. pilots or filters) used on the Emerson
Process Management range of pressure regulators,
with or without built-in safety shut-off devices, must be
manufactured by one of the Emerson Process Management
companies and bear that label.
If this is not respected, Emerson Process Management will
not be responsible in the case of any inefficiency.
In a configuration with integrated safety shut-off device and
pilot, when the maximum allowable pressures are different,
the slam-shut device is the differential strength type.
