Installation, Operation and Maintenance Manual
Pressure Regulating Valve – Model Ares N
MI–42
Prepared by
Verified by/ Approved by
CSQ
Date
Revision
Page
José Junior
Vanízio Lizo
Jamerson
24/03/17
02
9 of 21
3.1 EMBEDED BLOCKING VALVE – MODEL G-10
Optionally, the pressure regulator can be provided with a built-in shut-off valve for overpressure, limited to 600 mbar. This
is the model ARES N G-10.
The shutoff valve consists of an actuator with coupling by a ball collar (1) that monitors the output pressure. If the operating
pressure increasing beyond the set limit, the bushing outside the ball coupling (2) is displaced, this allows movement of the
central steam (3), which will presses the shutter (4) against the seat, freeing the locking system, and interrupting the gas
flow. After restoration of the normal working conditions, it is necessary to manually reset the valve.
4.0 - INSTALLATION
4.1 FILTER
We recommend the installation of a cartridge type filter, with 5 micra filtration degree, as close to the regulator inlet as
possible, without being joined flange to flange, because the filter installed immediately upstream of the regulator may
produce turbulence and cause disturbance in the pressure control of the regulator. Care in filter installation is essential for
the regulator proper operation, as any existing particles in the pipe may take lodge between the seat and the shutter,
damaging them and causing feedthrough.
4.2 CLEANING
Check the pipe cleaning before valve installation. We advise a complete purge of the line with nitrogen or compressed air.
4.3 FLOW DIRECTION AND SYSTEM INTEGRITY
Before starting the equipment installation, it is necessary to check if:
1) The equipment is in perfect conditions, or it has evidence of damage during transportation. If so, do not proceed
with the installation and contact GASCAT.
2) The space provided for access and installation of the equipment is adequate for future maintenance.
3) The installation is designed to support the load applied by the equipment.
4) The inlet and outlet connections, where the pressure regulator shall be installed, are perfectly aligned.