Part Number:
2A33687
Release Date:
8/27/2015
Revision: B
11
Methods to operate Relief Valve
Weir’s SPM
®
EXL Relief Valve can be operated in the following ways:
1. Standard Gauges - This method uses the traditional regulators that are used to calibrate an adjacent
Relief Valve.
2. Legacy Control Panel – This method encompasses the standard gauges into a control panel that can be
accessed away from the Relief Valve. Additional information can be found in “ SPM
®
Back Pressure RV
Control Panel Setting Guide” and accessed via
www.WeirInAction.com/downloads
3. Automated Relief Valve Control System (ARC System) – This system allows the operator to input a
POP off and RESET pressure via an electrical control panel that automatically controls the Relief Valve
by monitoring a high pressure transducer that is installed on the main treating iron. Additional
information can be found in “Automated Relief Valve Control (A.R.C.) System ” and accessed via
www.WeirInAction.com/downloads
Standard Gauges - Calibration Guide
This guide is to be used when calibrating the SPM
®
EXL Back Pressure Relief Valve. The valve should be set
at a minimum of 1000 PSI above system fluid pressure. If the valve is sequenced prior to each stage, than
valve life decreases due to frequent exposure to abrasive fluids. The more the valve is exposed to abrasives,
the greater likelihood that the valve will not reseat and possible washing may occur. The following information is
to be used as a best practices guide, based on extensive field utilization, to assist the user in more convenient
and accurate operation of the relief valve system. Refer to Figure 3 for N2 tank setting components.
WARNING: BLEED ALL PRESSURE FROM THE SYSTEM! (REFER TO DISASSEMBLY SECTION
PG. 23)
