Consolidated 2478 Series Pressure Relief Valve Manual
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© 2020 Baker Hughes Company. All rights reserved.
Lower pressure and stand
clear of discharge when
working on valve to avoid
severe personal injury or
death.
Know all valve exhaust/
leakage points to
avoid possible severe
personal injury or death.
II. Safety Precautions
Follow all plant safety regulations, but be sure to observe the following:
• Always lower the working pressure before making any valve adjustment. When
making ring adjustments, always gag the valve before making the adjustment. This
will avoid possible personal injury.
• Do not stand in front of the discharge side of a safety valve when testing or
operating.
• Hearing and eye protection should be used when testing or operating a valve.
• Wear protective clothing. Hot water can burn and superheated steam is not visible.
• When removing the safety valve during disassembly, stand clear and/or wear
protective clothing to prevent exposure to splatter, or any corrosive process medium,
which may have been trapped inside the valve. Ensure the valve is isolated from
system pressure before the valve is removed.
• Exercise care when examining a safety valve for leakage.
• Prior to each actuation, assure that no personnel are near the valve. Steam
escaping from the valve during actuation can possibly cause personal injury.
• When popping a safety valve for the first time, or after refurbishment, always be
prepared to actuate the valve with the lever while standing in a safe place away from
the valve. This may be done by fixing a rope to the lever for actuating the valve from
a distance.
• Striking a valve which is under pressure can cause premature actuation. Never
tamper with the valve when system pressure is near the valve set pressure.
• Before performing any machining on valve parts, consult Baker Hughes or its
authorized representative. Deviation from critical dimensions can adversely affect
valve performance.
