Jerguson 300L Series Installation, Operation & Maintenance Instruction Manual
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Contents | 
7 of 20Bringing Gage Into Service ALWAYS follow the recommended bolting pattern and torque values whenreassembling a gage after repair (see Maintenance for more details) New gaskets often become permanently compressed after a short time, especially inhot service (see Hot Torque of Glass Gage for more details)Valve Opening Procedure1. Partially open top (gas side) valve 1/4 - 1/2 turn.2. Slowly open bottom (liquid side) valve 1/4 - 1/2 turn.3. The gage level should rise to equalize with the tank level. Wait for the gage level tostop rising before proceeding.4. Fully open the top and bottom valves.Visit http://www.clarkreliance.com/site/jerguson_gageballcheckvalves.asp for a videodemonstration of the proper procedure for commissioning a glass level gage equipped withballcheck valves. (Or visit http://www.youtube.com/ClarkReliance)Caution: Failure to properly open ball check valves could result in the seatingof the ball checks, thereby blocking the flow of fluid into the gage and causing anincorrect gage level reading.Warning: Partially open valves may prevent the ball checks from seatingduring a gage failure, potentially resulting in physical injury to personnel andloss of process fluid. |
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