START-UP AND START-UP AND OPERATION OF OPERATION OF MECHANICALLY MECHANICALLY

SEALED SEALED EQUIPMENTEQUIPMENT

1:131:13

START UP & OPERATIONSTART UP & OPERATION

SEALS ARE ESPECIALLY SEALS ARE ESPECIALLY VULNERABLEVULNERABLE

DURING THIS TIME, SO IT IS IMPORTANTDURING THIS TIME, SO IT IS IMPORTANT

TO GIVE ATTENTION TO THE FOLLOWINGTO GIVE ATTENTION TO THE FOLLOWING

INFORMATION...INFORMATION...

SINGLE INSIDE SEALSINGLE INSIDE SEAL

Start-Up ProceduresStart-Up Procedures• Gradually Heat up or Chill Down if Gradually Heat up or Chill Down if

ApplicableApplicable

• Heating / Cooling onHeating / Cooling on

• Steam / Gas Purge onSteam / Gas Purge on

• Verify that Environmental Control Verify that Environmental Control Piping is Properly ConnectedPiping is Properly Connected

Start-Up ProceduresStart-Up Procedures Suction Valve OpenSuction Valve Open Discharge Valve Closed to One-Quarter Discharge Valve Closed to One-Quarter

openopen Start Pump and Gradually Open Start Pump and Gradually Open

Discharge Valve to Proper FlowDischarge Valve to Proper Flow

SINGLE INSIDE SEALSINGLE INSIDE SEAL

Operating ProceduresOperating Procedures

• After Start-Up, Check for: Leakage, After Start-Up, Check for: Leakage, Squealing, Vibration or CavitationSquealing, Vibration or Cavitation

• NeverNever Adjust Flow with the Suction Adjust Flow with the Suction Valve. It must Valve. It must ALWAYS BE WIDE OPENALWAYS BE WIDE OPEN

• If the Pump is Running Dry, the Seal is If the Pump is Running Dry, the Seal is Not Being Lubricated.Not Being Lubricated. Severe damage to Severe damage to the seal and/or pump may occur. Turn the seal and/or pump may occur. Turn the Pump the Pump OffOff Immediately Immediately

SINGLE INSIDE SEALSINGLE INSIDE SEAL

DUAL PRESSURIZED DUAL PRESSURIZED SEALSEAL

Start-Up ProceduresStart-Up Procedures• Gradually Heat up or Chill Down if Gradually Heat up or Chill Down if

ApplicableApplicable

• Heating / Cooling onHeating / Cooling on

• Steam / Gas Purge onSteam / Gas Purge on

• Verify that Environmental Control Piping Verify that Environmental Control Piping is Properly Connectedis Properly Connected

DUAL PRESSURIZED DUAL PRESSURIZED SEALSEAL

Start-Up ProceduresStart-Up Procedures• Ensure Adequate Liquid Level in Buffer Ensure Adequate Liquid Level in Buffer

Supply Tank Supply Tank oror

• Ensure that Barrier System is OperationalEnsure that Barrier System is Operational

• Double Check Barrier Piping to the Double Check Barrier Piping to the Seal Inlet & Outlet to Ensure that They are Inlet & Outlet to Ensure that They are Correct for Pump RotationCorrect for Pump Rotation

DUAL PRESSURIZED DUAL PRESSURIZED SEALSEAL

Start-Up ProceduresStart-Up Procedures Apply and Check for Adequate Barrier Apply and Check for Adequate Barrier

System flow through the SealSystem flow through the Seal Ensure that Barrier Pressure is 20 to 25 Ensure that Barrier Pressure is 20 to 25

psi. Greater than Anticipated Stuffing psi. Greater than Anticipated Stuffing Box Pressure (Suction + %(Differential))Box Pressure (Suction + %(Differential))

DUAL PRESSURIZED DUAL PRESSURIZED SEALSEAL

Start-Up ProceduresStart-Up Procedures Suction Valve OpenSuction Valve Open Discharge Valve Closed to One-Quarter Discharge Valve Closed to One-Quarter

OpenOpen Start PumpStart Pump Gradually Open Discharge Valve to Full Gradually Open Discharge Valve to Full

OpenOpen

Operating ProceduresOperating Procedures

• After Start-Up, Check for: Leakage, After Start-Up, Check for: Leakage, Squealing, Vibration or CavitationSquealing, Vibration or Cavitation

• NeverNever Adjust Flow with the Suction Adjust Flow with the Suction Valve. It must Valve. It must ALWAYS BE WIDE OPENALWAYS BE WIDE OPEN

• If the Pump is Running Dry, damage may If the Pump is Running Dry, damage may occur to the pump.occur to the pump. Turn the Pump OffTurn the Pump Off

DUAL PRESSURIZED DUAL PRESSURIZED SEALSEAL

Operating ProceduresOperating Procedures

• NeverNever Remove Barrier Supply from the Remove Barrier Supply from the Seal While the Pump has Process Liquid Seal While the Pump has Process Liquid AppliedApplied

• If Seal Begins to Leak Barrier Fluid to If Seal Begins to Leak Barrier Fluid to Atmosphere, Atmosphere, Plan Maintenance as Soon Plan Maintenance as Soon as Possible. as Possible. Delaying Removal may Delaying Removal may Damage the Seal Beyond Economical Damage the Seal Beyond Economical RepairabilityRepairability

DUAL PRESSURIZED DUAL PRESSURIZED SEALSEAL

RemindersReminders The Pumped Liquid Lubricates Single and Non-

Pressurized Inner Seals only! Dry running destroys them !

Suction Valve Always Wide Open Before Pump Start-Up

Heat or Cool Gradually Never Throttle a Pump with the Suction Valve Start a Centrifugal Pump with the Discharge

Valve 25 Percent Open Where Possible Always Start a Positive Displacement Pump

with the Suction and Discharge Valves Wide Open

RemindersReminders Report Cavitation, Vibration, Leakage,

Squealing Do Not Run a Pump at Shut-Off Barrier Liquids for Pressurized Seals Must Be

Pressurized Before the Pump Valves are Opened

Barrier Fluid Circulation Systems Must Be Operational and Applied Before the Pump Valves are Opened

Inlet & Outlet Must be Piped in Accordance with Specified Rotation of The Pump

RemindersReminders

Use Tubing Where Possible Do Not Tie Inlet & Outlet Lines Together Do Not Remove Pressure Source to Add Barrier

Fluid to a Sealing System that is in Operation Seal & Piping System Must Not Trap Air

Anywhere All Supply Lines Must Slope up to Reservoir /

Tank Flush Out All System Components after a Seal

Failure

START-UP AND START-UP AND OPERATION OF OPERATION OF

MECHANICALLY SEALED

EQUIPMENTEQUIPMENT