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START-UP AND OPERATION OF MECHANICALLY SEALED EQUIPMENT

START-UP AND OPERATION OF MECHANICALLY SEALED EQUIPMENT. 1:13. START UP & OPERATION. SEALS ARE ESPECIALLY VULNERABLE DURING THIS TIME, SO IT IS IMPORTANT TO GIVE ATTENTION TO THE FOLLOWING INFORMATION. SINGLE INSIDE SEAL. Start-Up Procedures Gradually Heat up or Chill Down if Applicable

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START-UP AND OPERATION OF MECHANICALLY SEALED EQUIPMENT

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  1. START-UP AND OPERATION OF MECHANICALLY SEALED EQUIPMENT 1:13

  2. START UP & OPERATION SEALS ARE ESPECIALLY VULNERABLE DURING THIS TIME, SO IT IS IMPORTANT TO GIVE ATTENTION TO THE FOLLOWING INFORMATION...

  3. SINGLE INSIDE SEAL • Start-Up Procedures • Gradually Heat up or Chill Down if Applicable • Heating / Cooling on • Steam / Gas Purge on • Verify that Environmental Control Piping is Properly Connected

  4. SINGLE INSIDE SEAL Start-Up Procedures • Suction Valve Open • Discharge Valve Closed to One-Quarter open • Start Pump and Gradually Open Discharge Valve to Proper Flow

  5. SINGLE INSIDE SEAL Operating Procedures • After Start-Up, Check for: Leakage, Squealing, Vibration or Cavitation • Never Adjust Flow with the Suction Valve. It must ALWAYS BE WIDE OPEN • If the Pump is Running Dry, the Seal is Not Being Lubricated. Severe damage to the seal and/or pump may occur. Turn the Pump Off Immediately

  6. DUAL PRESSURIZED SEAL Start-Up Procedures • Gradually Heat up or Chill Down if Applicable • Heating / Cooling on • Steam / Gas Purge on • Verify that Environmental Control Piping is Properly Connected

  7. DUAL PRESSURIZED SEAL Start-Up Procedures • Ensure Adequate Liquid Level in Buffer Supply Tank or • Ensure that Barrier System is Operational • Double Check Barrier Piping to the Seal Inlet & Outlet to Ensure that They are Correct for Pump Rotation

  8. DUAL PRESSURIZED SEAL Start-Up Procedures • Apply and Check for Adequate Barrier System flow through the Seal • Ensure that Barrier Pressure is 20 to 25 psi. Greater than Anticipated Stuffing Box Pressure (Suction + %(Differential))

  9. DUAL PRESSURIZED SEAL Start-Up Procedures • Suction Valve Open • Discharge Valve Closed to One-Quarter Open • Start Pump • Gradually Open Discharge Valve to Full Open

  10. DUAL PRESSURIZED SEAL Operating Procedures • After Start-Up, Check for: Leakage, Squealing, Vibration or Cavitation • Never Adjust Flow with the Suction Valve. It must ALWAYS BE WIDE OPEN • If the Pump is Running Dry, damage may occur to the pump.Turn the Pump Off

  11. DUAL PRESSURIZED SEAL Operating Procedures • Never Remove Barrier Supply from the Seal While the Pump has Process Liquid Applied • If Seal Begins to Leak Barrier Fluid to Atmosphere, Plan Maintenance as Soon as Possible. Delaying Removal may Damage the Seal Beyond Economical Repairability

  12. Reminders • 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

  13. Reminders • 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

  14. Reminders • 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

  15. ENDSTART-UP AND OPERATION OF MECHANICALLY SEALED EQUIPMENT

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