Field Service Operations

Breather Valves shall be:

1. Inspected for any obvious signs of physical damage and sniffed with a 4 gas monitor for any signs of vapor leakage before opening the valve.

2. Once opened, all internal parts shall be cleaned.

3. If needed, inserts, cover gaskets, pallets, and retainer rings shall be replaced.

4. If there is an obvious sign of damage to the seat ring, lapping can be preformed. If damage is to severe, replacement of seat ring shall be preformed and noted in the customer’s equipment doc.

5. Pressure and vacuum settings shall be verified by the settings tag on the valve. If no tag is present, it shall be documented on the customer’s equipment doc at the time of the functions test.

6. If adjustments of the weight settings on the pallet assembly are to be done, the customer must request it in writing.

7. Once valve is closed, a final inspection and cleaning of the valve body shall be done. Valve shall be sniffed with a 4 gas monitor to confirm that there is no vapor leakage. If leakage is detected, the field technician shall perform the above steps over again to stop the vapor leakage. If leakage is still present, the field technician shall note the equipment doc of the vapor leakage and at what parts per million (ppm) it is leaking.

Emergency Manways shall be:

1. Inspected for any obvious signs of physical damage and sniffed with a 4 gas monitor for any signs of vapor leakage before opening the lid.

2. Once opened, all internal parts shall be cleaned.

3. If needed, pads and diaphragms shall be replaced.

4. The base shall be cleaned and inspected for pitting and scratches. If damage is severe, replacement shall be done and documented.

5. Pressure settings shall be verified by the settings tag. If no tag is present, it shall be documented on the customer’s equipment doc.

6. If an adjustment of the weight settings on the lid of the manway is necessary, customer shall provide in writing what weight setting they prefer.

Emergency Manways Continue:

7. Once manway is closed, a final inspection and cleaning of the lid and body shall be done. Manway shall be sniffed with a 4 gas monitor to confirm that there is no vapor leakage. If leakage is detected, the field technician shall perform the above steps over again to stop the vapor leakage. If leakage is still present, the field technician shall note the equipment doc of the vapor leakage and at what parts per million (ppm) it is leaking.

Thief Hatch shall be:

1. Inspected for any obvious signs of physical damage and sniffed with a 4 gas monitor for any signs of vapor leakage before opening the lid.

2. Once opened, all internal parts shall be cleaned.

3. Replacement of gaskets shall be done, if needed.

4. The seat shall be cleaned and inspected for pitting and scratches. If damage is severe, the hatch will have to be removed and serviced at our shop, with the customer’s approval and a replacement shall be furnished.

5. Once hatch is closed, a final inspection and cleaning of the body shall be done. Hatch shall be sniffed with a 4 gas monitor to confirm that there is no vapor leakage. If leakage is detected, the field technician shall perform the above steps over again to stop the vapor leakage. If leakage is still present, the field technician shall note the equipment doc of the vapor leakage and at what parts per million (ppm) it is leaking.

Flame Arresters shall be:

1. Inspected for any obvious signs of physical damage and sniffed with a 4 gas monitor for any signs of vapor leakage before opening the front cover.

2. Once opened, the “bank assembly” shall be inspected for corrosion and cleaned thoroughly to provide maximum air flow.

3. Gaskets shall be replaced, if necessary.

4. Once flame arrester is closed, a final inspection and cleaning of the body shall be done. Flame arrester shall be sniffed with a 4 gas monitor to confirm that there is no vapor leakage. If vapor leakage is detected, the field technician shall perform the above steps over again to stop the leakage. If leakage is still present, the field technician shall note the equipment doc of the vapor leakage and at what parts per million (ppm) it is leaking.

Vacuum and Make – Up Regulators shall be:

1. Inspected for any obvious signs of physical damage and liquid leakage. The unit shall then be sniffed with a 4 gas monitor for any signs of vapor leakage before disassembled.

2. Once disassembled, the following shall be inspected and replaced as needed:

   1. The diaphragm in the Diaphragm Housing Assembly shall be inspected for cracks and tears. If any cracks or tears are present, diaphragm shall be replaced.

   2. The o-ring and bearing in the Yoke Assembly shall be inspected. The o-ring shall be inspected for cracks. The bearing shall be inspected for damage. If the o-ring or bearing is damaged, it shall be replaced.

   3. The Seat Body and Plug shall be inspected for any pitting damage. Lapping shall be performed if possible. If damage is severe, the entire regulator will have to be brought back to our shop and repaired. Customer approval is needed prior to bringing regulator back to our shop.

      1. Set points and calibration shall be done according to the settings tag on the regulator. If no tag is present, it shall be documented on the equipment doc.

      2. Once regulator is reassembled, a final inspection and cleaning of the unit shall be done. Regulator shall be visual inspected for water leakage and shall be sniffed with a 4 gas monitor to confirm that there is no vapor leakage. If vapor leakage is detected, the field technician shall perform the above steps over again to stop the leakage. If vapor leakage is still present, the field technician shall note the equipment doc of the leakage and at what parts per million (ppm) it is leaking.

Gaugeheads and Sheave Elbows shall be:

1. Inspected for any obvious signs of physical damage and be sniffed with a 4 gas monitor for any signs of vapor leakage before opening.

2. Gaugehead shall be opened and cleaned. Gasket shall be replaced if need after cleaning of Gaugehead is complete.

3. Sheave Elbow shall be open and cleaned. Gasket shall be replaced if need after inspection of the gauge tape is complete.

4. Gauge tape shall be checked for proper position on the wheel and that it is not ripped or caught on anything.

5. Once everything is closed, a final inspection and cleaning of the unit shall be done. Everything shall be sniffed with a 4 gas monitor to confirm that there is no vapor leakage. If vapor leakage is detected, the field technician shall perform the above steps over again to stop the leakage. If vapor leakage is still present, the field technician shall note the equipment doc of the leakage and at what parts per million (ppm) it is leaking.