B E L L - M A R S H I P P I N G L T D

Exsif fleet specs
	T11 24,000L	T11 31,000L Swap
	T11 26,000L	T11 35,000L Swap
	T14 14,300L	T11 7,500L Mini Tank
	T50 22,500L	Refrigirated TC
	T22 22,500L	Chassis
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Tank Guide
	LOADING	DISCHARGE
	Procedure Before Loading or Discharge	Procedure Before Discharge
	Loading Through Manhole	Gravity Discharge
	Loading Through Top Outlet	Pumped Discharge
	Loading Through the Bottom Outlet	Pressure Discharge
	After Loading	Procedure After Discharge

Procedure before Loading or Discharge

1.	Ensure that the vehicle is securely braked, chocking wheels if necessary.
2.	Contact the local supervisor to ensure that the cargo is of correct specification and quantity.
3.	Where safety or fire fighting equipment is required, it should be positioned upwind of the tank.
4.	Make earth connection from tank earthing point to local earth positions. (See below)
5.	Check that the hose connections have the same thread or fitting as the tank connections. Ensure that the correct joint rings and gaskets are used and that they are compatible with the cargo.
6.	Check that appropriate facilities exist for the draining of hoses and valves.

Additional checks for Loading only:
7.	Check if a Cleanliness Certificate or Gas Free Certificate is required (depending on the cargo).

8.	Open manlid and examine tank/Outlet valves for cleanliness. (See above)
9.	Check relief valves are in sound condition
Note: For cargoes being carried under an inert gas blanket, see section on gas blanketing.

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Loading Through Manhole

1.	Refer to section “Before Loading”
2.	Check that all tank bottom valves are closed.
3.	Open manlid and insert hose into tank.
4.	Secure hose to stop possible whiplash
5.	Load tank to required level. Check constantly for leaks in hoses and connections. (See below)

6.	Drain hose and remove from tank.
7.	Close manlid and tighten down. (See below)

8.	Refer to section “After Loading”

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Loading Through Top Outlet

1.	Refer to section “Before Loading”
2.	Check that all bottom valves are closed.
3.	Remove top outlet blank flange. Bolt hose coupling to top outlet flange. (See below).

4.	Connect vapour return line and open valve to vent tank.
5.	Load tank to required level. Check constantly for leaks in hoses and connections.
6.	Drain hose, close top outlet valve and remove hose from tank. Replace top outlet blank flange.
7.	Close airline valve, disconnect vapour return line and replace blanking cap.
8.	Refer to section "After Loading"

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Loading Through The Bottom Outlet

1.	Refer to section “Before Loading”
2.	Remove bottom outlet blank flange or cap, connect hose ensuring connection is correct and tight. Open valves. (See below)

3.	Connect vapour return line and open valve to vent tank. (See below)

4.	Open valves. Load tank to required level. Check constantly for leaks in hoses and connections.

5.	Tanks with single bottom outlet valve: Close valve and then drain hose. Disconnect hose and replace blanking cap. Tanks with foot valve and external valve: Close foot valve. Drain hose. Close external valve. Disconnect hose and replace blanking cap or flange. (This sequence is important to ensure that no product remains between foot valve and external valve).
6.	Close airline valve and disconnect vapour return line and replace blanking cap.
7.	Refer to section “After Loading”

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After Loading

1.	Clean and stow the supply and return hoses, replacing caps and blanks.
2.	Ensure that all tank fittings are correctly closed and capped and any cargo spillage removed.
3.	Remove earth connection.
4.	Replace safety equipment.

5.	If required, seal tank and fittings in accordance with Customs requirements. (See below)

6.	Check that the tank container is properly labelled for the product loaded, and that any redundant labels have been removed.

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Procedure Before Discharge

1.	Ensure that the vehicle is securely braked, chocking wheels if necessary.
2.	Contact the local supervisor to ensure that there is adequate space in the receiving tank. If product is already present in the receiving tank check that it is identical to the cargo being discharged.
3.	Where safety or fire fighting equipment is required, position it upwind of the tank.
4.	Make earth connection from tank earthing point to local earthing positions. (See below)

5.	Check that the hose connections have the same thread or fitting as the tank connections. Ensure that the correct joint rings and gaskets are used, and that they are compatible with the cargo.

6.	Check appropriate facilities exist for the draining of hoses and valves.
7.	Check the setting of the valves to the receiving tanks.
8.	For discharge by pumping or by gravity ensure that the danger of implosion is avoided by opening the manlid (or airline valve to vapour return line if closed system is being used). Ensure that venting is not prevented by any solidified cargo in the airline or relief valves.
9.	For discharge with top pressure ensure a gauge is visible and in a serviceable condition to monitor the pressure applied.
10.	It will assist discharge through top or bottom outlet if the tank is sited to drain towards the rear.
11.	Notify the station supervisor when the tank is ready for discharge

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Gravity Discharge

1.	Refer to section ‘Before discharge’.
2.	Remove bottom outlet blanking cap or flange and connect hose ensuring that the connection is correct and tight.
3.	Open manlid or airline to vent the tank or vent back to storage tank.
4.	Open outlet valves and commence discharge. Check constantly for leaks in hoses and connections. (See below)

5.	Drain Tank.

6.	Tanks with single bottom outlet valve:
	-	Close valve and drain hose.
	-	Disconnect hose and replace blanking cap or flange.
	Tanks with foot valve and external valve:
	-	Close foot valve.
	-	Drain hose.
	-	Close external valve
	-	Disconnect hose and replace blanking cap or flange. (This sequence is to ensure that no product remains between foot valve and external valve). (See below)

7.	Close manlid and tight en down or close airline connection and replace blanking cap. (See below).

8.	Refer to section ‘After discharge’.

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Pumped Discharge

1.	Refer to section ‘Before Discharge’
2.	Top outlet discharge: Remove top outlet blank flange, bolt hose couplings to top outlet flange. (See below)
	Bottom outlet discharge: Remove bottom outlet blanking cap or flange, connect hose ensuring that hose connection is correct and tight. (See below)
3.	Open manlid or airline connection to vent tank.
4.	Open tank outlet valve or valves and commence discharge. Check constantly for leaks in hoses or connections. (See below).
5.	Drain tank.

6.	When discharge is complete, Top outlet discharge: Drain hose, close top outlet valve and remove hose from tank. Replace top outlet blank flange. Tanks with single bottom outlet valve:
	-	Close valve and then drain hose.
	-	Disconnect hose and replace blanking flap or flange.
	Tanks with foot valve and external valve:
	-	Close foot valve.
	-	Drain hose.
	-	Close external valve.
	-	Disconnect hose and replace blanking cap or flange. (This sequence is important to ensure that no product remains between foot valve and external valve). (See below)

7.	Close manlid and tighten down, or close airline connection, replacing blanking cap.
8.	Refer to selection ‘After discharge’

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Pressure Discharge

1.	Refer to section 'Before Discharge'.
2.	Top outlet discharge Remove top outlet blank flange, bolt hose couplings to top outlet flange and open top outlet valve.
Note: The syphon tube extends to approximately 12mm from tank bottom at outlet end of tank, so that the minimum of cargo remains after discharge via top outlet. (See below).
	Bottom outlet discharge: Remove bottom outlet blanking cap or flange, connect hose, ensuring that hose connection is correct and tight, open foot valve (if fitted) and open outlet valve. (See below).

3.	Connect airline and open airline valve (if fitted).
4.	Open tank outlet vlave or valves and commence discharge. Check constantly for leaks in hoses or connection.

5.	Apply pressure until discharge is completed, (not exceeding tank and hose working pressure). Check constantly for leaks in hoses and connections. Pressure will drop when discharge is complete.
6.	When discharge is complete, and hose line is empty, close airline valve, disconnect airline and replace blanking cap.
Note: It is important to relieve any remaining pressure in the tank through the hose when noxious and hazardous vapours are present.
7.	Bottom outlet discharge: Tanks with single bottom outlet valve:
	-	Close valve and then drain hose.
	-	Disconnect line and replace blanking cap or flange.
	Tanks with foot valve and external valve:
	-	Close foot valve. Drain hose.
	-	Close external valve.
	-	Disconnect hose and replace blanking cap or flange.

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Procedure After Discharge

1.	Check the tank is empty.
2.	Stow hoses, replacing caps and blanks.
3.	Ensure that all tank fitings are correctly closed and capped and any cargo spillage removed.
4.	Remove earth connection
5.	Replace safety equipment
6.	In the case of hazardous cargo, the tank must be regarded as dangerous until clean and gas free.

7.	Where cargo residue may spoil or may become corrosive to the tank with atmospheric air humidity, the nitrogen used to discharge the tank should remain in the tank until it is cleaned or reloaded with cargo
8.	To prevent hardening of solvent soluble resins and paints approximately 15 litres of solvent should be added to the tank and the tank should be maintained under pressure awaiting cleaning.
9.	To prevent drying out of latex and emulsions, the tank should be maintained under air pressure awaiting cleaning.

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