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1.5-inch airline valve
1.5 inch Airline Valve: Fitted in the spill box on the top side of the tank. Used for venting the tank at loading / discharge, enclosed vapour return and air pressure supply. Can be screwed or flanged or a 2 inch flanged butterfly.
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Flanged Relief Valve
Prevents excess pressure in the tank. Usually supplied as pressure only, but is also available as a pressure / vacuum combination. The regulations require a setting at 10% above the MAWP (maximum allowed working pressure).
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3-inch blacko full bore ball valve
Located in the top rear compartment and used for loading and discharge. Top loading / discharge is commonly used to avoid unnecessary maintenance and cleaning of the syphon pipe.
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3-inch footvalve
Used for loading and discharge it is the first closure required by regulation. To ensure the tank remains sealed in the event of an accident, this part is designed to fail in such a way as to leave the internal part of the valve closed and attached to the tank body.
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3-inch flanged butterfly valve
An internal spring valve used for bottom valve (second closure). To ensure the tank remains sealed in the event of an accident, this part is designed to fail in such a way as to leave the internal part of the valve closed and attached to the tank body. It can be combined with a cap (third closure for the regulations) to prevent drips.
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500mm Ultra low profile manlid assembly
Usually fitted in the top centre compartment, within the spill box. Typically fitted with 6 - 8 swing bolts, it has the benefit of being of easy access for loading ad cleaning.
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Bolted manlid
Usually fitted in the top centre compartment within the spill box, it is flanged and bolted and typically fitted with 18-20 bolts. This type of manlid is ideal for high pressures and its added security is perfect for dedicated cargo.
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