F0002-AA007595-AAR-09-SMP · MCU14/0102.05

             Figure 2. Actual coalescer unit (Left), the unit with its lifting chains (Centre) and the unit’s guide rail system,
                                                    locating and locking system (Right)

            The coalescer is then lowered in the normal way, being guided at the correct angle into the conical base unit
            which finally locates the coalescer unit into its final position. Extension guide rails can be incorporated into the
            SPEL extension shafts to suit (preferably when ordered with the separator). However, when the separator is full
            of water, debris or sludge accumulated over a period could prevent the coalescer unit from re-seating correctly
            after servicing. The coalescer unit lifting / locating / locking system ensures the coalescer unit is seated correctly
            and can be locked into position to prevent tampering. The stainless steel lifting handle can be extended to suit
            deep tank inverts and provide easy access for lifting manually or with a tripod and hoist utilising the lifting hook.

            2.1.2      SPEL Auto Closure Device (ACD)
            The Automatic Closure Device (ACD) is found in the first chamber of a Puraceptor. The purpose of the ACD is to
            close the separator off automatically when the maximum storage capacity of light liquid is attained. The ACD is
            to ensure that in the event of a major spillage, pollutants do not pass into the drainage system; it should not be
            regarded as a substitute for an automatic alarm / monitoring system. The ACD is a specifically designed copper
            float that is semi-buoyant and floats at the oil/water interface. As the oil depth increases in the Puraceptor
            (during a spill), the ACD float remains at the oil/water interface and subsequently floats lower, closer to the
            outlet point. The ACD seal hangs 400mm below the ACD float such that it will fully close the outlet port 400mm
            before the oil/water interface reaches the outlet port. This minimises the potential risk of any oil spill being
            entrained from the Puraceptor.

            Operation and Maintenance
            If the tank should fill with light liquid, the ACD which is calibrated for a specific gravity of 0.85 will automatically
            sink and isolate the SPEL Puraceptor. Normally routine maintenance would include removing light liquid
            intercepted within the Puraceptor. If a SPEL automatic alarm/monitoring system is incorporated, it will
            automatically indicate when the Puraceptor should be emptied. Only in an emergency will the Puraceptor fill to
            its maximum and operate the ACD. In such an event the Puraceptor should be completely vacuumed out and
            the ACD lifted out. To re-insert the ACD, partially fill the Puraceptor with clean water (if necessary) to ensure the
            ACD when re-inserted remains floating and then re-insert the ACD. Finally check the ACD is floating and the




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