The expansion dome is shown with a 10″ (254 mm) ullage hatch installed in the hatch cover assembly. This add-on feature has the option to be Stainless Steel or removed entirely from the hatch assembly. Additional add-on features available are a Stainless Steel sight glass with cover, blind flange, or any custom sized ullage.
The dome is also equipped with a Stainless Steel coaming ring which can be left off or custom sized for specific needs.
| MODEL No. | PART No. | Size | A | ØB | C | D | E | F | G | WT. (lbs) |
|---|---|---|---|---|---|---|---|---|---|---|
| DF-450-3026 | 21010 | 30" | 51" | 30" | 26" | 4" | 1/2" | 1/2" | 50" | 750 |
| DF-450-4224 | 21033 | 42" | 63" | 42" | 24" | 4" | 1/2" | 1/2" | 49" | 950 |
| ITEM No. | DESCRIPTION | MATERIAL |
|---|---|---|
| 1 | HATCH COVER ASSEMBLY | STEEL |
| 2 | COAMING ASSEMBLY | STEEL |
| 3 | HATCH GASKET | NEOPRENE |
| 4 | UPPER COAMING RING | STAINLESS |
| 5 | WING NUT | BRASS |
| 6 | DROP BOLT | STAINLESS |
| 7 | HANDWHEEL ASSEMBLY | STEEL |
| 8 | CENTER SHAFT | STAINLESS |
| 9 | HEX NUT | STAINLESS |
| 10 | I-BEAM SWIVEL ARM | STEEL |
| 11 | HINGE PIN ASSEMBLY | STAINLESS |
| 12 | HEX NUT | STAINLESS |
| 13 | KEEPER PIN & CHAIN | GALVANIZED |
| 14 | 10" ULLAGE HATCH ASSEMBLY | STEEL |
| 15 | ULLAGE HATCH DROP BOLT | STAINLESS |
| 16 | ULLAGE HATCH WING NUT | BRASS |
| 17 | ULLAGE HATCH GASKET | NEOPRENE |
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