Multi-Handwheel Domed Round Manway

A round manway with a domed solid cover, hinge, handle and perimeter swing-bolt handwheels. The exact drawing lists ten sizes from 150 to 600 mm, including 430 mm, with 4–8 handwheels depending on the selected row.

Frame and cover options	304 / 316L stainless steel
Tank connection	Welding
Cover assembly	Domed solid round cover with hinge and handle
Closure	Perimeter swing bolts; 4–8 handwheels by size
Drawing sizes	150, 200, 250, 300, 350, 400, 430, 450, 500, 600 mm

Size

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Domed cover with separate closure hardware

The solid round cover has a domed profile and a separate handle. Upper and lower hinge components are identified in the parts list. Swing bolts and handwheels are arranged around the perimeter, giving this manway a different closure layout from a single-arm or central-handwheel cover.

Ten size rows and changing handwheel counts

The drawing lists 150, 200, 250, 300, 350, 400, 430, 450, 500 and 600 mm sizes. Handwheel quantities change by row: four for 150–250, five for 300, six for 350–500 and eight for 600. Compare the exact row rather than using one pictured count for every size.

Materials, seal and dimensional details

The frame and cover have 304 or 316L options, and the illustrated gasket is silicone. The dimension schedule records OD separately from the size name, with H of 100 mm and t of 3 mm. Cover thickness t1 changes from 2.5 to 3 mm across the listed rows.

Layout and replacement planning

The tank interface is a welding connection. Leave access around the perimeter fasteners and allow room for the cover and handle when arranging adjacent equipment. Routine checks should include visible closure components and the gasket seat. Match replacement parts to the selected size and illustrated assembly, including the required handwheel quantity.