Boat Steel Hatch Cover for Marine

Boat steel hatch cover for marine

Item	Marine Steel Hatch Cover
Hatch Type	Watertight Hatch/ Weathertight Hatch / Gastight Hatch / Oiltight Hatch Cover
Material	Steel or Stainless Steel or Aluminium
Opening Type	rotary quick open / handwheel quick open/none quick open
Fireproof Class	A60/A15/A0/None
Surface Finish	baking finish for steel
Thickness	minimum 4 mm , the thickness of the hatch depend on the size of hatch,  large size of hatch accordingly thicken
Size	as the drawing or client requirements

According to opening modes of hatches, the hatch cover hydraulic system series can be divided into translation and folding mode.
Translation hatch cover through lift-up cylinder to lift the panel of hatch cover in position of horizontal slideway, then use gear, rack or chain, sprocket to translate the cover to the other side, to open the cover.
Folding hatch cover is through hydraulic cylinder to lift two blocks of folding covers, and stand them to the other side of opening cover, to open the cover.
Control mode is engine local control of manual direction valve, and power supply is to use two sets motor pump units as spear parts for each other.

For simple structure, convenient operation, cheap cost, safety and reliable performance, it is widely used for large bulk vessel, containers and etc.

Type of hatch cover	Translation (rack and pinion drive, sprocket chain drive) Folding (Single page, double pages, three pages, four pages) Rolling Hanging
System pressure	16MPa, 20MPa,25MPa,28MPa
System flow	28L/min,32L/min,40L/min,45L/min
Nos of hatch cover	1,2,3,4,5
Emergency pump station	yes or no