CB/T 3842-2000 type B quick acting small hatch cover is square type watertight hatches. It is designed for hydraulic pressure 0.2MPa. Higher pressure can be designed case by case subject to class approval. The standard height of the coaming is 200mm. Higher height can be produced with thicker and stronger plate. It can be open from both side with quick action handwheel. Spring hinge makes operation of the hatches easily.
Main Technical Specification:
Material: Mild Steel, Stainless Steel,
Packing Materials: Neoprene, NBR ,Hi NBR,
Test: Hydraulic Pressure Test
Dimension: As Standard or Customized, As client’s drawing,
Application Type: Water-tight, Gas Tight,
Open Type: Hand Wheel Quick Operate
Closing Type: Hinged with Spring
Surface treatment: sandblasting to S2.5 + one layer of epoxy shop primer, Polished, Galvanized, customized surface treatment available.
Classification Certificates: CCS, NK, BV, ABS, DNV-GL, LR, KR, IRS, RS, RINA.