Marine Watertight Door

Marine Watertight Door

Description

A marine watertight door is a type of door that is used on ships and boats to prevent water from entering the vessel and causing damage. These doors are designed to be watertight and are typically made from materials that can withstand the harsh marine environment, including corrosion, impact, and high water pressure.

Application of Marine Watertight Door

Marine watertight doors are used in a variety of applications on ships and boats, including:

Hull Integrity:The primary purpose of marine watertight doors is to maintain the watertight integrity of the vessel, helping to prevent water from entering the hull and causing damage.

Emergency Situations: In the event of flooding or other emergencies, marine watertight doors can be automatically triggered to close, providing an effective barrier against water intrusion and helping to prevent the vessel from sinking.

Crew Safety: Marine watertight doors help to protect the crew and passengers on board the vessel by preventing water from entering the interior and flooding the living spaces.

Watertight Compartments: Marine watertight doors are used to separate watertight compartments within the vessel, helping to contain water in the event of flooding and reducing the risk of damage to other areas of the ship.

Ballast Tanks: Marine watertight doors are commonly used in ballast tanks to control the flow of water into and out of the tank, allowing the vessel to maintain its stability.

Cargo Compartments: In cargo ships, marine watertight doors are used to separate cargo compartments, helping to prevent water from spreading and causing damage to the cargo.

Engine Rooms: In many vessels, marine watertight doors are used to separate the engine room from the rest of the vessel, helping to prevent water from entering and causing damage to the engines and other critical systems.

Classification of marine watertight doors

There are hinge type and hydraulic sliding type. The hinge type is required to open and close on both sides of the door.

According to the sliding direction, the sliding watertight door has two types: horizontal sliding and vertical sliding; according to the operation mode, there are two kinds of manual operation and power operation. (The time for manual door closing does not exceed 90 seconds, and the time for power door closing does not exceed 60 seconds.)

Hydraulic sliding watertight doors are also commonly applies to watertight gateways of engine room below waterline of ships. There are two commonly used hydraulic sliding watertight doors: one is manual hydraulic sliding watertight door; the other is electric hydraulic control power Sliding watertight door.

Main Products

Marine Watertight Door
A60 Watertight Steel Door	Fast Open/Close Aluminum Watertight Door	Quick Action Pressure Holding Door
Quick Action Watertight Steel Door	Single Clip Watertight Steel Door	Flush Watertight Door
Hydraulic Fireresistant Watertight Door

Configuration selection

Part name	Material	Pros & Cons
Door panel	LF5 Aluminum	Good plasticity, moderate heat treatment strength, good welding performance and gorgeous color on the surface after anodizing treatment. High price
	Q235-A	Good toughness and plasticity, certain elongation, hot workability, fireproof. Welding performance is weak than Q235-B
	Q235-B	Good welding performance, Good low temperature toughness, fireproof.
Door frame	LF5 Aluminum	Good plasticity, moderate heat treatment strength, good welding performance and gorgeous color on the surface after anodizing treatment. High price
	Q235-A	Good toughness and plasticity, certain elongation, hot workability, fireproof. Welding performance is weak than Q235-B
	Q235-B	Good welding performance, Good low temperature toughness, fireproof.
Sealing	Neoprene rubber	Excellent Watertight performance
Locking device	SS304	rustproof, less brittle
	Q235-A	Good toughness and plasticity, certain elongation, hot workability, fireproof. Welding performance is weak than Q235-B
	Q235-B	Good welding performance, Good low temperature toughness
	Copper	High strength, high hardness
Options according to user requirements
Parts	Remark	Features
Handle	Single handle
	Hand Wheel	Quick action
Window	Toughened Glass

Comparison Difference

Other manufacturer’s low quality watertight door	HI-SEA high quality watertight door
1. The door panel is cut corners, and the material is non-marine structural steel, which cannot meet the special requirements of ships 2. The surface treatment of the steel plate is not in place and there are defects such as pores, which affect the strength and service life of the door. 3. Improper handling of the welding part of the marine door, the structure is not firm, which affects the safety and life of the door. 4. The handle parts are made of carbon steel, which has poor anti-corrosion performance and is easy to rust, which affects the normal opening and closing of the door.	1. The door plate steel meets the hull structural steel standard, with high strength and water pressure resistance. 2. After the production is completed, 0.025MPa water pressure test is carried out to check whether the watertightness meets the standard. 3. The surface is painted to prevent rust and corrosion effectively. 4. The hardware parts such as handles are made of high-quality stainless steel 316, which has good anti-corrosion performance and long service life. 5. High-quality neoprene seal, good water tightness, good toughness, not easy to deform, and long service life.

Drawings

Single handle type

Wheel Type

nominal size L*B*R100	cutout in steel wall L1*B1*R150	exterior size L2*B2*R200	leaf thickness t
1000*600	1100*700	1200*800	8
1200*600	1300*700	1400*800
1400*600	1500*700	1600*800
1400*700	1500*800	1600*900
1500*600	1600*700	1700*800
1500*700	1600*800	1700*900
1600*600	1700*700	1800*800
1600*700	1700*800	1800*900

Product Showing

A60 Watertight Steel Door

Fast Open Close Aluminum Watertight Door

Quick Action Watertight Steel Door

Hydraulic Fireresistant Watertight Door