Marine Quick Acting Watertight Hatch Cover

About product

The marine quick-acting watertight hatch cover is an essential access facility between the ship’s deck and compartments. It is widely used in engine rooms, cargo holds, accommodation spaces, and other critical areas requiring watertight integrity. Its primary function is to ensure rapid watertight isolation under severe sea conditions or unexpected flooding, thereby enhancing the vessel’s overall safety and stability.

  • Robust structure: The cover plate and coaming are typically made of stainless steel or high-strength marine-grade steel, ensuring excellent corrosion resistance and the ability to withstand high external water pressure and impact loads.
  • Multiple types: Available in two configurations—round (Type A) and square (Type B)—which can be selected according to installation location and specific operational requirements.

Product Detail

Marine Deck Watertight Hatch Covers

This watertight hatch cover is designed for high-pressure watertight openings on various types of ships where quick opening and closing are required, such as engine room passages, emergency escape hatches, cargo hold inspection hatches, and other watertight areas that require frequent operation. Its core design focus is to ensure efficient opening and closing while maintaining excellent watertight performance, thereby enhancing the vessel’s safety and reliability under harsh sea conditions.

  • Spring balancing device: Balances the weight of the hatch cover, reducing the operator’s effort and making the opening and closing process easier.
  • Central clamping device: Ensures uniform compression between the cover plate and coaming, improving sealing reliability and safety.
  • Watertight rubber gasket: Made of high-performance rubber with seawater resistance and aging resistance, maintaining elasticity and sealing performance even after long-term use.
  • Handwheel transmission mechanism: Compact in structure and flexible in operation, allowing quick and convenient handling by a single operator.
  • Quick operation: With the assistance of the spring hinge and handwheel mechanism, the operator can complete opening or closing within seconds, ideal for rapid response in emergency situations.
  • Excellent watertightness: The combination of sealing filler and compression device effectively prevents seawater leakage, fully meeting the watertight subdivision requirements of ships.

Type

Name

Size

Water Pressure(MPa)

A

Round Quick Acting Watertight Hatch Cover

Φ600、 Φ650、 Φ700、 Φ750、Φ800

0.3

B

Square Aquick-opening watertight hatch cover

Φ600、 Φ700、Φ800

Marine Quick Acting Watertight Hatch Cover Diagram

 

Ship Quick Acting Watertight Hatch Cover Size

Nominal Size

Cutout in Steel Wall

Coaming Inner Size

Cover Plate Size

Covr pl.t

Coaming

Weight(kg)

Thickness (t1)

Height(H)

600

640

670

720

12

12

200

245

650

690

720

770

266

700

740

770

820

285

750

790

820

870

306

800

840

870

920

328

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Know Who We Are

About our company

Zava Marine Corporation is a leading supplier of marine parts and components. With a strong focus on quality and customer satisfaction, we specialize in providing a comprehensive range of high-quality marine equipment and accessories. Our products include deck equipment, ship accessories, and various other essential components needed for smooth maritime operations.

With a global presence, we serve a diverse customer base, including shipbuilders, shipowners, offshore operators, and marine equipment distributors. We are committed to providing exceptional service and tailored solutions to meet our customers’ unique needs.

FAQ

Zava Marine offers a comprehensive range of certifications for marine parts in accordance with international standards and regulations. These certifications include those provided by renowned marine classification societies such as Lloyd’s Register (LR), Bureau Veritas (BV), China Classification Society (CCS), Registro Italiano Navale (RINA), American Bureau of Shipping (ABS), Nippon Kaiji Kyokai (NK), and Det Norske Veritas – Germanischer Lloyd (DNV-GL). By collaborating with these esteemed societies, Zava Marine ensures that our certified marine parts meet the highest standards of safety, quality, and performance, instilling confidence in our reliability and compliance within the maritime industry.

The warranty provided by Zava Marine covers defects in materials and workmanship for a period of two years from the date of purchase. During this warranty period, if any marine parts purchased from Zava Marine exhibit issues or failures resulting from manufacturing defects or faulty materials, Zava Marine will take responsibility for repair or replacement of the affected parts. 

Zava Marine has recently opened new molds for European and North American clients, utilizing materials such as metal, ABS, PVC, and more. These successful mold opening projects allow us to provide customized marine parts and components that meet the specific requirements of our clients in these regions.

Typically, Zava Marine can ship samples within 7 days once the product drawing has been mutually confirmed by both parties. This efficient process ensures that customers can receive samples promptly, allowing them to assess the quality and suitability of the products.

Zava Marine frequently utilizes a wide range of materials in our projects. These materials include aluminum, stainless steel, carbon steel, copper, plastics, titanium, and PEEK (Polyether Ether Ketone). Each material offers unique properties and characteristics suitable for various marine applications. 

Yes, we provide customization services for marine parts. We understand that every project and application may have unique requirements, and we are committed to delivering tailored solutions. By collaborating closely with our clients, we can adapt our products to specific specifications, ensuring optimal fit, performance, and compatibility. Whether it’s modifying existing designs or creating entirely new parts, our customization services cater to the diverse needs of the maritime industry.

Absolutely! We offer product design and development services to support our clients’ needs. Our experienced team of engineers and designers can collaborate with clients from concept development to final product realization. By leveraging our expertise in marine engineering and design, we can provide valuable insights and innovative solutions. Whether it’s optimizing existing designs or creating entirely new products, we are equipped to assist clients in bringing their ideas to life efficiently and effectively.

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