Rotating Oiltight Hatch Cover — Smart Sealing for Marine Operations

On modern vessels, safety, efficiency, and intelligent design go hand in hand—especially when it comes to vital access points like tank covers. The Rotating Oiltight Hatch Cover, developed and manufactured by Shengda Marine Equipment, is a robust, compact, and reliable solution that ensures airtight, oiltight sealing for a wide range of marine oil and fuel tanks.

Space-Saving Design for Maximum Deck Utility

Unlike traditional lift-type hatches, which require vertical clearance and wide open space to operate, this hatch adopts a rotary opening mechanism, allowing the cover to swing open horizontally around a fixed center. This feature significantly reduces the required operational space on deck, making it ideal for vessels with limited layout flexibility. Whether installed on the top of oil tanks, ballast tanks, or fuel storage compartments, it offers quick, easy, and safe access for inspection and maintenance with minimal interference to other onboard equipment.

Reliable Oiltight & Watertight Performance

At the heart of this product is its high-performance sealing system. The hatch features a precision-machined steel seat combined with a high-elasticity oil-resistant rubber gasket, forming a secure seal that prevents oil leakage and water ingress even under challenging marine conditions. The rotating mechanism is fitted with heavy-duty locking handles to ensure that the cover remains firmly sealed during rough seas or high-pressure operations.

Built to Withstand Harsh Marine Conditions

The hatch is fabricated using marine-grade carbon steel or optional 304/316 stainless steel, providing strong resistance to corrosion, weathering, and mechanical stress. The surface can be coated with epoxy zinc-rich primers and marine-standard protective paints, or polished for stainless steel models to enhance appearance and durability. The entire structure is engineered to withstand long-term exposure to oil, saltwater, UV radiation, and temperature fluctuations.

Certified and Customizable for Global Marine Use

All Shengda hatch covers are built in accordance with international classification standards, including CCS, ABS, BV, DNVGL, LR, RINA, and more. We offer standard sizes for fast delivery, and customization services based on customer drawings or dimensional requirements. From diameter, pressure resistance, and material to handle style, coating type, and mounting flange, every detail can be tailored to your project needs.

Each hatch undergoes full quality control inspection including dimensional testing, non-destructive weld checks, pressure testing, and functionality verification before shipment. We also support full documentation, installation guidance, and after-sales service for overseas orders.

Your Trusted Partner in Marine Equipment

With years of experience serving shipbuilders, shipowners, and marine suppliers across Southeast Asia, the Middle East, and Europe, Shengda Marine Equipment is proud to offer trusted solutions that keep your vessels safe, efficient, and seaworthy. Whether you are outfitting a new build or upgrading an existing deck system, our Rotating Oiltight Hatch Cover brings together superior engineering, precision manufacturing, and international compliance in one durable, compact unit.

Let Shengda be your long-term marine equipment partner—Engineered for the Sea. Built for Trust.