 |
| Quantity: | |
|---|---|
DF-456-5-SS
HEE
DF-456-5-SS 3 DOG RAISED WATERTIGHT HATCH
MODEL NO. | ΦA | B | WT.(lbs) |
| DF-456-5-SS | 12" | 5" | 55 |
| NO. | Name & Specifications | Qty | Material |
| 1 | COVER | 1 | STAINLESS STEEL |
| 2 | COAMING | 1 | STAINLESS STEEL |
| 3 | GASKET | 1 | NEOPRENE |
| 4 | DOG HANDLE | 3 | STAINLESS STEEL |
| 5 | TUMBLE BOLT | 3 | BRONZE |
The DF-456 SS 3-Dog Raised Watertight Hatch brings premium stainless steel construction to lightweight access solutions, ideal for applications where corrosion resistance and minimal maintenance are priorities. As the marine industry increasingly adopts stainless steel components for saltwater environments, this hatch delivers exceptional durability in a compact design . Measuring 16 × 14 inches and weighing just 85 lbs, the DF-456 SS provides access to auxiliary systems, electrical compartments, and storage lockers while maintaining watertight integrity. Its three-dog latching system offers simplified operation without compromising sealing performance in moderate conditions.
Fabricated entirely from 316 stainless steel, including frame, cover, dogs, and fasteners, the hatch provides superior resistance to pitting and crevice corrosion in saltwater environments . All components undergo passivation treatment to enhance corrosion resistance, with a 2B finish that balances aesthetics with practical durability. This material selection eliminates rust concerns and significantly extends maintenance intervals.
The three strategically positioned stainless steel dogs are arranged in a triangular pattern to distribute sealing pressure effectively across the compact opening . Each dog features a large adjustment knob with positive locking, allowing fine-tuning of compression to accommodate deck movement. The central handle operates all three dogs simultaneously, simplifying operation compared to individual bolt designs.
With a minimum mounting depth requirement of just 4 inches, the DF-456 SS is suitable for installation in thin-deck applications where space is limited . The low-profile raised frame (1.5 inches above deck) provides adequate drainage while maintaining accessibility. The hatch can be mounted in both horizontal and vertical orientations without compromising performance.
316 stainless steel contains molybdenum, which provides superior resistance to chloride-induced corrosion compared to 304 stainless steel, making it ideal for saltwater environments . It offers approximately 50% better corrosion resistance in marine applications, significantly extending service life in harsh conditions.
The triangular dog arrangement creates three primary pressure points that distribute force evenly across the sealing surface in smaller openings . This configuration is particularly effective for compact hatches where the reduced perimeter requires fewer but strategically positioned compression points.
The DF-456 SS maintains watertight performance at hydrostatic pressures up to 2.5 psi, suitable for deck and superstructure applications on vessels operating in coastal and offshore environments up to Sea State 4.
Yes, the latching mechanism is designed to operate reliably in temperatures as low as -25°C (-13°F), with all moving parts utilizing corrosion-resistant bushings that prevent freezing and seizing in cold environments .
Absolutely. The all-stainless steel construction and FDA-approved silicone gaskets (when specified) make the DF-456 SS ideal for vessels transporting food products or potable water, where hygiene and corrosion resistance are critical . The smooth surfaces facilitate easy cleaning and sanitization.
DF-456-5-SS 3 DOG RAISED WATERTIGHT HATCH
MODEL NO. | ΦA | B | WT.(lbs) |
| DF-456-5-SS | 12" | 5" | 55 |
| NO. | Name & Specifications | Qty | Material |
| 1 | COVER | 1 | STAINLESS STEEL |
| 2 | COAMING | 1 | STAINLESS STEEL |
| 3 | GASKET | 1 | NEOPRENE |
| 4 | DOG HANDLE | 3 | STAINLESS STEEL |
| 5 | TUMBLE BOLT | 3 | BRONZE |
The DF-456 SS 3-Dog Raised Watertight Hatch brings premium stainless steel construction to lightweight access solutions, ideal for applications where corrosion resistance and minimal maintenance are priorities. As the marine industry increasingly adopts stainless steel components for saltwater environments, this hatch delivers exceptional durability in a compact design . Measuring 16 × 14 inches and weighing just 85 lbs, the DF-456 SS provides access to auxiliary systems, electrical compartments, and storage lockers while maintaining watertight integrity. Its three-dog latching system offers simplified operation without compromising sealing performance in moderate conditions.
Fabricated entirely from 316 stainless steel, including frame, cover, dogs, and fasteners, the hatch provides superior resistance to pitting and crevice corrosion in saltwater environments . All components undergo passivation treatment to enhance corrosion resistance, with a 2B finish that balances aesthetics with practical durability. This material selection eliminates rust concerns and significantly extends maintenance intervals.
The three strategically positioned stainless steel dogs are arranged in a triangular pattern to distribute sealing pressure effectively across the compact opening . Each dog features a large adjustment knob with positive locking, allowing fine-tuning of compression to accommodate deck movement. The central handle operates all three dogs simultaneously, simplifying operation compared to individual bolt designs.
With a minimum mounting depth requirement of just 4 inches, the DF-456 SS is suitable for installation in thin-deck applications where space is limited . The low-profile raised frame (1.5 inches above deck) provides adequate drainage while maintaining accessibility. The hatch can be mounted in both horizontal and vertical orientations without compromising performance.
316 stainless steel contains molybdenum, which provides superior resistance to chloride-induced corrosion compared to 304 stainless steel, making it ideal for saltwater environments . It offers approximately 50% better corrosion resistance in marine applications, significantly extending service life in harsh conditions.
The triangular dog arrangement creates three primary pressure points that distribute force evenly across the sealing surface in smaller openings . This configuration is particularly effective for compact hatches where the reduced perimeter requires fewer but strategically positioned compression points.
The DF-456 SS maintains watertight performance at hydrostatic pressures up to 2.5 psi, suitable for deck and superstructure applications on vessels operating in coastal and offshore environments up to Sea State 4.
Yes, the latching mechanism is designed to operate reliably in temperatures as low as -25°C (-13°F), with all moving parts utilizing corrosion-resistant bushings that prevent freezing and seizing in cold environments .
Absolutely. The all-stainless steel construction and FDA-approved silicone gaskets (when specified) make the DF-456 SS ideal for vessels transporting food products or potable water, where hygiene and corrosion resistance are critical . The smooth surfaces facilitate easy cleaning and sanitization.
