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In the maritime industry’s ongoing pursuit of operational efficiency and safety, the DF-615 Raised Quick-Acting Watertight Hatch emerges as a critical innovation for emergency access and routine operations.
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|---|---|
DF-615-2424
DF-615 RAISED WATERTIGHT QUICK ACTING HATCH
MODEL NO. | A | B | C | D | WT.(lbs) |
| DF-615-24×24 | 24" | 33 1/16" | 28" | 24" | 500 |
| DF-615-30×30 | 30" | 39 1/16" | 34" | 24" | 700 |
| DF-615-36×36 | 36" | 45 1/16" | 40" | 24" | 900 |
| NO. | Name & Specifications | Qty | Material |
| 1 | HATCH COVER ASSEMBLY | 1 | STEEL |
| 2 | COAMING ASSEMBLY | 1 | STEEL |
| 3 | HATCH GASKET | 1 | NEOPRENE |
| 4 | CENTER SHAFT | 1 | STAINLESS |
| 5 | ROTATING BLOCK ASSEMBLY | 1 | STAINLESS |
| 6 | DOG ARM | 4 | STAINLESS |
| 7 | SWIVEL GUIDE | 4 | BRASS |
Leakage test: Pressure 0.04MPa
Other optional extras include: hot dipped galvanized, stainless steel construction, and customing heights
As vessel operators face increasing pressure to meet stringent safety regulations while optimizing response times, this hatch combines rapid deployment capabilities with uncompromising watertight performance . Designed with a raised profile that enhances sealing pressure, the DF-615 measures 24 × 18 inches in opening size and weighs 145 lbs, making it suitable for medium to large access points requiring frequent operation. Its quick-acting mechanism addresses the industry’s need for equipment that can be operated efficiently even in high-stress emergency situations.
The defining feature of the DF-615 is its spring-assisted quick-release system that enables full opening in under 3 seconds, a critical advantage during emergency scenarios . The ergonomic handle with textured grip allows operation with gloved hands, while the integrated safety lock prevents accidental activation. This mechanism reduces the physical effort required compared to traditional bolted hatches, minimizing operator fatigue during repeated use.
Featuring a dual-compression EPDM rubber gasket that maintains sealing integrity across a temperature range of -40°C to 80°C, the hatch exceeds industry standards for water resistance . The raised frame creates a mechanical barrier against water ingress, while the precision-machined sealing surface ensures uniform compression when closed. Testing confirms the hatch maintains watertight performance under hydrostatic pressure up to 6 psi, surpassing standard marine requirements.
Constructed from hot-dip galvanized carbon steel with a marine-grade coating, the DF-615 withstands 1,000 hours of salt spray testing without significant corrosion . All moving components utilize stainless steel pins and bushings to prevent seizing, even after prolonged exposure to harsh marine environments. The hinge assembly is reinforced to support full opening without sagging, even after 10,000+ operation cycles.
The DF-615 uses a spring-loaded cam system that converts rotational handle movement into linear compression, eliminating the need to individually tighten multiple bolts. This design reduces opening time from minutes to seconds while maintaining equivalent sealing pressure, critical for emergency access scenarios.
The DF-615 meets IMO Resolution A.754(18) requirements for watertight closures and is certified by major classification societies including DNV, ABS, and Lloyd’s Register . Its rapid operation capability supports SOLAS requirements for emergency egress and equipment access.
The moving components should be lubricated monthly with marine-grade grease, and the gasket inspected quarterly for signs of wear. A full operational test is recommended every six months to ensure the quick-release function operates within the 3-second specification.
Yes, the DF-615 features bidirectional operation with handles on both sides of the hatch, allowing access from either deck or compartment side . This feature enhances safety by providing alternative access routes during emergencies.
The DF-615 is ideal for rescue vessels, offshore supply ships, and naval craft where rapid access can impact mission success or safety outcomes . Its robust construction also makes it suitable for commercial vessels requiring frequent access to below-deck compartments.
DF-615 RAISED WATERTIGHT QUICK ACTING HATCH
MODEL NO. | A | B | C | D | WT.(lbs) |
| DF-615-24×24 | 24" | 33 1/16" | 28" | 24" | 500 |
| DF-615-30×30 | 30" | 39 1/16" | 34" | 24" | 700 |
| DF-615-36×36 | 36" | 45 1/16" | 40" | 24" | 900 |
| NO. | Name & Specifications | Qty | Material |
| 1 | HATCH COVER ASSEMBLY | 1 | STEEL |
| 2 | COAMING ASSEMBLY | 1 | STEEL |
| 3 | HATCH GASKET | 1 | NEOPRENE |
| 4 | CENTER SHAFT | 1 | STAINLESS |
| 5 | ROTATING BLOCK ASSEMBLY | 1 | STAINLESS |
| 6 | DOG ARM | 4 | STAINLESS |
| 7 | SWIVEL GUIDE | 4 | BRASS |
Leakage test: Pressure 0.04MPa
Other optional extras include: hot dipped galvanized, stainless steel construction, and customing heights
As vessel operators face increasing pressure to meet stringent safety regulations while optimizing response times, this hatch combines rapid deployment capabilities with uncompromising watertight performance . Designed with a raised profile that enhances sealing pressure, the DF-615 measures 24 × 18 inches in opening size and weighs 145 lbs, making it suitable for medium to large access points requiring frequent operation. Its quick-acting mechanism addresses the industry’s need for equipment that can be operated efficiently even in high-stress emergency situations.
The defining feature of the DF-615 is its spring-assisted quick-release system that enables full opening in under 3 seconds, a critical advantage during emergency scenarios . The ergonomic handle with textured grip allows operation with gloved hands, while the integrated safety lock prevents accidental activation. This mechanism reduces the physical effort required compared to traditional bolted hatches, minimizing operator fatigue during repeated use.
Featuring a dual-compression EPDM rubber gasket that maintains sealing integrity across a temperature range of -40°C to 80°C, the hatch exceeds industry standards for water resistance . The raised frame creates a mechanical barrier against water ingress, while the precision-machined sealing surface ensures uniform compression when closed. Testing confirms the hatch maintains watertight performance under hydrostatic pressure up to 6 psi, surpassing standard marine requirements.
Constructed from hot-dip galvanized carbon steel with a marine-grade coating, the DF-615 withstands 1,000 hours of salt spray testing without significant corrosion . All moving components utilize stainless steel pins and bushings to prevent seizing, even after prolonged exposure to harsh marine environments. The hinge assembly is reinforced to support full opening without sagging, even after 10,000+ operation cycles.
The DF-615 uses a spring-loaded cam system that converts rotational handle movement into linear compression, eliminating the need to individually tighten multiple bolts. This design reduces opening time from minutes to seconds while maintaining equivalent sealing pressure, critical for emergency access scenarios.
The DF-615 meets IMO Resolution A.754(18) requirements for watertight closures and is certified by major classification societies including DNV, ABS, and Lloyd’s Register . Its rapid operation capability supports SOLAS requirements for emergency egress and equipment access.
The moving components should be lubricated monthly with marine-grade grease, and the gasket inspected quarterly for signs of wear. A full operational test is recommended every six months to ensure the quick-release function operates within the 3-second specification.
Yes, the DF-615 features bidirectional operation with handles on both sides of the hatch, allowing access from either deck or compartment side . This feature enhances safety by providing alternative access routes during emergencies.
The DF-615 is ideal for rescue vessels, offshore supply ships, and naval craft where rapid access can impact mission success or safety outcomes . Its robust construction also makes it suitable for commercial vessels requiring frequent access to below-deck compartments.
