Lewmar Size 70 Medium Profile Hatch Flange Base
Lewmar Size 70 Medium Profile Hatch Flange Base — Product description
Discover the robustness of the Lewmar Size 70 Medium Profile Hatch Flange Base, engineered for demanding marine conditions on larger offshore yachts. This hatch stands out with its thicker acrylic construction and reinforced frame sections, delivering superior strength without sacrificing the sleek, contemporary aesthetics that define Lewmar's design philosophy. Whether you're fitting out a foredeck or needing a reliable access point that withstands heavy seas, this model combines practical functionality with enduring performance.
Key Features That Set It Apart
- Convenient Outside Handles: Effortlessly open the hatch from the deck, even in choppy waters, as long as it's not secured—perfect for quick ventilation or emergency access.
- Adjustable Friction Levers: Secure the lid at any angle up to 95 degrees, providing flexible positioning for airflow control during long passages or while anchored.
- Anodized Aluminum Frame: Offers exceptional corrosion resistance against saltwater spray and harsh UV exposure, ensuring longevity in coastal or bluewater environments.
- Curved Upper Frame Profile: Enhances structural integrity while contributing to a streamlined, modern look that complements high-end yacht styling.
- Comprehensive Spare Parts Support: Lewmar's commitment to reliability means replacements for seals, hinges, and more are readily accessible, minimizing downtime.
Why This Hatch Excels in Real-World Boating
The Medium Profile design bridges the gap between lightweight convenience and heavy-duty resilience. Its deeper frame and robust acrylic handle the flex and torque of larger vessels better than standard low-profile options, reducing the risk of cracking under load. The innovative sealing system simplifies acrylic panel swaps—often a weekend project rather than a yard overhaul—keeping your boat watertight with minimal hassle. Boaters praise its smooth operation, which stays reliable after years of exposure to salt, sun, and storms.
Ideal for foredeck installations, it promotes excellent natural ventilation to combat cabin stuffiness on extended cruises. The friction mechanism shines in variable winds, holding firm without slamming shut or fluttering uncontrollably. For yacht owners prioritizing safety and style, this hatch integrates seamlessly into custom layouts, enhancing both form and function.
Practical Tips for Optimal Performance
Installation Insights
Mounting requires precise alignment for the flange base to ensure a drip-free seal. Use marine-grade sealants around the perimeter and torque fasteners evenly to avoid distortion. Pair it with Lewmar's compatible vents for customized airflow, transforming your deck into a more livable space.
Maintenance Made Simple
Rinse with fresh water after every outing to flush salt buildup. Lubricate friction levers and hinges annually with a silicone-based product to maintain silky-smooth action. Inspect seals quarterly; the user-replaceable design means you can refresh them proactively, extending the hatch's service life well beyond a decade.
In the world of marine hardware, where every component battles the elements, the Lewmar Size 70 Medium Profile Hatch Flange Base proves its worth through thoughtful engineering and proven field performance. Elevate your yacht's deck setup with a hatch built to endure.
Frequently Asked Questions
What makes the Medium Profile Hatch stronger than Low Profile models?
It features thicker acrylic panes and deeper frame sections, providing enhanced rigidity and impact resistance ideal for larger yachts facing rough conditions.
Can the hatch be opened from outside when not locked?
Yes, the outside handles allow deck-side operation for convenience, ventilation, or quick access, as long as the lock is disengaged.
How does the friction lever system work?
The levers grip the hatch at any position up to 95 degrees, offering precise control over opening angles for optimal airflow in varying weather.
Is the frame suitable for saltwater environments?
Absolutely, the anodized aluminum construction resists corrosion from salt spray, UV rays, and moisture, making it perfect for offshore use.
What's special about the sealing system?
Lewmar's unique seals allow straightforward acrylic replacement without full disassembly, helping maintain a watertight fit over time.
Where is this hatch typically installed on a yacht?
It's commonly used as a foredeck hatch on larger offshore yachts, providing sturdy access and ventilation in high-exposure areas.
Are spare parts easy to source?
Yes, Lewmar offers a full range of spares like handles, seals, and levers, supporting long-term ownership and repairs.
Lewmar Size 70 Medium Profile Hatch Flange Base
Model: 39970020- Outside handles allow the hatch to be opened from on deck if it is not locked
- Friction levers hold the lid open in any position up to 95°
- Anodised aluminium frame for corrosion resistance
- Curved upper frame profile for strength as well as modern styling
- Full range of spare parts available
Ideal as a foredeck hatch on larger offshore yachts, the Medium Profile has thicker acrylic and deeper frame sections for greater strength and durability. It features Lewmar’s unique sealing system, allowing for easy acrylic replacement. All while retaining the smooth, modern lines of the Low Profile Hatch.
SKU: NVN-1002627
MPN: 39970020
UPC: 743683116186
Technical specifications
| Brand | Lewmar |
| Model | Lewmar Size 70 Medium Profile Hatch Flange Base |
| SKU / MFR# | 1002627 |
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