Linde Polymer Tec Co.,Ltd. is one of the most experienced manufacturers and suppliers of diving signal light o-ring seals in China, also supports customized service. Please feel free to buy high quality diving signal light o-ring seals for sale here from our factory.
Products Description
Diving signal light O-ring seals are annular elastomeric sealing elements designed for underwater lighting equipment to ensure a long-term waterproof seal in high-pressure, humid, and corrosive environments.
Advantages
Excellent sealing: It can fit the gap between components tightly through elastic deformation and withstand high-pressure underwater (up to 300 meters deep).
Strong corrosion resistance: It uses materials such as fluoro rubber and silicone to resist corrosion from seawater, salt spray, ultraviolet ray,s and chemicals.
Wide temperature adaptability: It maintains elasticity in the range of -50°C to 200°C, suitable for polar to tropical waters.
Long-life design: Anti-aging and wear-resistant, reducing the cost of frequent replacement.
Easy installation: Standardized size design, compatible with most diving equipment interfaces, and supports customized specifications.
Sealing principle
Diving signal light O-ring seals are used to seal key parts such as lamp body interfaces, battery compartments, buttons, etc. to prevent water from infiltrating and causing short circuits or failures.
1. Static seal: After installation, it compresses naturally and relies on the rebound force to fit the surface (such as the interface between the lamp housing and the mirror cover).
2. Dynamic seal: When the component moves slightly (such as knob adjustment), the seal integrity can still be maintained.
Material selection
Provide a variety of materials according to different application scenarios:
Fluororubber (FKM): resistant to high temperatures (-20°C~200°C), oil, and chemical solvents, suitable for industrial diving equipment.
Silicone (VMQ): soft and resistant to low temperatures (-50°C~180°C), non-toxic and environmentally friendly, suitable for civilian diving equipment.
Nitrile rubber (NBR): cost-effective, good oil resistant, suitable for shallow water or short-term use scenarios.
EPDM rubber: resistant to ozone and ultraviolet rays, but more used in land equipment, less underwater applications.
| VMQ 70 | Property | Unit | Test Method | Test Parameter | Value |
| Hardness | IRHD | ASTM D 1415 | 70 ±5 | ||
| Tensile Strength | MPa | ASTM D 412 | 7.95 | ||
| Ultimate Elongation | % | ASTM D 412 | 178 | ||
| Specific Gravity | g/cm3 | ASTM D 297 | 1.40 | ||
| Compression Set | % | ASTM D 395 B | 22h / 175°C | 15 | |
| Low temp. resistance | °C | ASTM D 1329 | TR10 | -42 | |
| Low temp. resistance | °C | ASTM D 2137 | brittleness no cracks after 3 min. at |
-54 |
Why choose our O-rings?
Passed ISO 9001 quality certification, 100% air tightness, and durability testing.
Provide material reports and pressure/temperature resistance performance data to ensure transparent selection.
Quickly respond to customized needs and provide samples within 48 hours to help products quickly go to market.
***Let professional sealing technology protect your deep-sea exploration!
If you need technical support or customized solutions, please contact our engineering team.
Our Certificates
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