The standard sealing plug serves as the backbone of the Betro Lock series, featuring a T-wrench made from acid-proof steel with a through-hole and a 3/8″R internal thread for mounting a pressure gauge to monitor back pressure—applicable to plugs 1 through 6. Other marine drain plugs in the series can be supplied with this feature upon request. Designed for versatility, it can introduce gas or liquid media inside the plug, making it suitable for applications as an expanding drain plug. The top disk, with a diameter larger than the rubber sleeve, provides impact resistance against pipe ends, making it ideal for marine deck drain covers, scupper plugs, and other drain lock solutions for marine environments.
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Discover real stories and testimonials from customers who trust BETRO-LOCK for their sealing solutions.
I've installed BETRO-LOCK on several ships and have been impressed by their resistance to corrosion and ease of use. Quality at a reasonable price.
We recommend BETRO-LOCK to all our clients for maintenance works. Their ability to adjust and tighten precisely where needed makes them ideal for both old and new vessels.
We used an adapted plug for ROV to seal pipes on the seabed in connection with cleaning. The plug fit perfectly. It stayed longer than planned, but with the quality and strength of these plugs it was no problem.