Shop by Category

banner banner

Sonar HP Sealing 300 Bar DIN Plug with Pressure Relief Button

WMD-UA-17 | CY10780 11/22


The Sonar HP Sealing 300 Bar DIN Plug provides a true high pressure O-ring seal in both 200 bar and 300 bar valves. It's primary purpose is to prevent gas loss from leaks. The typical use is to protect an expensive (or just plain important) gas fill from accidental loss while the cylinder is being handled or transported.

It's made from chrome plated marine brass, exactly the same material as your valve and thus is NOT subject to galvanic corrosion and galling. We have seen that happen with other plugs made of a dissimilar metal. All that's needed is a little saltwater moisture and then the plug seizes in the valve.

If you discover you are unable to remove the plug by hand because it's being held in place by the pressure of the gas trying to escape, you can just use the push button to release the pressure.

Sonar HP Sealing 300 Bar DIN Plug with Relief Button Features

  • Eliminates accidental gas leaks from your valves
  • A true HP O-ring seal for 200 bar and 300 bar valves
  • Perfect to protect expensive Trimix fills
  • Travel and move filled tanks with confidence
  • In case the valve is accidentally turned on, the push button vent allows trapped gas to escape for easy plug removal

Warning: We do NOT recommend the use of any type of HP sealing DIN Plug with oxygen, as impact or the friction of loosening the plug against high pressure oxygen could cause ignition, fire, and explosion leading to injury or death.

(11/22 HS)

Connect with us on Facebook - scubadoctor  View our YouTube Channel - ScubaDoctorRye  Follow us on Instagram  View us on Pinterest - scubadoctor  Follow us on Twitter - @scubadoctor
The Scuba Doctor Australia
Boon Wurrung Country
1/49 Peninsula Ave
Rye Victoria 3941, Australia
Commonwealth Coat of Arms
We accept Purchase Orders from Government Departments & Schools
P +613 5985 1700
Opening Hours
Shop by Category
Copyright © 2005-2024 by The Scuba Doctor Australia, ABN 88 116 755 170. All rights reserved. tel. +61 3 5985 1700 :: email. :: Web site by it'sTechnical 2022