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Cylinder Accessories

DIN Valve Dust Plug

The dust plug for DIN valves has the following features:

• Made from high-tech plastic that resists salt and sediment buildup, corrosion and damage from normal use.
• Works with either 200-bar or 300-bar DIN valve fittings.
• Includes swivel attachment lanyard and o-ring.
• Vented, so that the presence of high-pressure gas does not trap the plug, making it difficult to remove.

S/S DIN Sealing Plug

A 316 grade Stainless Steel DIN Sealing Plug provides a true O-ring seal in both 200-Bar and 300-Bar valves; it's primary purpose is to prevent gas loss from leaks. The DIN plug is oxygen clean and includes a Viton O-ring. 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.

The moment a S/S plug is removed from the valve it seems to grow legs and walk away, so screw it into the first stage DIN cap from your regulator and secure it with the lanyard. 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, close the valve and break the seal by loosening the plug with a wrench.

Leaks from the valve outlet can be prevented by meticulously double checking the valve is closed whenever you move a cylinder. Leaks from the neck or burst disk assembly can only be prevented by regular maintenance of your valve. When your cylinder and valve receive their annual visual inspection make sure the O-ring groove in the neck is cleaned and a new clean and unlubricated neck O-ring installed. Dive Rite Express recommends the burst disk replaced whenever the cylinder is hydro tested (i.e., every five years) and annually if the cylinder is known to have been overfilled.

DIN-to-Yoke Deluxe Fill Adapter

If you have filled cylinders with 200 and 300 Bar DIN valves then you have probably used the really annoying one-piece DIN-to-Yoke fill blocks. The DIN-to-Yoke Deluxe Fill Adapter is a much better solution because it uses the same system for connecting to the cylinder valve as scuba regulators. The deluxe fill adapter has a hand wheel for easy attachment and removal, no wrench needed. Even better, because you can orient the yoke fitting a full 360°, the adapter adjusts to accommodate the orientation of the fill whip, not the other way around. That means no more fighting with the whip to attach it to the cylinder. Recently improved to fit both 200 Bar and 300 Bar DIN valve outlets. Note, this adapter is suitable for filling only.

Cylinder Pressure Check Gauge

Having to hunt for an SPG-equipped regulator when trying to determine whether a set of tanks is sufficiently full can be a hassle. That's why it helps to have a simple, easy-to-use check gauge handy. Unfortunately, most check gauges are equipped with standard yoke connectors--which means that, when you want to check tank pressure on a set of DIN-equipped cylinders, you have to take time to hunt for an additional fitting. Fortunately, the Pressure Check Gauge comes standard with a DIN connector. It you have to check the occasional standard tank, just spin on a DIN-to-Yoke Adapter.

The Check Gauge is made from high-quality machined brass, and provides readings in both imperial and metric measurements. As an added bonus, you don't have to fiddle with easily-lost bleed screws. Just twist the bleed on the body of the check gauge, and the unit drains within a fraction of a second.