Everyone knows exactly what a helium release valve is, right? That weird, circular fitting along the side of some dive watch cases, usually at nine o’clock, sometimes ten o’clock. Best wishes watches for diving ask them to. That’s the way you know you have an authentic, gnarly tool in your wrist. Right?
Apparently , helium release valves, or helium valves, may really be considered a liability inside a dive watch, as opposed to a benefit. To understand why that could be, let’s check out the He valve (He’s the element symbol for helium – sometimes marked on crown-style valves such as the Omega Seamaster Planet Sea). What exactly is it? Exactly what does it do? How do you use it, and why might a diver require it?
First, you should know that the helium molecule is very small – one of the tiniest of molecules. Underneath the right conditions (like ruthless), helium can sneak beyond the seals of the replica watch where water molecules or even the molecules of other gases that comprise our air can’t.
The Helium Release Valve around the Replica Rolex Sea-Dweller
So helium can take shape in a wrist watch under exterior pressure, until that exterior pressure is released. That’s once the built-up helium, that has now pressurized the timepiece situation, might blow the very from the watch. Difficult. That sort of factor will require your skills out.
To avoid this kind of occurrence, a helium release valve instantly depressurizes the timepiece if this returns to some ocean level pressure atmosphere. It’s a 1-way valve therefore it only lets pressure from the watch. It’s made to never let water – using its bigger molecule – to pass through in to the watch. (If helium will get in with that route, it’s OK – the valve’s whole purpose would be to let helium out. Out, as they say.)
Hold on! Why the heck would helium enter into the timepiece to begin with.
Well, to be able to counter the results of nitrogen in mid-air breathed by workers (likely divers) temporarily residing in deep water habitats, that nitrogen is basically substituted with helium. And also the local pressure during these habitats is usually greater then ocean level atmospheric pressure.
So that’s how helium will get into divers watches. It’s driven in with that elevated pressure while divers are surviving in their living quarters at depth. So when they finally return to the top and decompress after days or days at depth (and elevated pressure), their watches are prone to explosively pop their crystals in the event that helium build-up isn’t correctly released.
But with that explanation, you can observe the valve does not have anything related to actual diving. Rather, it is due to residing in a pressurized atmosphere if not diving.