Bottle valve comparisonThe WON
billet alloy bottle valve is
unique and we are the only company in the world to supply a bottle valve
to such a high specification as standard equipment;
1) The valve body is CNC machined from aircraft quality billet alloy, for maximum strength and minimum weight. Most other companies use plated cast brass, although NX have recently followed our lead and started offering an alloy bodied valve but as far as I'm aware it's NOT supplied as standard equipements.
2) The WON valve stem is machined from
13mm stainless steel for maximum strength and is coated with PTFE for minimum wear. Other companies use a much smaller o/d brass stem, some as small as 6mm,
without any low friction coating.
3) The valve core is machined from brass with a
PTFE coating for a smooth, light operating action and minimum wear, (other companies use a brass core, without any low friction coating).
4) The valve seat uses the same
unique advanced material as used in our well proven Pulsoids.
5) The flow path through our valve is
unique, being radial with a tangential discharge outlet, which produces a much higher flow rate than the designs used by other valves, (other companies use valves that have a linear flow path with a 90 degree discharge outlet which is not as efficient). Our valve has
the highest flow rate of any standard equipment valve on the market. 6) The
unique design of the operating hand wheel is such that
it overlaps the body, so that in the event of an impact
the valve knob will NOT break off, (unlike other valves which will break rendering them useless).
7) The hand wheel is a press fit to a spline on the stainless steel main stem, so that in the event of an excessive turning force being applied, the main stem can't be sheared (as with other valves, which renders them useless), rather the knob splines will strip and then the knob can be replaced.
8) Our valve is fitted with a
unique 'gas' venting system controlled by our
unique Safe Pressure Relief Valve - SPRV - while other companies use a 'liquid' venting system that is blocked by a rupture disc.
For full details of the benefits of the SPRV over a rupture disc please read;
http://www.noswizard.com/bboard/viewtopic.php?t=1649) The valve has an optional extra 'gas' port that can be used for any of the following;
i) nitrogen boosting
ii) direct fitting of a bottle pressure gauge
iii) direct fitting of a pressure switch
iv) direct fitting of a pressure transducer
Most other makes of valve do not have this feature.
10) Last but not least on our list of advantages over other valves is that they are available in a selection of colours as well as polished, so they look better than any other valve as well as performing better.