aquata Dry Diving Suit User Manual - Page 16

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SI TECH Suit Inflation Hose with restricted flow

The SI TECH suit Inflation hoses supplied to us, have a flow restriction orifice to make

it easier for less experienced divers to determine their buoyancy. The flow restriction will

also reduce the loss of pressure to the second stage in case the inflator valve should get

stuck open and it will minimize the harm that a free-flowing hose can cause to people

and equipment.

If connected to a first stage with lower, restricting orifice insert in the hose attachment

nipple can be removed to increase the flow.

SI TECH Inflator Valves – maintenance

Avoid exposing the inflator valve quick connector socket to water and Sand. Use the

protective cap when the hose is not attached. Rinse the dry suit and the inflator valve

with fresh water after every dive. After rinsing, attach the hose and blow the valve clean.

If the pushbutton becomes still, spray some silicone into the quick connector socket and

purge. Slide valve: Gently pry the moving activator from the base to apply silicone.

SI TECH Exhaust valves – basic Information

SI TECH exhaust valves are designed to provide two functions:

- As a safety valve (There is no risk of an internal pressure that is harmful to the diver as

the exhaust valve can't be closed entirely).

- As an adjustable overpressure valve

SI TECH exhaust valves are very sensitive to small variations in difference between inter-

nal and external pressure. The exhaust valve is adjustable between 10-200 mm column of

water (100-2000 Pa/0.0145-0.290 PSI) to provide buoyancy variation with the inherent

gas volume.

Adjusting the volume in the suit is hereby simplified and the drysuit may be used as the

only method of buoyancy control during normal diving conditions (BC emptied of air

during the dive). This will support also support a controlled ascent (approximately15 m/

minute) provided the diver's buoyancy is correctly compensated and the valve is trimmed

properly.

Manual deflation: If the pressure setting of the valve is high (clockwise, press anywhe-

re on the valve lid to override this setting and to deflate air. However, the valve is normally

operated by minor pressure changes.

Factors that need to be considered if the deflation capacity of the exhaust valve seems

inadequate are: the valve location on the suit fit (too much volume above the shoulders

could lead to a pocket of air being trapped above the valve), the permeability of the un-

derwear and insufficient weight compensation.

The clicking sound that can be heard when you turn the valve cover makes it

easy for you to fine tune the valve while diving. The Symbols + and – above the

logo label on the lid indicates the effect – (minus) stands for reduced buoyancy

+ (plus) stands for increased buoyancy.

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