Operating Principle - MS Schippers Aqualevel Mode D'emploi

General Description
MS Aqualevel
The MS Aqua Level water valves are ideal for maintaining a specific water level in drinking bowls, water containers and
other vessels.
The Aqua Level is suitable for:
Weaners, finishers, sows in gestation units, sows in insemination and control units, and gestating sows in loose-housing
systems.
Benefits
Improved water consumption by newly weaned pigs facilitated by the constant water level. The resulting positive effects on
early daily growth rates are well documented.
Improved water consumption and milk production of nursing sows thanks to the constant water level. Documented water
savings of 50% in relation to conventional drinking bowls for weaners and finishers. Water wastage is also considerably
reduced in farrowing units.
Like float valves, Aqua Level valves maintain a constant water level. However, Aqua Level valves provide a higher degree of
hygiene and allow easier cleaning as no mechanical parts are in contact with the drinking water but are located in the valve
housing more than 1 metre above the water level.

Operating principle

The MS Aqua Level functions by means of a vacuum which causes a rubber diaphragm to shut off the water supply. The
vacuum is formed as water absorbs the air contained in the valve chamber and removes it via the water flow.
As long as the water level is lower than the end of the pipe, air will be simultaneously sucked into the valve to equalise the
vacuum. As soon as the water level prevents air intake, suction on the rubber diaphragm closes the nozzle through which
water is injected into the valve housing. When the water level again falls below the end of the pipe the vacuum is equalised
and the valve opens.
The valve has a built-in-shutt-off mechanism so that individual valves can be closed manually.
The water valve is designed to be fitted direct to a 3/4'' horizontal pipe. It can also be connected via
a ½'' external thread on the rear of the valve housing.
Preconditions for reliable operation
The MS Aqua Level water valves are extremely reliable. However, a necessary precondition for reliable operation is that all
water installations are precisely dimensioned and adjusted.
The valve opens automatically when pressure drops inside the valve housing. Under correct conditions, this occurs when the
water level falls below the end of the pipe, allowing air to be sucked into the valve through the pipe, thus equalising the
pressure.
If water is supplied at insufficient pressure, a vacuum will not be created and the valve will not close. Similarly, the valve
may also open unintentionally if the vacuum is equalised by leaks in the valve housing.
The following instructions should be followed when dimensioning an Aqua Level installation.
The same calculation formula is used to dimension main pipes and service pipes. It is assumed that not all Aqua Level valves
will be activated simultaneously.
Two-step dimensioning:
1. Measure the dynamic working pressure and perform the following calculation.
Working pressure is defined as the water pressure measured at the point on the main pipe at which the service
pipe to the valves is connected.
Measurement must be made while the water pipe is in use.
Main pipe/service pipe output (L/min)= ___2x no. of valves____
MS Aqualevel
Water working pressure
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