Ultrafilter Ultra Drain UAD S012 Installation And Operating Manual Download Page 2

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Description

ultra.drain UAD

series drains are electronically controlled condensed water drains that

discharges water trapped in the lowest parts of compressed air installation out of the
system. This water is a condensed water vapor that is always present in the atmosphere.
Because of laws of physics, some vapor always condenses during compression of air.

ultra.drain UAD series

drains consists of a water tank, valve assembly and electronics. The

water tank should be the lowest part of the compressed air system where condensed water
collects. In the tank, there is a water level sensor. This way, electronics could detect the tank
is full. Then, it operates the electromagnetic valve to discharge condensed water from
compressed air system. The valve is located in the valve assembly which is constructed so,
that it can be replaced easily. Another part of the valve assembly is a strainer where solid
parts of debris are intercepted. The strainer is located in front of

the ultra.drain UAD

so that

it could be reached easily.

In the condensed water leaving the

ultra.drain UA

D, there are still small particles of rust and

remains of compressor oil. Oil must be removed before the water is drained to sewage
system. To remove oil, water-oil separator

ultra.sep UA

S device could be used.

Because of its construction, the

D could be attached to the compressed air system

horizontally or vertically. Under the pressure vessel or under the refrigerator dryer, the

is fixed horizontally whereas under filters, it is more convenient to fix it vertically.

The  valve  is  operated  by  electronics.  It  opens  the  valve  when  a  button  on  the  electronics
cover  is  pressed  or  when  water  level  in  the  tank  reaches  threshold.  Occasionally,  a  timed
venting mode that combines water level triggered discharging and timed venting is desired.

By pressing the test button, we could see if

the ultra.drain UA

D is operational. Besides, the

test button makes possible to discharge water that has collected in a system during
maintenance manually.

The main mode of operation is a water level triggered discharging. The valve opens when
water level in

the ultra.drain UAD

tank reaches threshold and it closes back before the tank

is empty. This way, only condensed water is discharged and no compressed air is lost.

In  the  timed  venting  mode,  the  valve  is  opened  when  water  level  reaches  threshold,  too.
Besides,  when  the  valve  is  closed  continuously  for  a  predetermined  period,  it  is  opened
shortly  although  there  is  no  water  in  the  tank.  During  working  day,  water  in

D collects

rapidly so that venting period would never expire and there are no air losses. When
production rests,

D is opening its valve. But since these discharges are short and sparse,

air losses are small. The timed venting mode should be used when there is a lot of debris in
condensed water and piping upward the

D could not be inclined enough. Such situation is

quite common under pressure vessels. It may happen that air could not escape from the
tank upward the piping and while there is air around water level sensor, the

D would

never open. In the timed venting mode, the valve is opened after the venting period has
expired and trapped air is allowed to escape through drainage. Now, condensed water can
reach water level sensor and

D is opening its valve until all collected water is discharged.