OMEGA AIR AOK 50B Manuale utente

Installation and operating

manual

Please read the following instructions carefully before installing the product. Trouble free and

safe operating of the product can only be guaranteed if recommendations and conditions stated

in this manual are respected.

3401960_17112017

AOK 50B / AOK 50SS

Description

The AOK 50 was designed to eliminate condensate, and other non-corrosive liquids from high-

pressure compressed air systems.

Condensate forms when compressed air is cooled. It forms in the pipeline and collects in the lowest

parts of the compressed air system (pressure vessels or pipeline). To remove the condensate from

the system, it is necessary to install a drain valve.

AOK 50 is mechanical device used to automatically drain the condensate from the system. It needs to

be installed in locations where condensate accumulates. When a sufficient quantity of condensate

accumulates in the drain tank, the condensate raises up a floater, which activates the servo valve.

The servo valve opens the outlet until the condensate level falls. Operation of the AOK 50 can be

checked at any time with a test button on the front. When the test button is rotated, it activates the

servo valve.

AOK 50 can be used in different applications such as pressure vessels, dryers, filters, drains, etc. The

robust housing of condensate drain is made of aluminium/stainless steel which protect from external

influences.

Technical data

*AOK 50SS

CALCULATION OF CAPACITY

For rough calculation of discharge capacity at certain pressure use following equation:

   Example: if operating at 35barg;     l/h

MATERIALS

AOK 50B

AOK 50SS

Housing material

Anodized aluminum

Stainless steel 1.4404

Screws, Other components

Stainless steel 1.4404, A4

Floater

Polyamide (PA6)

Sealing

NBR, FPM

Operation pressure range

8 –50 bar / 116 –725 psi

Minimum recommended operating

pressure

12 bar(g)

145 psi

Drain capacity (7 bar / 101 psi)

167 l/h

0,1 scfm

Drain capacity (16 bar / 235 psi)

252 l/h

0,15 scfm

Gas consumption for one fluid outlet at

50 bar(g)

0,8 Ndm3

Operating temperature range

1,5 –65°C

35 - 149 °F

Operating media

Condensate (air, water, oil); Non-aggressive

Inlet connection

G ½” (NPT on request)

Outlet connection

G ½” (NPT on request)

Reservoir volume

0,45 l

Mass

2,8 kg / 7,2 kg*

Dimensions A x B x C [mm]

155 x 100 x 100

Valve type

Servo, Normally open

Discharge orifice cross section

1,8mm

Connecting dimensions

Components

Part

Screws M8

Washers M8

Housing cover

O-ring seal

Spring + needle

Outlet nozzle

Servo valve assembly

Screws M4

Housing

Plug

Test Button

O-ring seal Di 2,5

Circlip

Spring Di 9,5

Float assembly

Nipple assembly (option)

Servo valve assembly (7)

Part

O-ring seal Di 2,5

Pipe 25

Elbow

Suction pipe

Pipe 44

O-ring seal Di 28

U-ring 10

Servo valve housing

Float holder

Nozzle servo valve

Spring of piston

Flat seal

Backing piston

Difference spring

U-ring 25

Piston

Cover of valve

U-ring 14

Float assembly

Part

Float

Nozzle seal

Screw 3x8

Lever

Safety instructions

Installation and maintenance work may only be carried out when the device is not

under pressure. To depressurize the device, close the ball valve and rotate the test

button on device until the pressure in it drops.

Installation and maintenance work may only be carried out by trained and

experienced personnel.

Installation and maintenance workers must use proper safety / protection

equipment (e.g. protection gloves, protection goggles, …)

Installation and maintenance work may only be carried out when electrical power

supply is disconnected.

Do not exceed maximal operating pressure or operating temperature range (see data

label).

Do not use the device in hazardous areas with potentially explosive atmospheres.

Use original spare parts only.

Use the device for the appropriate purpose only.

Appropriate use

AOK 50 condensate drain is intended exclusively for the following purpose:

Draining condensate from compressed air system (air compressors, air

receivers/pressure vessels, air dryers and air filters).

Any other form of use or one going beyond this shall be considered as inappropriate. We shall have

no liability whatsoever for any damage incurred as a result.

Operation

AOK 50 works with compressed air, which is in the system from which we wish to drain the

condensate. The AOK 50 minimum operating pressure is 8 bar (116 psi). When there is no pressure in

the system the valve is normally open. The valve opens automatically if the pressure drops to below

1 bar (14 psi). The valve can also open at higher pressure. The opening of the valve depends on many

factors, such as wear and the speed of the pressure drop.

The condensate enters the AOK 50 through the INLET connector, which is located on the upper side

of the housing. Condensate flows into a reservoir. When the level of the condensate rises the float is

lifted. When the condensate level is high enough, the float unblocks a nozzle and seal thus

pressurizing the interior of the servo valve. The pressure pushes a piston, which opens and closes the

OUTLET connector. Through this OUTLET, the condensate is discharged from the reservoir. When the

level of the condensate drops the float drops whit it and closes the nozzle. Air enters the servo valve

through a side hole and then the piston returns to its start position and thus closes the drain OUTLET.

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