TAVLIT ADIR User manual

1
ADIR Semi –Automatic Screen filters 2”-3” TS
Installation and maintenance instructions
Assembly
•Connect the 1” flush valve to the bottom of the filter cup,
(no need to use Teflon, valve is self-seal).
Installation
•Filter can be installed in vertical position or at 90° to the pipe, (Flush valve pointing
down or to the side).
•Ensure proper flow direction as clearly marked on the filter.
•Make sure both flush valves are closed.
•It is recommended to install a shut off valve before the filter for maintenance.
•Filter is ready for first operation.
First Operation
•Open the water source gradually and check for leaks.
•Perform 2-3 flushing cycles as outlined below.
•Filter is ready for use.
Flushing the filter
•Filter must be flushed when the head loss across the filter reaches 0.5 - 0.7 Bar.
oPressure is measured by inserting a pressure gauge with needle into the pressure ports.
oIt is recommended to install a pressure indicator on the filter. The indicator enables
quick and easy way to show the user that the filter is clogged and needs flushing.
▪When pressure loss across the filter element reaches the preset value,
usually 0.5 bar (7 psi), the red button pops up and the user can see from a
distance that the filter needs flushing.
After flushing the button descends into the indicator body.
oThe indicator is connected directly to the pressure testing ports located on the filter
body.
oWhen a pressure indicator is installed there is no need to perform manual pressure
tests.
•Open the flush valve gradually.
•Turn the scanning handle counterclockwise –it will move upwards, until it stops.
•Turn the handle clockwise –it will move downwards, until it stops.
•Close the flush valve gradually and check pressure.
oIn case a pressure indicator is installed the red pin should descend.
•In case the filter is still dirty (head loss is still high or the indicator pin did not descend, perform
another flushing cycle.
•If the filter is still dirty perform a manual flushing:
Water flow to the field is uninterrupted during flushing.

2
Flushing the filter
•Close the inlet valve to the filter.
•Open flush valve gradually and drain filter.
•Open the filter locking nut and remove the cup.
•Remove the pin connecting the handle and remove handle
•Screw the scanner bar out of the filter.
•Remove the screen out of the filter and flush thoroughly (do not use a wire brush).
•After cleaning the screen assemble the filter.
oOpen the inlet valve gradually.
oFilter is ready.
Warning
Never open the filter cup under pressure.
Technical specifications:
Available sizes: 2”; 3”.
Filtration area:950 cm^2
Max working pressure: 10 Bar.
Max. flow rate:
2” 25 m^3/h
3” 50 m^3/h
Available in 40 –140 mesh.
Min. flushing pressure: 2 Bar.
Flushing flow rate:
5.4 m^3/h at 2 Bar.
6.8 m^3/h at 3 Bar
Construction materials: Nylon, Polypropylene.
TS_Ver-1_06-18_Eng
Handle
1
Cover
2
Filter body
3
Flush Pipe
4
Locking Ring
5
Nozzle
6
Filter Screen
7
Cup
8
Bushing 1"F X1"M
9
1" Flush Valve
10
3"
2"
280
280
A
508
490
B
750
720
C