Arkal 2" Sand Separator Installation and user guide

Arkal Sand Separator
Operation, Service & Maintenance Manual
Sand Separators Hydrociclone Batteries.
by www.irrigationglobal.com

Introduction
General
Arkal Filtration Systems congratulates you on purchasing the 2" sand separator. All Arkal
Filtration Systems are easy to install, use and service and do not require special skills to
operate them.
For proper operation and maintenance of the system please follow the instructions manual
Safety Instructions
Prior to installation or handling of the filter, please read the Installation and Operation
Instructions carefully.
1. Confirm filter draining prior to service and / or maintenance.
2. Take precautions while lifting, transporting or installing the filter.
3. Installation of the filter should be performed so as to avoid direct water contact with the
electronic control unit.
4. Confirm that filter weight, when full, does not exceed support construction limitations.
6. Prior to installation confirm that line pressure does not exceed filter’s operational
pressure rating (10 bar).
7. Please note, that during normal operation the filter enters into backwash mode
automatically, without prior warning.
8. Use only original parts when servicing the filter.
9. Arkal cannot accept responsibility for any changes or modifications to the equipment.
Special Note
Before opening the filter clamp, make sure that there is no system pressure in the filter.
Hydrociclone water Filtration Batteries.
by www.irrigationglobal.com

Sand Separation Technology
The Separation Process:
The water stream enters the cyclone at a relatively high velocity via the inlet pipe, which is
positioned, tangentially to the body of the cyclone.
The shape of the cone creates a vortex of water.
The resulting centrifugal force pushes the sand and other solids of a high specific gravity,
out of the main flow stream.
The low flow speed, next to the cyclone walls, cannot carry the heavy particles and allows
them to drop by gravity to the collecting tank below, while the clean water rises up in a
spiral motion to the outlet port.
Evacuation of the dirt collected by the chamber is achieved by opening a control valve,
normally activated by a controller usually triggered by time or set volume.
Sand Separator Technology
Hydrocyclones operate effectively and efficiently under a set flow rate. Constancy of flow rate
and adaptability of design enhance efficiency further.
When flushed regularly , cyclones require minimal maintenance.
The Hydrocyclone is a function
specific product, designed for the
removal of sand and therefore
comprising an invaluable element in
any total filtration system where sand
is an issue.
Although the Hydrocyclone will
remove / separate any particles with
a higher specific gravity (SG) than
water (1g/cm3or 9.345 lb/ft3),
maximum benefits are gained with an
optimal SG ratio of 1.1:1, where the
sand SG is 40% grater than the water
SG (i.e. 1.4g/cm3or 11.683 lb/ft3).
Sand Separators for Water Filtration Batteries.
by www.irrigationglobal.com

Sand Separator Batteries
Mode of Operation
1. Raw water flows through the inlet manifold and is distributed tangentially into the 2” Sand
Separator.
2. The tangential inlet causes centrifugal forces, which in turn cause separation of the heavy sand
particles from the water, throwing the sand particles toward the walls of the Sand Separator, where
the particles settle down to the sand manifold.
3. The clean water flows up to the outlet manifolds for consumer use.
Flush Mode
1. The controller transmits a pulse (per time).
2. The electrical pulse is transmitted to the solenoid sending a pressure pulse to the hydraulic valve
on the sand collector draining valve.
3. The signal is transmitted to the sand collector’s draining valve. This valve opens and then, from
the collector, releases the sandy water to the drain.
4. The flushing proceeds to is taking approximately 20 second.
Battery Installation
1. Pay careful attention that the inlet and outlet are correctly installed (see arrows on the manifold).
2. Connect backwash waste line to the drain.
Control System Installation
1. Refer to the manufacturer’s handbook before installing the controller.
2. Ensure that the voltage of unit solenoids and controller are correct (all solar units must have
latching solenoids).
3. Set the controller to a 20 second flush a setting may require changing to suit local watering conditions.
4. Set the flush time: 3 - 4 hour intervals between flush is recommended.
Hydrociclones for:
Water Sand separation from water.
by www.irrigationglobal.com

Technical Data
2" Sand Separator
Metric
US
Connection diameter
50 mm
2 inch
Maximum pressure
10 bar
145 psi
Maximum temp.
70ºC
149º F
Separation Efficiancy / Flow Rate
Particle size larger than (micron):
m3/h
gpm
150
100
50
% Efficiency
90
85
82
15
66
95
90
85
20
88
98
95
90
25
110
Headloss Chart
Sand Separators for Water Filtration Batteries.
by www.irrigationglobal.com

Technical Data
2" Sand Separator Batteries
Metric
US
HYD-2
HYD-3
HYD-4
HYD-5
HYD-2
HYD-3
HYD-4
HYD-5
Connection diameter
110mm
110mm
160mm
160mm
4 inch
4 inch
6 inch
6 inch
Maximum pressure
10 bar
145 psi
Maximum temp.
70ºC
149º F
Separation Efficiancy / Flow Rate
Particle size larger than (micron):
m3/h
gpm
150
100
50
HYD-2
HYD-3
HYD-4
HYD-5
HYD-2
HYD-3
HYD-4
HYD-5
%
Efficiency
90
85
82
30
45
60
75
132
198
264
330
95
90
85
40
60
80
100
176
264
352
440
98
95
90
50
75
100
125
220
330
440
550
Headloss Chart
Sand Separators Orders from:
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Spare Part Single Unit for Battery
No.
Description
Cat. No.
Materials
1
Filter cover complex
2202 0027
2
2" adapter vic./thr.
2253 4016
3
Filter cover
2501 0222
RPA
4
Erosion preventer
2200 0022
EPDM
5
Cover seal
5005 0002
EPDM
6
Clamp
5042 0030
SS
7
Filter body complex
2218 0003
8
2" nipple
5020 0051
PVC
9
Filter body
2200 2219
RPA
10
Gauge ports seal
5006 0004
EPDM
11
Gauge ports nut
2511 0103
RPP
12
2" cap
2511 0200
RPA
Sand Separators and Spares Orders from:
www.irrigationglobal.com