46
HARDI CIRCULATION SYSTEM
GB 08 07
NumberNumber
NumberNumber
Number
s and their meanings and their meaning
s and their meanings and their meaning
s and their meaning
1. Suction filter
2. Suction manifold (black)
3. Pump / Double pump (HCFS)
4. Pressure manifold (green)
5. Agitation
6. Without agitation
(pressure equalisation)
7. HARDI MATIC
8. Return line (Self-cleaning filter)
9. Self-Cleaning Filter
10. Safety valve
11. Distribution valves
12. Return from
Pressure Equalisation
13. Sprayer boom
14. Pressure gauge
15. Non-return valve
16. Non-return valves
17. Circulation valve
18. Agitation valve
19. Ejector valve
20. Ejector
21. Circulation suction valve
22. Rinsing tank
23. Circulation filter
DescriptionDescription
DescriptionDescription
Description
HARDI CIRCULATION SYSTEM: By the incorporation of an ejector and connecting the boom lines with tank and
MANIFOLD, it enables the formation of a flow from tank (or rinse tank) through the boom lines when the sprayer is
not spraying. The HARDI CIRCULATION SYSTEM provides the following features compared to a conventional
sprayer: Instant spraying when starting since boom lines are primed prior to start, reduced risk of sedimentation in
boom lines since there is a continous flow, which creates a possibility to flush and clean the boom without spraying.
This do not apply to the nozzles, as there are no flow in them when spraying is off.
FunctionFunction
FunctionFunction
Function
The sprayer can be equipped with HARDI CIRCULATION SYSTEM in combination with either a conventional liquid
system or a High Capacity Fluid System (HCFS). The operation of the liquid system is identical for both systems.
At a sprayer with HARDI CIRCULATION SYSTEM, an extra valve connected with a circulation suction filter is added
to the MANIFOLD system. The valve and filter are fitted to the right side of the MANIFOLD valves. This valve has
three positions: circulation from main tank, circulation from rinse tank or circulation off (see signs on valve). When
spraying is on, the sprayer functions are like a normal sprayer, but when distribution valves are turned off, valve
no. 17 and 19 open (see function diagram) and allow a flow to the ejector (20) and from the distribution valves (11).
Fluid through valve 19 comes from pump and is led into the ejector. This causes a vacuum in hoses through valve
17 allowing the fluid to be sucked from boom pipes through valve 17 and the ejector back into main tank.
Function diaFunction dia
Function diaFunction dia
Function dia
gg
gg
g
rr
rr
r
am - High Caam - High Ca
am - High Caam - High Ca
am - High Ca
pacity Fpacity F
pacity Fpacity F
pacity F
luid Syluid Sy
luid Syluid Sy
luid Sy
stem (HCFS)stem (HCFS)
stem (HCFS)stem (HCFS)
stem (HCFS)
Function diaFunction dia
Function diaFunction dia
Function dia
gg
gg
g
rr
rr
r
am - conam - con
am - conam - con
am - con
vv
vv
v
entional liquid syentional liquid sy
entional liquid syentional liquid sy
entional liquid sy
stemstem
stemstem
stem
Detailed description on use of MANIFOLD system can
be found in the instruction book for the specific sprayer.
NOTE! The new EVC section valve with an extra return
flow channel is a pre-requisite for HARDI CIRCULATION
SYSTEM.
Diagrams for standard EVC system and for High Capa-
city Fluid System (HCFS) with HARDI CIRCULATION
SYSTEM are shown to the left and below.
To Next Page
Loading...
Need help?
General
