Clemco WET BLAST FLEX User manual

Revision: 6
Clemco
International GmbH Carl-Zeiss-Straße 21 Phone.: [phone] – 90080
83052 Bruckmühl Mail: [email protected]
Germany Web: www.clemco-international.com
O W N E R ’ S M A N U A L
Wet blast systems
WET BLAST FLEX
&
WET BLAST FLEX COMPACT

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TABLE OF CONTENTS
1SCOPE..................................................................................................................3
2APPLICATION AND RESTRICTIONS..................................................................4
3DESCRIPTION OF THE EQUIPMENT..................................................................4
3.1 WET BLAST FLEX.........................................................................................................4
3.2 WET BLAST FLEX COMPACT..........................................................................................6
4FUNCTIONAL PRINCIPLE OF THE ENTIRE SYSTEM .......................................6
4.1 COMPONENTS.............................................................................................................7
4.1.1 Blast pot..............................................................................................................................7
4.1.2 KB-52-1 wet blast head ......................................................................................................7
4.1.3 W-92 type booster pump ....................................................................................................8
4.1.4 Water tank (only Wet Blast Flex)........................................................................................9
4.2 PNEUMATIC DIAGRAM ..................................................................................................9
4.2.1 Wet Blast Flex.....................................................................................................................9
4.2.2 Wet Blast Flex Compact .....................................................................................................9
4.2.3 Detailed description of the four possible functions...........................................................10
5OPERATION.......................................................................................................12
5.1 REQUIREMENTS ........................................................................................................12
5.2 SET-UP FOR INITIAL INSTALLATION AND REINSTALLATION..............................................12
5.3 DAILY SET-UP............................................................................................................14
5.4 START-UP AND OPERATION ........................................................................................15
5.5 SHUTDOWN AFTER FINISHING WORK ...........................................................................15
5.6 SHUTDOWN WHEN MOVING EQUIPMENT.......................................................................16
6MAINTENANCE..................................................................................................16
6.1 GENERAL NOTES.......................................................................................................16
6.2 DAILY MAINTENANCE CHECK LIST................................................................................16
6.3 WEEKLY MAINTENANCE CHECK LIST............................................................................16
6.4 MONTHLY MAINTENANCE CHECK LIST..........................................................................17
7TROUBLESHOOTING........................................................................................17
8REPLACEMENT PART LIST..............................................................................18

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1 Scope
This owner’s manual contains information regarding the operation and maintenance of the WET
BLAST FLEX and WET BLAST FLEX COMPACT SYSTEMS, consisting of:
WET BLAST FLEX / Part no. 27229D
WET BLAST FLEX COMPACT / Part no.. 27261D
a) WET BLAST FLEX consisting of:
As frame-mounted:
1. 140 l pressure blast pot with PT steel media metering/stop valve
2. KB-52-1 wet blast head
3. W-92 booster pump with attached filter regulator
4. 500 l water tank
5. High-pressure water hose and suction hose.
b) WET BLAST FLEX COMPACT consisting of:
As frame-mounted:
1. 100 l pressure blast pot with PT steel media metering/stop valve
2. KB-52-1 wet blast head
3. W-92 booster pump with attached filter regulator
The following owner’s manuals should additionally be observed:
1. Owner’s manual of single-chamber blast tool for 1 blaster with pneumatic metering
valve, pilot pressure regulator, TLR and HMS
2. Owner’s manual of PT type blast media metering valve
3. Owner’s manual of pilot pressure regulator
4. Owner’s manual of RLX III –ACS remote control deadman handle
5. Owner’s manual of W-92 booster pump

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2 Application and restrictions
The WET BLAST FLEX and WET BLAST FLEX COMPACT systems may be operated only with fer-
rite-free single-use blast media with grit size between 0.7 µm and 1.2 µm.
Max. permissible operating pressure: 12 bar
Min. required operating pressure: 5.5 bar (necessary to open PT type metering valve)
Main dimensions of the entire system:
Length Width Height Weight
Wet Blast Flex
2000mm
(without hoses) 800mm 1500mm (without crane eyes) ca. 330kg
Wet Blast Flex Compact
1200mm 980mm 1500mm ca. 200kg
Table 1: Main dimensions
3 Description of the equipment
3.1 Wet blast flex
The full system (Figure 1a) is composed of the following main components:
Figure 1a: WET BLAST FLEX system
1. 2048 type 140 l blast pot
2. KB-52-1 wet blast head
3. W-92 booster pump
4. Water tank
111
2
4
3

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As a compact unit, it allows four different blast applications that can be controlled via the ACS slide
valves on the dual-function RLX remote control deadman handle. Figure 2 shows the remote control
deadman handle with both ACS slide valves that are installed for switching on and off of the blast me-
dia and water supply, respectively:
The ACS (A) slide valve (with the red hose) is used to open and close the blast media supply.
The ACS (B) slide valve (with the blue hose) is used to open and close the water supply.
The ACS valves are opened in each case by sliding in the direction of arrow and are active when the
deadman handle is pressed.
The four possible functions are as follows:
a) Dry blasting – air and blast media
b) Washing down – air and water
c) Wet blasting – air, water and blast media
d) Blowing off – air only
Figure 2: Deadman handle with ACS slide valves
Process Actuation
a Dry blasting
(air and blast media) Press the RLX deadman handle and open the ACS(A) slide valve with the red hose
(ACS(B) with blue hose closed)
b Washing down
(air and water) Press the RLX deadman handle and open the ACS(B) slide valve with the blue hose
(ACS(A) with red hose closed)
c Wet blasting
(air, water and blast media) Press the RLX deadman handle and open both ACS slide valves
d Blowing off
(air only) Press the RLX deadman handle and close both ACS slide valves
Table 2: Description of functions of the remote control deadman handle
RLX deadman
handle
ACS(A) slide valve
ACS(B) slide valve

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3.2 Wet blast flex compact
Figure 1b:WET BLAST FLEX COMPACT SYSTEM
1) Blast Pot 140l Typ 2048
2) Nassstrahlkopf KB-52-1
3) Druckerhöhungspumpe W-92
The four possible functions are the same as with the Wet Blast Flex:
e) Dry blasting – air and blast media
f) Washing down – air and water
g) Wet blasting – air, water and blast media
h) Blowing off – air only
4 Functional principle of the entire system
Figure 3: Main components of the WET BLAST FLEX system
1
3
2

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The WET BLAST FLEX wet blast system is a pressure blast machine which is connected to a self-
priming pump (W-92) and
-a 500 l water tank (Wet Blast Flex)
-or is connected directly to the water pipe (Wet Blast Flex Compact).
The pressure blast machine and the W-92 booster pump are supplied with compressed air in parallel.
The compressed air is cleaned in the connection filter of the booster pump and then drives the self-
priming water pump via an air motor. The primed and pressurised water is pumped to the KB-52 wet
blast head via a high-pressure water hose. The water is directly injected into the blast media air flow
(blast nozzle) via the wet blast head and is atomised. The water volume can be regulated via the nee-
dle valve as well as the nozzle of the KB-52-1. The water binds the dust that would normally be creat-
ed during blasting. The machine can also be used for dry blasting, washing down or blowing off thanks
to the intelligent control.
4.1 Components
4.1.1 Blast pot
Typ SC2048 for Wet Blast Flex
Typ SC2040 for Wet Blast Flex Compact
Figure 4: Blast pot
Please follow the separate owner’s manual regarding this.
4.1.2 KB-52-1 wet blast head
The water is injected from the water tank through the high-pressure hose (Item 3) into the blast media
air flow (blast nozzle) directly via the wet blast head and is atomised. The water volume can be regu-
lated via the needle valve (Item 1) as well as the nozzles of the KB-52-1. The water can be shut off
completely with the stop-cock (Item 2).

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Figure 5: KB-52-1 wet blast head
4.1.3 W-92 type booster pump
The W-92 booster pump is self-priming and is supplied directly from the water tank. The sieve (Item 1)
holds back dirt from the water tank and supply line.
For further details regarding the booster pump please consult the separate user manual.
Figure 6: W-92 type booster pump
Item
1
Item
2
Item
3
Item
1

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4.1.4 Water tank (only Wet Blast Flex)
The water tank installed in the WET BLAST FLEX is made from UV-stabilised polyethylene. It has a
capacity of 500 litres and a ¾” connection. It includes a scale for reading off the water level.
Figure 7a-Water tank
Figure 7b-Water connection at the tank
Figure 7a & 7b: Water tank and water connection
4.2 Pneumatic diagram
4.2.1 Wet Blast Flex
Figure 8: WET BLAST FLEX pneumatic diagram
The compressed are is supplied to the system through the water separator (Item 8).
4.2.2 Wet Blast Flex Compact
The same pneumatic plan as for the Wet Blast Flex can be applied only items 28, 29 and 30 are omit-
ted, as the water supply is flexible, directly via a tap.

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4.2.3 Detailed description of the four possible functions
a) Function 1 – Dry blasting (air & blast media)
ACS(A) slide valve (Item 19.1) on the deadman handle at the red hose (slide in the direction of
the arrow!) opened
ACS(B) slide valve (Item 19.2) at the blue hose closed.
If the deadman handle (Item 19) is pressed, the compressed air flows into the blast pot
through the pilot pressure regulator (Item 6).
At the same time:
- the closing plug (Item 14) closes the filler opening with O-ring (Item 15).
- the TLR outlet valve (Item 11) closes
- the blasting process begins.
The desired blast pressure is set with the pressure regulator (Item 7) via the pilot pressure
regulator (Item 6).
If the deadman handle is released:
- the TLR outlet valve (Item 3) opens
- the pot is ventilated.
The blast media metering valve (Item 10) regulates the blast media supply in the air flow. It is
opened and closed pneumatically through the ACS(A) (Item 19.1) slide valve. When ACS(A)
(Item 19.1) is closed, only air and no blast media flows through the blast media hose.
When ACS(A) (Item 19.1) is opened, then the blast media flows through the blast-hose, under
pressure, to the blast nozzle (Item 18). As soon as the blaster releases the deadman handle
(Item 19), the blasting process is interrupted and the blast pot is ventilated. The TLR outlet
valve (Item 3) opens. The bang is attenuated via the silencer (Item 2).
b) Function 2 – Washing down (air & water)
If no blast media but only water is needed in the application, the following steps are neces-
sary:
-ACS(A) slide valve (Item 19.1) at the red hose closed
-ACS(B) slide valve (Item 19.2) at the blue hose (slide in the direction of the arrow!) opened.
The compressed air is supplied to the system through the water separator (Item 8).
If the deadman handle (Item 19) is pressed, the compressed air flows into the pot through the
pilot pressure regulator (Item 6).
As a result:
- the closing plug (Item 14) closes the filler opening with O-ring (Item 15).
- the TLR outlet valve (Item 3) closes.
- air flows through the 3/2-way valve (Item 7.2) to the deadman handle (Item 19) and
via the filter unit (Item 21) to the pump (Item 22).
This is self-priming and is supplied directly from the water tank (Item 28). The sieve (Item 23)
holds back possible dirt.