2C Switching Block 2010 H without Backpropagation
1. Introduction
The APSON 2C Switching Block
2010 H without Backpropagation
belongs to the class of special switching
blocks for 2-components lacquers with hardener. Due to its
characteristics it improves the quality and increases the
efficiency of the coating process.
This type of switching block is particularly suitable to
the employment in automatic coating systems with
often to change chemicaly aggressive media, e.g. lacquers, hardeners,
solvents, caustic solutions, a.o. It is applicable
both for 2C normal lacquers and 2C metalic lacquers.
Conventional medium switching blocks for 2-components
lacquers are not optimized and have usually channels for supplying
the lacquer components and at least one channel for exhaust of the
lacquer product. In practice the lacquer product in these channels
can harden. This leads to problems during painting and when rinsing
the medium switching blocks. Clogged medium switching blocks must
be exchanged at expensive timely costs and the medium channels
must again be drilled out.
The APSON 2C Switching Block
2010 H without Backpropagation
is equipped with high-quality death-space-free APSON valve
technology and has a mixing space with minimum volume
within which the master lacquer mixes with the hardener.
This mixing space is optically examinable and fastly cleanable.
Hardenings of the lacquer product cannot develop during the normal
operation. If this should occur somehow, the ready status
of the APSON 2C Switching Blocks is restorable in
shortest time.
2. Structure
The APSON 2C Switching Block
2010 H without Backpropagation
consists mainly of:
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A solid valve block with connection- and valve-designations.
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Five independent APSON valves (see Ordering Data).
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Tube connectors for the connection of the media.
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Output cone with output terminal and union nut.
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Optionally two checkvalves (for pulsation air and solvent).
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An attaching bracket.
Legenda = SL screw nut, b = SL screw connectionc = Checkvalve, d = Checkvalvee =APSON Valve, f = Pneumatics connectiong = 2C switching block, h = Union nuti = Output cone, j = 2C-lacquer outletk = Attaching bracket, l = 2 Holes ø7 mm(horiz. hole spacing 20 mm)
The APSON 2C Switching Block
2010 H without Backpropagation
is is made of inoxidable steel and is to be fastened by means
of the attaching bracket to a suitable place.
The media hoses are attached by means of tube screw connectors
at the associated marked media connections for the master
lacquers (SL1 and SL2), hardener (H),
diluant resp. solvent (V/Lo) and pulsation air (PL).
The union nut at the output cone makes possible fast disassembly
for purpose of maintenance resp. inspection.
3. Function
The 2C-lacquer product necessary for painting results in the
mixing space of the 2C switching block from simultaneous open
valves for master lacquer and the hardener.
The 2C-lacquer product then flows through the outlet A
of the 2C switching block and through a Mixer/Homogeniser
which can be connected at the outlet.
LegendChannel lengths: Lv = Lw = Lx = Ly = Lz = 0.2 mmChannel volume: Vv + Vw + Vx + Vy + Vz = 0.2 ml
For changing the lacquer, the master lacquer in the lacquer
hose can be pushed out through the outlet A by opening
the respective lacquer valve.
Subsequently the lacquer hose for the master lacquer is to be
rinsed, as well as the 2C switching block.
For rinsing the 2C switching block, the valves for master
lacquer (SL1 resp. SL2) and hardener (H) are to be closed.
Subsequently, the valves for the solvent (V/Lo)
and for the pulsation air (PL) are to be opened and closed
periodically and alternating. Thus an air/solvent
sequence results as follows: air-solvent-air-solvent...
4. Features
APSON 2C Switching Block
2010 H without Backpropagation
has the following capability caracteristics:
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Produces high-quality media mixture by turbulent pre-mixing of the media already when meeting the media in the mixing space.
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Does not form air columns because the mixing space has no media channels.
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Reaches 100% utilization of material (no hardened medium columns in channels).
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Is environmentaly careful due to media recuperation and short rinsing times.
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Is cost-saving due to minimized media consumption.
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Makes possible simple handling when assembling and maintenance.
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Has death-space-free APSON valve technology.
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Has rinsing- and throughput-optimized media channels.
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Consists of inoxidable steel, thus corrosion resistant and wear resistant.
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Is insensitive to caustic solutions and weak acids.
5. Technical Data
| Denomination: | APSON APSON 2C Switching Block 2010 H without Backpropagation |
| Media: | Normal and metalic lacquers, hardeners, solvents, caustic solutions, a.o. |
| Media pressure: | Max. 20 bar |
| Valve assembly: | APSON 2/2-Ways Valves 2009, death-space-free valve technology |
| Material: | Inoxidable steel |
| Seals: | Viton™, or in accordance with customer's request |
| Media entrances: | For hose D mm= mm8 mm, d mm= mm6 mm (or in accordance with customer's request) |
| Output terminal: | For hose D mm= mm8 mm, d mm= mm6 mm (or in accordance with customer's request) |
| Dimensions: |
Without valves:
Length and/or Width 70 mm,
Height of 45 mm
With valves:
Length and/or Width 140 mm,
Height of 100 mm
|
| Mass: | 1.3 kg (with valves) |
6. Ordering Data
| Denomination | Quantity | Part-Nr. |
| APSON APSON 2C Switching Block 2010 H without Backpropagation (with valves, attaching brackets and SL screw connections) | 1 | 050-A048 |
| APSON 2/2-Ways Valve 2009 (sparepart) | 5 | 060-A013 |
| APSON Mixer/Homogeniser | 1 | 200-0270 |
| APSON Gasket Kit (sparepart) | 1 | 300-0021 |
| APSON Checkvalve for the connection of pulsation air and/or solvent (option) | 2 | 100-A004 |
Options:
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Other materials or capability characteristics on customer's request against surcharge.
APSON Lackiertechnik GmbH, Am Wiesengrund 15, D-63075 Offenbach
Mobile: +49-171-373-16-33 Phone: +49-69-82-369-447 Fax: +49-69-82-369-448
www.apson.de email@apson.de
Changes without notice reserved.
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