1. Introduction to top
The APSON Lacquer Pressure Regulator
PRP-2023-R is a pneumatically controllable
and backwards flushable flow-through regulator for
aggressive viscous media, e.g. paints, solvents, alkalis, a.o. Because of
the design, it allows before the flushing process to recover
medium, not only by pushing forward, but also by pushing medium
backwards. This regulator type is optimized for good rinsing barness and
small solvent consumption. Therefore it is particularly suitable to the
employment in automatic systems.
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As well forward as backward flushable.
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Environmental carefully due to short rinsing times.
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Very good rinsing barness and small solvent consumption.
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Compact design, large throughput and small pressure
losses.
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Very fast exchange of a defective diaphragm (2 minutes).
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Simple handling at assembling, adjustment and
maintenance.
3. Structure and Function to top
The APSON Lacquer Pressure Regulator
PRP-2023-R (see Fig. 2) consists mainly of a housing (4, 21,
22) with medium input 1 and throttle valve (3, 5, 6), lacquer chamber 26,
two solvent-resistant diaphragms (8, 10) connected by spacer ring 9 and
thrust piece (7, 11, 12), as well as the pneumatic chamber 23. The
indicator unit 13 allows to monitor or to manually control the regulation
process.
The diaphragms are subjected on one side with the pressure of the to
be regulated medium 26 and on the other side with the pressure of the
pneumatical control air 23. Pressure variations at the input of the
controller are smoothed by this construction.
Legend: 1 = Medium input, 2 = Input
connector, 3 = Closing spring, 4 = Lower casing part, 5 = Sealing ball,
6 = Sealing ring, 7 = Thrust piece, 8 = Medium diaphragm, 9 = Spacer ring,
with vent hole, 10 = Pressure air diaphragm, 11 = Spacer nut, 12 = End
nut, 13 = Sealing ring, 14 = Indicator unit, 15 = Slide bush,
16 = Compression spring, 17 = Indicator pin, 18 = Indicator cap
(optional), 19 = Pneumatic input, 20 = Plug-in connection, 21 = Upper
casing part, 22 = Overthrow nut, 23 = Pneumatic chamber, 24 = Centering
pin, 25 = Vent hole, 26 = Lacquer chamber, 27 = Medium output.
The thrust piece connected with the diaphragms controls the medium
quantity per time unit, flowing through the pressure regulator, via the
throttle provided with the sealing ball. The regulation procedure is
achieved through the equilibrium of the forces between the pneumatic
pressure on one side, and on the other side by the resulting force due to
the medium pressure together with the force of the recoil spring in the
supply bore of the throttle.
The desired medium pressure at the outlet of the regulator is
adjusted pneumatically via pressure air at the pneumatic input of the
regulator. For backward flushing of the pressure regulator, the control
air must be set approximately to the pressure of the flushing
medium.
Important: APSON Lacquer Pressure
Regulators are robust in-stream flow-through regulators for viscous media.
Any calibrations and measurements are to be run only when the medium
actively streams through the regulator. When
exchanging the diaphragms it is to be made certain that the Teflon™-coated
surface of the diaphragm points into the direction of the medium.
4. Technical Data to top
Denomination: |
APSON Lacquer Pressure Regulator
PRP-2023-R |
Media: |
Lacquers, solvents, alkalis, a.o. |
Medium pressure input: |
max. 25 bar |
Flushing pressure: |
max. 12 bar |
Operating pressure range, at the output: |
approx. 0 to 20 bar (best results in the upper third of the
operating range) |
Connections: |
1 lacquer input G1/4", 1 lacquer output G1/4",
1 pneumatic input G1/8" |
Materials: |
Medium-touching parts made of inoxidable steel. Union nut
and cover part from aluminum, hardcoated. Diaphragms from rubber with
fabric proportion, Teflon™-coated.
|
Dimensions [mm]: |
Height 80, Diameter 57, Length 60 |
Mass: |
approx. 330 g |
5. Ordering Data to top
Denomination |
Part-Nr. |
APSON Lacquer Pressure Regulator PRP-2023-R,
with indicator unit |
040-A005-R4 |
APSON Lacquer Pressure Regulator Key (wrench width 54 mm) |
100-0105 |
Options: All aluminum parts made of inoxidable steel.