- 02 - B.6.20.44-P
F22.060.02, issued on 01.98
When the pressure system is closed, there is an equilibrium of forces [air pressure (p
L
) x area of ring
piston (A
D
) = fluid pressure (p
M
) x area of the thinner part of the step piston (A
d
)] and the pump is
stationary.
When fluid is removed from the pressure system, the pump automatically starts. Even the smallest
leakage is replenished by topping up.
In a large pressure system, a non-return valve
bl must be fitted at the pressure outlet because of
naturally produced temperature fluctuations (increase in pressure due to thermal expansion) – this
also applies to hot spraying systems.
A safety valve
bm protects the reciprocating pump and the pressure system in cases where the air
inlet pressure exceeds its maximum permissible value.
The sound absorber
bn at the air outlet reduces the noise of the outgoing air.
SUITABILITY, MATERIAL
Material suitability
Neutral highly suitable
Corrosive not suitable
Abrasive
suitable under
certain conditions
Acidic not suitable
Inflammable
1)
highly suitable
UV-hardening
suitable under
certain conditions
Hardening
agent
suitable under
certain conditions
Kinematic viscosity
in mm
2
/s
Suitability Solids content Suitability
up to 500 highly suitable Low highly suitable
500 up to 750 highly suitable Low to 2% suitable
over 750
suitable under certain
conditions
over 2% must be tested
(must be tested)
1)
Hazard class AI, AII, AIII, reciprocating pump earthed.
In the case of strongly abrasive and aggressive materials, please contact us.
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