22
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
Function
D
The bypass valve has 4 functions:
1. Protect the machine against excess pressure.
2. Relieve the pressure in bypass.
3. Fast conversion to high-pressure.
4. Ensure 0 pressure when the machine is stopped.
Operation:
The water from the pump is led into chamber A of the bypass valve.
From there, the water passes through hole B in piston C and out of the machine.
This leads to a pressure imbalance in piston C, which keeps valve disc D closed to valve seat E.
Bypass:
When water consumption stops (the spray handle is released), pressure increases briefly until sa-
fety valve F opens upon reaching the pressure setting, which should be adjusted to 25-30 bars over
working pressure. This causes the pressure drop in piston C to disappear, and valve disc D moves
from valve seat E. The machine is now running in bypass.
A
B
C
E
D
F
Function By-pass system
Pic. D1: By-pass system
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