Maritime G6100 Operation Manual page 99

Water Monitoring System
MI6100-0010
System Type Water Monitoring System
Task: Pressure Holding/Relief Valve Function Test
Task This instruction identifies the location and how to test the pressure
holding/relief valve. The test must be carried out by a trained technician.
description:
Difficulty 1-5 Overhaul Interval
Every 6 months
Spare Parts
Part no: Description:
02687 Pressure Holding/Relief valve
Instructions
Steps
1.
Warning: Do not change the opening pressure
setting on the holding/relief valve. The holding/relief
valve pressure must be set to 2.5 bar. A higher
opening pressure could result in system damage.
2.
The function test of the pressure holding/relief
valve is done by adjusting the pressure in the system
by means of the pressure reduction valve.
3.
Remove protective black plastic cap on the
pressure reduction valve. (B)
4.
Unscrew locking nut. (C)
5.
Turn the pressure
counterclockwise to increase the pressure in the
system. If the pressure holding/relief valve is
working properly, the pressure should not be able to
increase to more than 2.5 bar, which is the pressure
holding/relief valve opening pressure. (C)
6.
If the pressure doesn't increase to more than 2.5
bar, the test is done and the pressure reduction valve
can be lowered to 1.5 bar.
7.
If the pressure in the system rises above 2.5 bar,
the valve is not working properly.
8.
Solution: Readjust the opening pressure on the
pressure relief valve by turning the adjusting screw
counterclockwise until the valve opens at 2.5 bar.
9.
If the solution doesn't work, the valve should be
replaced.
Notes:
Ver.5.0 – Revision March 2022
Qty.
Photos:
adjusting screw
Estimated Time Consumption
2 min
Tools
Item:
1 x 13mm spanner
MI6100-0010
Page 99 of 110