-
7
-
«Translated from original instructions»
THIS DOCUMENT PROVIDES THE INSTRUCTIONS FOR
THE INSTALLATION, USE AND MAINTENANCE OF THE
VALVE, THEREFORE IT IS AN INTEGRAL PART OF
THE VALVE ITSELF AND MUST BE READ CAREFULLY
BEFORE ANY USE AND KEPT WITH CARE.
STRICTLY
COMPLY
WITH
THE
INSTRUCTIONS
CONTAINED IN THIS DOCUMENT IN VIEW OF A SAFE
AND EFFECTIVE USE OF THE VALVE.
FAILURE TO COMPLY WITH THESE INSTRUCTIONS
MIGHT CAUSE EARLY FAULTS AND RESULT IN
SITUATIONS OF DANGER, IN ADDITION TO VOIDING
ANY WARRANTY.
1- GENERAL INFORMATION
1.1- The S723 relief valve is a manually-adjustable,
pressure-operated device which, according to its
setting, releases the excess of water when the pressure
inside the pump/system exceeds the adjusted value,
thus reducing the pressure. The normal working
conditions can be restored by turning off and then
restarting the system.
1.2- Since the S723 valve is used in connection with a
high pressure water pump/system, which shall be called
hereafter only “system”, installation and use must be
suited to the type of system used and comply with the
safety Regulations in force in the Country where the
valve is used.
1.3- Before using the valve, make sure that the system
the valve is used with is certified to comply with the
relevant Directives and/or Regulations.
1.4- Before installing and using the valve for the first
time, we suggest you check that it is undamaged and
make sure that the rated features correspond to the
required ones. If this is not the case, do not use the
valve and contact the after-sales service of Interpump
Group for information.
2- PACKAGE
2.1- Packages must be handled in compliance with the
instructions stated on the packages themselves and/or
provided by the manufacturer.
2.2- In case the valve is not used immediately, it must
be stored in its integral package and placed in areas
which are not exposed to the weather and which are
protected from excessive humidity and from direct
sunlight. Moreover, it is advisable to place wooden
pallets or other types of pallets between the package
and the floor, in order to prevent the direct contact with
the ground.
2.3- The package components must be disposed of in
compliance with the relevant laws in force.
3- INSTRUCTIONS FOR INSTALLATION:
3.1- The setting pressure (SP) is adjusted and fixed
by sealing by Interpump Group and cannot be
changed. The values of the setting pressure and
suggested maximum working pressure (WP) are
stated on the valve.
3.2- The maximum flow rate depends on the setting
pressure and ranges from 41 to 230 l/min. The exact
value is stated on the valve.
3.3- The setting pressure (SP) is the pressure at which
the valve opens, thus determining the maximum
pressure value that the system cannot exceed.
3.4- The installation must be made by qualified and
authorized staff only, who must have the required skills
to handle high pressure systems and be informed of the
operating and safety instructions contained in this
document.
3.5- The fastening and sealing system of the S723
valve is designed for Interpump Group pumps and/or
products.
IMPORTANT: During use, never exceed the
maximum values of pressure, flow-rate and
temperature as stated in this document
and/or indicated on the valve.
IMPORTANT: For a correct use of the
valve, it is necessary to install it in the area
of the system reaching the higher pressure
during use. Moreover, we suggest you
install it by the component that you wish to
protect most from pressure peaks.
= ENGLISH =
TECHNICAL FEATURES
FLOW RATE
SETTING PRESSURE
RANGE
-SP-
max WORKING
PRESSURE
-WP-
TEMP.
max
MASS
min - max
min - max
°C
°F
kg
lbs
15 – 230
3,9 – 60,8
l/min
g.p.m.
(USA)
6 – 84
60 – 840
870 – 12180
MPa
bar
p.s.i.
70
700
10150
MPa
bar
p.s.i.
60 140 1,7
3,8
