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FLOW RATE
min - max
l/min
10 – 30
g.p.m.
2,6 – 7,9
(USA)
«Translated from original instructions»
THIS DOCUMENT PROVIDES THE INSTRUCTIONS
FOR
THE
INSTALLATION,
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
INSTRUCTIONS MIGHT CAUSE EARLY FAULTS
AND RESULT IN SITUATIONS OF DANGER, IN
ADDITION TO VOIDING ANY WARRANTY.
1- GENERAL INFORMATION
1.1- The S1503 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 S1503 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.
TECHNICAL FEATURES
SETTING PRESSURE RANGE
10150 – 26100
USE
COMPLY
WITH
min - max
70 – 180
700 – 1800
2- INSTRUCTIONS FOR INSTALLATION:
2- INSTRUCTIONS FOR INSTALLATION:
2.1- The setting pressure (SP) is adjusted and fixed
AND
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.
2.2- The maximum flow rate depends on the setting
pressure and ranges from 20 to 30 l/min. The exact
value is stated on the valve.
THESE
2.3- The setting pressure is the pressure at which the
valve opens, thus determining the maximum pressure
value that the system cannot exceed.
2.4- 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.
2.5- The fastening and sealing system of the S1503
valve is designed for Interpump Group pumps and/or
products.
2.6- The seal of the G1/2 fitting is made by conical seal
part no. 083200210.
2.7- Before installing the valve, slightly lubricate the
G1/2 thread with a grease specific for very high
pressures (EP-extreme pressure) containing Graphite
or Molybdenum, then tighten the fitting by means of a
dynamometric wrench (70 Nm).
-
-
7
Max
TEMP.
° C
MPa
bar
30
p.s.i.
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.
suggest you install it by the component
that you wish to protect most from
pressure peaks.
MASS
° F
kg
lbs
70
1
2,2
Moreover,
we
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