English; Technical Features - Pratissoli S4090 Mode D'emploi

= ENGLISH =

FLOW RATE
min - max
l/min
150 – 950
g.p.m.
40 – 251
(USA)
«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
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 S4090 safety 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.
The valve has been designed to protect positive-displacement
pumps or components (such as containers and pipes) of high
pressure water hydraulic systems up to category II.
1.2- Since the S4090 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 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.
1.4- 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.
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 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.

TECHNICAL FEATURES

SETTING PRESSURE
RANGE
– SP –
min – max
6 – 48
60 – 480
870 – 6960
WITH THE INSTRUCTIONS
MAX WORKING
PRESSURE
– WP –
MPa 40
bar 400
p.s.i.
5800
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 150 to 950 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 S4090 valve is
designed for Interpump Group pumps and/or products.
3.6- Before installing the valve, slightly lubricate the G1"1/2
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 (400
Nm).
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: In order to effectively protect the
system, we suggest that the valve is installed
close to the pump.
absence of any on-off devices.
- -
6
TEMP.
Min
Max
°C °F
MPa
5 41
bar
40 185
p.s.i.
Also make sure of the
MASS
kg lbs
20 44