English; Technical Features - Interpump Group S284 Mode D'emploi

= ENGLISH =

FLOW RATE
min - max
l/min
7 – 41
g.p.m.
1,9 – 10,8
(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 S284 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 S284 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 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
5 – 34
50 – 340
725 – 4930
WITH THE INSTRUCTIONS
max WORKING
PRESSURE
- WP -
MPa 28
bar 280
p.s.i.
4060
2.3- The package components must be disposed of in
compliance with the relevant laws in force.
3- INSTRUCTIONS
PRESSURE SETTING:
3.1- The installation and the pressure setting 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.
3.2- In order to determine the setting pressure of the S284
valve, it is necessary to equip the high pressure feeding line
of the system also with a pressure regulator.
3.3- The setting pressure is the pressure at which the valve
opens, thus determining the maximum pressure value that
the system cannot exceed.
IMPORTANT: the value of the setting pressure
is to be determined within the pressure range
stated in the table of technical features.
3.4- Pressure setting:
3.4.1- Connect the S284 valve and the pressure regulator
to the water system.
3.4.2- Unloose the adjustment screw Pos.1 of the S284
valve in order to completely release the spring.
3.4.3- Open the gun or the water control device and start
the system. Make sure that the air contained in it is fully
ejected.
3.4.4- Slightly screw down the adjustment screw Pos. 1.
3.4.5- Keeping the gun or the water control device open,
slowly increase the pressure in the system by using the
pressure regulator.
3.4.6- Check the pressure value at which the S284 valve
opens releasing the excess of water.
3.4.7- Perform the steps 2.4.4, 2.4.5 and 2.4.6 again until
the desired setting pressure is reached.
3.4.8- When the desired pressure has been reached, open
the gun/control device a few times again in order to
stabilize the various components (seals, springs etc.).
Check the pressure value again and correct if necessary.
- -
7
TEMP.
max
°C °F
MPa
bar 30 86
p.s.i.
FOR INSTALLATION
MASS
kg lbs
0,2 0,45
AND