Technical Features - Interpump Group Pralissoli R3 HP Mode D'emploi

Max FLOW RATE
g.p.m.
l/min.
(USA)
341 90
«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 R3HP pressure regulator is a manually-adjustable,
pressure-operated device which, according to its setting,
limits the pump/system pressure by conveying the excess of
water to the by-pass.
Moreover, when the outlet flow is blocked, this device totally
releases the flow, thus keeping the pump/system at the
adjusted pressure.
1.2- Since the R3HP 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.
1.5- In order to install the valve correctly, follow the
instructions for the water inlet and by-pass connections, as
stated in this instruction manual and/or on the valve itself.
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.
2.3- The package components must be disposed of in
compliance with the relevant laws in force.
3- INSTRUCTIONS FOR PRESSURE SETTING:

TECHNICAL FEATURES

Max PRESSURE
MPa bar
45 450
WITH THE INSTRUCTIONS
Max TEMPERATURE
p.s.i. °C
6527 85
3.1- In order to obtain a correct adjustment and consequently
a proper functioning of the valve, always make sure that,
when working at the maximum pressure, the valve by-pass
keeps releasing a quantity of water equal to 5% of the total
flow-rate. In case the flow-rate at the by-pass is close to zero
or exceeds 15% of the maximum flow-rate, this could cause
faults, early wear and result in situations of danger.
The positions mentioned in the following instructions refer to
those shown in the spare parts catalogue (page 3).
3.2- Connect the valve to the water system and follow these
steps:
3.2.1- Unloose the nut pos. 2.
3.2.2- Unscrew the screw pos. 1 in order to completely
release the springs.
3.2.3- Open the gun or the water control device and start the
system. Make sure that the air contained in it is fully ejected.
3.2.4- Keeping the gun or the water control device open,
start adjusting the pressure by screwing down the screw
pos.1. Alternate the adjusting operations with a few openings
and closings of the gun or of the control device. When the
desired pressure has been reached, open and close 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.
3.2.5- Screw down the lower nut pos. 2 up to contact and
lock it on the body.
3.2.6- In order to obtain working pressures lower than the
maximum set pressure, unscrew the screw pos. 1.
In case of doubts, do not hesitate to contact
the after-sales service of Interpump Group.
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.
4- WARNINGS
4.1- The installation and the setting of the maximum
pressure must be made by qualified 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.
4.2- The installer must provide the ultimate consumer with
the proper instructions for the correct use of the system the
valve is used in connection with.
4.3- Use soft and filtered water only. In case of salt water
and/or of water containing solid particles of a size exceeding
360µm, the internal components of the valve will be subject
to quick wear; furthermore, this might compromise the
correct functioning of the valve. Addition agents can be used
in the water, provided that they are delicate, biodegradable
and
- -
7
= ENGLISH =
MASS
°F kg
185 5.3
lbs
11.7