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Les langues disponibles
Les langues disponibles
ENGLISH =
FLOW RATE
MODEL
L/min
min-max
W3.0
7-10
W3.1
11-15
W3.2
16-21
«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 W3 automatic 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 – and keeps under pressure the portion of the
system following the valve, while it reduces the pressure in the
portion of the system preceding the valve.
2- INSTRUCTIONS FOR MAX. PRESSURE SETTING:
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 exploded view (page 3).
2.2- Fit the valve to the pump head.
2.2.1- The valve can be fitted either on the left or on the right side
of the pump head indifferently.
In order to assemble the valve, follow these steps:
- remove the two caps located on the high and low pressure ports
on the side of the pump head on which you wish to fit the valve
- fix the valve on the pump head by means of the screws pos. 33
and pos. 35.
2.3- Connect the pump to the water system and follow these steps:
2.3.1- Remove the yoke pos. 2 by means of a screwdriver.
2.3.2- Take off the knob pos. 1.
2.3.3- Unloose the nut pos. 4 and unscrew the screw pos. 3 in
order to completely release the spring.
2.3.4- Screw down the pressure adjuster pos. 5 up to end stop.
2.3.5- Open the gun or the water control device and start the
system. Make sure that the air contained in it is fully ejected.
TECHNICAL FEATURES
Max PRESSURE
g.p.m.
MPa
bar
(USA)
min-max
1.85-2.64
2.90-4.0
27.5
275
4.22-5.55
Max
TEMPERATURE
p.s.i.
°C
3960
60
2.3.6- Keeping the gun or the water control device open, start
adjusting the pressure by screwing down the screw pos.3.
Alternate the adjusting operations with a few openings and
closings of the gun or of the control device. When the maximum
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.
2.3.7- Lock the screw pos. 3 by tightening the nut pos. 4.
2.3.8- Fit back the knob pos. 1 and the yoke pos. 2.
2.3.9- By adjusting the knob pos. 1 it is possible to obtain the
whole range of intermediate pressures between the maximum
pressure that has just been set and the minimum pressure.
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.
3- WARNINGS
3.1- Use guns and/or other control devices ensuring a perfect seal
when closed. Leakages may compromise the correct functioning
of the valve.
3.2- For safety reasons, it is advisable to equip the high pressure
feeding line of the system also with a relief or safety valve duly
adjusted.
3.3- Tighten the fittings pos. 35 and 33 in order to fix the valve to
the pump head (torque wrench settings as stated at page 4).
Copyright
The content of these operating instructions is property of
Interpump Group.
The
instructions
illustrations that cannot be copied and/or reproduced, entirely
or in part, nor distributed to third parties in any form and
without in any case authorized written consent of the owner.
Offenders will be prosecuted according to the laws in force
and proper legal actions will be instituted against them.
The information contained in this document may be modified
without notice.
-
-
5
MASS
°F
kg
lbs
140
0.9
1.98
contain
technical
descriptions
PUMPS
SERIES
44-47-49-
50-52-53-
58-59-60-63
and
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