English; Technical Features - Interpump Group H2820 Mode D'emploi

= ENGLISH =

FLOW RATE
MODEL
l/min.
min-max
H2820 20-200 5.28-52.8
«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 H1520 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
sets the pressure to zero in the portion of the system preceding
the valve.
2- WARNINGS:
2.1- To ensure the tightness of the fittings used to connect the
valve to the system, interpose a metal washer with a rubber ring
or insert an appropriate sealing on the thread and tighten them
to the torque indicated in the table.
THREADING
G1" – 1"11,5NPT
2.2- Use guns or other control devices ensuring a perfect seal
when closed. Leakages may compromise the correct functioning
of the valve.
3- INSTRUCTIONS FOR CALIBRATION:
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 adjustment screw pos.16 in order to
completely release the spring.
3.2.2- 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

RATED PRESS.
g.p.m.
(USA)
MPa bar p.s.i. MPa bar
min-max
28
WITH THE INSTRUCTIONS
Nm
200
PRESS. max
280 4060 31 310 4500 85
3.2.3- Keeping the gun or the water control device open, start
adjusting the pressure by screwing down the screw pos.16.
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.
3.2.4- Lock the screw pos.16 by tightening the nut pos.18.
3.2.5- In order to obtain working pressures lower than the
maximum set pressure, unloose the nut pos.18 and turn the
screw pos.16 counter-clockwise.
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.
Copyright
The content of these operating instructions is property of Interpump
Group.
The instructions contain technical descriptions and 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
- -
5
TEMP. max
p.s.i. °C °F
185 3.45 7.6
MASS
kg lbs
notice.