General Information - Interpump Group H202M Bedienungsanleitung

= ENGLISH =
«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 H202M 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
pump/system at the adjusted pressure.
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 TORQUE [Nm]
G 1/4
G 3/8
M 22x1.5
3/8 NPT
*G.D.S.M. = Turns after manual tightening
** M.T. = Manual tightening
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
Maximum pressure calibration:
The valve is calibrated to the maximum pressure value shown
in the table, IT IS NOT ALLOWED TO EXCEED THIS
VALUE. It is possible to recalibrate the valve by reducing the
maximum pressure following the indications given below. The
positions refer to those of the spare parts exploded view
drawings (page 3).
3.1.0- Connect the valve to the hydraulic system and proceed
as follows:
3.1.1- Unloose the register pos.14 in order to completely
release the spring.
WITH THE INSTRUCTIONS
the flow, thus keeping
*G.D.S.M.
25
45
** M.T.
2 - 3
3.1.2- With the gun or the open water control device, start the
system and make sure that all the air contained in it is
drained.
3.1.3- With the gun or the water control device open start
regulating the pressure by screwing the register pos.14 up to
the maximum desired pressure. Alternate the adjustment with
a few opening and closing operations of the gun or of the
control device. After reaching the desired maximum pressure
carry out some additional opening and closing operation.
Recheck the pressure and correct if necessary.
3.1.4- Loosen the dowel pos.26, tighten the ring nut pos.25
until it goes into contact with the guide-valve group pos.35,
re-tighten the dowel pos.26.
3.1.5- To obtain working pressure lower than the maximum
pressure, unscrew the register pos.14.
In case of doubts, do not hesitate to contact the after-
the
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.
The information contained in this document may be modified
without notice.
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.
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