English; Technical Features - Interpump Group S284 Bedienungsanleitung

= 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 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 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.
3- INSTRUCTIONS FOR INSTALLATION AND 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.

TECHNICAL FEATURES

SETTING PRESSURE
RANGE
- SP -
min - max
5 – 34
50 – 340
725 – 4930
max WORKING
PRESSURE
- WP -
MPa 28
bar
280
p.s.i.
4060
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.
3.4.9- Once the setting has been accomplished, we
suggest you seal the adjustment screw in order to avoid
any unintentional variation of the pressure and indicate
on the valve itself the actual value of the setting
pressure that has just been determined.
3.4.10- During the normal functioning of the system, the
maximum working pressure (WP) should be kept within
approx. 85% of the setting pressure of the valve (SP).
Interpump Group disclaims all responsibility for any
damages caused by the inaccurate adjustment of the
setting pressure and/or by any incorrect use of the
valve that cannot be reasonably predicted.
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
4.7- To fix the valve, manually screw the R3/8" tapered
thread fitting, then apply another 2-3 turns by means of a
spanner to tighten it completely. If necessary, a proper
sealant can be used in order to ensure the thread seal.
WARNING: Do not use the valve in the systems covered
by Directive 97/23/CE (PED) - Cathegories I - II - III – IV
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 notice.
- -
5
TEMP.
max
°C °F
MPa
bar
30 86
p.s.i.
MASS
kg lbs
0,2 0,45