Genebre 2272 User manual

Genebre Building. Av. de Joan Carles I, 46-48
08908 L'Hospitalet de Llobregat. Barcelona (Spain)
[email protected] - www.genebre.es
GENEBRE S.A.
LAST UPDATE: 30/03/2020 UPDATE NUMBER: 0
1
INSTALLATION, OPERATION AND MAINTENANCE
MANUAL
Pressure Reducing Valve
with threaded ends
GENEBRE Ref.: 2272

Genebre Building. Av. de Joan Carles I, 46-48
08908 L'Hospitalet de Llobregat. Barcelona (Spain)
[email protected] - www.genebre.es
GENEBRE S.A.
LAST UPDATE: 30/03/2020 UPDATE NUMBER: 0
2
INSTRUCTIONS FOR INSTALLATION, OPERATION & MAINTENANCE MANUAL
1. Product description ....................................................................... 3
2. Transport and Storage conditions …………….................................... 3
3. Exploded view ......................................................................................... 4
4. Installation Instructions
4.1 Preparation …………………............................................................... 5
4.2 Assembling ……………….………………………………………... 5
5. Operating Instructions
5.1 Usage ................................................................................................... 6
5.2 Setting instructions .............................................................................. 6
5.3 Cavitation Chart ………………….……………………………….. 6
6. Maintenance Instructions ...................................................................... 7
7. Reparation Instructions ....................................................................... 7
8. Hygiene and Safety Instructions ........................................................... 8

Genebre Building. Av. de Joan Carles I, 46-48
08908 L'Hospitalet de Llobregat. Barcelona (Spain)
[email protected] - www.genebre.es
GENEBRE S.A.
LAST UPDATE: 30/03/2020 UPDATE NUMBER: 0
3
1. Product description.
Genebre, S.A. offers a wide range of valves designed and assembled to handwheel and
drive fluids in industrial procedures.
The compatibility of materials used to build the valves (see technical specifications) and
the application of valves to the different industrial processes is at user's risk. Valves will
have an optimal behavior when working conditions do not exceed pressure and
temperature limits (pressure curve) for which they have been designed.
2. Transport and Storage conditions
Transport and storage of this kind of products must be done keeping them in their
original package!
VISUAL INSPECTION
Check whether during transport, unloading and placement the products have suffered
damages.
During storage it is recommended to keep them into the included protective wrapping to
avoid damages or dirt accumulation in the inside part of the valve. The wrap must not be
removed until valve is to be installed.
Valves must be stored in a dry and clean environment.
If you notice any kind of anomaly during reception of the goods, contact immediately
with GENEBRE in order to determine the possible responsibilities on the issue.
IMPORTANT NOTE:
Before installing and/or manipulating these elements, READ CAREFULLY these
instructions for use and OBSERVE all contained information. If you fail to
understand any of their content, please contact GENEBRE, S.A.
User is responsible for the safe use of these products, according to present
instructions for use and specific technical documentation of the device.

Genebre Building. Av. de Joan Carles I, 46-48
08908 L'Hospitalet de Llobregat. Barcelona (Spain)
[email protected] - www.genebre.es
GENEBRE S.A.
LAST UPDATE: 30/03/2020 UPDATE NUMBER: 0
4
3) Exploded view
Nº
Name
Material
Surface Treatment
1
Body
Stainless Steel 1.4408
Pickling + Blasting
2
Bottom cover
Stainless Steel 1.4408
Pickling + Blasting
3
Top cover
Stainless Steel 1.4408
Pickling + Blasting
4
Plug
SS 304
------
5
Piston
Stainless Steel 1.4408
------
6
U'ring
FPM
------
7
O'ring
FPM
------
8
Seat
FPM
------
9
Diaphragm
FPM
------
10
O'ring
FPM
------
11
O'ring
FPM
------
12
O'ring
FPM
------
13
Spring
Spring steel
Painted
14
Spring guide
Stainless Steel 1.4308 (CF8)
------
15
Nut
SS 304
------
16
Adjusting screw
SS 304
------

Genebre Building. Av. de Joan Carles I, 46-48
08908 L'Hospitalet de Llobregat. Barcelona (Spain)
[email protected] - www.genebre.es
GENEBRE S.A.
LAST UPDATE: 30/03/2020 UPDATE NUMBER: 0
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4. Installation instructions
4.1) Preparation
Remove any material remains of the valve wrapping.
Serious problems may arise with the installation of a valve in a dirty pipe.
Make sure the pipe is not dirty and doesn’t have welding particles, for example, before
installing it. This may cause irreparable damages in the valve when the equipment is
started → prepare a clean working area.
Plan beforehand enough space for future maintenance operations.
4.2) Assembling
Make sure the valve's pipe and thread end are clean and are compatible one with
another (type of thread end) Apply an appropriate sealing into the pipes' thread ends and
thread the valve being careful not to excessively tighten the conical threaded ends.
To tighten the valve into the pipe it is recommended to use a spanner or monkey wrench
only on the hexagonal area of the valves edges or in the body central assembly; the force
applied needs to be less than 30 Nm.
Design for this kind of valves allows only one position for assembling it to the
pipe, specified by means of an arrow in the valve's body that indicates the
direction in which the fluid needs to circulate.
If possible, it is recommended to install the valve in horizontal position.
Valves do not have to support pipe's efforts, so it is advisable to anticipate a good
alignment and parallelism of such pipe.
It is also recommended to use filters in the pipe to extend lifecycle of the valve.

Genebre Building. Av. de Joan Carles I, 46-48
08908 L'Hospitalet de Llobregat. Barcelona (Spain)
[email protected] - www.genebre.es
GENEBRE S.A.
LAST UPDATE: 30/03/2020 UPDATE NUMBER: 0
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5. Operating instructions
5.1) Usage
Valve materials have to be fully compatible with the fluid circulating through the valve.
Otherwise, valve could be seriously damaged.
The main purpose of pressure reducing valves is to reduce the fluid pressure to optimum
operating values, constantly below the maximum permitted vales so as not to damage
installations after the reducing valve.
The pressure reducing valves is recommended for use in liquid or gas with inlet
pressures no higher than 25 bar (not suitable for steam).
The pressure reducing valve is factory regulated with an outlet pressure value of 3 bar.
5.2) Setting instructions
The pressure reducer has been preset at 3 bar of outlet pressure. If is necessary to
modify it, follow next instructions:
a. Check that hydraulic circuit is completely full and close all devices (valves, taps,
etc.).
b. Loosen the nut (part.15).
c. To reduce the outlet pressure, loosen the adjusting screw (part.16) rotating
counterclockwise.
d. To increase the outlet pressure, tighten the adjusting screw (part.16) rotating
clockwise.
e. In order to simplify this operation, connect a pressure gauge replacing the plug
(part.4), which indicates outlet pressure.
f. When you get the desired outlet, pressure tighten the nut (part 15).
5.3) Cavitation Chart
Advice: If you want to reduce the outlet pressure with respect to the inlet pressure more
than the recommended by the diagram cavitation (zona3), we recommend installing a
second pressure reducing valve in serially to divide the pressure drop in two separate
falls within the zona3 (optimum operating area).

Genebre Building. Av. de Joan Carles I, 46-48
08908 L'Hospitalet de Llobregat. Barcelona (Spain)
[email protected] - www.genebre.es
GENEBRE S.A.
LAST UPDATE: 30/03/2020 UPDATE NUMBER: 0
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Zona 1: Cavitation zone: Avoid working within this area.
Zona 2: Critical zone: It is recommended not working within this pressure range.
Zona 3: Working zone: The pressure reducing valve works in good conditions without
cavitation.
6. Maintenance instructions
Frequency, place and process of maintenance will be determined by the user by taking
into account usage of the product.
7. Reparation instructions
These types of valves, due to their assembling specifications are not worth repairing,
because most of the times are simply not cost-effective, so we recommend to directly
replace them.
Before disassembling the pipe's valve to clean or replace it, make sure that line
has been closed and depressurized because a bad operational procedure could
cause a serious accident to staff and installation system

Genebre Building. Av. de Joan Carles I, 46-48
08908 L'Hospitalet de Llobregat. Barcelona (Spain)
[email protected] - www.genebre.es
GENEBRE S.A.
LAST UPDATE: 30/03/2020 UPDATE NUMBER: 0
8
8. Hygiene and Safety Instructions
8.1) Fluid passing through a valve or accessory can be corrosive, toxic, flammable or
pollutant. When operating valves, you must follow the security instructions and it is
recommended to use personal protection gadgets:
1) Protect your eyes.
2) Wear gloves and appropriate working clothes.
3) Wear safety footwear.
4) Wear a helmet.
5) Have running water at hand.
6) To operate flammable fluids, make sure you have an extinguisher at hand.
8.2) Before removing a valve from a pipe, check always if the line is completely
drained and depressurized.
8.3) Any valve being used by toxic services department needs to obtain a cleanliness
certificate before being operated.
Before installing new valve, check if it meets the requirements of the valve
being replaced