IMI BR-08SSH User manual

BR - BOOSTER RELAY
INSTRUCTION MANUAL 2074

____________________________________________________________________________________
STI S.r.l. –Via Dei Caravaggi 15, 24040 Levate (BG) –ITALIA www.imi-critical.com
Manual 2074, rev.00 02/2019 –BR i
01/02/2019
00
Issue
I. Zucchi
F. Tondolo
Date
Revision
Description
Compiled
Approved
STI S.r.l has taken every care in collecting and verifying the documentation contained in this Instruction
Manual. The information herein contained are reserved property of STI S.r.l

____________________________________________________________________________________
STI S.r.l. –Via Dei Caravaggi 15, 24040 Levate (BG) –ITALIA www.imi-critical.com
Manual 2074, rev.00 02/2019 –BR ii
INDEX
1GENERAL INFORMATION .................................................................................................................. 1
1.1 GENERAL WARNINGS........................................................................................................................ 1
1.2 GENERALITIES.................................................................................................................................. 1
1.3 MANUFACTURER............................................................................................................................... 1
1.4 TERMS AND CONDITIONS................................................................................................................... 1
1.5 MANUFACTURER’S LIABILITY ............................................................................................................. 1
1.6 APPLICABLE STANDARDS AND DIRECTIVES ........................................................................................ 2
1.7 SYMBOLOGY USED........................................................................................................................... 2
2DEVICE DESCRIPTION ....................................................................................................................... 3
2.1 GENERAL DESCRIPTION.................................................................................................................... 3
2.2 BOOSTER CODING DESCRIPTION....................................................................................................... 4
3TECHNICAL DATA............................................................................................................................... 5
4LABEL................................................................................................................................................... 6
5INSTALLATION .................................................................................................................................... 7
5.1 TRANSPORT ..................................................................................................................................... 7
5.2 RECEPTION...................................................................................................................................... 7
5.3 STORAGE......................................................................................................................................... 7
5.4 REQUIREMENTS OF STABILITY........................................................................................................... 7
5.5 DOCUMENTS AND DIMENSIONAL DRAWINGS........................................................................................ 7
5.6 INSTALLATION................................................................................................................................... 8
5.7 DISASSEMBLING ............................................................................................................................. 12
6OPERATION AND USE...................................................................................................................... 13
6.1 OPERATION DESCRIPTION ............................................................................................................... 13
6.2 INTENDED USE................................................................................................................................ 20
6.3 REASONABLY FORESEEABLE MISUSE ............................................................................................... 20
6.4 OPERATING LIMITS.......................................................................................................................... 20
6.5 RESIDUAL RISKS ............................................................................................................................ 21
7INSTRUCTIONS FOR THE OPERATOR ........................................................................................... 21
8MAINTENANCE.................................................................................................................................. 22
8.1 PERIODIC INSPECTIONS .................................................................................................................. 22
8.2 SPECIAL MAINTENANCE................................................................................................................... 22
8.3 REPAIRS ........................................................................................................................................ 22
8.4 REASSEMBLING.............................................................................................................................. 22
8.5 MECHANISM LUBRICATION............................................................................................................... 22
9PARTS LIST GENERAL ASSEMBLY................................................................................................ 23
9.1 BR ASSEMBLY –BR-08SSH00 /BR-08SSS00 /BR-08SSL00....................................................... 23
9.2 BR ASSEMBLY –BR-08SSH01 /BR-08SSS01 /BR-08SSL01....................................................... 24
10 TROUBLESHOOTING .................................................................................................................... 25
11 SPARE PARTS ............................................................................................................................... 25
12 DECOMMISSIONING...................................................................................................................... 26

____________________________________________________________________________________
STI S.r.l. –Via Dei Caravaggi 15, 24040 Levate (BG) –ITALIA www.imi-critical.com
Manual 2074, rev.00 02/2019 –BR iii

____________________________________________________________________________________
STI S.r.l. –Via Dei Caravaggi 15, 24040 Levate (BG) –ITALIA www.imi-critical.com
Manual 2074, rev.00 02/2019 - BR 1
1 GENERAL INFORMATION
1.1 General Warnings
Important
This Instruction Manual is an integral part of the machine, it should be carefully
read before carrying out any operation and it should be kept for future references.
The operators shall adopt the safety precautions required by the country where
the product is installed.
This Instruction Manual is realized in accordance with the Directive 2006/42/CE.
1.2 Generalities
STI S.r.l. accessories are conceived, manufactured and controlled according to the Quality Control System
in compliance with EN ISO 9001 International Standard.
1.3 Manufacturer
With respect to Machinery Directive 2006/42/EC, the Manufacturer of the described BR Booster is STI S.r.l.
as specified on the label.
STI S.r.l. Via Dei Caravaggi 15
24040 Levate (BG) Italy
Tel. [phone]
Fax [phone]
[e-mail]
1.4 Terms and conditions
STI S.r.l. guarantees each single product to be free from defects and to conform to current goods
specifications. The warranty period is one year from the date of installation by the first user, or eighteen
months from the date of shipment to the first user, whichever occurs first.
The warranty does not cover special products or components not covered by warranty in their turn by
subcontractors. No warranty is given for products which have been subject to improper storage, improper
installation, misuse, corrosion, or which have been modified or repaired by unauthorised personnel: it is not
advisable that customer or end users modify the device characteristics.
1.5 Manufacturer’s Liability
STI S.r.l. declines all liability in the event of:
- use of the BR in contravention of local safety at work legislation;
- incorrect installation, disregard or incorrect application of the instructions provided on the BR label and
in this manual;
- modifications without STI’s authorisation;
- work done on the unit by unqualified or unsuitable persons.

____________________________________________________________________________________
STI S.r.l. –Via Dei Caravaggi 15, 24040 Levate (BG) –ITALIA www.imi-critical.com
Manual 2074, rev.00 02/2019 - BR 2
1.6 Applicable Standards and Directives
-EN ISO 12100:2010
Safety of machinery - General principles for design;
-2006/42/EC
Machinery Directive;
-2014/68/UE
Pressure Equipment Directive (PED);
1.7 Symbology Used
1.7.1 Signs of warning
Be careful where these symbols are shown, they indicate a potentially hazardous situation and they
warn that if the steps are not properly performed, MAY RESULT CAUSING serious injury, death or
long-term risks to the health of exposed persons.
1.7.2 Sings of obligation
General
obligation (with
the possible
supplementary
signboard)
Obligation to
wear
protective
clothing.
Obligation to
wear
protective
footwear.
Obligation to
wear a helmet.
Obligation to
protect your
eyes.
Obligation to
protect your
hearing.
GENERAL DANGER
DANGER POWER SUPPLY
CRUSHING HAZARD

____________________________________________________________________________________
STI S.r.l. –Via Dei Caravaggi 15, 24040 Levate (BG) –ITALIA www.imi-critical.com
Manual 2074, rev.00 02/2019 - BR 3
2 DEVICE DESCRIPTION
2.1 General Description
The Booster Relay BR is a flow amplifier that allows to increase the actuator stroking time by increasing the
fluid mass flow to the actuator or from the actuator. Designed to meet high control applications, the BR
booster contains an integral stabilizing bypass valve controlled by a screwdriver adjustment. The bypass
valve screwdriver creates a pressure drop between the pilot and the actuator connection depending on its
adjustment and the working fluid flow rate.
Figure 1 –Booster Relay BR
Bypass valve

____________________________________________________________________________________
STI S.r.l. –Via Dei Caravaggi 15, 24040 Levate (BG) –ITALIA www.imi-critical.com
Manual 2074, rev.00 02/2019 - BR 4
2.2 Booster Coding Description
BR
-
Size
08
½”
Material
SS
Stainless Steel 316
Temperature range
H
-20°C / +85°C
S
-20°C / +70°C
L
-40°C / +70°C
Mounting Kit
00
Mounted on fittings
01
Mounted on plate

____________________________________________________________________________________
STI S.r.l. –Via Dei Caravaggi 15, 24040 Levate (BG) –ITALIA www.imi-critical.com
Manual 2074, rev.00 02/2019 - BR 5
3 TECHNICAL DATA
Technical features (*)
BR Model
BR-08SSH
BR-08SSS
BR-08SSL
Body Material
Stainless steel 316
Stainless steel 316
Stainless steel 316
Booster Size
½ “
½ “
½ “
Media
Instrument air
Natural gas
Instrument air
Natural gas
Instrument air
Natural gas
Supply connection
(S)
½” NPT Female
½” NPT Female
½” NPT Female
User connection
(U)
½” NPT Female
½” NPT Female
½” NPT Female
Exhaust connection
(E)
¾”NPT Male
¾”NPT Male
¾”NPT Male
Pilot/Signal connection
(P)
¼” NPT Female
¼” NPT Female
¼” NPT Female
Cv max @6 bar
(S→U)
3,80
3,80
3,80
Cv max @6 bar
(U→E)
4
4
4
Testing temperature
range
-20/+85 °C
-20/+70 °C
-40/+70 °C
Operating pressure
range
3 bar / 7 bar
3 bar / 7 bar
3 bar / 7 bar
Max supply pressure
10,4 bar
10,4 bar
10,4 bar
Pressure containment
Up to 15 bar
Up to 15 bar
Up to 15 bar
Expected lifetime
@20°C
100000 cycles
100000 cycles
100000 cycles
(*) All the models are PED 2014/68/UE and ATEX 2014/34/UE (see label for ATEX details) certified.

____________________________________________________________________________________
STI S.r.l. –Via Dei Caravaggi 15, 24040 Levate (BG) –ITALIA www.imi-critical.com
Manual 2074, rev.00 02/2019 - BR 6
4 LABEL
The label attached on the BR contains the info related to ATEX certification. This label must be attached on
the booster when the BR is sold alone. When the BR is sold mounted on the actuator or as spare part, the
label is not required.
It is forbidden to modify the information and the marks without previous written authorization by STI S.r.l.
Figure 2 –Booster Relay label