BIFFI RPS Series Manuale utente
Installation, Operation and Maintenance Manual
MAN 573 Rev. 8
July 2020
Biffi RPS
Spring-Return Pneumatic Actuator
Copyright © Bif. The information in this document is subject to change without notice. Updated data sheets can be obtained from our website www.bif.it or from your nearest Bif Center:
Bif Italia s.r.l. - Strada Bif 165, 29017 Fiorenzuola d'Arda (PC) – Italy PH: +39 0523 944 411 – bif_italia@bif.it
July 2020
Installation, Operation and Maintenance Manual
MAN 573 Rev. 8
Revision Details
Revision Details
Revision Details
Rev. Date Description Prepared Checked Approved
8 July 2020 General update (Migration to new template)
7November 2019 Added Sectional drawings for
MSJ-MHW and DMHW Ermanni Oreci Vigliano
6 March 2018 Updated Data-plate Ermanni Oreci Vigliano
5April 2016 Updated Applicable Regulation (Section 1.1.1) Ermanni Oreci Vigliano
4 April 2014 Updated Section 1.4 Ermanni Stoto Vigliano
3June 2012 Updated Section 1.4 and Section 5.4 Ermanni Stoto Vigliano
i
Installation, Operation and Maintenance Manual
MAN 573 Rev. 8
Table of Contents
July 2020
Table of Contents
Section 1: General Warnings
1.1 Generalities................................................................................................... 1
1.1.1 Applicable Regulation ........................................................................ 1
1.1.2 Terms and Conditions......................................................................... 1
1.2 Identication Plate ........................................................................................ 2
1.3 Introducing the Actuator............................................................................... 2
1.4 Data Sheet .................................................................................................... 5
Section 2: Installation
2.1 Checks upon Actuator Receipt ...................................................................... 6
2.2 Actuator Handling......................................................................................... 6
2.3 Storage ......................................................................................................... 8
2.4 Actuator Assembly on the Valve.................................................................... 9
2.4.1 Types of Assembly.............................................................................. 9
2.4.2 Assembly procedure......................................................................... 11
2.5 Pneumatic Connections .............................................................................. 12
2.6 Electrical Connections (If any) ..................................................................... 12
2.7 Commissioning........................................................................................... 13
Section 3: Operation and Use
3.1 Operation Description................................................................................. 14
3.2 Residual Risks.............................................................................................. 16
3.3 Operations.................................................................................................. 16
3.4 Calibration of the angular stroke ................................................................. 17
3.5 Calibration of Micro-switches (If Foreseen).................................................. 19
3.6 Calibration of the Operation Time............................................................... 19
Section 4: Operational Tests and Inspections
Operational Tests and Inspections......................................................................... 20
Section 5: Maintenance
5.1 Periodic maintenance.................................................................................. 21
5.2 Extraordinary Maintenance ......................................................................... 22
5.2.1 Replacement of Cylinder Seals .......................................................... 22
5.3 Lubrication of Mechanism........................................................................... 26
5.4 Dismantling and Demolition ....................................................................... 27
Table of Contents
ii
Table of Contents
July 2020
Installation, Operation and Maintenance Manual
MAN 573 Rev. 8
Section 6: Troubleshooting
6.1 Failure or Breakdown Research.................................................................... 28
Section 7: Layouts
7.1 Spare Parts Order........................................................................................ 29
7.2 Parts List for Maintenance and Replacing Procedure.................................... 30
Section 8: Date Report for Maintenance Operations
Date Report for Maintenance Operations .............................................................. 35
Table of Contents
Installation, Operation and Maintenance Manual
MAN 573 Rev. 8 July 2020
Section 1: General Warnings
1.1 Generalities
Bif Italia s.r.l. actuators are conceived, manufactured and controlled according to the Quality
Control System in compliance with EN-ISO 9001 international regulation.
1.1.1 Applicable Regulation
EN ISO 12100:2010: Safety of machinery – General principles for design –
Risk assessment and risk reduction
2006/42/EC: Machine directive
2014/68/EU: Directive for pressure PED equipment
2014/35/EU: Directive for low voltage equipment
2014/30/EU: Directive for the electromagnetic compatibility
2014/34/EU: Directive and safety instructions for use in hazardous area
1.1.2 Terms and Conditions
Bif Italia s.r.l. guarantees that all the items produced are free of defects in workmanship and
manufacturing materials and meet relevant current specications, provided they are installed, used
and serviced according to the instructions contained in the present manual. The warranty can last
either one year from the date of installation by the initial user of the product, or eighteen months
from the date of shipment to the initial user, depending on which event occurs rst. All detailed
warranty conditions are specied in the documentation forwarded together with the product.
This warranty does not cover special products or components not warranted by subcontractors, or
materials that were used or installed improperly or were modied or repaired by unauthorized staff.
In the event that a fault condition be caused by improper installation, maintenance or use, or by
irregular working conditions, the repairs will be charged according to applicable fees.
The warranty and Bif Italia s.r.l. liability shall lapse in the event that any modication or
tampering whatsoever be performed on the actuator.
NOTICE
Bif Italia s.r.l. pays the highest attention to collecting and verifying the documentation contained in
this user manual. However Bif Italia s.r.l. is not liable for any mistakes contained in this manual, for
damage or accidents due to the use of the latter. The information contained is of exclusive reserved
ownership of Bif Italia s.r.l. and may be modied without prior notice. All rights reserved.
NOTICE
The 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.
General Warnings 1
Section 1: General Warnings
July 2020
Installation, Operation and Maintenance Manual
MAN 573 Rev. 8
1.2 Identication Plate
! WARNING
It is forbidden to modify the information and the marks without previous written authorization
by Bif Italia s.r.l.
The plate fastened on the actuator contains the following information (see Figure 1).
Figure 1 Data Plate
1.3 Introducing the Actuator
RPS actuators are pneumatic low-pressure Spring-Return, suitable for any quarter-turn application
such as ball, plug, buttery valves or dampers, in both ON-OFF and modulating heavy-duty service.
The actuator is made up of a rack and pinion mechanism, which transforms the linear movement
of the pneumatic cylinder, in one direction, and of the spring, in the opposite direction, into the
rotary movement for the valve operation. An adjustable bronze sliding block supports the
transverse force exerted on the rack by its engagement with the pinion. The rack is nitride
for ensure the minimal friction.
The spring module incorporates one or two springs in series, depending on the model, and is fully
encapsulated. This assures safety to personnel and ease of assembly. External travel stops allow
precise angular stroke adjustment between 80° and 100°.
Totally enclosed, weatherproof housing, made of nodular cast iron for maximum strength and
suitable for use in hostile environments.
The mounting ange is identical on both (upper and lower) faces of the housing; the shaft output
drives have the same dimensions but is positioned at 90°. This allows the actuator to be used as
spring to close or spring to open without modication.
The actuator is assembled onto the valve by connecting the actuator housing ange to the valve
ange by a spool piece and the actuator shaft to the valve stem by a stem extension.
Actuator manual emergency operation in opposition to the spring action, is performed by rotating
the jackscrew by a wrench or by a hand-wheel (available on request).
The mounting ange, on the housing top, can be utilised for the assembly of limit switches, position
transmitter, positioner etc., which are actuated by the actuator output shaft.
General Warnings2
Section 1: General Warnings
Installation, Operation and Maintenance Manual
MAN 573 Rev. 8 July 2020
Figure 2
The actuator housing is provided, on the front face and in the back face (optional), with threaded
holes for the assembly of accessories (control panels, air storage tank, etc.).
RP 13-14-15 49,5 49,5 M8 10 16 21 23 66 30 2,7 140 40 M6 4
RP 30 72,1 72,1 M10 12 22 29 25 92 32 2,7 164 50 M6 4
RP 60 88,4 88,4 M12 15 28 37 34 112 42 3,0 204 60 M6 4
RP 120 99,0 99,0 M16 23 37 49 45 132 55 3,0 270 75 M6 4
Both the actuator anges can be used for valve coupling or the mounting of ancillary equipment
(positioner, limit switch box, etc.).
* UNI 3221
Actuator
Model A± 0,2 B± 0,2 ØC D ØE ØF G ØH K J L ØM ØN* R
0
-0,1 0
-0,5 0
-0,2 +0,1
0
View from X View from Y
№4 threaded
holes
№4 threaded
holes
Threaded hole ØN
Joint detail
Threaded hole ØN
X
Y
A
R
R
R
R
A
KK
=
=
=
=
=
=
=
=
=
=
=
=
B
12
4
B
L
JJ
G
D
ØM
ØF
M6
ØE
ØH
ØC ØC
ØE
+ 0,5
0
Table 1. Dimensions in mm
General Warnings 3
Section 1: General Warnings
July 2020
Installation, Operation and Maintenance Manual
MAN 573 Rev. 8
A±0.2
A ±0.2 B
B ±0.2
M ±0.2
K L
GH
FF
D
ØE
ØE
Front side
Top view
Back side
№4 threaded holes
№4 threaded holes (optional)
Figure 3
Model A B C D ØE F G H K L M
15 55 110 12.5 43 M8 14 17 98 114 67 181
30 70 125 15 56 M10 16 35 120 136 80 216
60 88 160 16 68 M12 19 35 150 160 105 265
120 124 190 18 82 M16 23 50 183 210 124 334
Table 2. Dimensions in mm
The expected lifetime of actuator is approximately 25 years.
General Warnings4
Section 1: General Warnings
Installation, Operation and Maintenance Manual
MAN 573 Rev. 8 July 2020
1.4 Data Sheet
Supply uid: Air, Nitrogen or sweet gas
Operating temperature: Standard: from –30 °C to +100 °C
Optional: from –60 °C to +140 °C
Design pressure: 12 bar maximum
Supply pressure: Please refer to technical document: “actuator data sheet”
Output torque: up to 3,700 Nm
General Warnings 5
Section 1: General Warnings
July 2020
Installation, Operation and Maintenance Manual
MAN 573 Rev. 8
Section 2: Installation
2.1 Checks upon Actuator Receipt
• Check that the model, the serial number of the actuator and the technical data reported on
the identication plate correspond with those of order conrmation (Section 1.2).
• Check that the actuator is equipped with the ttings as provided for by order conrmation.
• Check that the actuator was not damaged during transportation: if necessary renovate the
painting according to the specication reported on the order conrmation.
• If the actuator is received already assembled with the valve, its settings have already been
made at the factory.
• If the actuator is delivered separately from the valve, it is necessary to check, and, if
required, to adjust, the settings of the mechanical stops (Section 3.4) and of micro-switches
(if any) (Section 3.5).
2.2 Actuator Handling
A. Valve stem with vertical axis:
NOTICE
The lifting and handling should be made by qualied staff and in compliance with the laws and
provisions in force.
! WARNING
The fastening points are appropriate for the lifting of the actuator alone and not for the
valve + actuator assembly. Avoid that during the handling, the actuator passes above the staff.
The actuator should be handled with appropriate lifting means. The weight of the actuator is
reported on the delivery bill.
For a correct lifting procedure, please refer to following Figures :
Figure 4
1 - 2 = Lifting eyelets
Installation
6
Section 2: Installation
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