BIFFI TPS Series Installation, Operation And Maintenance Manual

Quarter-turn pneumatic compact pneumatic actuator – single-acting actuator

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Installation, Operation and Maintenance Manual

MAN 714 Rev. 0

November 2024

Biffi TPS Series - Quarter-Turn Pneumatic

Compact Pneumatic Actuator – Single-Acting Actuator

www.biffi.it or from your nearest Biffi Center: Biffi Italia s.r.l. - Strada Biffi 165, 29017 Fiorenzuola d' A rda (PC) – Italy PH: +39 0523 944 411 – biffi_italia@biffi.it

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Summary of Contents for BIFFI TPS Series

Page 1 Copyright © Biffi. The information in this document is subject to change without notice. Updated installation, operation and maintenance manuals can be obtained from our website www.biffi.it or from your nearest Biffi Center: Biffi Italia s.r.l. - Strada Biffi 165, 29017 Fiorenzuola d’ A rda (PC) – Italy PH: +39 0523 944 411 – biffi_italia@biffi.it...
Page 2 Notes Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 Before carrying out any operation with the actuator or any maintenance intervention, all the instructions, procedures and warnings described in this Installation, Operation and Maintenance Manual (IOM) must be read and understood. Furthermore, please refer to the confirmation documentation for further information depending on the configuration of the pneumatic actuator referred to in the present IOM.
Page 3 Installation, Operation and Maintenance Manual Table of Contents MAN 714 Rev. 0 November 2024 Table of Contents Section 1: Introduction Purpose of This Manual ..................1 Who Should Use This Manual ................1 Safe Keeping of This Manual ................2 Supplements and Revisions ................
Page 4 Electrical Connections (If Foreseen) ..........55 Section 7: Commissioning and Adjustments Inspections Prior to Commissioning ...............56 Calibrating the Angular Stroke................57 Section 8: Biffi Limit Switch Box (If Fitted) Calibration of Biffi Limit Switches (If Fitted) ............62 8.1.1 Limit Switch Calibration Procedure ..........63 8.1.2...
Page 5 Installation, Operation and Maintenance Manual Table of Contents MAN 714 Rev. 0 November 2024 Section 10: Supplementary Maintenance 10.1 General Information About Supplementary Maintenance ......69 10.2 Technical Guidelines for Replacing the Pneumatic Cylinder Seals ...71 10.2.1 General Description ................71 10.2.2 Partial or Total Seal Replacement ............76 10.2.3 Disassembling the Pneumatic Cylinder ..........78...
Page 6 Notes Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 This page is intentionally left blank...
Page 7 Biffi Italia s.r.l. is the owner of intellectual property rights with regard to the content hereof, which can be subject to subsequent modifications without prior notice.
Page 8 Section 1: Introduction Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 Safe Keeping of This Manual For a proper safekeeping, please keep the manual in a protected and dry place, sheltered from dust and sunbeams. A copy of the manual must always be available to hand for both operator and maintenance technician.
Page 9 Installation, Operation and Maintenance Manual Section 1: Introduction MAN 714 Rev. 0 November 2024 Symbols Used in the Text The graphical symbols used in this manual to point out precautions or warnings that must be observed, are listed below: NOTICE It is absolutely MANDATORY to carry out the actions indicated by this sign.
Page 10 +39 0523 94.18.85 Email: biffi_italia@biffi.it Website: www.biffi.it Strada Biffi n. 165 29017 Fiorenzuola d’ A rda (PC) Italy Member Company under the management and coordination of Emerson Electric Co. (USA) Cap. Soc. € 1.820.000 i. v. – Registro Imprese di Piacenza/Cod. Fisc./P.
Page 11 Installation You may contact Biffi Italia s.r.l. After Sales Service: Biffi Italia s.r.l. - After Sales Service - Strada Biffi 165 – 29017 Fiorenzuola d’ A rda (PC), Italy Phone: +39 0523 94 45 23 Fax: +39 0523 94 18 85 E-mail: biffiservice@emerson.com...
Page 12 Section 2: General Information Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 Intended Use The actuator is designed to be used by adequately instructed and trained technical personnel for professional applications only. The machine must only be used as intended by the manufacturer, namely in accordance with the definition given under the heading “Actuator applications”, with the relevant details regarding performance, features and restrictions, listed in Section 3: Technical Description, and with the procedures for use, adjustment,...
Page 13 CAUTION • ATMOSPHERE AT RISK OF FIRE It is FORBIDDEN to use TPS series actuators in environments at risk of fire and not equipped with suitable systems for the prevention and extinguishing of fires. NOTE:...
Page 14 2.10 Warranty Biffi Italia s.r.l. guarantees that all the items produced are free of defects in workmanship and manufacturing materials and meet relevant current specifications, 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 first.
Page 15 November 2024 2.11 Regulatory Reference Framework Biffi Italia s.r.l. actuators are designed, manufactured and controlled according to the Quality Control System in compliance with EN ISO 9001 International Standard. Biffi Italia s.r.l. actuators, subject matter of the present document, are designed,...
Page 16 The purchaser must make sure the plate is never removed from the actuator and the featured data are always clearly legible. CAUTION It is forbidden to modify the information and the marks without previous written authorization by Biffi Italia s.r.l. Technical Description...
Page 17 Installation, Operation and Maintenance Manual Section 3: Technical Description MAN 714 Rev. 0 November 2024 The rating plate shown in Figure 1 complies with the directives listed in Section 2.11 and features clearly legible and ineffaceable data, namely: • In the upper part: —...
Page 18 Section 3: Technical Description Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 NOTE: The meaning of the marking pursuant to Directive 94/9/EC is given below: Group II (surface) Category 2 (zone 1) Explosive atmosphere with the presence of gases, vapors or mists Explosive atmosphere with the presence of dusts Constructional safety according to EN 13463-5...
Page 19 WARNING Uses different from or additional to those provided in this IOM are not permitted and Biffi Italia s.r.l. will not be liable for any damages arising from non-intended uses. WARNING All maintenance interventions must be performed according to the instructions contained in the IOM: no mechanical modification is permitted without prior written authorization from Biffi Italia s.r.l.
Page 20 • Vibrations and/or strange noises. In that case, stop the actuator, identify the causes and call the manufacturer. However, residual risks can arise while the TPS series actuator is running normally if: • The provided maintenance schedule is not observed;...
Page 21 To connect the output drive to the valve stem (refer to Section 3.14) NOTE: Connection to the valve stem is done by means of a bush insert or a sleeve machined internally (by Biffi Italia s.r.l. or by the customer) to fit the geometry of the valve stem. Technical Description...
Page 22 The cylinder is provided also with the interface for the pneumatic supply of the cylinder lower chamber, which is to be used ONLY for double acting applications. In TPS series models, this interface is plugged (threaded, weatherproof plug). • To fix the control system in place (refer to Section 3.18).
Page 23 15000 30000 60000 120000 1000 160000 1100 300000 1300 NOTICE Biffi Italia s.r.l. reserves the right to make changes without notice with respect to the data. For updated information, please refer to Biffi Italia s.r.l. website, catalogues, etc. Technical Description...
Page 24 As already mentioned in Section 3.1, the present manual DOES NOT contain any instruction as regards the use or maintenance of any of the accessories installed on TPS series actuators, for which you are kindly requested to refer to the documentation relative to the order acknowledgement (of which this manual is an integral part).
Page 25 Installation, Operation and Maintenance Manual Section 3: Technical Description MAN 714 Rev. 0 November 2024 3.10 Reading and Understanding the Product ID Code The meaning of the actuator model code featured on the rating plate (Refer to Section 3.2) is explained in the table below: Table 6.
Page 26 Section 3: Technical Description Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 3.11 Main Components and Materials 3.11.1 TPS 0.A Actuator This section contains a list of the main components of TPS 0.A actuator and the type of material used in their manufacture.
Page 27 Installation, Operation and Maintenance Manual Section 3: Technical Description MAN 714 Rev. 0 November 2024 3.11.2 TPS 0.1/0.3/0.9/1.5/3 Actuators This section contains a list of the main components of TPS 0.1/0.3/0.9/1.5/3 actuators and the type of material used in their manufacture. Figure 4.
Page 28 Section 3: Technical Description Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 3.11.3 TPS 6 Actuator This section contains a list of the main components of TPS 6 actuators and the type of material used in their manufacture. Figure 5.
Page 29 Installation, Operation and Maintenance Manual Section 3: Technical Description MAN 714 Rev. 0 November 2024 3.11.4 TPS 14/18/32 Actuators This section contains a list of the main components of TPS 14/18/32 actuators and the type of material used in their manufacture. Figure 6.
Page 30 The safety valve can be supplied by Biffi Italia s.r.l. inside the control panel. 2. Refer to the technical documentation (namely to the hydraulic diagrams) in order to verify the presence of an overpressure valve that limits the pressurization of the hydraulic circuit above the maximum allowable pressure shown in Table 11.
Page 31 Installation, Operation and Maintenance Manual Section 3: Technical Description MAN 714 Rev. 0 November 2024 3.12.2 Overall Dimensions, Weights and Estimated Center of Gravity Position Figure 7. TPS Actuator Dimensions Ø C Technical Description...
Page 32 Section 3: Technical Description Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 Table 12. Technical Data for Each Model Dimensions (mm) Weight (kg) Model of Ø C Actuator xx = RP/SY; k = 1/2/3 RP1/SY1 RP2/SY2 RP3/SY3 TPS 0.A xxk 175 CL/OP TPS 0.1 xxk 235 CL/OP TPS 0.1 xxk 280 CL/OP...
Page 33 MAN 714 Rev. 0 November 2024 3.13 Valve Coupling Interface (Top Mounting) TPS series actuators allow direct coupling to the valve (without having to use a stub). The standard options for valve coupling interfaces available for TPS series actuators are listed below: NOTE:...
Page 34 Section 3: Technical Description Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 In short, TPS series actuators can be provided with three different valve coupling interfaces, as shown in Table 13: Table 13. Types of Valve Interfaces...
Page 35 Installation, Operation and Maintenance Manual Section 3: Technical Description MAN 714 Rev. 0 November 2024 STANDARD ISO 5211 INTERFACE (extract from document SCN 7976) Figure 8. Standard ISO 5211 Interface DRIVE SLEEVE Ød2 H8 Ød4 Ød3 ±0.2 Ød1 max REFERENCE PIN N.
Page 36 Section 3: Technical Description Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 CUSTOM ISO 5211 INTERFACE (extract from document SCN 7977) Figure 9. Custom ISO 5211 Interface DRIVE SLEEVE Ød2 H8 Ød4 Ød3 ±0.2 Ød1 max REFERENCE PIN N.
Page 37 Installation, Operation and Maintenance Manual Section 3: Technical Description MAN 714 Rev. 0 November 2024 CUSTOM ALGA/ALGAS INTERCHANGEABLE INTERFACE (extract from document SCN 7975) Figure 10. ALGA/ALGAS Interchangeable Interface DRIVE SLEEVE Ød2 H8 Ød4 Ød3 ±0.2 Ød1 max REFERENCE PIN TP 0.A, 0.1, 0.3, 0.9, 1.5, 3, 6 N.
Page 38 Documents SCN 7975, SCN 7976 and SCN 7977 also contain geometrical data as regards the output drive interface (actuator rotary element). Since there are no standard geometrical data regarding the valve stem, Biffi Italia s.r.l. provides a bush insert or a sleeve, suitably machined, which allows a rigid connection between actuator and valve.
Page 39 Figure 11. Position of Pneumatic Interfaces Pneumatic interface supplying the upper chamber of the pneumatic cylinder. This interface is used: • For single-acting applications (TPS series models), in both configurations: — OP (spring to open) — CL (spring to close) •...
Page 40 Position of Pneumatic Interfaces 1 and 2 Pneumatic interface supplying the upper chamber of the pneumatic cylinder. This interface is used: • For single-acting applications (TPS series models), in both configurations: — OP (spring to open) — CL (spring to close) •...
Page 41 Position of Pneumatic Interfaces 1 and 2 Pneumatic interface supplying the upper chamber of the pneumatic cylinder. This interface is used: • For single-acting applications (TPS series models), in both configurations: — OP (spring to open) — CL (spring to close) •...
Page 42 Section 3: Technical Description Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 The pneumatic interfaces fitted on each TPS series model are listed in Table 17 below. Table 17. Pneumatic Interfaces and Air Consumption Pneumatic Interface 1...
Page 43 MAN 714 Rev. 0 November 2024 3.18 Other Interfaces, Devices and Accessories Figure 14 shows the typical position on a generic model of the TPS series of the following types of interfaces: Figure 14. Position of Interfaces, Devices and Accessories Lifting lugs Used for vertical lifting;...
Page 44 NOTE: Any indicator device requested by the customer can be installed by means of a customizable coupling and flange (both provided by Biffi Italia s.r.l.), for which you can refer to the documentation relative to the order acknowledgement. Technical Description...
Page 45 Board the Actuator NOTICE To prevent degradation of the features of TPS series actuators, specified by the marking pursuant to Directive 94/9/EC (ATEX) (refer to Figure 1), only equipment having the same type of marking or superior features are suitable for installation on board the actuator.
Page 46 NOTE: Biffi Italia s.r.l. shall in no way be liable for any damages or accidents to persons or property resulting from failure to comply with: •...
Page 47 Installation, Operation and Maintenance Manual Section 4: Health and Safety Provisions MAN 714 Rev. 0 November 2024 Duties of the Safety Officer The duties of the safety officer are basically the following: CIRCULATION OF SAFETY INFORMATION The information included in this manual must be disclosed to all personnel in charge of: •...
Page 48 Section 4: Health and Safety Provisions Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 Residual Risks Residual risks refer to those hazards that are identified, but cannot be completely eliminated through design, mechanical, electrical or functional solutions, because they are intrinsically related to the nature and application of the machine.
Page 49 The type of PPE to be used is decided by the Safety Officer appointed by the employer. Nonetheless, in the table below are listed some of the PPE that Biffi Italia s.r.l. suggests to have always available because their usage represents the minimum safety level that must be guaranteed to all personnel interacting with the actuator during any transport, installation, processing, maintenance and disposal stage.
Page 50 5.1.1 General Information NOTE: The actuator is packed and transported by Biffi Italia s.r.l. TPS actuators can be transported either already assembled to the valve or still separated from it therefore, depending on the type of conveyance, different provisions will have to be observed, as described below:...
Page 51 Installation, Operation and Maintenance Manual Section 5: Transport and Handling MAN 714 Rev. 0 November 2024 Lifting the Actuator 5.2.1 Lifting Points The actuator is provided with lifting points for lifting and handling it: Rig the slings through the lugs located at the top of the actuator. Lift the actuator (without valve) by keeping it in vertical position.
Page 52 DO NOT DISASSEMBLE TOP OR BOTTOM COVER. SPRING LOADED. POTENTIAL ELECTROSTATIC CHARGE HAZARD BIFFI IS NOT LIABLE FOR ANY PERSONAL INJURY DUE TO INCORRECT USE REFER TO IOM For lifting and moving the actuator, use only hooks fitted with safety latch, like the one shown in Figure 19: Figure 19.
Page 53 Installation, Operation and Maintenance Manual Section 5: Transport and Handling MAN 714 Rev. 0 November 2024 5.2.2 Codes of Practice for Lifting Operations WARNING The lugs/eyes fitted on the actuator are designed to lift exclusively the actuator WITHOUT the valve. NOTE: Lifting and handling operations must be performed by adequately skilled personnel, pursuant to relevant current regulations.
Page 54 5.3.1 General Handling Provisions Biffi Italia s.r.l. has provided purpose designed hooking (lugs and eyes) and lifting points on the actuator (Figure 17). For handling operations by means of overhead lifting equipment, a crane or similar means can be used. If the actuator is packed on a pallet, then a fork lift truck will have to be used.
Page 55 It is recommended to produce photographic evidence of any damage detected. Contact as soon as possible Biffi Italia s.r.l. (refer to Section 2.1). If needed, 0717 restore varnishing according to the specifications featured in the order acknowledgement.
Page 56 Section 6: Receipt and Installation of Actuator Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 In the event that the actuator has to be stored for a long period, the provisions below must be closely observed: • Indoor storage in a sheltered environment: —...
Page 57 Installation, Operation and Maintenance Manual Section 6: Receipt and Installation of Actuator MAN 714 Rev. 0 November 2024 6.4.1 Assembly The actuator can be coupled to the valve via the coupling flange fitted with threaded bores. Figure 20. Example of Coupling Flange •...
Page 58 Section 6: Receipt and Installation of Actuator Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 WARNING Assembly not performed in compliance with the provisions specified in the present document can: • Give rise to severe accidents and cause damage to persons and property •...
Page 59 Refer to the documentation relative to the order acknowledgment to check the materials of the threaded fasteners used to fix the actuator to the valve. If the fasteners are supplied by Biffi Italia s.r.l., apply the torques indicated in Table 20. Receipt and Installation of Actuator...
Page 60 Section 6: Receipt and Installation of Actuator Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 6.4.2 Pneumatic Connections This IOM contains a description of the procedures to be observed in order to perform connection of pneumatic interfaces in the proper way. With regard to a correct functional connection, please refer to the relevant pneumatic diagram specified in the order acknowledgement.
Page 61 Installation, Operation and Maintenance Manual Section 6: Receipt and Installation of Actuator MAN 714 Rev. 0 November 2024 6.4.3 Electrical Connections (If Foreseen) Some actuators might need to be connected to the mains. • PPE to be used during installation procedures: NOTICE The steps described below must be carried out before proceeding to connect the actuator to the electric line:...
Page 62 Section 7: Commissioning and Adjustments Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 Section 7: Commissioning and Adjustments Inspections Prior to Commissioning NOTICE • Make sure the pneumatic line pressure rate corresponds to the value indicated on the actuator rating plate. •...
Page 63 The angular stroke (0° to 90°) of the quarter-turn valve might need to be adjusted owing to misalignment between valve stem and actuator. In all TPS series models, the rotation angle of the output drive can be adjusted by changing by ±5° its end positions (OPEN or CLOSED) within the limit values of -5°...
Page 64 OPEN status. NOTICE For every model of the TPS series, the position of the stoppers, used to adjust the angular stroke of the output drive, is the same for both OP and CL configurations.
Page 65 Installation, Operation and Maintenance Manual Section 7: Commissioning and Adjustments MAN 714 Rev. 0 November 2024 For the sake of clarity, Figure 22 shows a plan view of a section of an actuator base, with the structural details of the stoppers and their operation. Figure 22 also shows the structural detail of the groove orientation for the output drive keys.
Page 66 Section 7: Commissioning and Adjustments Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 For the sake of clarity, Figure 23 shows the structural solution implemented for each stopper, the main components and the type of wrench to be used. Figure 23.
Page 67 Installation, Operation and Maintenance Manual Section 7: Commissioning and Adjustments MAN 714 Rev. 0 November 2024 • Procedure: NOTE: The stoppers can be moved easily when the component identified as “adjustment sector” is not in contact with the stopper. If the actuator is operated by the spring or by the pressurized cylinder, it generates a torque that affects the stopper and prevents it from being moved.
Page 68 MAN 714 Rev. 0 Section 8: Biffi Limit Switch Box (If Fitted) Biffi limit switch box, in its various configurations, is one of the devices that can be installed on TPS series actuator to indicate the position of the actuator.
Page 69 Installation, Operation and Maintenance Manual Section 8: Biffi Limit Switch Box (If Fitted) MAN 714 Rev. 0 November 2024 8.1.1 Limit Switch Calibration Procedure • PPE to be used during installation procedures: • Procedures Disconnect the power supply from the main supply.
Page 70 Section 8: Biffi Limit Switch Box (If Fitted) Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 Loosen the screw of the actuating cam associated to the microswitch and calibrate it accordingly. Refer to Figure 26. Tighten the screw.
Page 71 Installation, Operation and Maintenance Manual Section 8: Biffi Limit Switch Box (If Fitted) MAN 714 Rev. 0 November 2024 8.1.2 Indicator Reset Procedure If the indicator does not point to the correct valve status (“Open” or “Closed”), proceed as described below: Remove the roll pin from the status indicator.
Page 72 November 2024 MAN 714 Rev. 0 Section 9: Routine Maintenance TPS series actuators are designed to run without requiring maintenance for long periods under hard operating and environmental conditions (refer to Section 3.12) as well as in unmanned areas. Despite that, owing to the great number of different conditions in terms of...
Page 73 Installation, Operation and Maintenance Manual Section 9: Routine Maintenance MAN 714 Rev. 0 November 2024 Monitoring and Visual Inspection Activities The interventions recommended to be performed every two years of running time, are listed in the table below: Table 22. Maintenance Summary Table Every 2 Years Type of Intervention...
Page 74 On the basis of the various different conditions in terms of environment, installation and operation under which TPS series actuators can be subject, for the purpose of ensuring machine optimum performance levels, Biffi Italia s.r.l. recommends...
Page 75 Installation, Operation and Maintenance Manual Section 10: Supplementary Maintenance MAN 714 Rev. 0 November 2024 10.1 General Information About Supplementary Maintenance Assigned staff: Qualified mechanical maintenance technician. Qualified and authorized electrical maintenance technician (only if electrical connections are fitted). Number of staff: 2 maintenance technicians PPE: NOTE:...
Page 76 In view of the complexity and residual risks mentioned in the present manual supplementary maintenance interventions can be performed exclusively by personnel provided by Biffi Italia s.r.l. or qualified on a training course provided by Biffi Italia s.r.l. Contact Biffi Italia s.r.l. (refer to Section 2.1) for further information.
Page 77 Technical Guidelines for Replacing the Pneumatic Cylinder Seals 10.2.1 General Description Figure 28 shows a 2D section of a TPS series generic actuator model, with a detailed view of all the pneumatic cylinder seals, identified by alphanumeric indexing. Figure 28. Pneumatic Cylinder Seals...
Page 78 Section 10: Supplementary Maintenance Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 Figure 29 shows a detailed 2D view of the main components, identified by numeric indexing, that have to be disassembled when replacing the pneumatic cylinder seals. Figure 29.
Page 79 Installation, Operation and Maintenance Manual Section 10: Supplementary Maintenance MAN 714 Rev. 0 November 2024 For the purpose of providing a graphical representation of the disassembly (and assembly) sequence, Figure 30, features a detailed 2D exploded view of the main components, identified by numerical indexing, that have to be disassembled when replacing the pneumatic cylinder seals.
Page 80 Section 10: Supplementary Maintenance Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 Figures 31 and 32 and the close-up view of the detail, shows the position of the screws (V3) that fasten the safety ring (8d), which keeps the retaining half rings (8e) in place inside their housing on the stem (9).
Page 81 Installation, Operation and Maintenance Manual Section 10: Supplementary Maintenance MAN 714 Rev. 0 November 2024 Figure 34. Retaining System of the Thrust Flange – Detail of Half Rings Without Safety Ring Figure 34 shows the retaining system of the thrust flange (8c) without the safety ring in place (8d) as well as the direction of movement, identified by the arrows, to make the two retaining half rings (8e) slip out of their housing.
Page 82 (F, Figure 28), besides being a static seal (meaning it is not subject to wear over time), also prevents polluting agents from getting inside the actuator (in TPS Series actuators). Supplementary Maintenance...
Page 83 This method does not include replacement of the head flange seal (F, Figure 28). The plant supervisor will decide whether to proceed with a total or with a partial replacement of the seals. However, Biffi Italia s.r.l. suggests to take into consideration the factors below: •...
Page 84 Section 10: Supplementary Maintenance Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 10.2.3 Disassembling the Pneumatic Cylinder NOTICE Before proceeding with any operation, ensure that: • The electrical power supply for the components on board the actuator is disconnected.
Page 85 Biffi Italia s.r.l. can provide the specific fixture that allows the cylinder to stay locked, by keeping it in place, during disassembly and seal replacement (refer to Section 10.3).
Page 86 Section 10: Supplementary Maintenance Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 NOTICE The above operation must be performed with great care, so as to prevent spoiling the outer varnish coating. Restore any damaged varnish coating. Remove the fixing screws (V1) of the piston – ring assembly (8a, Figure 29). Lift and remove the piston –...
Page 87 Installation, Operation and Maintenance Manual Section 10: Supplementary Maintenance MAN 714 Rev. 0 November 2024 WARNING Risk of serious damage to persons and property. The removal of the screws (V3, Figure 29) affects the functional performance of the retaining system of the thrust flange (8c, Figure 29), which is compressed by means of the spring.
Page 88 Grease and lubricate the seals in their housings and the sliding ring, so as to keep them in place during assembly. NOTE: As regards seal lubrication, Biffi Italia s.r.l. recommends this grease: AGIP-ENI LCX 2/32 for Nitrile-Butadiene Rubber (NBR)/Viton/Neoprene seals; Aeroshell Grease 7 for Fluorosilicon seals.
Page 89 Installation, Operation and Maintenance Manual Section 10: Supplementary Maintenance MAN 714 Rev. 0 November 2024 10.2.5.1 Pneumatic Cylinder Reassembly Procedure Ensure that the seal (F, Figure 28) of the head flange (4, Figures 3, 4, 5 and 6) has been replaced and is properly seated in its housing. Lift the cylinder (5, Figure 29) and put it back in place by performing the operations below: Thoroughly clean the cylinder inner surface and ensure that neither...
Page 90 (5, Figure 29) and be careful not to damage the seal (A, refer to Detail A, Figure 28 Pneumatic cylinder seals for TPS series actuators). The end flange should rest against the cylinder. Tighten the nuts (1) on the tie rods (3) (Figures 29 and 30).
Page 91 • The cylinder outer varnish coating is not spoiled by the grip. Owing to the fact that TPS series actuators can be equipped with various different types of pneumatic cylinders (refer to Table 4), there are various types of fixtures available, to suit the cylinder in use.
Page 92 M10x1.5 M12x1.75 M16x2 M20x2.5 M24x3 M27x3 Table 26. Information Useful for Seal Replacement on Pneumatic Cylinder of TPS Series Actuators Nut and Tie Rod End Flange Piston - Ring (8a, Piston - Plug (8b) Cylinder (5, Figure 29) Type (2, Figure...
Page 93 In case the cylinder motions are extremely frequent, lubrication of the sliding and contact surfaces should be restored with grease. The type of grease used and recommended by Biffi Italia s.r.l. for refilling and lubrication purposes at normal temperature is described below: ENI MU/EP/2 * To be used in standard temperature conditions: -30 to +85 °C...
Page 94 Section 11: Spare Parts Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 Section 11: Spare Parts For information on requesting spare parts, please refer to Section 2.4. Refer to Section 10.2 and Figure 28 for the spare parts that need to be replaced after supplementary maintenance interventions.
Page 95 November 2024 11.1 Pneumatic Cylinder Seals (Material: NBR) Table 27. List of Seal Kits For Pneumatic Cylinder of TPS Series Actuators – NBR Material Actuator Model Spare Part Kit – Material: NBR (Refer to Figure 28) TPD 0.A xxk 175...
Page 96 MAN 714 Rev. 0 11.2 Pneumatic Cylinder Seals (Fluorosilicone material) Table 28. List of Seal Kits For Pneumatic Cylinder of TPS Series Actuators – Fluorosilicone Material Actuator Model Spare Part Kit – Material: NBR (Refer to Figure 28) TPS 0.A xxk 175...
Page 97 TPS actuator. This list has been drawn up on the basis of data processed by Biffi Italia s.r.l. after examining the failures or shortcomings occurred over the years on actuators already installed.
Page 98 Section 13: Dismantling and Tear Down Installation, Operation and Maintenance Manual November 2024 MAN 714 Rev. 0 Section 13: Dismantling and Tear Down SECTION 14: Before starting the disassembly a large area should be created around the actuator so to allow any kind of movement without problems of further risks created by worksite.
Page 99 Installation, Operation and Maintenance Manual Notes MAN 714 Rev. 0 November 2024 This page is intentionally left blank...
Page 100 FCIM-20167-EN © 2024 Biffi. All rights reserved. Biffi Italia s.r.l. Strada Biffi 165 29017 Fiorenzuola d’Arda (PC) The contents of this publication are presented for informational purposes Italy only, and while every effort has been made to ensure their accuracy,...

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