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HEAT EXCHANGERS

HEAT EXCHANGERS
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HEAT EXCHANGERS

Product catalog summary
Overview
The document provides a detailed overview of OMT Group's heat exchangers, focusing on design, specifications, and applications. It emphasizes the company's commitment to innovation, quality, and customer service, supported by a modern technical department and ISO 9001:2015 standards compliance.
Product Series
The document outlines various series of heat exchangers, including:
  • SS Series: Standard air-oil exchangers.
  • SS2 Series: Double passage for reduced flows with enhanced heat exchange capacity.
  • SD Series: Designed for high flow rates.
  • SA Series: Water-oil exchangers.
  • SSPV Series: Air-oil exchangers with specific features.
  • SSP-SER Series: Another variant of air-oil exchangers.
Technical Specifications
Heat exchangers are constructed with aluminum for high thermal conductivity and pressure resistance. Key specifications include:
  • Operating pressure: 25 bar
  • Test pressure: 35 bar
  • Maximum operating temperature: 120°C
  • Fluid compatibility: Mineral oils, HL, HLP, and water-oil emulsions
Installation and Maintenance
Recommendations include using a by-pass valve for protection during startup and ensuring unobstructed airflow. Maintenance involves cleaning both the oil and air sides using compatible detergents and compressed air.
Materials Used
Components such as fans, fan cases, and protection grids are made from steel or reinforced plastic, ensuring durability and performance.
Performance and Calculations
The document provides formulas for calculating the thermal power and specific dissipation heat of the exchangers, with examples illustrating calculations based on oil flow and temperature differences.
Motor Options
OMT offers various motor types for the exchangers, including single-phase, three-phase, and DC motors, with recommendations for continuous operation.
Ordering Information
Details on how to order specific models, including options for thermostats and fan types, are provided, along with guidance for special applications requiring custom solutions.
Thermostats and Accessories
The document provides technical specifications for electronic thermostats and accessories, focusing on thermostats with integrated soft starter control for direct current loads. Key features include:
  • Supply voltage: 12 to 24 VDC
  • Maximum load: 20A
  • Electrical protection: IP67
  • Operating temperatures: -20°C to +80°C
Applications
These thermostats are suitable for applications requiring precise temperature control and protection of electrical systems, particularly in environments with varying temperatures and pressures.
Heat Exchanger Series
The document describes three series of exchangers: "ST" standard, "ST2" with double passage for reduced flows but higher heat exchange capacity, and "SDT" for high flows. Performance is measured by dissipation per centigrade degree.
Technical Features of Ventilation Group
Technical details for the ST50 and ST60 series include frequency, voltage, RPM, power, fan diameter, noise level, air flow, capacity, weight, and IP rating. Suggested oil flow rates and correction factors for pressure drop and performance are also provided.
Innovations in SSPV Series
The SSPV series integrates a thermostatic by-pass valve within the heat exchanger, simplifying assembly, reducing costs, and effectively managing pressure peaks and oil viscosity variations.
Installation Guidelines
Ensure adequate space for opening and inspecting the exchanger. Install safety valves for isolation and easy maintenance. Position temperature and pressure transducers close to the tube bundle and include bleeder valves to release vapors and gases.
Maintenance Instructions
Isolate the exchanger from the circuit and ensure no pressurized fluids are present before maintenance. Frequency of cleaning depends on fluid properties; hard or dirty water requires more frequent cleaning.
Certification Information
The document includes a management system certificate for OMT Group S.p.A., confirming conformity to ISO 9001:2015 for the design and manufacture of heat exchangers and related components.
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Catalog excerpts

HEAT EXCHANGERS-1

SCAMBIATORI DI CALORE HEAT EXCHANGERS

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HEAT EXCHANGERS-2

Portaci nel futuro, saremo al tuo fianco nelle tue prossime sfide. Trust it. Take us to the future and we will stand by your side as you face new challenges. Trust it.

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HEAT EXCHANGERS-3

INDEX SCAMBIATORI DI CALORE HEAT EXCHANGERS Aria - Olio Aria - Olio Aria - Olio SERIE SSPV SSPV SERIES Aria - Olio SERIE SSP-SER SSP-SER SERIES Aria - Olio Acqua - Olio

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HEAT EXCHANGERS-4

PROGETT AZIONE PROJECTS Il moderno e qualificato ufficio tecnico progetta e sviluppa nuovi prodotti ed esegue progetti speciali su richiesta del cliente. The modern and qualified technical Department is skilled in designing and develop new products and it is ready to support every customer’s request with special solutions. QUALITÀ QUALITY È un punto di forza di OMT Group e viene costantemente controllata nella moderna e attrezzata sala prove. OMT Group è conforme ai requisiti del Sistema Gestione Qualità ISO 9001:2015. Is a strong point of OMT Group and it is constantly monitored in the modern...

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HEAT EXCHANGERS-5

DALL’ ESPERIENZA From expertise OMT Group è una realtà dinamica e all'avanguardia, forte di un'esperienza di oltre 55 anni nel settore dell'oleodinamica. L'innovazione presuppone non solo l'aumento di spazi, il potenziamento degli impianti e dei macchinari, ma un programma da realizzare con un gruppo unico, coeso, in grado di rispondere alle richieste di un mercato in continua evoluzione. Nel 2022 OMT Group incorpora OMT e LUEN, ne raccoglie l'esperineza e programma il cambiamento per il futuro. Innovation does not just involve changing premises and upgrading plants and machinery, but also includes...

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HEAT EXCHANGERS-6

Gli scambiatori ARIA-OLIO della OMT Group nascono per essere installati sulle linee di ritorno dei circuiti oleodinamici. La speciale conformazione del pacco radiante, realizzato in lega di alluminio che ne esalta le qualità di conducibilità ed il processo di saldobrasatura dei turbinatori e dei condotti, hanno permesso di ottenere un elevato coefficiente di scambio termico e una buona resistenza alla pressione, qualità ottenuta tramite l'utilizzo di materiali altamente qualificati. OMT Group AIR-OIL heat exchangers have been designed to be used on the return line of the hydraulic systems. The...

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HEAT EXCHANGERS-8

CARATTERISTICHE TECNICHE TECHNICAL DATA CARATTERISTICHE TECNICHE TECHNICAL DATA SCAMBIATORI DI CALORE TIPO ARIA-OLIO HEAT EXCHANGER AIR-OIL VERSION Specifiche pacco radiante Materiale Pressione di esercizio Pressione di collaudo Temperatura max d’esercizio Radiating mass data Alluminio 25 bar 35 bar 120 °C Material Nominal pressure Test pressure Max temperature Fluid compatibility Oli minerali, hl, hlp, emulsioni acqua-olio. Mineral oils, hl, hlp, water-oil emulsion. È consigliabile installare in parallelo allo scambiatore una valvola di By-pass, per proteggerlo durante la fase di avviamento....

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HEAT EXCHANGERS-9

Scambiatori di calore serie S Serie Aria-Olio SS Series Heat exchanger series S ESEMPIO DI SCELTA DELLO SCAMBIATORE DATA RELATING TO HEAT EXCHANGER SELECTION Air-Oil version Di seguito sono riportati tre differenti famiglie di scambiatori: - serie “SS” standard - serie  “SS2” con doppio passaggio per portate ridotte, ma con maggiore potenzialità di scambio termico - serie  “SD” per portate elevate. Sull’asse delle ascisse viene indicata la portata d’olio che attraversa lo scambiatore, espressa in (lt/min), mentre sulle ordinate è indicato il rendimento di dissipazione per ogni grado centigrado,...

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HEAT EXCHANGERS-10

SS SeriesHow to orderS Air-Oil series CODICE DI ORDINAZIONE HOW TO ORDER Termostati bimetallici fissi Bimetallic fixed temperature switches Senza termostato No switch o Per 01 sceltaTermostato fisso 36-26 C la del termostato Fixed26 - 27 36-26 oC switch vedi pagine 25 Termostato fisso 43-33 oC To choose switch 02 o Fixed - 27 see pages 25 - 26switch 43-33 C Termostato fisso 52-42 oC 03 Fixed switch 52-42 oC Termostato fisso 65-55 oC 04 Fixed switch 65-55 oC Termostato fisso 75-65 oC 05 Fixed switch 75-65 oC Termostato fisso 85-75 oC 06 Fixed switch 85-75 oC Termostato fisso 95-85 oC 07 Fixed...

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HEAT EXCHANGERS-11

Scambiatore tipo SS10 Serie Aria-Olio SS10 exchanger series SS10 Heat SCAMBIATORE TIPO ARIA-OLIO Air-Oil version HEAT EXCHANGER AIR-OIL VERSION CARATTERISTICHE TECNICHE DEL GRUPPO DI VENTILAZIONE TECHNICAL FEATURES Tipologia Type 01 03 12 24 Potenza Diam. Ventola Power Ø FAN kW (mm) 0.023/0.026 170 0.032/0.027 170 0.076 167 0.076 167 Portata olio consigliata da 5 a 40 (lt/min) Suggested oil flow from 5 to 40 (lt/min) L 226 Coefficiente di correzione Correction factor CST 10 15 20 F 0.51 0.66 0.76 Diagramma di rendimento Performance diagram 50 1.4 Perdita di carico Pressure drop Calore specifico...

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HEAT EXCHANGERS-12

Scambiatore tipo SS15 Serie Aria-Olio SS15 exchanger series SS15 Heat SCAMBIATORE TIPO ARIA-OLIO Air-Oil version HEAT EXCHANGER AIR-OIL VERSION CARATTERISTICHE TECNICHE DEL GRUPPO DI VENTILAZIONE TECHNICAL FEATURES Tipologia Type 01 03 14 12 24 G2 Portata olio consigliata da 20 a 80 (lt/min) Suggested oil flow from 20 to 80 (lt/min) 318 Coefficiente di correzione Correction factor CST 10 15 20 F 0.51 0.66 0.76 Diagramma di rendimento Performance diagram 50 1.4 Diagramma perdite di carico (32 cst) Pressure drop diagram (32 cst) (pa) 120000 Calore specifico di dissipazione (η) C Specific dissipation...

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HEAT EXCHANGERS-13

Scambiatore tipo SS20 Serie Aria-Olio SS20 exchanger series SS20 Heat Air-Oil version SCAMBIATORE TIPO ARIA-OLIO HEAT EXCHANGER AIR-OIL VERSION CARATTERISTICHE TECNICHE DEL GRUPPO DI VENTILAZIONE TECHNICAL FEATURES Tipologia Type 01 03 14 12 24 G2 Portata olio consigliata da 30 a 100 (lt/min) Suggested oil flow from 30 to 100 (lt/min) L Coefficiente di correzione Correction factor CST 10 15 20 F 0.51 0.66 0.76 Diagramma di rendimento Performance diagram 50 1.4 Calore specifico di dissipazione (η) Specific dissipation heat (η) Diagramma perdite di carico (32 cst) Pressure drop diagram (32 cst)...

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HEAT EXCHANGERS-14

Scambiatore tipo SS24 Serie Aria-Olio SS24 exchanger series SS24 Heat Air-Oil version SCAMBIATORE TIPO ARIA-OLIO HEAT EXCHANGER AIR-OIL VERSION CARATTERISTICHE TECNICHE DEL GRUPPO DI VENTILAZIONE TECHNICAL FEATURES Tipologia Type Portata olio consigliata da 40 a 120 (lt/min) Suggested oil flow from 40 to 120 (lt/min) 378 Coefficiente di correzione Correction factor CST 10 15 20 F 0.51 0.66 0.76 Diagramma di rendimento Performance diagram 50 1.4 Diagramma perdite di carico (32 cst) Pressure drop diagram (32 cst) 300 Calore specifico di dissipazione (η) Specific dissipation heat (η) 0,8 Perdita...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.