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Air-Oil Heat Exchangers HPA

Air-Oil Heat Exchangers HPA
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Air-Oil Heat Exchangers HPA

Product catalog summary
Introduction
EMMEGI air-oil heat exchangers are engineered for cooling hydraulic systems using ambient air. They feature a high-resistance aluminum alloy cooler element, enhancing fluid turbulence and heat exchange capacity, resulting in a compact and robust product.
Compatible Fluids
  • Mineral Oils, HL, HLP
  • Water-Oil Emulsion
  • Water-Glycol
  • Consult EMMEGI for other fluids
Technical Specifications
  • Material: Long-life aluminum
  • Operating Pressure: 20 bar
  • Test Pressure: 35 bar
  • Max Operating Temperature: 120°C
  • Contact EMMEGI for aggressive atmospheres
Installation Guidelines
The exchanger can be installed horizontally or vertically with adequate airflow. It should be protected from mechanical impacts and connected with flexible pipes. A by-pass valve is recommended to prevent over-pressure during startup.
Maintenance
Regular cleaning of the cooler element is essential. Oil side cleaning requires dismantling and flushing with a compatible de-greasing agent, followed by a hydraulic oil wash. Air side cleaning can be done with compressed air or water.
Heat Exchanger Selection Example
For a system requiring 19.5 KW dissipation with an oil flow of 90 lpm and an oil input temperature of 60°C, the specific heat exchange power is 0.65 KW/°C. Selection is based on catalog graphs.
Technical Data and Performance
Performance diagrams and correction factors for pressure drop are provided for various models. The selected model for the example is HPA 30 – 230/400V – 50Hz, code 243003###.
Ordering Information
Product ordering codes are detailed for different series and configurations, including fan motor types and thermostat options.
Technical Specifications:
Specifications for various fan models include power requirements, dimensions, and performance metrics. Each model is identified by a part number and includes voltage, frequency, power, current, rpm, fan diameter, noise level, airflow, ingress protection, and weight.
Performance Diagrams:
Diagrams illustrate the relationship between power consumption and flow rate for different fan models, aiding in understanding efficiency and operational limits.
Pressure Drop and Correction Factor:
Graphs show pressure drop against flow rate for different viscosity grades, with a correction factor for various viscosities.
Dimensions:
Dimensions for each fan model are provided for installation purposes, noting that these are not binding.
Contact Information:
For further details or inquiries, contact EMMEGI.
General Notes:
Technical characteristics and dimensions are subject to change and should not be considered binding. Data for 12-24V models refer to individual fans.
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Catalog excerpts

Air-Oil Heat Exchangers HPA-1

GERMANY EMMEGI GMBH -WärmetauscherAm Hagelkreutz 13 - D-41469 Neuss Tel. +49 213778720 - Fax +49 2137787229 http://www.emmegi-gmbh.de [email protected] Scambiatori Aria-olio Serie HPA Air-oil heat-exchangers HPA Series CHINA EMMEGI Heat Exchangers Ltd Unit 17.9/F. Corporation Park, 11 On Lai Street, Siu Lek Yuen, Shatin, Hong Kong. Tel. 852-26473488 Fax 852-26032119 http://www.emmegi-heat-exchangers.com [email protected] UK EMMEGI UK (Sales Office) Evergreen, The Reddings Cheltenham GL51 6RL Tel. +44 1242 700151 Fax +44 1452 531475 http://www.emmegi.co.uk [email protected] USA EMMEGI USA (Sales Office) SLOVAKIA EMMEGI HEAT EXCHANGERS s.r.o. UI. M. Razusa 1 95514 Topolcany Tel. +421 385320739 Fax +421 385320742 [email protected] www.emmegi-heat-exchangers.com ITALIA EMMEGI S.p.A. Via Newton, 52 - Zona Industriale 20062 Cassano d’Adda (MI) - Italy Tel. +39 0363 360236 - Fax +39 0363 360230 http://www.emmegi-heat-exchangers.com [email protected]

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Air-Oil Heat Exchangers HPA-2

Gli scambiatori di calore aria-olio EMMEGI, sono impiegati per il raffreddamento di circuiti oleodinamici usando, come fluido raffreddante, l’aria ambiente convogliata sulla radiante da una ventola azionata da un motore elettrico o idraulico. La massa radiante, in lega d’alluminio ad alta resistenza, è ottenuta mediante un processo costruttivo di saldobrasatura sottovuoto. La particolare configurazione dei condotti aumenta la turbolenza del fluido e di conseguenza la capacità di scambio; inoltre la presenza di speciali turbolatori sull’alettatura del pacco radiante, migliora ulteriormente il...

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Air-Oil Heat Exchangers HPA-3

È buona norma prestare particolare attenzione alla pulizia della massa radiante per garantire un naturale ricambio d’aria, ed evitare una diminuzione dell'efficenza termica. You should be particularly carefully in cleaning the cooler element to guarantee a natural exchange of air, in order to prevent a reduction in thermal efficiency. Pulizia lato olio Per eseguire la pulizia lato olio, lo scambiatore dovrà essere smontato. Lo sporco può essere rimosso flussando in controcorrente un prodotto sgrassante, compatibile con alluminio. Effettuare un lavaggio con olio idraulico prima di ricollegare...

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Air-Oil Heat Exchangers HPA-4

Dati tecnici Technical Data P/N Per il 12-24V i dati sono riferiti al singolo ventilatore For 12-24 V the data refers to each ventilator Contattare EMMEGI Contact EMMEGI Diagramma rendimento Performance diagram Kw/°C 1,2 Lo scambiatore selezionato risulta il modello: HPA 30 – 230/400V – 50Hz cod. 243003###. The exchanger selected is the following model: HPA 30 – 230/400V – 50Hz cod. 243003###. Per la completa identificazione dello scambiatore consultare la pagina “DENOMINAZIONE CODICE PRODOTTO”. Nel caso non siano conosciuti tutti i dati, per la scelta prendere contatto EMMEGI. For a complete...

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Air-Oil Heat Exchangers HPA-5

Collegamenti elettrici Electric Wiring °C = Termostato NA./Thermostat NO. K = Relé/Relay CATALOGO PRODOTTI PRODUCTS CATALOGUE

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Air-Oil Heat Exchangers HPA-6

Modulo richiesta dati Sheet for cooler selection CLIENTE COMPANY RICHIEDENTE NAME ARIA-OLIO AIR-OIL PORTATA OLIO OIL FLOW RATE POTENZA INSTALLATA TOTAL POWER POTENZA DA DISSIPARE POWER TO BE DISSIPATED TEMPERATURA INGRESSO OLIO OIL TEMPERATURE INLET TEMPERATURA ARIA MAX MAX AMBIENT TEMPERATURE VISCOSITÀ OLIO OIL VISCOSITY PRESSIONE DI LAVORO WORKING PRESSURE TIPO DI VENTILAZIONE TYPE OF FAN UNIT CORRENTE CONTINUA DIRECT CURRENT PREDISPOSTO MOTORE IDRAULICO PREPARATED FOR HYDRAULIC MOTOR CORRENTE ALTERNATA ALTERNATE CURRENT TENSIONE SPECIALE SPECIAL VOLTAGE 50 HZ CATALOGO PRODOTTI PRODUCTS CATALOGUE...

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Air-Oil Heat Exchangers HPA-7

Denominazione codice prodotto Ana-oiio sene HPA Ordering code TIPO Dl SISTEMA COOLER SERIES TIPO Dl MOTORIZZAZIONE FAN MOTOR TYPE 54 Pred. per mot. idr. gr. 1 Prep, forhydr. mot. gr. 1 56 Pred. per mot. idr. gr. 2 Prep, for hydr. mot. gr. 2 58 Pred. per mot. idr. gr. 3 Prep, forhydr. mot. gr. 3 TERMOSTATI THERMOSTATS 1 Termostato fisso Fixed thermostat 2 Termostato fisso Fixed thermostat 3 Termostato fisso Fixed thermostat 4 Termostato fisso Fixed thermostat 5 Termostato fisso Fixed thermostat 6 Termostato fisso Fixed thermostat Adjustable thermostat TIPO Dl VENTILAZIONE VENTILATING TYPE 01 Aspirante...

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Air-Oil Heat Exchangers HPA-8

Indice Index Serie HPA 2pass - HPA 2pass Series HPA 24 2 PASS HPA 30 2 PASS HPA 36 2 PASS HPA 42 2 PASS HPA 50 2 PASS HPA 52 2 PASS CATALOGO PRODOTTI PRODUCTS CATALOGUE

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Air-Oil Heat Exchangers HPA-9

Le dimensioni di ingombro e le caratteristiche tecniche non sono impegnative Over-all dimensions and technical characteristic are not binding 8 CATALOGO PRODOTTI PRODUCTS CATALOGUE

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Air-Oil Heat Exchangers HPA-10

Dati tecnici Technical Data V Contattare EMMEGI Contact EMMEGI Diagramma rendimento Performance diagram Kw/°C HYDR. 3000 rpm Fattore di correzione - F - (perdite di carico) Correction factor - F - (Pressure drop) cst F CATALOGO PRODOTTI PRODUCTS CATALOGUE

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Air-Oil Heat Exchangers HPA-11

Le dimensioni di ingombro e le caratteristiche tecniche non sono impegnative Over-all dimensions and technical characteristic are not binding 10 CATALOGO PRODOTTI PRODUCTS CATALOGUE

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Air-Oil Heat Exchangers HPA-12

Dati tecnici Technical Data P/N Prepared for Gr.2 hydraulic motor Contattare EMMEGI Contact EMMEGI Diagramma rendimento Performance diagram Kw/°C 0,7 Fattore di correzione - F - (perdite di carico) Correction factor - F - (Pressure drop) cst F CATALOGO PRODOTTI PRODUCTS CATALOGUE

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Air-Oil Heat Exchangers HPA-13

Le dimensioni di ingombro e le caratteristiche tecniche non sono impegnative Over-all dimensions and technical characteristic are not binding 12 CATALOGO PRODOTTI PRODUCTS CATALOGUE

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Air-Oil Heat Exchangers HPA-14

Dati tecnici Technical Data V Contattare EMMEGI Contact EMMEGI Diagramma rendimento Performance diagram Kw/°C 0,8 Perdite di carico Pressure drop (ISO VG 32) bar 1 0,8 0,6 0,4 0,2 Fattore di correzione - F - (perdite di carico) Correction factor - F - (Pressure drop) cst F CATALOGO PRODOTTI PRODUCTS CATALOGUE

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Air-Oil Heat Exchangers HPA-15

Le dimensioni di ingombro e le caratteristiche tecniche non sono impegnative Over-all dimensions and technical characteristic are not binding 14 CATALOGO PRODOTTI PRODUCTS CATALOGUE

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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.