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LSE S&T EVAPORATORS

LSE S&T EVAPORATORS

Product catalog summary

Specifications:
The document details the specifications for LSE Shell & Tube Evaporators, highlighting pressure and temperature limits. These evaporators are certified under CE and ASME standards, with pressure ratings up to 23 bar and temperature ranges from -10°C to 90°C. The materials comply with European and American pressure vessel codes.

Technical Information:
LSE evaporators are used for water chilling in air conditioning, cooling in refrigeration plants, and water heating in heat pump systems. They are optimized for R134a refrigerant but compatible with other refrigerants. The cooling capacity ranges from 160 kW to 1700 kW, with up to 4 refrigerant circuits. The tube bundle is non-removable but allows easy cleaning due to its straight tube configuration.

Materials:
Construction materials include cast ductile iron or carbon steel for headers, carbon steel for tube-sheets and connections, copper for exchanger tubes, and plastic or carbon steel for baffles. Alternative materials are available upon request.

Accessories:
Optional accessories include saddles, compressor supports, flanged water connections, trace heating, and UV protection insulation.

Standards and Testing:
The evaporators undergo non-destructive examinations and pressure tests according to CE and ASME standards. Working limits for temperature and pressure are specified.

Selection and Installation Recommendations:
Key factors for selecting an evaporator include the fouling factor, which varies based on water type and glycol concentration. Installation guidelines emphasize horizontal positioning, air purging, maintaining proper pressure, and avoiding excessive vibrations. The document advises on water compatibility and the use of glycol solutions to prevent freezing.

Nominal Data:
Nominal data for various models are provided, including power capacity, flow rate, pressure drop, and dimensions. Tables with detailed specifications for each model are included.

Technical Specifications:
Detailed specifications for various models of shell and tube evaporators are provided, identified by model numbers such as LSE 201, 250, 292, etc. Key parameters include total power in kW, total capacity in tons, flow rate in m3/h, pressure drop in kPa, gas and water volume, and dimensions in mm. The nominal data specifies the use of refrigerant R134a, with inlet and outlet water temperatures of +12°C and +7°C respectively, and an evaporation temperature of 3°C.

Dimensions and Connections:
Dimensions are provided for each model, including length, width, and height in mm. Water connections are specified with standard and maximum diameters, and refrigerant connections are detailed for both copper and steel pipes.

Warranty and Compliance:
The warranty section outlines a period of 18 months from delivery, covering defects in material and workmanship. It specifies conditions under which the warranty is void, such as unauthorized repairs, improper use, and non-compliance with installation specifications. The document ensures compliance with Italian and European laws at the time of order confirmation.

Accessories and Additional Notes:
Accessories such as flexible couplings and insulation are available upon request. The document includes notes on fouling factor and superheating, and mentions the availability of left or top versions of the product on request.

Key Considerations:
Critical considerations include ensuring proper installation and adherence to specified environmental and functional parameters to maintain warranty validity. The document emphasizes the importance of compliance with technical specifications and legal regulations.

Catalog excerpts

SHELL & TUBE EVAPORATORS

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SHELL & TUBE EVAPORATORS INFORMAZIONI TECNICHE TECHNICAL INFORMATION Le principali applicazioni degli evaporatori ad espansione secca LSE sono il raffreddamento dell’acqua in impianti di condizionamento, il raffreddamento di liquidi o miscele incongelabili in impianti di refrigerazione, la produzione di acqua calda in impianti a pompa di calore. I modelli della serie LSE, ottimizzati per uso con R134a, sono tuttavia impiegabili con tutti i refrigeranti di comune utilizzo; tramite il software di selezione ed il supporto del nostro Ufficio Tecnico sarà possibile ottenere la soluzione migliore ad...

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CONSIGLI PER UNA CORRETTA SELEZIONE HINTS FOR A CORRECT SELECTION Il fattore di sporcamento (f.f.) è un elemento importante per il dimensionamento di un evaporatore, quindi si suggerisce una scelta corretta del suo valore in base ai seguenti parametri: • • • • The fouling factor (f.f.) is fundamental for a correct selection of an evaporator, therefore some useful values are given below: • normal water in closed circuit • water in open circuit • solutions with glycol < 40% • solutions with glycol > 40% acqua dolce in circuito chiuso f.f. = 0.000043 m2K/W acqua in circuito aperto f.f. = 0.000086...

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MODELLO / MODEL Potenza totale a condizioni nominali Total capacity at nominal conditions Portata / Flow rate Perdite di carico / Pressure drop Volume gas Volume H2O ATTACCHI CONNECTIONS DATI NOMINALI NOMINAL DATA ACQUA / WATER (STD) ACQUA / WATER (MAX) PESO / WEIGHT SHELL & TUBE EVAPORATORS Temperatura entrata acqua / Inlet water temperature: +12°C Temperatura di evaporazione / Evaporation temperature: 3 °C Temperatura uscita acqua / Outlet water temperature +7°C Temperatura di condensazione / Condensation temperature 40 °C Fattore di sporcamento / Fouling factor: 0,000043 m2K/W (1) Attacchi...

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MODELLO / MODEL Potenza totale a condizioni nominali Total capacity at nominal conditions Portata / Flow rate Perdite di carico / Pressure drop Volume gas Volume H2O ATTACCHI CONNECTIONS ACQUA / WATER (STD) ACQUA / WATER (MAX) PESO / WEIGHT DATI NOMINALI NOMINAL DATA Temperatura entrata acqua / Inlet water temperature: +12°C Temperatura di evaporazione / Evaporation temperature: 3 °C Temperatura uscita acqua / Outlet water temperature +7°C Temperatura di condensazione / Condensation temperature 40 °C Fattore di sporcamento / Fouling factor: 0,000043 m2K/W (1) Attacchi flangiati standard / Standard...

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MODELLO / MODEL Potenza totale a condizioni nominali (1) Total capacity at nominal conditions (1) Portata / Flow rate Perdite di carico / Pressure drop Volume gas Volume H2O ATTACCHI CONNECTIONS SHELL & TUBE EVAPORATORS 2 CIRCUITS ACQUA / WATER (STD) ACQUA / WATER (MAX) PESO / WEIGHT DATI NOMINALI NOMINAL DATA Temperatura entrata acqua / Inlet water temperature: +12°C Temperatura di evaporazione / Evaporation temperature: 3 °C Temperatura uscita acqua / Outlet water temperature +7°C Temperatura di condensazione / Condensation temperature 40 °C Fattore di sporcamento / Fouling factor: 0,000043...

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LSE MODELLO / MODEL Potenza totale Total capacity Portata / Flow rate Perdite di carico / Pressure drop Volume gas Volume H2O ATTACCHI CONNECTIONS ACQUA / WATER (STD) ACQUA / WATER (MAX) DATI NOMINALI NOMINAL DATA PESO / WEIGHT Temperatura entrata acqua / Inlet water temperature: +12°C Temperatura di evaporazione / Evaporation temperature: 3 °C Temperatura uscita acqua / Outlet water temperature +7°C Temperatura di condensazione / Condensation temperature 40 °C Fattore di sporcamento / Fouling factor: 0,000043 m2K/W (1) Potenza totale somma di tutti i circuiti / Total capacity sum of all circuits...

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MODELLO / MODEL Potenza totale Total capacity Portata / Flow rate Perdite di carico / Pressure drop Volume gas Volume H2O ACQUA / WATER (STD) ACQUA / WATER (MAX) ATTACCHI CONNECTIONS SHELL & TUBE EVAPORATORS 2 CIRCUITS PESO / WEIGHT DATI NOMINALI NOMINAL DATA Temperatura entrata acqua / Inlet water temperature: +12°C Temperatura di evaporazione / Evaporation temperature: 3 °C Temperatura uscita acqua / Outlet water temperature +7°C Temperatura di condensazione / Condensation temperature 40 °C Fattore di sporcamento / Fouling factor: 0,000043 m2K/W (1) Potenza totale somma di tutti i circuiti...

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MODELLO / MODEL Potenza totale Total capacity Portata / Flow rate Perdite di carico / Pressure drop Volume gas Volume H2O ATTACCHI CONNECTIONS ACQUA / WATER (STD) ACQUA / WATER (MAX) DATI NOMINALI NOMINAL DATA PESO / WEIGHT Temperatura entrata acqua / Inlet water temperature: +12°C Temperatura di evaporazione / Evaporation temperature: 3 °C Temperatura uscita acqua / Outlet water temperature +7°C Temperatura di condensazione / Condensation temperature 40 °C Fattore di sporcamento / Fouling factor: 0,000043 m2K/W (1) Potenza totale somma di tutti i circuiti / Total capacity sum of all circuits...

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MODELLO / MODEL Potenza totale Total capacity Portata / Flow rate Perdite di carico / Pressure drop Volume gas Volume H2O ATTACCHI CONNECTIONS SHELL & TUBE EVAPORATORS 4 CIRCUITS ACQUA / WATER (STD) ACQUA / WATER (MAX) DATI NOMINALI NOMINAL DATA PESO / WEIGHT Temperatura entrata acqua / Inlet water temperature: +12°C Temperatura uscita acqua / Outlet water temperature +7°C Fattore di sporcamento / Fouling factor: 0,000043 m2K/W (1) Potenza totale somma di tutti i circuiti / Total capacity sum of all circuits NOTE / NOTES (2) Attacchi flangiati standard / Standard flanged connections (3) Ove indicato...

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INTERASSE ATTACCHI REFRIGERANTE REFRIGERANT INLET / OUTLET DISTANCE 2 CIRCUITI REFRIGERANTE / 2 REFRIGERANT CIRCUITS TESTATA / HEADER TESTATA / HEADER 3 CIRCUITI REFRIGERANTE / 3 REFRIGERANT CIRCUITS TESTATA / HEADER 4 CIRCUITI REFRIGERANTE / 4 REFRIGERANT CIRCUITS TESTATA / HEADER NOTE / NOTE: Versione “sinistra” o “top” disponibile su richiesta / Left or top versions available on request

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