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Officine Mario Dorin Spa
Open type compressors

Open type compressors

Product catalog summary

Introduction
DORIN S.p.A. has been producing open type compressors since 1932, known for their high-quality materials and suitability for challenging conditions. These compressors are designed for optimal performance with a focus on noise reduction. Models 2Q-2 to 51VS use a sling disk for lubrication and rotate in a specific direction, while models 62VS to 110VS use a gear oil pump and can rotate in both directions. All compressors comply with Directive 94/9/CE – ATEX, excluding mechanical and electrical components.

Application Limits
The compressors feature water-cooled heads and a suction gas superheat of 5K. Maximum surface temperatures are T3 at 200°C and T4 at 135°C, with a suction gas superheat of less than 30K. The use of R22 refrigerant is restricted to areas where national legislation permits.

Technical Data
The document provides detailed technical specifications for various models, including lubrication methods and rotational capabilities. Optional accessories include flywheels, crankcase heaters, and head fans.

Performance Data
Performance data is provided for different refrigerants, including R134a, R404A/R507, R22, and NH3 (R717). Graphs illustrate the relationship between evaporation and condensing temperatures for each refrigerant.

Overall Dimensions
Dimensions for each compressor model are detailed, ensuring proper fit and installation in various applications.

Important Note
ATEX certification applies only to compressors without accessories. Users must determine the maximum surface temperature based on application conditions, as indicated in the application diagrams.

Specifications
The document provides detailed performance data for refrigeration systems, focusing on various models and their capacities. It includes information on refrigerating capacity, evaporating temperature, and power requirements. The data is presented in tables with parameters such as swept volume, RPM, and temperature conditions.

Procedures
Performance data is based on the European Standard EN12900. The suction gas temperature is set at 20°C for refrigerants R134a, R404A, and R22, with a 5 K superheat for R717. Liquid subcooling is maintained at 0K. The document advises using R22 only where permitted by national legislation.

Norms and Standards
The performance data adheres to the European Standard EN12900, ensuring consistency and reliability in the measurements provided.

Recommendations
It is recommended to use the specified power and to avoid mixing ester oils with different oils. The use of R22 should comply with national regulations.

Key Data from Tables
The tables provide refrigerating capacities at various evaporating temperatures, ranging from +15°C to -40°C. They also list the required power to install and the swept volume for different models. The data is crucial for selecting the appropriate refrigeration system based on specific operational needs.

Specifications
The document specifies the use of certain refrigeration models, such as 2S-90VS and 2S-81VS, with and without liquid subcoolers. It includes detailed tables of refrigerating capacities at various evaporating and condensing temperatures, measured in watts (W). The document also mentions the rotational speed of the compressors, which is 1450 revolutions per minute (r.p.m.).

Procedures
Instructions are provided for the installation and use of oil-related components, including the oil sight, oil charge plug, low and high-pressure taps, oil drain plug, and crankcase heater. The document also outlines the positions for liquid inlet and outlet, as well as discharge and suction service valves.

Standards and Recommendations
It is recommended to use R22 refrigerant only when permitted by national legislation. Additionally, it advises against mixing ester oil with other oils.

Key Components and Dimensions
The document lists various components and their functions, such as the oil sight, oil charge plug, and pressure taps. It also provides overall dimensions for different models, including 41VSR, 51VSM, and 63VS/4B.

Additional Information
A subcooler kit is supplied loose, with its position defined by the customer. An interstage injection line is mentioned but not supplied. The document is produced by Officine Mario Dorin S.p.A., located in Florence, Italy.

Catalog excerpts

OFFICINE MARIO DORIN SINCE 1918 OPEN TYPE COMPRESSORS COMPRESSORITIPO APERTO OFFENE HUBKOLBENVERDICHTER

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INDICE / TABLE OF CONTENTS / INDEX / INHALTSVERZEICHNIS ____________________________________________________________________________________________________________________________________________ Introduzione / Introduction / Introduction / Einführung Limiti d’applicazione / Application limits / Champs d’application / Einsatzgrenzen Caratteristiche tecniche / Technical data / Caracteristiques techniques / Technische merkmale Accessori / Accessories / Accessoires / Zubehör Prestazioni / Performances Data / Données de puissance / Leistungswerte Ingombri / Overall dimensions / Encombrements / Abmessungen...

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INTRODUZIONE / INTRODUCTION / INTRODUCTION / EINFÜHRUNG DORIN S.p.A. produce compressori aperti dal 1932. Tali compressori sono costruiti con materiali di prima qualità e sono quindi adatti a funzionamenti in condizioni particolarmente gravose. I compressori sono progettati per offrire il massimo delle prestazioni e particolare cura è stata data alla riduzione della rumorosità. I compressori dal 2Q-2 al 51VS sono realizzati senza pompa dell’olio, e lubrificati tramite disco di centrifugazione. Questi modelli possono ruotare in un solo senso di rotazione, chiaramente indicato sulla macchina. I...

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LIMITI D’APPLICAZIONE / APPLICATION LIMITS / CHAMPS D’APPLICATION / EINSATZGRENZEN 55 Temperatura condensazione / Condensing temperature Temperature de condensation / Kondensationtemperatur [°C] Temperatura condensazione / Condensing temperature Temperature de condensation / Kondensationtemperatur [°C] Tem peratura evaporazione / Evaporation tem perature Tem perature d'évaporation / Verdam pfungstem peratur [°C] Temperatura evaporazione / Evaporation temperature Temperature d'évaporation / Verdampfungstemperatur [°C] T3 massima temperatura superficiale 200°C T4 massima temperatura superficiale...

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LIMITI D’APPLICAZIONE / APPLICATION LIMITS / CHAMPS D’APPLICATION / EINSATZGRENZEN Temperatura condensazione / Condensing temperature Temperature de condensation / Kondensationtemperatur [°C] Tem peratura evaporazione / Evaporation tem perature Tem perature d'évaporation / Verdam pfungstem peratur [°C] Temperatura condensazione / Condensing temperature Temperature de condensation / Kondensationtemperatur [°C] Tem peratura evaporazione / Evaporation tem perature Tem perature d'évaporation / Verdam pfungstem peratur [°C] Utilizzo con R22 solo dove permesso dalle legislazioni nazionali __________________________________________________________________________________________________________________________________________________________________________________________________...

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CARATTERISTICHE TECNICHE / TECHNICAL DATA / CARACTERISTIQUES TECHNIQUES / TECHNISCHE MERKMALE Cil. Modello Model Carica olio Stroke Swept volume Power input Puissance absorbée Potenza assorbita Charge huile Resistenza carter Résistance carter Ventilation auxiliaire Crankcase heater Olsumpfheizung Teste raffreddate ad acqua Water cooled head Capacity control Unloaded start Démarrage à vide ODPS Pressostato differenziale olio elettronico Oil differential pressure switch Pressostat différentiel d'huile électronique Öldifferenzdruckschalter elektronisch Modello - Model Modèle - Typ 2Q Accessori su...

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CARATTERISTICHE TECNICHE / TECHNICAL DATA / CARACTERISTIQUES TECHNIQUES / TECHNISCHE MERKMALE Numero Cilindri Modello Nombre cylindres Swept volume Carica olio Potenza assorbita Power input Charge huile Puissance absorbée * Tipi di cinghie / Belts types / Type de courroies / Riementypen ** Peso lordo con volano / Gross weight with flywheel / Poids brut avec volant / Bruttogewicht mit schwungrad A - Compressore B - Sottoraffreddatore liquido C - Filtro D - Spia liquido E - Valvola solenoide F - Valvola termostatica G - Valvola di ritegno H – Presa Bassa Press. A - Compressor B - Liquid subcooler...

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PRESTAZIONI / PERFORMANCES DATA / DONNÉES DE PUISSANCE / LEISTUNGSWERTE Cilindrata u.p.m. Hubvolumen Zu installierende leistung [cm3] Temp. Cond. Cond. Temp. Capacità frigorifera - Refrigerating capacity Puissance frigorifique - Kälteleistung Temp. Cond. Temperatura evaporazione / Evaporating temperature Kond. Temp. Température d'évaporation / Verdampfungstemperatur [°C] C _______________________________ Le prestazioni si basano sulla norma europea EN12900 Performance data are based on European Standard EN12900 Les données de puissance se basent sur la norme européeenne EN12900 Temperatura di...

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PRESTAZIONI / PERFORMANCES DATA / DONNÉES DE PUISSANCE / LEISTUNGSWERTE Cilindrata u.p.m. Hubvolumen Zu installierende leistung [cm3] Temp. Cond. Cond. Temp. Capacità frigorifera - Refrigerating capacity Puissance frigorifique - Kälteleistung Temp. Cond. Temperatura evaporazione / Evaporating temperature Kond. Temp. Température d'évaporation / Verdampfungstemperatur [°C] C Performance data are based on European Standard EN12900 _______________________________ Le prestazioni si basano sulla norma europea EN12900 Temperatura di aspirazione = 20°C per R134a, R404A, R22 (5 K surriscaldamento per...

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PRESTAZIONI / PERFORMANCES DATA / DONNÉES DE PUISSANCE / LEISTUNGSWERTE Cilindrata u.p.m. Hubvolumen Zu installierende leistung [cm3] Temp. Cond. Cond. Temp. Capacità frigorifera - Refrigerating capacity Puissance frigorifique - Kälteleistung Temp. Cond. Temperatura evaporazione / Evaporating temperature Kond. Temp. Température d'évaporation / Verdampfungstemperatur [°C] C _______________________________ Le prestazioni si basano sulla norma europea EN12900 Temperatura di aspirazione = 20°C per R134a, R404A, R22 (5 K surriscaldamento per R717) Performance data are based on European Standard EN12900...

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Open type compressors

Open type compressors

Catalog excerpts

All Officine Mario Dorin Spa catalogs and technical brochures