PRODUCTS FOR REFRIGERATING SYSTEMS GENERAL DATA
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PRODUCTS FOR REFRIGERATING SYSTEMS GENERAL DATA FROM QUALITY OUR NATURAL DEVELOPMENT. Achieved the goal of fty years working in the industry of Refrigeration and Air Conditioning, Castel Quality Range of Products is well known and highly appreciated all over the world. Quality is the main issue of our Company and it has a special priority, in every step, all along the production cycle. UNI EN ISO 9001:2008, issued by ICIM, certies the Quality System of the Factory. Moreover Castel Products count a number of certications in conformity with EEC Directives and with European and American Quality Approval. We produce on high tech machinery and updated automatic production lines, operating in conformity with the safety and environment standards currently enforced. Castel oers to the Refrigeration and Air Conditioning Market and to the Manufacturers fully tested products suitable with HCFC and HFC Refrigerants currently used in the Refrigeration & Air Conditioning Industry. General data 1

September 2011 General data 2

INDICE DIRECTIVE 97/23/EC (PED) DIRECTIVE 2002/95/EC (ROHS) PRESSURE CONTAINMENT All the products illustrated in this Handbook, if submitted to hydrostatic test, guarantee a pressure strength at least equal to 1,43 x PS in compliance with the Directive 97/23/EC. All the products illustrated in this Handbook, if submitted to burst test, guarantee a pressure strength at least equal to 3 x PS according to EN 378-2 : 2008 Standard. A great number of products illustrated in this Handbook can guarantee an higher pressure strength, equal to 5 x PS according the UL Standard 207: 2009. PAG 07 KV...

Application of Directive 97/23/EC of the European Parliament and of the Council, of 29 May 1997, concerning pressure equipment towards Castel refrigeration products e Directive 97/23/EC (PED) applies to the design, manufacture and conformity assessment of pressure equipment and assemblies with a maximum allowable pressure “PS” greater than 0,5 bar with the exception of the possibilities listed in Article 1, Section 3 of the same Directive. Since 30 May 2002 the Directive has become mandatory and, in the Member States of European Community, it has been possible to place on the market only...

Application of Directive 2002/95/EC of the European Parliament and of the Council, of 27 January 2003, on the restriction of the use of certain hazardous substances in electrical and electronic equipment towards Castel refrigeration products e purpose of Directive 2002/95/EC (RoHS Directive) is to prevent or restrict the use of hazardous substances in electrical and electronic equipment and to contribute to the environmentally sound recovery and disposal of waste electrical and electronic equipment. RoHS Directive shall apply to electrical and electronic equipment falling under the...

Application of Regulation 1907/2006/EC of the European Parliament and of the Council, of 18 December 2006, on the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) towards Castel refrigeration products e European Regulation 1907/2006/EC concerning the Registration, Evaluation, Authorization and Restrictions of Chemicals, the so called REACH Regulation, was published on GUCE L136 dated 29 May 2007 and came into force in the European Union on the 1st June 2007. is Regulation requires to pre-register and register chemical substances produced or imported into Europe...

CONNECTIONS OF CASTEL PRODUCTS Castel products can be supplied with dierent connections. In particular Castel products are produced either with threaded connections or solder connections. Table 1 shows the equivalence between Castel codes and dimensions in inches. ese codes are commonly used in the international market. Table 2 shows the equivalence between Castel codes and dimensions in millimeters. Description of connections that are currently used for Castel products. 1) readed connections ey can be of three dierent types: FLARE Straight threaded connection (according to SAE J513-92;...

THE Kv FACTOR e correct sizing of tubes and components of a refrigerating system is of the utmost importance for all kinds of plants; over-sizing and undersizing are both to be avoided since they are equally hazardous for the correct operation of the system. e correct selection of a component is based on the knowledge of the relationship between capacity and pressure drop through that component. For this purpose, EN 60534-1, EN 60534-2-1 and EN 60534-2-3 standards require manufacturers to specify the Kv coecient for every product. predict actual working conditions. As a result: – Liquid...

1) Calculation example for liquid line: Evaluation of pressure drop across the valve under the following operating conditions: Q, = 17,23 [kW] refrigeration capacity of R407C on liquid line (table 1) L, = 0,84 correction factor of R407C for TLiquid = 50 °C and LIQUID LINE Using table 3b a pressure drop of 0,13 bar corresponds to a correction factor L2 = 0,92. Such a pressure drop is compatible with the minimum differential pressure required by the valve. TABLE 2- Correction factors - L, of the refrigeration capacity for temperatures different from standard values. General data

2) Calculation example for suction line: Valve selection under the following conditions: Q, = 2,23 [kW] refrigeration capacity of R404A on suction line (table 1) S, = 0,72 correction factor of R404A for Tcondensation = 40 °C and S2 = 0,86 correction factor for pressure drop of 0,11 bar (table 5a) The result involves the selection of a 1078/9 valve with Kv = 10 [m3/h] SUCTION LINE TABLE 4- Correction factors - Si of the refrigeration capacity for temperatures different from standard values. General data

3) Calculation example for hot gas line: Valve selection under the following conditions: Q, = 13,6 [kW] refrigeration capacity of R41 OA on hot gas line (table 1) S, = 1,01 correction factor of R41 OA for Tcondensation = 40 °C and S2 = 0,71 correction factor for pressure drop of 0,5 bar (table 7a) The result involves the selection of a 1078/5 valve with Kv = 2,61 TABLE 6- Correction factors - Hi of the refrigeration capacity for temperatures different from standard values. General data