CASTEL

Castel, a leading supplier of refrigeration and air conditioning components, is a 100% Italian-owned family-run company established in 1961. The vast range of Castel products include: thermostatic and electronic expansion valves, solenoid valves, coils, connectors, safety devices, pressure switch valves for water, pressure regulators, indicators, filter driers, mechanical filters, oil level control systems, valves for refrigeration systems, vibration isolators, brass fittings and Schrader valves.

SOLENOID VALVE

Solenoid valves are designed for installation on commercial refrigeration systems and civil and industrial air conditioning systems employing the following refrigerants: R22, R134a, R404A, R407C, R410A; R507 in Group II. Contact Castel’s Technical Office for information on specific applications with refrigerants which are not listed above but do belong to Group II. Available in normally closed or NC and normally open or NO versions, with connections from ¼" to 2.1/8" and a vast range of reels and connectors.

THERMAL EXPANSION VALVE

Series "22" thermostatic valves are designed to work with the interchangeable ori?ce assembly to ensure ?exible choice of potential and may be used in a vast range of different applications. 2028 ON/OFF valves control liquid flow on the basis of the criterion of pulse width modulation or PWM. 9 interchangeable orifices are available.

SAFETY VALVES, RUPTURE DISCS AND ACCESSORIES

Series 3030 and 3060 valves are safety accessories according to the de?nition contained in Directive 97/23/CE and are subject to the requirements of the Directive. These valves are conventional unbalanced direct load safety valves. Series 3070 rupture discs are pressure limiting devices which open at a certain pressure and cannot be reclosed.

VALVES FOR REFRIGERATING SYSTEMS

Check valves and stop valves are designed for installation on commercial refrigeration systems and civil and industrial air conditioning systems employing the following refrigerants: R22, R134a, R404A, R407C, R410A; R507 in Group II. Contact Castel’s Technical Office for information on specific applications with refrigerants which are not listed above but do belong to Group II.

CASTEL PRESSURE REGULATOR AND WATER PRESSURE VALVES 

Regulators are used in air conditioning and refrigeration systems compatible with HFC and HCFC refrigerants. The high quality of the materials employed ensures long life for the regulator and allows refrigeration systems to operate with wide load variations. 3310 capacity control 3320 start-up pressure control 3330 evaporation pressure control 3340 condensation pressure control 3350 liquid receiver pressure control 3210 water pressure valves

CASTEL FILTERS FOR REFRIGERATING FLUIDS AND LIQUID/HUMIDITY INDICATORS

Filters and liquid/humidity indicators are designed for installation on commercial refrigeration systems and civil and industrial air conditioning systems employing Group II refrigerants. Filter driers are available in a hermetically sealed version or with a solid exchangeable cartridge. Hermetically sealed filters are supplied in the standard drier version, series 43, anti-acid series 42, bi-directional flow series 46, with indicator series 41 and mechanical series 45. Filters with a solid exchangeable cartridge are available in packages of 1 to 4 standard drier, anti-acid or mechanical cartridges. Liquid/humidity indicators are available with welded or flare connections in a monitoring only version, series 38, or monitoring + humidity detection, series 37 and 39.

CASTEL ACCESS FITTINGS AND VIBRATION ELIMINATORS

Threaded brass connections Designed for installation on systems using the following refrigerants: R22, R134a, R404A, R407C, R410A; R507 in Group II (as defined in Article 9, Point 2.2 of Directive 97/23/CE, with reference to Directive 67/548/CEE). Contact Castel’s Technical Office for information on specific applications with refrigerants which are not listed above but do belong to Group II. Vibration isolators Vibration isolators are installed on commercial refrigeration and civil and industrial air conditioning systems to eliminate transmission of vibrations generated by the compressor to the pipes in the circuit. They also reduce noise and compensate for slight thermal dilation. Vibration isolators are designed for installation on systems using the following refrigerants: R22, R134a, R404A, R407C, R410A; R507 in Group II (as defined in Article 9, Point 2.2 of Directive 97/23/CE, with reference to Directive 67/548/CEE). Contact Castel’s Technical Office for information on specific applications with refrigerants which are not listed above but do belong to Group II. Access fittings and mechanisms All filling fittings and mechanisms illustrated here are excluded from application of Directive 97/23/CE in that they are classified as piping components, as stated in Guidelines 1/8 and 1/9. Access fittings permit quick, economical creation of a filling or bleed point. Once filling or bleeding operations have been completed, a sealed cap (code 8392/A or code 8391/A) prevents all possible refrigerant leakage.

OIL CONTROL SYSTEMS: OIL SEPERATORS

Castel offers a vast range of oil management and control products: oil separators, oil level regulators, oil filters and oil reserves. All products are compatible with HFC refrigerants, and particularly R134a, R404A, R407C, R507 and R410A mixed with POE oils or CFC and HCFC refrigerants mixed with mineral oils.

CASTEL MOISTURE INDICATOR

The liquid indicators and moisture/liquid indicators are designed for installation on commercial refrigeration systems and on civil and industrial air conditioning plants that use the R744 refrigerant.

CASTEL DIAPHRAGM VALVES

Diaphragm valves do not have a gland seal. Thin metal discs (diaphragms), which hermetically isolate the spindle chamber from the fluid flow area, ensure the external sealing. The main parts of the diaphragm valves are made with the following materials: • Hot forged brass EN 12420 – CW 617N for the body. • Brass EN 12164 – CW 614N for spindle • Harmonic steel for spring • Nylon for seat sealing gaskets

CASTEL CHECK VALVE

The check valves illustrated in this chapter are designed for installation on commercial refrigeration systems and on civil and industrial air conditioning plants that use the following refrigerant fluids: • HCFC (R22), only valves in series 3122 • HFC (R134a, R404A, R407C, R410A, or R507) • HFO and HFO/HFC mixtures (R1234ze, R448A, R449A, R450A, or R452A) belonging to Group 2, as defined in Article 13, Chapter 1, Point (b) of Directive 2014/68/EU, with reference to EC Regulation No. 1272/2008. Furthermore, the same check valves, up to DN 25, that is models 3122/9, 3124N/9, 3125N/9 can also be installed on systems using the following refrigeration fluids: • HFC (R32) • HFO (R1234yf) classified as A2L in the ASHRAE 34-2013 standard, and belonging to Group 1, as defined in Article 13, Chapter 1, Point (a) of Directive 2014/68/EU, with reference to EC Regulation No. 1272/2008. For specific applications with refrigerant fluids not listed above, please contact Castel Technical Department.

CASTEL 1/4 FLARE SOLENOID VALVE

Solenoid valves are designed for installation on commercial refrigeration systems and commercial and industrial air conditioning systems employing HCFC and HFC Refrigerants. Available in normally closed-Direct Operated and Normally closed-Servo Operated versions, with connections from 1/4" to 2.1/8"