The valves series 1020 ; 1028 ; 1034 ; 1038 ; 1040 ; 1048 ; 1049 ; 1050 ; 1058 ; 1059 , 1064 ; 1068 ; 1070 ; 1078 ; 1079 ; 1090 ; 1098 ; 1099 are normally closed valves.
NC = when the coil is de-energised the plunger stops the fluid flow, when the coil is electrically energised the plunger opens the valve seat connecting the inlet to the outlet.
The NC valves are supplied either without coil (S type) or with coil (A6 type with coil HM2–220/230 VAC and A7 type with coil HM2–240 VAC).
The solenoid valves, shown in this chapter, are classified “Pressure accessories” in the sense of the Pressure Equipment Directive 94/23/EC, Article 1, Section 2.1.4 and are subject of Article 3, Section 1.3 of the same Directive. They are designed for installation on commercial refrigerating systems and on civil and industrial conditioning plants, which use the following refrigerant fluids: R22 , R134a , R404A , R407C , R410A , R507 proper to the Group II (as defined in Article 9, Section 2.2 of Directive 97/23/EC and referred to in Directive 67/548/ EEC). For specific applications with refrigerant fluids not listed above, always proper to the Group II, please contact Castel Technical Department.
| Mfr. Part No. | Description |
| 1020 | direct acting valve, SAE Flare connection 3/8'' |
| 1028 | direct acting valve, ODS connection 1/4'' or 3/8'' |
| 1064 | diaphragm pilot operated valve, SAE Flare connection 3/8'' or 1/2'' |
| 1068 | diaphragm pilot operated valve, ODS connection 3/8'' or 1/2'' |
| 1070 | diaphragm pilot operated valve, SAE Flare connection 5/8'' or 1/2'' |
| 1078 | diaphragm pilot operated valve, ODS connection 5/8'' or 1/2'' |
| 1079 | diaphragm pilot operated valve, ODS connection 7/8'' |
| 1090 | diaphragm pilot operated valve, SAE Flare connection 5/8'' or 3/4'' |
| 1098 | diaphragm pilot operated valve, ODS connection 7/8'' or 3/4'' |
| 1099 | diaphragm pilot operated valve, ODS connection 1.1/8'' |
| 1034 | piston pilot operated valves, SAE Flare connection 3/8'' or 1/2'' |
| 1038 | piston pilot operated valves, ODS connection 3/8'' or 1/2'' |
| 1040 | piston pilot operated valves, SAE Flare connection 1/2'' or 5/8'' |
| 1048 | piston pilot operated valves, ODS connection 5/8'' or 1/2'' |
| 1049 | piston pilot operated valves, ODS connection 7/8'' |
| 1050 | piston pilot operated valves, SAE Flare connection 5/8'' or 3/4'' |
| 1058 | piston pilot operated valves, ODS connection 5/8'' or 3/4'' or 7/8'' |
| 1059 | piston pilot operated valves, ODS connection 1.1/8'' |
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