POLYHEDRA

Castel step-motor expansion valves series 271, 272, 273 regulate
the flow of the liquid refrigerant into evaporators by modulating
the valve shutter position in a calibrated orifice, allowing a wide
capacity regulation range.

Accessories for use with the following ASHRAE 34:2019 refrigerants, Class A1, A2L, or A3:

- HFC (R134a, R32, R404A, R407C, R410A, R507)
- HFO and HFO/HFC blends (R1234ze, R1234yf, R448A, R449A, R450A, R452A, R452B, R454B, R513A)
- HC (R290, R600, R600a, R1270)

Maximum allowable pressure PS = 50 bar.
Allowable temperatures TS = -40 / +60 °C

Coils with the new 'FAST LOCK' fixing system, series 9300 and 9320, and coils with gear fixing systems, series 9110, 9120 and 9160.
Fast-on connections type DIN 43650/A for coils in series: 9120, 9160, 9300 and 9320; co-moulded cables for series 9110 coils. Protection rating IP65; IP68 for series 9160 coils coupled with series 9155 connectors.
Available voltages; 24 VAC - 50/60 Hz, 110 VAC - 50/60 Hz, 220/230 VAC - 50/60 Hz, 240 VAC - 50/60 Hz, 380 VAC - 50/60 Hz, 12 VDC, 24 VDC, 27 VDC, 48 VDC.
Connectors in series 9150, normalized DIN 43650, to wire, with IP65 protection rating. Connectors in series 9900, again normalized DIN 43650, pre-wired with various cable lengths, with IP65 protection rating. Connectors in series 9155, to wire, with IP65/68 protection rating.

Solenoid expansion valves with the 'EX' suffix are compliant with the ESR of Directive 2014/34/EU ' ATEX. This equipment is suitable for use on refrigeration systems located in areas classified as 'Zone 2' risk of explosion, according to the definition in Annex I of Directive 1999/92/EC.
Accessories for use with the following ASHRAE 34:2019 refrigerants, Class A1, A2L, or A3:
- HFC (R134a, R32, R404A, R407C, R410A, R507)
- HFO and HFO/HFC blends (R1234ze, R1234yf, R448A, R449A, R450A, R452A, R452B, R454B, R513A)
- HC (R290, R600, R600a, R1270)

Maximum allowable pressure PS = 50 bar.
Allowable temperatures TS = -40 / +100 °C

These valves are only sold in the model with the ATEX certified coil (A6 suffix), with 9 nozzles assembled for an increasing output from 2 to 36 kW with R290.

Accessories for use with the following ASHRAE 34:2019 refrigerants, Class A1, A2L, or A3:
- HFC (R134a, R32, R404A, R407C, R410A, R507)
- HFO and HFO/HFC blends (R1234ze, R1234yf, R448A, R449A, R450A, R452A, R452B, R454B, R513A)
- HC (R290, R600, R600a, R1270)
Maximum allowable pressure PS = 50 bar.
Allowable temperatures TS = -40 / +100 °C
These valves are only sold in the model without the coil (S suffix), with 9 nozzles assembled for an increasing output from 1 to 22 kW with R410A.