ATEX certified solenoid expansion valves, POLYHEDRA line
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.