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Castel DF316/3 3/8" SAE Flare threaded filter drier
The Castel DF316/3 is a hermetic solid core filter drier designed for use in refrigeration and air conditioning systems. The product is used to protect the system from moisture and solid contaminants that can enter the refrigerant circuit during installation, service, or operation.
The DF316/3 model features 3/8" SAE Flare threaded connections. The filter is primarily used on the liquid line, where it supports the correct and safe operation of the refrigeration system.
The product is designed for use with refrigerants according to ASHRAE 34:2019, belonging to safety classes A1, A2L, or A3: HCFC — R22; HFC — R134a, R404A, R407C, R410A, R507; HFO — R1234ze; HFO + HFC blends — R448A, R449A, R450A, R452A, R513A, R515A, R515B; HC — R290, R600, R600a, R1270.
Technical Data
| Series | DF Classic Line |
| International code | 163 |
| Connection type | SAE Flare |
| SAE Flare connection diameter Ø [in.] | 3/8 |
| SAE Flare connection diameter Ø [mm] | – |
| Nominal volume [cm³] | 250 |
| Maximum working pressure PS [bar] | 50 |
| MWP according to UL [psi] | 680 |
| Minimum working temperature TS [°C] | -40 |
| Maximum working temperature TS [°C] | +150 |
| Quantity per master carton [pcs] | 15 |







