Duplex Pressure Filters (Hydac)
Suitable for operation between 2.5 and 420 bar, the Hydac range of duplex pressure filters is widely used across industry in heavy, mobile and small-scale hydraulics systems.
DFDK-Series
- Nominal pressure:
- 160 bar (DFDK with type code 3.X)
- 315 bar (DFDK with type code 1.X and 2.X)
- Fatigue strength: At nominal pressure 106 cycles from 0 to nominal pressure
- Temperature range:
- -10° C to 100° C
- -30° C to -10° C: pmax= 157.5 bar
- Material of filter head: EN-GJS-400-15
- Material of filter bowl: Steel
- Type of clogging indicator: VD (differential pressure measurement up to 420 bar operating pressure)
- Pressure setting of the clogging indicator: 8 bar (others on request)
FMND-Series
- Nominal pressure:
- 210 bar (FMND 160 to 400)
- 250 bar (FMND 40 to 140)
- Fatigue strength: At nominal pressure 106 cycles from 0 to nominal pressure
- Temperature range: -10° C to 100° C
- Material of filter head: EN-GJS-400-15
- Material of filter bowl: Steel
- Type of indicator:
- VM (Diff. pressure indicator up to 210 bar operating pressure)
- VD (Diff. pressure indicator up to 420 bar operating pressure)
- Pressure setting of the clogging indicator: 2.5 bar or 5 bar (others on request)
- Bypass cracking pressure (optional): 3.5 bar or 7 bar (others on request)
RFLD-Series
- Nominal pressure:
- 16 bar (RFLD 2701)
- 25 bar (RFLD 331-1321, 853)
- 40 bar (RFLD 111-241, 503, 662-1322)
- 64 bar (RFLD 332-502)
- Temperature range: -10 °C to +100 °C
- Material of filter housing and cover plate: EN-GJS-400-15: = 1
- Material code (final digit of filter size): EN-GJS-400-18LT: = only RFLD 2701; GP 240 GH+N: = 2; Stainless steel 1.4581: = 3
- Type of clogging indicator: VM (differential pressure measurement up to 210 bar operating pressure)
- Pressure setting of the clogging indicator: 2 bar (others on request)
- Bypass cracking pressure: 3 bar (others on request)
FLND-Series
- Nominal pressure:
- 25 bar (FLND 160 to 400)
- 63 bar (FLND 40 to 140)
- Fatigue strength: At nominal pressure 106 cycles from 0 to nominal pressure
- Temperature range: -10° C to 100° C
- Material of filter head: Aluminium
- Material of filter bowl: Aluminium (FLND 100 and 140: Steel)
- Type of clogging indicator: VM (differential pressure measurement up to 210 bar operating pressure)
- Pressure setting of the clogging indicator: 2.5 bar or 5 bar (others on request)
- Bypass cracking pressure (optional): 3.5 bar or 7 bar (others on request)
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