贺德克过虑器FLNDW工作原理：

过滤器采用高强度的楔形滤网，通过压差控制、定时控制自动清洗滤芯。当过滤器内杂质积聚在滤芯表面引起进出口压差增大到设定值，或定时器达到预置时间时，电动控制箱发出信号，驱动反冲洗机构。当反冲洗吸口与滤芯进口正对时，排污阀打开，此时系统泄压排水，吸盘与滤芯内侧出现一个相对压力低于滤芯外侧水压的负压区，迫使部分净循环水从滤芯外侧流入滤芯内侧，吸附在滤芯内内壁上的杂质微粒随水流进穣盘内并从排污阀排出。特殊设计的滤网使得滤芯内部产生喷射效果，任何杂质都将被从光滑的内壁上冲走。

当贺德克过虑器FLNDW进出口压差恢复正常或定时器设定时间结束，整个过程中，物料不断流，反洗耗水量少，实现了连续化，自动化生产。过滤器广泛用于冶金、化工、石油、造纸、医药、食品、采矿、电力、城市给水领域。诸如工业废水， 循环水的过滤，乳化液的再生，废油过滤处理，冶金行业的连铸水系统、高炉水系统，热轧用高压水除鳞系统。是一种*、高效且易操作的全自动过滤装置。

型号：

HYDAC    FLND W 110 FDC 50 B 1.1/-A2
HYDAC    FLND W 140 FDC 50 C 1.1/-A2
HYDAC    FLND W 140 FDD 50 A 1.1/-B7
HYDAC    FLND W 140 FDD 50 D 1.1/-L24-A2.5-B3.5
HYDAC    FLND W 60 FDC 25 D 1.1/-V-L24
HYDAC    FLND W 60 FDD 25 D 1.1/-V-L24-A2
HYDAC    FLND W/HC 100 FDB 25 D 1.1/-V-L24-B7
HYDAC    FLND W/HC 100 FDB 50 D 1.1/-V-L24-B7
HYDAC    FLND W/HC 100 FDD 100 D 1.1/-L24
HYDAC    FLND W/HC 100 FDD 100 D 1.1/-L24-A1*
HYDAC    FLND W/HC 100 FDD 100 D 1.1/-L24-B7
HYDAC    FLND W/HC 100 FDD 25 A 1.1
HYDAC    FLND W/HC 100 FDD 25 B 1.1/-A2
HYDAC    FLND W/HC 100 FDD 25 B 1.1/-A2-B3.5
HYDAC    FLND W/HC 100 FDD 25 D 1.1/-L24-A2
HYDAC    FLND W/HC 100 FDD 25 D 1.1/-V-L24-B7
HYDAC    FLND W/HC 100 FDD 50 B 1.1
HYDAC    FLND W/HC 100 FDD 50 B 1.1/-B7
HYDAC    FLND W/HC 100 FDD 50 D 1.1/-L24
HYDAC    FLND W/HC 100 FDD 50 D 1.1/-V-L24
HYDAC    FLND W/HC 100 FDD 50 LE 1.1/-V-A2
HYDAC    FLND W/HC 100 FDI 100 D 1.1/-L24
HYDAC    FLND W/HC 110 FDC 100 LE 1.1
HYDAC    FLND W/HC 110 FDC 25 A 1.1/-B3.5
HYDAC    FLND W/HC 110 FDC 25 LE 1.1
HYDAC    FLND W/HC 110 FDC 50 A 1.1
HYDAC    FLND W/HC 110 FDC 50 D 1.1/-L24
HYDAC    FLND W/HC 140 FDD 25 D 1.1/-W-L24
HYDAC    FLND W/HC 140 FDD 25 LZ 1.1/-L24
HYDAC    FLND W/HC 160 DDE 100 A 1.2
HYDAC    FLND W/HC 160 DDE 100 A 1.2/-B7
HYDAC    FLND W/HC 160 DDE 100 B 1.2/-A2
HYDAC    FLND W/HC 160 DDE 100 B 1.2/-V-B7
HYDAC    FLND W/HC 160 DDE 100 C 1.2
HYDAC    FLND W/HC 160 DDE 100 C 1.2/-A2
HYDAC    FLND W/HC 160 DDE 100 D 1.2/-L24
HYDAC    FLND W/HC 160 DDE 100 D 1.2/-L24-A2.5-*
HYDAC    FLND W/HC 160 DDE 100 D 1.2/-L24-B7
HYDAC    FLND W/HC 160 DDE 100 D 1.2/-V-L24-B7
HYDAC    FLND W/HC 160 DDE 100 D 1.2/-W-L110
HYDAC    FLND W/HC 160 DDE 100 LZ 1.2/-A2-B0
HYDAC    FLND W/HC 160 DDE 100 LZ 1.2/-AV-LED
HYDAC    FLND W/HC 160 DDE 200 BM 1.2/-V-A2
HYDAC    FLND W/HC 160 DDE 200 D 1.2/-V-L24-B7
HYDAC    FLND W/HC 160 DDE 25 A 1.2
HYDAC    FLND W/HC 160 DDE 25 A 1.2/-B3.5
HYDAC    FLND W/HC 160 DDE 25 A 1.2/-V
HYDAC    FLND W/HC 160 DDE 25 B 1.2/-A2.5
HYDAC    FLND W/HC 160 DDE 25 B 1.2/-A2-B3.5
HYDAC    FLND W/HC 160 DDE 25 B 1.2/-B7
HYDAC    FLND W/HC 160 DDE 25 BM 1.2
HYDAC    FLND W/HC 160 DDE 25 D 1.2/-L110
HYDAC    FLND W/HC 160 DDE 25 D 1.2/-L24
HYDAC    FLND W/HC 160 DDE 25 D 1.2/-L24-A2
HYDAC    FLND W/HC 160 DDE 25 D 1.2/-L24-A2.5
HYDAC    FLND W/HC 160 DDE 25 D 1.2/-L24-A2-B3.5
HYDAC    FLND W/HC 160 DDE 25 D 1.2/-L24-B7
HYDAC    FLND W/HC 160 DDE 25 D 1.2/-LED
HYDAC    FLND W/HC 160 DDE 25 D 1.2/-V-L24-B7
HYDAC    FLND W/HC 160 DDE 25 D 1.2/-W-LED
HYDAC    FLND W/HC 160 DDE 25 LE 1.2
HYDAC    FLND W/HC 160 DDE 25 LZ 1.2/-A2-B3.5
HYDAC    FLND W/HC 160 DDE 25 Y 1.2
HYDAC    FLND W/HC 160 DDE 50 A 1.2
HYDAC    FLND W/HC 160 DDE 50 A 1.2/-B7
HYDAC    FLND W/HC 160 DDE 50 B 1.2
HYDAC    FLND W/HC 160 DDE 50 B 1.2/-A2
HYDAC    FLND W/HC 160 DDE 50 B 1.2/-A2.5-B3.5
HYDAC    FLND W/HC 160 DDE 50 B 1.2/-B7
HYDAC    FLND W/HC 160 DDE 50 D 1.2/-L110-A2
HYDAC    FLND W/HC 160 DDE 50 D 1.2/-L24
HYDAC    FLND W/HC 160 DDE 50 D 1.2/-L24-A1.5
HYDAC    FLND W/HC 160 DDE 50 D 1.2/-L24-A2.5
HYDAC    FLND W/HC 160 DDE 50 D 1.2/-L24-A2-B3.5
HYDAC    FLND W/HC 160 DDE 50 D 1.2/-LED
HYDAC    FLND W/HC 160 DDE 50 D 1.2/-V-LED
HYDAC    FLND W/HC 160 DDE 50 LE 1.2
HYDAC    FLND W/HC 160 DDE 50 LE 1.2/-A2.5-B3.5
HYDAC    FLND W/HC 160 DDE 50 LZ 1.2
HYDAC    FLND W/HC 160 DDF 25 B 1.2/-A2-B3.5
HYDAC    FLND W/HC 160 DDF 25 D 1.2/-L24
HYDAC    FLND W/HC 160 DDF 25 D 1.2/-L24-A2-B3.5
HYDAC    FLND W/HC 160 DDF 25 LE 1.2/-V-B7
HYDAC    FLND W/HC 160 DDF 50 D 1.2/-L24
HYDAC    FLND W/HC 160 DDK 100 A 1.2
HYDAC    FLND W/HC 160 DDK 100 D 1.2/-L24
HYDAC    FLND W/HC 160 DDK 100 LE 1.2/-A2
HYDAC    FLND W/HC 160 DDK 25 B 1.2
HYDAC    FLND W/HC 160 DDK 25 B 1.2/-B7
HYDAC    FLND W/HC 160 DDK 25 C 1.2/-A2.5
HYDAC    FLND W/HC 160 DDK 25 D 1.2/-L220
HYDAC    FLND W/HC 160 DDK 25 LE 1.2/-A2.5-B3.5
HYDAC    FLND W/HC 160 DDK 25 LE 1.2/-A2-B3.5
HYDAC    FLND W/HC 160 DDK 50 D 1.2/-LED
HYDAC    FLND W/HC 160 DDK 50 LE 1.2/-A2-B3.5
HYDAC    FLND W/HC 250 DDE 100 D 1.2/-L24-B7
HYDAC    FLND W/HC 250 DDE 25 B 1.2/-V-B7
HYDAC    FLND W/HC 250 DDE 25 D 1.2/-L24
HYDAC    FLND W/HC 250 DDF 100 A 1.2
HYDAC    FLND W/HC 250 DDF 100 B 1.2
HYDAC    FLND W/HC 250 DDF 100 B 1.2/-V-B7
HYDAC    FLND W/HC 250 DDF 100 C 1.2
HYDAC    FLND W/HC 250 DDF 100 C 1.2/-V
HYDAC    FLND W/HC 250 DDF 100 C 1.2/-W-A2
HYDAC    FLND W/HC 250 DDF 100 D 1.2/-L24
HYDAC    FLND W/HC 250 DDF 100 D 1.2/-L24-B7
HYDAC    FLND W/HC 250 DDF 100 LE 1.2
HYDAC    FLND W/HC 250 DDF 100 LZ 1.2/-BO-B7
HYDAC    FLND W/HC 250 DDF 200 A 1.2
HYDAC    FLND W/HC 250 DDF 200 B 1.2
HYDAC    FLND W/HC 250 DDF 200 B 1.2/-A2-B3.5
HYDAC    FLND W/HC 250 DDF 200 C 1.2/-V
HYDAC    FLND W/HC 250 DDF 200 D 1.2/-L24
HYDAC    FLND W/HC 250 DDF 200 D 1.2/-W-L24-A2
HYDAC    FLND W/HC 250 DDF 25 A 1.2
HYDAC    FLND W/HC 250 DDF 25 B 1.2/-A2-B3.5
HYDAC    FLND W/HC 250 DDF 25 B 1.2/-B7
HYDAC    FLND W/HC 250 DDF 25 B 1.2/-W
HYDAC    FLND W/HC 250 DDF 25 BM 1.2/-A2
HYDAC    FLND W/HC 250 DDF 25 C 1.2
HYDAC    FLND W/HC 250 DDF 25 D 1.2/-L24-A2-B3.5
HYDAC    FLND W/HC 250 DDF 25 D 1.2/-LED
HYDAC    FLND W/HC 250 DDF 25 LZ 1.2
HYDAC    FLND W/HC 250 DDF 25 LZ 1.2/-BO-B7
HYDAC    FLND W/HC 250 DDF 50 A 1.2
HYDAC    FLND W/HC 250 DDF 50 B 1.2
HYDAC    FLND W/HC 250 DDF 50 B 1.2/-V-B7
HYDAC    FLND W/HC 250 DDF 50 BM 1.2/-A2
HYDAC    FLND W/HC 250 DDF 50 C 1.2
HYDAC    FLND W/HC 250 DDF 50 D 1.2/-L24
HYDAC    FLND W/HC 250 DDF 50 D 1.2/-L24-B7
HYDAC    FLND W/HC 250 DDF 50 D 1.2/-V-L24
HYDAC    FLND W/HC 250 DDF 50 LE 1.2/-V-A2
HYDAC    FLND W/HC 250 DDF 50 LZ 1.2/-AV
HYDAC    FLND W/HC 250 DDF 50 V 1.2/-A2-B3.5
HYDAC    FLND W/HC 250 DDK 100 A 1.2
HYDAC    FLND W/HC 250 DDK 100 D 1.2/-L24
HYDAC    FLND W/HC 250 DDK 100 LE 1.2/-A2
HYDAC    FLND W/HC 250 DDK 100 LE 1.2/-A2.5-B3.5
HYDAC    FLND W/HC 250 DDK 100 LE 1.2/-A2-B3.5
HYDAC    FLND W/HC 250 DDK 25 D 1.2/-L24-A2-B3.5
HYDAC    FLND W/HC 250 DDK 25 LE 1.2/-A2
HYDAC    FLND W/HC 250 DDK 50 D 1.2/-L24-A2.5
HYDAC    FLND W/HC 40 FDB 100 D 1.1/-L24
HYDAC    FLND W/HC 40 FDB 25 B 1.1/-A2.5-B3.5
HYDAC    FLND W/HC 40 FDB 25 D 1.1/-L24
HYDAC    FLND W/HC 40 FDB 25 D 1.1/-L24-A1.5
HYDAC    FLND W/HC 40 FDB 50 B 1.1/-A2.5-B3.5
HYDAC    FLND W/HC 40 FDB 50 B 1.1/-B7
HYDAC    FLND W/HC 40 FDB 50 D 1.1/-V-L24-B7
HYDAC    FLND W/HC 40 FDC 50 D 1.1/-L24-A2-B3.5
HYDAC    FLND W/HC 40 FDD 100 A 1.1
HYDAC    FLND W/HC 40 FDD 100 D 1.1/-LED-A2
HYDAC    FLND W/HC 40 FDD 25 B 1.1/-A2
HYDAC    FLND W/HC 40 FDD 25 B 1.1/-A2-B3.5
HYDAC    FLND W/HC 40 FDD 25 B 1.1/-B7
HYDAC    FLND W/HC 40 FDD 25 C 1.1/-V-A2-B3.5
HYDAC    FLND W/HC 40 FDD 25 D 1.1/-L24
HYDAC    FLND W/HC 40 FDD 25 D 1.1/-V-LED
HYDAC    FLND W/HC 40 FDD 50 D 1.1/-LED-A2
HYDAC    FLND W/HC 400 DDE 200 D 1.2/-L24-B7
HYDAC    FLND W/HC 400 DDE 50 A 1.2/-V
HYDAC    FLND W/HC 400 DDE 50 B 1.2/-A2-B3.5
HYDAC    FLND W/HC 400 DDE 50 B 1.2/-V-A2-B3.5
HYDAC    FLND W/HC 400 DDF 100 C 1.2/-W
HYDAC    FLND W/HC 400 DDF 100 C 1.2/-W-A2
HYDAC    FLND W/HC 400 DDF 100 D 1.2/-L24
HYDAC    FLND W/HC 400 DDF 25 B 1.2
HYDAC    FLND W/HC 400 DDF 25 C 1.2
HYDAC    FLND W/HC 400 DDF 50 A 1.2
HYDAC    FLND W/HC 400 DDK 100 A 1.2
HYDAC    FLND W/HC 400 DDK 100 C 1.2
HYDAC    FLND W/HC 400 DDK 100 C 1.2/-A2-B3.5
HYDAC    FLND W/HC 400 DDK 100 C 1.2/-V-B7
HYDAC    FLND W/HC 400 DDK 100 D 1.2/-LED
HYDAC    FLND W/HC 400 DDK 100 LE 1.2
HYDAC    FLND W/HC 400 DDK 100 LE 1.2/-A2.5-B3.5
HYDAC    FLND W/HC 400 DDK 100 LZ 1.2
HYDAC    FLND W/HC 400 DDK 100 LZ 1.2/-V-BO
HYDAC    FLND W/HC 400 DDK 200 C 1.2/-W-A1
HYDAC    FLND W/HC 400 DDK 25 B 1.2
HYDAC    FLND W/HC 400 DDK 25 B 1.2/-A2-B3.5
HYDAC    FLND W/HC 400 DDK 25 C 1.2/-B7
HYDAC    FLND W/HC 400 DDK 25 C 1.2/-V
HYDAC    FLND W/HC 400 DDK 25 D 1.2/-LED
HYDAC    FLND W/HC 400 DDK 25 D 1.2/-V-L24
HYDAC    FLND W/HC 400 DDK 25 LE 1.2/-A2-B3.5
HYDAC    FLND W/HC 400 DDK 50 A 1.2/-B3.5
HYDAC    FLND W/HC 400 DDK 50 A 1.2/-V-B7
HYDAC    FLND W/HC 400 DDK 50 B 1.2
HYDAC    FLND W/HC 400 DDK 50 B 1.2/-A2-B3.5
HYDAC    FLND W/HC 400 DDK 50 C 1.2
HYDAC    FLND W/HC 400 DDK 50 D 1.2/-LED-A1.5
HYDAC    FLND W/HC 400 DDK 50 LE 1.2
HYDAC    FLND W/HC 400 DDK 50 LZ 1.2/-B7
HYDAC    FLND W/HC 400 WDF 100 UE 1.2
HYDAC    FLND W/HC 60 FDB 25 A 1.1
HYDAC    FLND W/HC 60 FDB 50 D 1.1/-L24
HYDAC    FLND W/HC 60 FDD 100 D 1.1/-L24
HYDAC    FLND W/HC 60 FDD 25 A 1.1/-W
HYDAC    FLND W/HC 60 FDD 25 B 1.1
HYDAC    FLND W/HC 63 FDB 25 B 1.1/-A2.5
HYDAC    FLND W/HC 63 FDB 50 A 1.1
HYDAC    FLND W/HC 63 FDC 100 B 1.1/-V-A2
HYDAC    FLND W/HC 63 FDC 25 B 1.1
HYDAC    FLND W/HC 63 FDC 25 D 1.1/-V-L24
HYDAC    FLND W/HC 63 FDC 50 B 1.1/-A2.5-B3.5
HYDAC    FLND W/HC 63 FDC 50 B 1.1/-B7
HYDAC    FLND W/HC 63 FDC 50 D 1.1/-L24
HYDAC    FLND W/HC 63 FDD 25 B 1.1/-B7
HYDAC    FLND W/HC 63 FDD 25 B 1.1/-V
HYDAC    FLND W/HC 63 FDD 25 C 1.1/-V
HYDAC    FLND W/HC 63 FDD 25 D 1.1/-L24-A2
HYDAC    FLND W/HC 63 FDD 25 D 1.1/-L24-A2.5
HYDAC    FLND W/HC 63 FDD 50 C 1.1/-V