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流量阀
流量阀适用于需要进行流量控制的水系统中，尤其适合于供热，空调等非腐蚀性液体介质的流量控制；安装在水系统中，经运行前的一次调节，即可使系统流量自动恒定在要求的设定值。
流量阀适用于需要进行流量控制的水系统中，尤其适合于供热，空调等非腐蚀性液体介质的流量控制；安装在水系统中，经运行前的一次调节，即可使系统流量自动恒定在要求的设定值。自动消除水系统中因各种因素引起的水力失调现象，保持用户所需流量，克服“冷热不均”提高供热，空调的室温，提高系统能效，实现节能，是供热、空调系统实现“计量收费”的理想配套产品。

定流量阀和横流量调节阀都是变阻力设备，它们是以流体的差压作为动力，并根据系统工况（差压）变化，自动改变阻力系数，保持流量阀和横流量的恒定，通过恒定各个支路的流量来实现整个系统流量的均衡输配，消除冷热不均的现象。在总流量足够的条件下，各个支路的流量变化不会互相影响，系统比较稳定。
定流量阀和恒流量调节阀不同的是：
1、定流量阀只有一个阀瓣，由这个阀瓣直接感受阀门的前后差压，执行改变阀门阻力的动作，可成为“直动式变阻力阀”，它不能在线调节流量，因此使用定流量阀无法实施改变总流量的节能运行，只有在一些中央空调系统中见到。

2FRE10-4X/50LBK4M力士乐二通流量控制阀

力士乐REXROTH比例二通流量控制阀2FRE
R900379787 2FRE10-4X/60LSO150
R900485690 2FRE16-4X/125L/5
R900398897 2FRE16-4X/50L
R900417187 2FRE16-4X/60LB
R900412644 2FRE10-4X/10LBZ4M
R900344246 2FRE10-4X/10LBZ4V
R900418015 2FRE10-4X/10LZ4M
R900487922 2FRE10-4X/10LZ4V
R900496448 2FRE10-4X/10QBZ4M
R900496447 2FRE10-4X/10QZ4M
R900914429 2FRE10-4X/10QZ4M-220
R900536905 2FRE10-4X/10QZ4V
R900963710 2FRE10-4X/16LBK4M=LB
R900335244 2FRE10-4X/16LBV
R900417874 2FRE10-4X/16LBZ4M
R900558736 2FRE10-4X/16LBZ4M=LB
R900493805 2FRE10-4X/16LZ4M
R900340421 2FRE10-4X/16LZ4V
R900496446 2FRE10-4X/16QBZ4M
R900496445 2FRE10-4X/16QZ4M
R900549112 2FRE10-4X/16QZ4M-220
R900591497 2FRE10-4X/25LBMK
R900488159 2FRE10-4X/25LBV
R900416551 2FRE10-4X/25LBZ4M
R900411869 2FRE10-4X/25LZ4M
R900520242 2FRE10-4X/25LZ4M-250
R900485279 2FRE10-4X/25LZ4V
R900491479 2FRE10-4X/25QBZ4M
R900375533 2FRE10-4X/25QBZ4V
R900415342 2FRE10-4X/25QZ4M
R900584810 2FRE10-4X/25QZ4V
R900491645 2FRE10-4X/2QEBZ4M
R900418854 2FRE10-4X/2QEZ4M
R900492604 2FRE10-4X/36L
R900535475 2FRE10-4X/36LBZ4M
R900454595 2FRE10-4X/50L-150
R900419483 2FRE10-4X/50LBZ4M
R900562129 2FRE10-4X/50LBZ4M-229
R900489933 2FRE10-4X/50LBZ4V
R900415446 2FRE10-4X/50LZ4M
R900520241 2FRE10-4X/50LZ4M-220
R900338655 2FRE10-4X/50LZ4V
R900488809 2FRE10-4X/50QB
R900486100 2FRE10-4X/5LBV
R900496441 2FRE10-4X/5LBZ4M
R900415493 2FRE10-4X/5LZ4M
R900903885 2FRE10-4X/5LZ4V
R900496442 2FRE10-4X/5QBZ4M
R900518324 2FRE10-4X/5QBZ4V
R900496443 2FRE10-4X/5QEBZ4M
R900496440 2FRE10-4X/5QEZ4M
R900927423 2FRE10-4X/5QEZ4V
R900496439 2FRE10-4X/5QZ4M
R900485280 2FRE10-4X/5QZ4V
R900496444 2FRE10-4X/60LBZ4M
R900333574 2FRE10-4X/60LBZ4V
R900418109 2FRE10-4X/60LZ4M
R900487902 2FRE10-4X/60LZ4V
R900349166 2FRE10-4X/8LE
R901434134 2FRE10-4X=25LBK4M
R900395331 2FRE16-4X/100L-229
R900774344 2FRE16-4X/100LBK4M=LB
R900496331 2FRE16-4X/100LBZ4M
R900357770 2FRE16-4X/100LBZ4V
R900371296 2FRE16-4X/100LV
R900415314 2FRE16-4X/100LZ4M
R901040916 2FRE16-4X/125LBK4V
R900496450 2FRE16-4X/125LBZ4M
R900560941 2FRE16-4X/125LBZ4M-220
R900374275 2FRE16-4X/125LBZ4V
R901105144 2FRE16-4X/125LK4V
R900536412 2FRE16-4X/125LMK
R900410927 2FRE16-4X/125LZ4M
R900351644 2FRE16-4X/125LZ4V
R900343923 2FRE16-4X/160L-150
R900388231 2FRE16-4X/160L-228
R900960716 2FRE16-4X/160LBK4M=LB
R900591496 2FRE16-4X/160LBMK
R900492259 2FRE16-4X/160LBZ4M
R900915471 2FRE16-4X/160LBZ4M-220
R900558737 2FRE16-4X/160LBZ4M=LB
R900379092 2FRE16-4X/160LBZ4V
R900419129 2FRE16-4X/160LZ4M
R900352062 2FRE16-4X/160LZ4V
R900342613 2FRE16-4X/170L
R900351133 2FRE16-4X/170L-150
R901126027 2FRE16-4X/60LBK4V
R900394447 2FRE16-4X/60LBZ4M
R900532553 2FRE16-4X/60LZ4M-220
R900343922 2FRE16-4X/80L-150
R900364486 2FRE16-4X/80L-220
R901070659 2FRE16-4X/80LBK4V
R900492940 2FRE16-4X/80LBZ4M
R900558738 2FRE16-4X/80LBZ4M=LB
R900374681 2FRE16-4X/80LBZ4V
R900395330 2FRE16-4X/80LK4M-229
R900580645 2FRE16-4X/80LV-241
R900496449 2FRE16-4X/80LZ4M
R900349585 2FRE16-4X/80LZ4V
R900576621 2FRE16-4X=125LZ4M
R900576293 2FRE16-4X=160LBZ4M=PL
R900576622 2FRE16-4X=160LZ4M
R900576624 2FRE16-4X=80LZ4M
力士乐REXROTH比例流量控制阀，无位置反馈功能3(2)FREX
0811403013 2FREX10B-1X/70L1G24-25N9Z4MM
0811403123 2FREX6B-1X/15L1G24-25N9Z4MM
0811403119 2FREX6B-1X/35L1G24-25N9Z4MM-254
0811403118 2FREX6B-1X/7,5L1G24-25N9Z4MM-254
0811403016 3FREX10B-1X/10L2G24-25N12K4-MM-261
0811403015 3FREX10B-1X/60L2G24-25N12K4MM-253
0811403011 3FREX10B-1X/60L2G24-25N12Z4MM
0811403133 3FREX6B-1X/15L2G24-25N9Z4MM
0811403135 3FREX6B-1X/20L2G24-25N9Z4MM-259
0811403132 3FREX6B-1X/24L2G24-25N9Z4MM
0811403116 3FREX6B-1X/35L2G24-25N12Z4MM-254
0811403111 3FREX6B-1X/35L2G24-25N12Z4MM-254
0811403113 3FREX6B-1X/35L2G24-25N9Z4MM
0811403110 3FREX6B-1X/7,5L2G24-25N12Z4MM-254
0811403115 3FREX6B-1X/7,5L2G24-25N12Z4MM-254
0811403112 3FREX6B-1X/7,5L2G24-25N9Z4MM
0811403010 3FREX10B-1X/60L2G24-25N9Z4MM
0811403026 3FREX10B-1X/60L2G24-25N9Z4MM-260
0811403134 3FREX6B-1X/35L2G24-25N9Z4MM-255
力士乐REXROTH带感应位置传感器的比例流量控制阀3FREZ
R901265546 3FREZ10B-1X/10L2G24-27Z4MM-261
0811403012 3FREZ10B-1X/80L2G24-27Z4MM
0811403117 3FREZ6B-1X/10L2G24-27Z4MM-254
0811403121 3FREZ6B-1X/2,6L2G24-27Z4MM
0811403114 3FREZ6B-1X/35L2G24-27Z4MM
0811403120 3FREZ6B-1X/35L2G24-27Z4MM-257
力士乐REXROTH比例流量控制阀，配有内置集成电子放大版（OBE）和电感式位置传感器3FREEZ
0811403019 3FREEZ10B-1X/70L2G24K31A1MM
R901121358 3FREEZ10B-1X/70L2G24K31F1MM
0811403150 3FREEZ6B-1X/10L2G24K31A1MM-258
R901239141 3FREEZ6B-1X/10L2G24K31F1MM-258
0811403151 3FREEZ6B-1X/35L2G24K31A1MM
0811403152 3FREEZ6B-1X/35L2G24K31F1MM
R901250716 3FREEZ6B-1X/7,5L2G24K31F1MM
力士乐REXROTH比例流量控制阀，带有集成压力补偿器KUDSR
R901287409 KUDSR3C1A/FN9V
R901265879 KUDSR3C2A/FN9V
R901255657 KUDSR3CA/FN9V

2FRE10-4X/50LBK4M力士乐二通流量控制阀

恒流量调节阀是以补偿方式时行变阻力的动作，它有俩个阀瓣，一个是调节阀瓣，用于补偿节流孔前后的差压，因此可成为“补偿式变阻力调节阀”其原理是：利用节流孔前后的差压，作为补偿动作的驱动力，补偿并保持节流孔前后差压的稳定，从而保持流量的恒定，调节节流孔的大小就可获得不同的流量。因此，它既可以调节流量。也可以在系统水利工况变化时保持流量恒定，在系统中它既可恒定各个支路的流量，实现流量的均衡输配，也可以随时改变和调节各支路的流量，实现动态平衡。如果每年在初寒到严寒和严寒到末寒是进行俩次流量调节，即可实现“分阶段改变流量的质调节”的节能运行方式。恒流量调节阀的调节简单方便，但对于较大的系统来说，每年进行俩次调节仍然是个负担，而且恒流量调节阀的价格高，虽然当年可以收回，但对用户仍有较大的心理压力。

2FRE10-4X/50LBK4M力士乐二通流量控制阀

力士乐REXROTH比例流量控制阀
力士乐REXROTH比例节流阀
力士乐REXROTH二通比例节流阀（插装阀形式）FE
R900594656 FE16C-2X/100LZ4M
R900426990 FE16C-2X/140LZ4M
R900328189 FE16C-2X/140LZ4M-15
R900454879 FE16C-2X/140LZ4V
R900517889 FE16C-2X/140QN9Z4M
R900396258 FE16C-2X/140QZ4M
R900903850 FE16C-2X/140QZ4M=LB
R900396779 FE16C-2X/140QZ4V
R900393946 FE16C-2X/190LZ4M
R900580990 FE16C-2X/190LZ4V
R900587892 FE16C-2X/190LZ4V-26
R900565391 FE16C-2X/25LZ4M
R900550030 FE16C-2X/25LZ4V
R900472486 FE16C-2X/25QZ4M
R900591047 FE16C-2X/25QZ4M-27
R900591256 FE16C-2X/50LZ4M
R900915923 FE16C-2X/50LZ4V
R901069406 FE16C-2X/50QK4M
R900976696 FE16C-2X/50QK4M=LB
R900398902 FE16C-2X/50QZ4M
R900587480 FE16C-2X/50QZ4M-27
R900583187 FE16C-2X/60LZ4M-1
R900448394 FE16C-2X/80LZ4M
R900582879 FE16C2X/140LM-25
R900589519 FE16C2X/140LV-26
R900396356 FE16C2X/140QMK
R900443234 FE16C2X/190LM-21
R900583218 FE16C2X/190LM-25
R900404546 FE16C2X/190LMK
R900581669 FE16C2X/190LN9V
R900434577 FE16C2X/190LV-22
R900387275 FE16C2X/LPM
R900393271 FE16C2X/LPMSO15
R900394705 FE16C2X/QPM
R900447876 FE16CA2X/80LM
力士乐REXROTH二通比例节流阀（插装阀形式）FEE
R901186873 FEE16C-2X/100LK0G1V
R901276051 FEE16C-2X/140QK0G1M
R901382854 FEE16C-2X/190LK0B1V
力士乐REXROTH二通比例节流阀（插装阀形式）FES
R901308910 FES25CA-3X/315LK4M=LB
R901013914 FES32CA-3X/450LK4M=LB
R901042748 FES32CA-3X/450LN9K4M
R901391902 FES40CA-3X/670LZ2M
R901041300 FES50CA-3X/1400LJZ2M
R901266999 FES63CA-3X/1800LK4M-16
力士乐REXROTH二通比例节流阀（插装阀形式）FESE
R901054794 FESE25CA-3X/200QK0B1M
R901045862 FESE25CA-3X/200QK0G1M
R900767349 FESE25CA-3X/315LK0B1M=LB
R901435821 FESE25CA-3X/315LK0B1V
R901312977 FESE25CA-3X/315LK0G1V
R901012850 FESE32CA-3X/450LK0B1M=LB
R901174775 FESE32CA-3X/450LK0B1V
R901033548 FESE32CA-3X/450LK0G1M
R901052417 FESE32CA-3X/450LK0G1V
R901222088 FESE40CA-3X/670LK0B1V
R901216503 FESE40CA-3X/670LK0G1V
R901047747 FESE50CA-3X/1400LK0G1V
R901276354 FESE63CA-3X/1800LK0G1V
力士乐REXROTH比例流量控制阀
力士乐REXROTH比例二通流量控制阀2FRE 6
R900373509 2FRE6A-2X/10QZ4MV
R900361710 2FRE6A-2X/10QZ4RV
R900377730 2FRE6A-2X/16QZ4MV
R900364360 2FRE6A-2X/16QZ4RV
R900366337 2FRE6A-2X/1LMV-2
R900904427 2FRE6A-2X/1LZ4MV
R901026943 2FRE6A-2X/25LK4MV
R900364361 2FRE6A-2X/25QZ4MV
R900365627 2FRE6A-2X/25QZ4RV
R900372150 2FRE6A-2X/2LRV-2
R900369231 2FRE6A-2X/2LZ4MV
R900374749 2FRE6A-2X/2LZ4RV
R900368305 2FRE6A-2X/2QEZ4MV
R900360077 2FRE6A-2X/2QEZ4RV
R900365426 2FRE6A-2X/3QZ4MV
R900361692 2FRE6A-2X/3QZ4RV
R900377729 2FRE6A-2X/6QZ4MV
R900362947 2FRE6A-2X/6QZ4RV
R900367526 2FRE6A-2X/8LZ4MV
R900586987 2FRE6A-2X/8LZ4RV
R901312090 2FRE6B-2X/10LK4MV
R900430774 2FRE6B-2X/10LZ4MV
R900364021 2FRE6B-2X/10QZ4MV
R900362477 2FRE6B-2X/10QZ4RV
R900430773 2FRE6B-2X/16LZ4MV
R900364362 2FRE6B-2X/16QZ4MV
R900363693 2FRE6B-2X/16QZ4RV
R900381592 2FRE6B-2X/1LRV-2
R900368550 2FRE6B-2X/1LZ4MV
R900362442 2FRE6B-2X/1LZ4MV-2
R900469875 2FRE6B-2X/1LZ4RV
R900500570 2FRE6B-2X/25LZ4MV
R900959320 2FRE6B-2X/25QK4MV=LB
R900362098 2FRE6B-2X/25QZ4MV
R900558740 2FRE6B-2X/25QZ4MV=LB
R900360844 2FRE6B-2X/25QZ4RV
R900389239 2FRE6B-2X/2LZ4MV
R900363838 2FRE6B-2X/2LZ4RV
R900935756 2FRE6B-2X/2QEMV
R900426384 2FRE6B-2X/2QEMV-233
R900381238 2FRE6B-2X/2QERV-2
R900364092 2FRE6B-2X/2QEZ4MV
R900362008 2FRE6B-2X/2QEZ4RV
R900527082 2FRE6B-2X/2QEZ4RV-3
R900366250 2FRE6B-2X/3QZ4MV
R900361691 2FRE6B-2X/3QZ4RV
R900362193 2FRE6B-2X/6QZ4MV
R900367424 2FRE6B-2X/6QZ4RV
R900370962 2FRE6B-2X/8LZ4MV
R900475158 2FRE6B-2X/8LZ4RV

2FRE10-4X/50LBK4M力士乐二通流量控制阀