4WRZE25W8-220-7X/6EG24N9ETK31/F1D3M比例控制阀

主营产品:

液压元件:柱塞泵、叶片泵、齿轮泵、马达、截止阀、方向阀、减压阀、流量控制阀、比例阀、伺服阀、插装阀、电液换向阀、电磁阀、电磁球阀、蓄能器、放大版、压力继电器、压力传感器。

气动元件:

气动阀、阀岛、阀组、电磁阀、换向阀、压力调节阀、流量控制阀,止回阀、气缸和驱动装置、压缩空气气源处理单元、真空技术、传感器、气动连接技术,电气连接技术。

电控伺服:

伺服驱动器,伺服电机、PLC模块、I/O模块、框架模块、电源模块、数据接口模块、键相位模块、继电器模块、检测时速模块、温度模块、显示屏、传感器、探头、前置器、延伸电缆。

比例控制技术是在开关控制技术和伺服控制技术之间的过渡技术，采用比例放大器控制比例电磁铁，实现对比例阀的连续控制，从而实现对液压系统压力、流量、方向的无级调节；但是用比例方向阀进行速度控制时，如果负载是变化的，那么执行元件的速度就会受负载变化的影响（负载小时速度快，负载大时速度慢）；于是在系统设计时，人们引入了压力补偿器，它可以使比例阀阀口的压差保持恒定，使执行元件的速度不受负载变化的影响。

4WRZE25W8-220-7X/6EG24N9ETK31/F1D3M比例控制阀

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力士乐REXROTH三位四通比例方向阀、先导式、不带电气位置反馈，不带集成电子（OBE）4WRH

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力士乐REXROTH二位五通和三位五通比例方向阀、先导式、不带电气位置反馈，不带集成电子（OBE）5WRZ

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力士乐REXROTH二位五通和三位五通比例方向阀、先导式、不带电气位置反馈，带集成式放大版（OBE）5WRZE

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R901107886 5WRZE52E1000-7X/6EG24NJK31/F1D3M

R901077234 5WRZE52W6-1000-7X/6EG24K31/A1M

R901443683 5WRZE52W6-1000-7X/6EG24N9K31/A1D3M

R900700417 5WRZE52W6-1000-7X/6EG24N9K31/A1D3V

R901155696 5WRZE52W6-1000-7X/6EG24N9K31/F1D3M

R901067858 5WRZE52W6-1000-7X/6EG24N9K31/F1M

R900975333 5WRZE52W6-1000-7X/6EG24N9K31/F1V

R901003340 5WRZE52W8-1000-7X/6EG24K31/F1D3M

R901003054 5WRZE52W8-1000-7X/6EG24K31/F1D3V

R901015674 5WRZE52W8-1000-7X/6EG24N9K31/A1D3M

R900781727 5WRZE52W8-1000-7X/6EG24N9K31/F1D3M

R901195961 5WRZE52W8-1000-7X/6EG24N9K31/F1D3V

R901072021 5WRZE52W8-1000-7X/6EG24N9K31/F1M

R901036822 5WRZE52W8-1000-7X/6EG24N9K31/F1V

R901113119 5WRZE52W9-1000-7X/6EG24N9K31/A1D3M

R978022972 5WRZE52E1000-7X/6EG24N9K31/A1D3MSO43A879

力士乐REXROTH5 / 2和5 / 3比例方向阀、先导式、不带电气位置反馈，不带集成电子（OBE）5WRH

R900775146 5WRH52E1-1000-7X//M

R900744527 5WRH52E1000-7X//V

R901236191 5WRH52E1000-7X/M

R900770401 5WRH52W6-1000-7X//M

力士乐REXROTH二位四通和三位四通比例方向阀，先导操作，无电位置反馈，阀芯位置显示4WRZM

R901423514 4WRZM10E1-50-1X/6EG24N9K4/D3M

R901425083 4WRZM10E1-50-1X=6EG24N9K4/D3M

R901279371 4WRZM10E1-85-1X/6EG24ETK4/D3M

R901266355 4WRZM10E25-1X/6EG24N6ETK4/M

R901332244 4WRZM10E50-1X/6EG24ETK4/D3M

R901246445 4WRZM10E50-1X/6EG24K4/M

R901365083 4WRZM10E50-1X/6EG24N6ETK4/M

R901364821 4WRZM10E50-1X/6EG24N9ETK4/M

R901246452 4WRZM10E85-1X/6EG24K4/M

R901441005 4WRZM10W6-25-1X/6EG24N9ETK4/D3M

R901440974 4WRZM10W6-50-1X/6EG24N9ETK4/D3M

R901322570 4WRZM10W6-50-1X/6EG24N9K4/D3M

R901338644 4WRZM10W6-85-1X/6EG24N9ETK4/D3M

R901355785 4WRZM10W6A85-1X/6EG24ETK4/D3M

R901246459 4WRZM16E1-150-1X/6EG24K4/M

R901291779 4WRZM16E100-1X/6EG24K4/M

R901293049 4WRZM16E150-1X/6EG24K4/D3M

R901246456 4WRZM16E150-1X/6EG24K4/M

R901280257 4WRZM16E150-1X/6EG24K4/WG082M

R901277267 4WRZM16W6-150-1X/6EG24N9ETK4/D3M

R901156778 4WRZM16W8-150-1X/6EG24N9EK4/D3M

R901366155 4WRZM25E220-1X/6EG24ETK4/D3M

R901346214 4WRZM25E220-1X/6EG24K4/D3M

R901246470 4WRZM25E220-1X/6EG24K4/M

R901365594 4WRZM25E220-1X/6EG24N9ETK4/V

R901396384 4WRZM25E220-1X/6EG24TK4/D3M

R901246471 4WRZM25E325-1X/6EG24K4/M

R901253336 4WRZM25W6-325-1X/6EG24N9ETK4/D3M

R901272129 4WRZM25W6-325-1X/6EG24N9K4/D3M

R901269660 4WRZM25W6-325-1X/6EG24N9K4/WG082M

R901281699 4WRZM25W6-325-1X=6EG24N9ETK4/D3M

R901353250 4WRZM25W8-220-1X/6EG24N9EK4/D3M

R901280632 4WRZM25W9-325-1X/6EG24N9ETK4/D3M

力士乐REXROTH4 / 2和4 / 3比例方向阀、先导式、不带电气位置反馈，带集成式放大版（OBE），阀芯位置显示4WRZEM

R901246472 4WRZEM10E1-85-1X/6EG24K31/A1M

R901155709 4WRZEM10E25-1X/6EG24K31/A1D3M

R901155716 4WRZEM10E50-1X/6EG24K31/A1D3M

R901246476 4WRZEM10E50-1X/6EG24K31/A1M

R901275800 4WRZEM10E85-1X/6EG24EK31/A1M

R901233462 4WRZEM10E85-1X/6EG24ETK31/A1D3M

R901155717 4WRZEM10E85-1X/6EG24K31/A1D3M

R901246477 4WRZEM10E85-1X/6EG24K31/A1M

R901405706 4WRZEM10E85-1X/6EG24K31/A1V

R901416618 4WRZEM10E85-1X/6EG24TK31/A1D3M

R901386982 4WRZEM10E85-1X/6EG24TK31/F1D3M

R901292216 4WRZEM10W6-85-1X/6EG24K31/A1M

R901226259 4WRZEM16E1-100-1X/6EG24K31/A1M

R901313905 4WRZEM16E1-100-1X/6EG24N9K31/A1M

R901155718 4WRZEM16E100-1X/6EG24K31/A1D3M

R901246478 4WRZEM16E100-1X/6EG24K31/A1M

R901383928 4WRZEM16E100-1X/6EG24N6ETK31/A1D3M

R901383367 4WRZEM16E100-1X/6EG24N9ETK31/A1D3M

R901382685 4WRZEM16E125-1X/6EG24N9ETK31/A1V

R901273599 4WRZEM16E150-1X/6EG24EK31/F1D3M

R901283038 4WRZEM16E150-1X/6EG24ETK31/A1D3M

R901274207 4WRZEM16E150-1X/6EG24ETK31/A1M

R901155719 4WRZEM16E150-1X/6EG24K31/A1D3M

R901411814 4WRZEM16E150-1X/6EG24K31/A1D3V

R901246480 4WRZEM16E150-1X/6EG24K31/A1M

R901442490 4WRZEM16E150-1X/6EG24K31/F1D3V

R901246481 4WRZEM16E150-1X/6EG24K31/F1M

R901265322 4WRZEM16E150-1X/6EG24N9EK31/A1M

R901443446 4WRZEM16E150-1X/6EG24N9EK31/F1D3V

R901427246 4WRZEM16E180-1X/6EG24K31/A1M

R901374339 4WRZEM16W6-150-1X/6EG24N9ETK31/A1D3M

R901342667 4WRZEM16W6-150-1X/6EG24N9ETK31/F1D3V

R901293773 4WRZEM16W6-150-1X/6EG24TK31/A1D3M

R901444943 4WRZEM16W6-180-1X/6EG24K31/A1M

R901436578 4WRZEM16W8-180-1X/6EG24N9EK31/F1D3V

R901246488 4WRZEM25E1-325-1X/6EG24K31/A1M

R901155720 4WRZEM25E220-1X/6EG24K31/A1D3M

R901246489 4WRZEM25E220-1X/6EG24K31/A1M

R901253640 4WRZEM25E220-1X/6EG24N9EK31/F1D3M

R901382679 4WRZEM25E220-1X/6EG24N9ETK31/A1V

R901364549 4WRZEM25E325-1X/6EG24ETK31/A1D3M

R901155721 4WRZEM25E325-1X/6EG24K31/A1D3M

R901246492 4WRZEM25E325-1X/6EG24K31/A1M

R901201452 4WRZEM25E325-1X/6EG24N9EK31/A1D3M

R901250242 4WRZEM25E325-1X/6EG24N9K31/A1D3M

R901271416 4WRZEM25E325-1X/6EG24N9K31/F1D3M

R901338924 4WRZEM25W6-220-1X/6EG24TK31/A1D3M

R901275575 4WRZEM25W6-325-1X/6EG24ETK31/A1M

R901311199 4WRZEM25W8-325-1X/6EG24N9K31/A1D3M

力士乐REXROTH比例方向阀，先导式，带整体电子放大版（OBE）和电气位置反馈4WRKE

R900738436 4WRKE10E1-100L-3X/6EG24EK31/A1D3M

R900704753 4WRKE10E1-100L-3X/6EG24EK31/A5D3M

R901315862 4WRKE10E1-100L-3X/6EG24EK31/C1D3M

R901254428 4WRKE10E1-100L-3X/6EG24EK31/F1D3M

R901125658 4WRKE10E1-100L-3X/6EG24EK31/F1D3V

R900721894 4WRKE10E1-100L-3X/6EG24ETK31/A1D3M

R901257665 4WRKE10E1-100L-3X/6EG24ETK31/A1D3V

R900704209 4WRKE10E1-100L-3X/6EG24ETK31/A5D3M

R901100438 4WRKE10E1-100L-3X/6EG24ETK31/A5D3M-280

R901204538 4WRKE10E1-100L-3X/6EG24ETK31/F1D3M

R901275793 4WRKE10E1-100L-3X/6EG24ETK31/F1D3V

R900706962 4WRKE10E1-100L-3X/6EG24K31/A1D3M

R901059576 4WRKE10E1-100L-3X/6EG24K31/A1D3M-280

R901100914 4WRKE10E1-100L-3X/6EG24K31/A1D3V

R900787317 4WRKE10E1-100L-3X/6EG24K31/A5D3M-280

R901231782 4WRKE10E1-100L-3X/6EG24K31/F1D3M

R900738627 4WRKE10E1-100L-3X/6EG24TK31/A1D3M

R900740188 4WRKE10E1-100L-3X/6EG24TK31/A1D3WC15M

R900728910 4WRKE10E1-100L-3X/6EG24TK31/A5D3M

R900741861 4WRKE10E1-100P-3X/6EG24EK31/A1D3M

R900741863 4WRKE10E1-100P-3X/6EG24EK31/A5D3M

R901177534 4WRKE10E1-100P-3X/6EG24EK31/F1D3M

R900716427 4WRKE10E1-100P-3X/6EG24ETK31/A1D3M

R900716032 4WRKE10E1-100P-3X/6EG24ETK31/A5D3M

R901060257 4WRKE10E1-25L-3X/6EG24ETK31/C1D3M

R901059565 4WRKE10E1-50L-3X/6EG24EK31/A1D3M

R900746826 4WRKE10E1-50L-3X/6EG24EK31/A5D3M

R900744115 4WRKE10E1-50L-3X/6EG24ETK31/A1D3M

R901039320 4WRKE10E1-50L-3X/6EG24ETK31/A5D3M

R900745314 4WRKE10E1-50L-3X/6EG24ETK31/A5D3M-280

R901213350 4WRKE10E1-50L-3X/6EG24ETK31/F1D3M

R901119151 4WRKE10E1-50L-3X/6EG24K31/A1D3M

R901375748 4WRKE10E1-50L-3X/6EG24K31/A1D3V

R901222366 4WRKE10E1-50L-3X/6EG24K31/A5D3M-280

R901014520 4WRKE10E1-50L-3X/6EG24TK31/A1D3M

R900740132 4WRKE10E1-50L-3X/6EG24TK31/A1D3WC15M

R901052907 4WRKE10E1-50L-3X/6EG24TK31/A5D3M

R900704234 4WRKE10E100L-3X/6EG24EK31/A1D3M

R901249044 4WRKE10E100L-3X/6EG24EK31/A1D3V

R900702614 4WRKE10E100L-3X/6EG24EK31/A5D3M

R901125661 4WRKE10E100L-3X/6EG24EK31/F1D3M

R900704216 4WRKE10E100L-3X/6EG24ETK31/A1D3M

R978933325 4WRKE10E100L-3X/6EG24ETK31/A1D3M-574

R901164029 4WRKE10E100L-3X/6EG24ETK31/A1D3V

R900705058 4WRKE10E100L-3X/6EG24ETK31/A5D3M

R901407739 4WRKE10E100L-3X/6EG24ETK31/A5D3WC16M

R901382604 4WRKE10E100L-3X/6EG24ETK31/C1D3M

R900745919 4WRKE10E100L-3X/6EG24ETK31/F1D3M

R900973372 4WRKE10E100L-3X/6EG24K31/A1D3M

R901307002 4WRKE10E100L-3X/6EG24K31/A1D3M-280

R900702018 4WRKE10E100L-3X/6EG24K31/A1D3V

R901416398 4WRKE10E100L-3X/6EG24K31/A1D3WC15M

R900708263 4WRKE10E100L-3X/6EG24K31/A5D3M

R901141974 4WRKE10E100L-3X/6EG24K31/C1D3M

R901044485 4WRKE10E100L-3X/6EG24K31/F1D3M

R901372383 4WRKE10E100L-3X/6EG24K31/F1D3V

R900707698 4WRKE10E100L-3X/6EG24TK31/A1D3M

R900739847 4WRKE10E100L-3X/6EG24TK31/A1D3WC15M

R900716190 4WRKE10E100L-3X/6EG24TK31/A5D3M

R987138491 4WRKE10E100L-3X/6EG24TK31A1D3M-574

R900770262 4WRKE10E100P-3X/6EG24EK31/A1D3M

R900736532 4WRKE10E100P-3X/6EG24EK31/A5D3M

R900750893 4WRKE10E100P-3X/6EG24EK31/F1D3M

R901342428 4WRKE10E100P-3X/6EG24EK31/F1D3V

R900722870 4WRKE10E100P-3X/6EG24ETK31/A1D3M

R900747710 4WRKE10E100P-3X/6EG24ETK31/A5D3M

R900737777 4WRKE10E100P-3X/6EG24ETK31/A5D3WC15M

R901140217 4WRKE10E100P-3X/6EG24K31/A1D3M

R900746184 4WRKE10E100P-3X/6EG24K31/A1D3V

R900732597 4WRKE10E100P-3X/6EG24K31/A5D3M

R900749738 4WRKE10E100P-3X/6EG24K31/F1D3M

R900707532 4WRKE10E100S-3X/6EG24EK31/A5D3M

R901150471 4WRKE10E25L-3X/6EG24EK31/A1D3M

R901121866 4WRKE10E25L-3X/6EG24EK31/A1D3M-280

R901157400 4WRKE10E25L-3X/6EG24EK31/A1D3V

R901407220 4WRKE10E25L-3X/6EG24EK31/F1D3M

R900781824 4WRKE10E25L-3X/6EG24ETK31/A1D3M

R901264204 4WRKE10E25L-3X/6EG24ETK31/A1D3V

R901275791 4WRKE10E25L-3X/6EG24ETK31/F1D3V

R901150985 4WRKE10E25L-3X/6EG24K31/A1D3M-280

R901032463 4WRKE10E25L-3X/6EG24K31/A5D3M

R901173391 4WRKE10E25L-3X/6EG24K31/F1D3M

R901223157 4WRKE10E25L-3X/6EG24TK31/A1D3M

R901369009 4WRKE10E3-100L-3X/6EG24EK31/A1D3M

R987151512 4WRKE10E3-100L-3X/6EG24ETK31/A1D3M

R900777456 4WRKE10E3-100L-3X/6EG24K31/A1D3M

R900767800 4WRKE10E3-100L-3X/6EG24K31/A5D3M

R901240829 4WRKE10E3-50L-3X/6EG24ETK31/F1D3V

R900706739 4WRKE10E50L-3X/6EG24EK31/A1D3M

R900702609 4WRKE10E50L-3X/6EG24EK31/A5D3M

R900720552 4WRKE10E50L-3X/6EG24EK31/A5D3M-280

R900768033 4WRKE10E50L-3X/6EG24EK31/A5D3V

R901263922 4WRKE10E50L-3X/6EG24EK31/F1D3M

R900719754 4WRKE10E50L-3X/6EG24ETK31/A1D3M

R901135807 4WRKE10E50L-3X/6EG24ETK31/A1D3V

R900753643 4WRKE10E50L-3X/6EG24ETK31/A1D3WC15M

R900703656 4WRKE10E50L-3X/6EG24ETK31/A5D3M

R900777015 4WRKE10E50L-3X/6EG24ETK31/F1D3M

R901275792 4WRKE10E50L-3X/6EG24ETK31/F1D3V

R900973373 4WRKE10E50L-3X/6EG24K31/A1D3M

R900706932 4WRKE10E50L-3X/6EG24K31/A5D3M

R901239199 4WRKE10E50L-3X/6EG24K31/C1D3M

R901150554 4WRKE10E50L-3X/6EG24K31/F1D3M

R900737629 4WRKE10E50L-3X/6EG24TK31/A1D3M

R900737714 4WRKE10E50L-3X/6EG24TK31/A1D3WC15M

R901059487 4WRKE10E50L-3X/6EG24TK31/A5D3M

R901164721 4WRKE10EA100L-3X/6EG24EK31/A1D3M

R901350385 4WRKE10EA100L-3X/6EG24EK31/A1D3V

R901386979 4WRKE10EA100L-3X/6EG24EK31/F1D3M

R901390209 4WRKE10EA100L-3X/6EG24ETK31/A1D3M

R901436752 4WRKE10EA100L-3X/6EG24K31/A1D3M

R901257904 4WRKE10EA25L-3X/6EG24K31/C1D3V

R901277508 4WRKE10EA25L-3X/6EG24K31/F1D3V

R901257928 4WRKE10EA50L-3X/6EG24K31/C1D3V

R901277560 4WRKE10EA50L-3X/6EG24K31/F1D3V

R901000543 4WRKE10Q1-100P-3X/6EG24EK31/A5D3M

R901389953 4WRKE10R100P-3X/6EG24ETK31/F1D3M

R901086832 4WRKE10R3-100L-3X/6EG24EK31/A1D3M

R901077968 4WRKE10R3-100L-3X/6EG24ETK31/A1D3M

R901413392 4WRKE10R3-100L-3X/6EG24ETK31/A1D3V

R901116677 4WRKE10R3-100L-3X/6EG24ETK31/F1D3V

R901413573 4WRKE10R3-25L-3X/6EG24ETK31/A1D3M

R901422724 4WRKE10R3-50L-3X/6EG24EK31/A1D3M

R901120773 4WRKE10R3-50L-3X/6EG24ETK31/F1D3M

R901120323 4WRKE10R3-50L-3X/6EG24ETK31/F1D3V

R901007999 4WRKE10R5-100L-3X/6EG24EK31/A1D3M

R901051880 4WRKE10R5-50P-3X/6EG24ETK31/F1D3M

R901315595 4WRKE10R50L-3X/6EG24ETK31/F1D3M

R900707214 4WRKE10W100L-3X/6EG24ETK31/A1D3M

R900246010 4WRKE10W100P-3X/6EG24K31/A5D3M-693=DE

R900703218 4WRKE10W100P-3X/6EG24K31/A5D3M-706=KM

R900751305 4WRKE10W2-100L-3X/6EG24K31/A5D3M

R900720792 4WRKE10W3-100L-3X/6EG24ETK31/A5D3M

R900741722 4WRKE10W3-100L-3X/6EG24K31/A5D3M

R900978872 4WRKE10W4-50L-3X/6EG24K31/A5D3M-561=KM

R900703217 4WRKE10W4-50P-3X/6EG24K31/A5D3M-705=KM

R900772051 4WRKE10W5-100L-3X/6EG24ETK31/A5D3M

R900703914 4WRKE10W6-100L-3X/6EG24EK31/A1D3M

R901072886 4WRKE10W6-100L-3X/6EG24EK31/A1D3V

R900704755 4WRKE10W6-100L-3X/6EG24EK31/A5D3M

R900778658 4WRKE10W6-100L-3X/6EG24EK31/A5D3M-280

R901327545 4WRKE10W6-100L-3X/6EG24EK31/C1D3M

R900757868 4WRKE10W6-100L-3X/6EG24EK31/F1D3M

R987065473 4WRKE10W6-100L-3X/6EG24EK31/F1D3M

R901428661 4WRKE10W6-100L-3X/6EG24EK31/F1D3V

R900704245 4WRKE10W6-100L-3X/6EG24ETK31/A1D3M

R901264206 4WRKE10W6-100L-3X/6EG24ETK31/A1D3V

R900710529 4WRKE10W6-100L-3X/6EG24ETK31/A5D3M

R900732764 4WRKE10W6-100L-3X/6EG24ETK31/A5D3M-280

R900746091 4WRKE10W6-100L-3X/6EG24ETK31/F1D3M

R901301507 4WRKE10W6-100L-3X/6EG24ETK31/F1D3V

R900973353 4WRKE10W6-100L-3X/6EG24K31/A1D3M

R901123279 4WRKE10W6-100L-3X/6EG24K31/A1D3V

R900708050 4WRKE10W6-100L-3X/6EG24K31/A5D3M

R900742340 4WRKE10W6-100L-3X/6EG24K31/A5D3V

R901326684 4WRKE10W6-100L-3X/6EG24K31/C1D3V

R900705349 4WRKE10W6-100L-3X/6EG24K31/F1D3M

R901363237 4WRKE10W6-100L-3X/6EG24K31/F1D3V

R900775296 4WRKE10W6-100L-3X/6EG24TK31/A1D3M

R901077280 4WRKE10W6-100L-3X/6EG24TK31/A5D3M

R901256920 4WRKE10W6-100L-3X/6EG24TK31/F1D3M

R901413947 4WRKE10W6-100L-3X/6EG24TK31/F1D3V

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阀门是在流体系统中，用来控制流体的方向、压力、流量的装置，是使配管和设备内的介质（液体、气体、粉末）流动或停止并能控制其流量的装置。

阀门是管路流体输送系统中控制部件，用来改变通路断面和介质流动方向，具有导流、截止、节流、止回、分流或溢流卸压等功能。用于流体控制的阀门，从较简单的截止阀到极为复杂的自控系统中所用的各种阀门，其品种和规格繁多， 阀门的公称通径从极微小的仪表阀大至通径达10m的工业管路用阀。可用于控制水、蒸汽、油品、气体、泥浆、各种腐蚀性介质、 液态金属和放射性流体等各种类型流体地流动 ，阀门的工作压力可以从0.0013MPa到1000MPa 的非常高压，工作温度可以c-270℃的超低温到1430℃的高温。

阀门的控制可采用多种传动方式， 如手动、电动、液动、气动、涡轮、电磁动、电磁液动、电液动、气液动、正齿轮、伞齿轮驱动等；可以在压力、温度或其它形式传感信号的作用下， 按预定的要求动作，或者不依赖传感信号而进行简单的开启或关闭，阀门依靠驱动或自动机构使启闭件作升降、滑移、旋摆或回转运动， 从而改变其流道面积的大小以实现其控制功能。

按作用和用途

（一）关断阀

这类阀门是起开闭作用的。常设于冷、热源进、出口，设备进、出口，管路分支线（包括立管）上，也可用作放水阀和放气阀。常见的关断阀有闸阀、截止阀、球阀和蝶阀等。

闸阀可分为明杆和暗杆、单闸板与双闸板、楔形闸板与平行闸板等。闸阀关闭严密性不好，大直径闸阀开启困难；沿水流方向阀体尺寸小，流动阻力小，闸阀公称直径跨度大。

截止阀按介质流向分直通式、直角式和直流式三种，有明杆和暗杆之分。截止阀的关闭严密性较闸阀好，阀体长，流动阻力大，较大公称直径为DN200。

球阀的阀芯为开孔的圆球。板动阀杆使球体开孔正对管道轴线时为全开，转90°为全闭。球阀有一定的调节性能，关闭较严密。

蝶阀的阀芯为圆形阀板，它可沿垂直管道轴线的立轴转动。当阀板平面与管子轴线一致时，为全开；闸板平面与管子轴线垂直时，为全闭。蝶阀阀体长度小，流动阻力小，比闸阀和截止阀价格高。 [1] 

（二）止回阀

这类阀门用于防止介质倒流，利用流体自身的动能自行开启，反向流动时自动关闭。常设于水泵的出口、疏水器出口以及其他不允许流体反向流动的地方。止回阀分旋启式、升降式和对夹式三种。对于旋启式止回阀，流体只能从左向右流动时，反向流动时自动关闭。对于升降式止回阀，流体从左向右流动时，阀芯抬起，形成通路，反向流动时阀芯被压紧到阀座上而被关闭。对于对夹式止回阀，流体从左向右流动时，阀芯被开启，形成通路，反向流动时阀芯被压紧到阀座上而被关闭，对夹式止回阀可多位安装、体积小、重量轻、结构紧凑。 [1] 

（三）调节阀

阀门前后压差一定，普通阀门的开度在较大范围内变化时，其流量变化不大，而到某一开度时，流量急剧变化，即调节性能不佳。调节阀可以按照信号的方向和大小，改变阀芯行程来改变阀门的阻力数，从而达到调节流量目的的阀门。调节阀分手动调节阀和自动调节阀，而手动或自动调节阀又分许多种类，其调节性能也是不同的。自动调节阀有自力式流量调节阀和自力式压差调节阀等。 [1] 

（四）真空类

真空类包括真空球阀、真空挡板阀、真空充气阀、气动真空阀等。其作用是在真空系统中，用来改变气流方向，调节气流量大小，切断或接通管路的真空系统元件称为真空阀门。

（五）特殊用途类

特殊用途类包括清管阀、放空阀、排污阀、排气阀、过滤器等。

排气阀是管道系统中必不可少的辅助元件，广泛应用于锅炉、空调、石油天然气、给排水管道中。往往安装在制高点或弯头等处，排除管道中多余气体、提高管道路使用效率及降低能耗。