值器是一种高精度的减压阀，主要用于压力定值。目前有两种压力规格的定值器：其气源压力分别为输出压力范围分别为。其输出压力波动不大于最大输出压力的常用于需要供给精确气源压力和信号压力的场合，如气动实验设备、气动自动装置等。定值器由三部分组成是直动式减压阀的主闭部分是恒压降装置，相当于一定差减压阀。主要作用是使喷嘴得到稳定气源流量是喷嘴挡板装置和调压部分，起调压和压力放大作用，利用被它放大了的气压去控制主阀部分。

FILTER HEADARIELC-0394

VALVE CAPARIELB-0040

STEEL GASKETARIELA-0103

SUNCTION VALVE SEATARIELA-11464

SUNCTION VALVE GUARD ASSEMBLYARIEL

CENTER BLOTARIELA-11463

VALVE PLATEARIELA-19708

GUIDE RINGARIELA-7523

SPRING PLATEARIELA-1054

SPIROL PINARIELA-1162

DISCHARGE VALVE SEAT ASSEMBLYARIEL

DISCHARGE VALVE GIUDE ASSEMBLYARIEL

CENTER STUDARIELA-2442

GUIDE RINGARIELA-5435

SPRING PLATEARIELA-1048

SPIROL PINARIELA-2402

VALVE WASHERARIELA-12172

SUNCTION VALVE SEATARIELA-10352

SUCTION VALVE GUARD ASSEMBLYARIEL

CENTER STUDARIELA-10358

GUIDE RINGARIELA-12149

LOCKNUTARIELA-1366

VALVE WASHERARIELA-1267

DISCHARGE VALVE SEAT ASSEMBLYARIEL

LOWER PART ASSEMBLYARIELA-6086-A

STEEL GASKETARIELA-12084

UPPER PARTARIELA-6085

VALVE RINGARIELA-6089

WEAR BANDARIELA-6030

PISTON RINGARIELA-19364

PACKING CASEARIELB-6004

SPIN-ON FILTERARIELA-0661

FIRST STAGE EXHAUST ASSEMBLYARIEL

VALVE ASSY.ARIELB-5730-N

DISCHARGE VALVEARIELB-3492-HH

SUCTION VALVEARIELB-3491-JJ

DISCHARGE VALVEARIELB-3712-GG

SUCTION VALVEARIELB-4087-FF

CONCENTRIC VALVEARIELB-1788-E

SUCTION VALVEARIELB-4692-M

SUCTION VALVEARIELB-4692-M

DISCHARGE VALVEARIELB-5735-P

CONCENTRIC VALVEARIELB-1967-E

FORCE FEED LUBRICATOR PUMPARIELA-18525

FORCE FEED SHUTDOWNARIELA-10753

VALVE KITARIELKB-5730-N

VALVE KITARIELKB-5735-P

VALVE KITARIELKB-3481-JJ

VALVE KITARIELKB-4692-M

VALVE KITARIELKB-3712-GG

VALVE KITARIELKB-4087-FF

CONCENTRIC VALVE KITARIELKB-1788-E

DISCHARGE VALVEARIELB-3492-HH型号齐全

定值器处于非工作状态时，由气源输入的压缩空气经过滤器1过滤后进入A室和正室。主阀芯19在弹簧20和气源压力作用下压在阀座上，使A室与B室断开。进入A室的气流经由阀口(又称为活门)12至F室，再通过恒节流孔13降压后，分别进入G室和D室。由于这时尚未对膜片8加力，挡板5与喷嘴4之间的间距较大，气体从喷嘴4流出时的气流阻力较小，G室及D室的气压较低，膜片3及15保持原始位置。进入只室的微量气体主要经B室通过阀口2从排气口排出；另有一部分从输出口排空。此时输出口无气流输出，由喷嘴流出而排空微量气体是维持喷嘴挡板装置工作所必须的，因其为无功耗气量，所以希望其耗量越小越好

DISCHARGE VALVE GIUDE ASSEMBLYARIEL

CENTER STUDARIELA-10356

GUIDE RINGARIELA-7710

SPIROL PINARIELA-1314

VALVE WASHERARIELA-11437

STEEL GASKETARIELA-13192

RIDER RINGARIELA-7170

PISTION RINGARIELA-7108

PISTION RINGARIELA-19363

SUCTION VALVE GUARD ASSEMBLYARIEL

CENTER STUDARIELA-12990

GUIDE RINGARIELA-10355

CENTER STUDARIELA-14577

GUIDE RINGARIELA-10357

SPIROL PINARIELA-2042

VALVE CONCENTRIC KITARIELKB-1967-E

FIRST STAGE EXHAUST VALVE REPAIR KIT

EXHAUST VALVE KITARIELKB-3492-HH

SUCTION VALVE KITARIELKB-3491-JJ

VALVE RINGARIELA-6088

LENTOID SPRINGARIELA-6091

LENTOID SPRINGARIELA-6090

SECONDARY EXHAUST VALVE REPAIR KITARIEL

SECONDARY EXHAUST VALVE REPAIR KITARIEL

THREE-STAGE EXHAUST VALVE REPAIR KIT

THREE-STAGE EXHAUST VALVE REPAIR KIT

PISTON RINGARIELA-7037

导致挡板与喷嘴之间的间距加大，室和室的气压下降。由于室压力增高，室压力下降，膜片15在压差的作用下向上移动，使主阀口减小，输出压力下降，直到稳定到调定压力上。此外，在输入压力上升时，E室压力和F室瞬时压力也上升，膜片3在上下差压的作用下上移，关小稳压阀口12。由于节流作用加强，F室气压下降，始终保持节流孔13的前后压差恒定，故通过节流孔13的气体流量不变，使喷嘴挡板的灵敏度得到提高。当输入压力降低时，B室和H室的压力瞬时下降，膜片8连同挡板5由于受力平衡破坏而下移，喷嘴4与挡板5间间距减小，G室和D室压力上升，膜片3和15下移。膜片15下移使主阀口开度加大，使B室及H室气压回升，

EVAC 空气压力开关 6545393

EVAC 净水柜液位开关 6544161

EVAC 膜柜液位开关 6544161

EVAC 鼓风机叶轮 6542827

EVAC 真空泵叶轮 6547175

EVAC 真空喷射器备件包 6543037

EVAC 加注泵DDE 6-10 6551083

EVAC 真空马桶配件 5435015

EVAC 真空破坏阀 5432548

EVAC 真空压力开关 5437598

EVAC 叶轮盖叶轮螺母 5490536

EVAC 微米刷式过滤器 6552311 300

EVAC910 真空马桶配件 启动器 5821000

EVAC 900 6541002 floor model aniara

EVAC 900 6540964 wall model.mosaik.whit

EVAC 900 6542726 Hinge kit铰链套件

EVAC 900 6542732 Hinge kit 铰链套件

EVAC 5435181

EVAC 6542983

EVAC 6542997