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DBW10B1-5X/315-6EG24N9K4现货力士乐溢流阀DBW10B1-5X/315-6EG24N9K4现货力士乐溢流阀
R900457256Z2FS16-8-3X/S2力士乐单向节流阀
节流阀是通过改变节流截面或节流长度以控制流体流量的阀门。将节流阀和单向阀并联则可组合成单向节流阀。节流阀和单向节流阀是简易的流量控制阀，在定量泵液压系统中，节流阀和溢流阀配合，可组成三种节流调速系统，即进油路节流调速系统、回油路节流调速系统和旁路节流调速系统。节流阀没有流量负反馈功能，不能补偿由负载变化所造成的速度不稳定，一般仅用于负载变化不大或对速度稳定性要求不高的场合。
对节流阀的性能要求是：
·流量调节范围大，流量一压差变化平滑；
·内泄漏量小，若有外泄漏油口，外泄漏量也要小；
·调节力矩小，动作灵敏。
节流阀(Choke valve)的外形结构与截止阀并无区别，只是它们启闭件的形状有所不同。节流阀的启闭件大多为圆锥流线型，通过它改变通道截面积而达到调节流量和压力。节流阀供在压力降极大的情况下作降低介质压力之用。
介质在节流阀瓣和阀座之间流速很大，以致使这些零件表面很快损坏，即所谓气蚀现象。为了尽量减少气蚀影响，阀瓣采用耐气蚀材料（合金钢制造）并制成角为140～180的流线型圆锥体，这还能使阀瓣能有较大的开启高度，一般不推荐在小缝隙下节流。
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1.构造较简单，便于制造和维修，成本低。
2.调节精度不高，不能作调节使用。
3.密封面易冲蚀，不能作切断介质用。
4.密封性较差。
节流阀按通道方式可分为直通式和角式两种；按启闭件的形状分，有针形、沟形和窗形三种。
可调节节流阀：阀针和阀芯采用硬质合金制造，产品按API6A标准设计，具有耐磨、耐冲刷性能。主要用于井口采油（气）树设备。
滑套式节流阀：阀芯采用低噪音平衡型结构，开启轻便，产品按API6A标准设计，阀芯表面覆盖碳化钨，适合于有闪蒸、高压差，高压力，空化等条件苛刻的场合，使用寿命长，流量调节精度大大提高。适用于石油，天然气，化工，炼油，水电等行业。
节流阀的安装与维护应注意以下事项：
该阀经常需要操作，因此应安装在易于方便操作的位置上。
安装时要注意介质方向与阀体所标箭头方向保持*。
一、节流阀体沉积物的来源较为复杂，但可归纳为以下几类：
1.油液中的机械杂质或因氧化析出的胶质、沥青、碳渣等污物堆积在节流缝隙处。
2.由于油液老化或受到挤压后产生带电的极化分子，而节流缝隙的金属表面上存在电位差，故极化分子被吸附到缝隙表面，形成牢固的边界吸附层，吸附层厚度一般为5~8微米，因而影响了节流缝隙的大小。以上堆积、吸附物增长到一定厚度时，会被液流冲刷掉，随后又重新附在阀口上。这样周而复始，就形成了流量的脉动。
3.阀口压差较大时，因阀口温度高，液体受挤压的程度增强，金属表面也更易受摩擦作用而形成电位差，因此压差大时容易产生堵塞现象。
4.PCV废气来源：燃烧室内的可燃混合气通过活塞间隙进入曲轴箱后，与机油蒸汽混合后形成的混合气体。为避免稀释和污染机油，混合气会被曲轴箱强制通风系统（PCV）抽入进气道参与二次燃烧。这部分废气进到进气道后，由于温度降低会冷凝形成液相态，其中的“不稳定组分”会在高温下氧化缩合，在节流阀表面形成油垢并附着。
5.涡轮增压压气机深入的润滑油：对涡轮增压发动机而言，目前普遍采取废气驱动方式，即利用排气道产生的高压废气驱动涡轮，并通过共轴带动进气道内的压气叶片，形成进气道气流增压。但共轴轴承在长期且恶劣的工况下，易产生润滑油的渗透及挥发，再加入充气效率成倍增长，更易形成重质油污加剧节流阀体沉积物的附着。
6.碳罐排出的燃油蒸汽：发动机碳罐吸附的燃油蒸汽中，易形成节流阀沉积物的只要是环戊二烯，在持续的高温下可氧化缩合形成胶状油垢。
二、节流阀的维护与清洗
当节流阀（即蝴蝶阀）被沉积物所阻碍时，节气门开度值产生紊乱，发动机不能稳定、精确的控制其开度，开度值过低造成启动困难、怠速不稳或异常熄火；发动机加减速时，节流阀不能及时响应会导
相关措施
1.选择水力半径大的薄刃节流口。
2.精密过滤并定期更换油液。
3.适当减小节流口前后的压差。
4.采用电位差较小的金属材料、选用抗氧化稳定性好的油液、减小节流口表面粗糙度。
应用
编辑
由于节流阀的流量不仅取决于节流口面积的大小，还与节流口前后的压差有关，阀的刚度小，故只适用于执行元件负载变化很小且速度稳定性要求不高的场合。
对于执行元件负载变化大及对速度稳定性要求高的节流调速系统，必须对节流阀进行压力补偿来保持节流阀前后压差不变，从而达到流量稳定。
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一种液压压力控制阀。在液压设备
中主要起定压溢流作用，稳压，
系统卸荷和安全保护作用。
定压溢流作用：在定量泵节
流调节系统中，定量泵提供的
是恒定流量。当系统压力增大时，
会使流量需求减小。此时溢流阀开启，
使多余流量溢回油箱，保证溢流阀进口压力，
即泵出口压力恒定（阀口常随压力波动开启）。
稳压作用：溢流阀串联在回油路上，溢流阀产生背压，
运动部件平稳性增加。系统卸荷作用：在溢流阀的
遥控口串接溢小流量的电磁阀，当电磁铁通电时，
溢流阀的遥控口通油箱，此时液压泵卸荷。
溢流阀此时作为卸荷阀使用。安全保护作用：
系统正常工作时，阀门关闭。
只有负载超过规定的极限（系统压力超过调定压力）时开启溢流，
进行过载保护，使系统压力不再增加
（通常使溢流阀的调定压力比系统最高工作压力高10%～20%）。
实际应用中一般有：作卸荷阀用，作远程调压阀，
作高低压多级控制阀，作顺序阀，用于产生背压（串在回油路上）。
溢流阀一般有两种结构：1、直动型溢流阀 。2、先导式溢流阀。
对溢流阀的主要要求：调压范围大，调压偏差小，压力振摆小，
动作灵敏，过载能力大，噪声小。
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PGF2-2X/011RE01VE4
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LC16A00D7X
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LC16A20D7X
LC16A40D7X
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LC40A00D7X
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M-3SEW6U3X/420MG24N9K4/B20
M-3SEW6U3X/420MG24N9K4/B22
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LC50A00D7X
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LC63A40D7X
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PGF1-2X/1.7RE01VU2
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PGF1-2X/2.8RE01VU2
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4WREE10WA25-2X/G24K31/A1V
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AB32-10/3D380
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R901025295
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R900479797 DR10-5-4X/315Y
4WREE6W16-2X/G24K31/A1V
AB33-22/KD42-22/48
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4WREE6W32-2X/G24K31/A1V
R431003039
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4WE10D3X/CW230N9K4
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DBW10B3-5X/100-6EG24N9K4
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4WREE10E1-75-2X/G24K31/F1V
R900561022 DRC4-52/200Y
4WREE10W1-50-2X/G24K31/F1V
DB30G2-5X/50
4WREEM6W08-2X/G24K34/B6V
4WRA6W15-2X/G24N9K4/V
4WRE6WA08-2X/G24K4/V
4WRZE32W6-520-7X/6EG24N9K31/A1D3V
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4WREE6E1-16-2X/G24K31/A1V
R900208672 MR1100G-D1N1N1N1N
DB30-2-5X/100
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0821301500
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ZDR10DB1-5X/25YM
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ZDR10DB1-5X/150YM
ZDR10DB1-5X/210YM
ZDR10DB1-5X/25YMV
ZDR10DB1-5X/75YMV
ZDR10DB1-5X/150YMV
ZDR10DB1-5X/210YMV
ZDR10DB3-5X/25YM
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ZDR10DB3-5X/150YM
ZDR10DB3-5X/210YM
ZDR10DB3-5X/25YMV
ZDR10DB3-5X/75YMV
ZDR10DB3-5X/150YMV
ZDR10DB3-5X/210YMV
ZDR10DB7-5X/25YM
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ZDR10DB7-5X/210YM
ZDR10DB7-5X/25YMV
ZDR10DB7-5X/75YMV
ZDR10DB7-5X/150YMV
ZDR10DB7-5X/210YMV
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FD16FA2X/B03V
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ZDR10DP1-5X/25YM
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ZDR10DP1-5X/150YM
ZDR10DP1-5X/210YM
ZDR10DP1-5X/25YMV
ZDR10DP1-5X/75YMV
ZDR10DP1-5X/150YMV
ZDR10DP1-5X/210YMV
ZDR10DP3-5X/25YM
ZDR10DP3-5X/75YM
ZDR10DP3-5X/150YM
ZDR10DP3-5X/210YM
ZDR10DP3-5X/25YMV
ZDR10DP3-5X/75YMV
ZDR10DP3-5X/150YMV
ZDR10DP3-5X/210YMV
ZDR10DP7-5X/25YM
ZDR10DP7-5X/75YM
ZDR10DP7-5X/150YM
ZDR10DP7-5X/210YM
ZDR10DP7-5X/25YMV
ZDR10DP7-5X/75YMV
ZDR10DP7-5X/150YMV
ZDR10DP7-5X/210YMV
0510525022 AZPF-12-011RCB20MB
3DRE16P-6X/200YG24K4V
R900912669 LFA25E-7X/CA20DQMG24F
4WE6EA6X/EG220N9K4
0510525033 AZPF-10-011RQR20MB
0811402036 DBETX-10/50G24-8NZ4M
4WRZE52W8-1000-7X/6EG24N9ETK31/A1D3M
DBETR-1X/350G24K4M
0510515006 AZPF-12-011RFP20MB
R900008743 AB33-01/12B
4WRSEH6C3B24LD-3X/G24K0/A1V
VT-SSPA1-525-20/V0
0820056301
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0820056101
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4WRTE25W8-350L-4X/6EG24ETK31/F1M
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R900912737 4WE10D33/CG24K4QMBG24
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0510725030 AZPF-12-022RCB20KB
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0811404640 4WRPEH6CB40L-2X/G24K0/F1M
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4WRKE10W6-100L-3X/6EG24EK31/A1D3M
R900923619 LFA25DBU2B2-7X/100A050
0510625021 AZPF-10-016RQR12MB
3DREM10P-7X/50YG24K4V
0811405138 VT-VRPA2-537-10/V0/RTS
4WRSE6V1-20-3X/G24K0/A1V
0811404046 4WRPH6C4B40P-2X/G24Z4/M
R900946144 DBAW15BF2-23/200-6EG24N9K4A08
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R900028815 AB32-12/00-K-004-22
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0510725077 AZPF-12-022RRR20KB
R901045246 DBETE-6X/315G24K31F1V
VT-PPV-1-1X/V0/0
VT3000-3X
M-3SED10CK1X/350CG24N9K4
M-3SED10UK1X/350CG24N9K4
PVV5-1X/193RA15DMC
PVV21-1X/040-018RA15RRMB
PVV5-1X/193RA15RMC
PVV4-1X/122RA15DMC
PVV1-1X/036RA15DMB
PVV5-1X/193RA15UMC
PV7-16/16-30RE01MC0-08
PV7-1X/100-118RE07MC0-16
PV7-17/25-30RE01MCO-16
PV7-17/16-20RE01MCO-16
4WRZ16E150-70/6EG24N9ETK4/M
4WRZ16W8-150-70/6EG24N9ETK4/M
4WREE6V16-2X/G24K31/A1V
4WREE10E1-75-2X/G24K31/A1V
4WREE6W1-32-2X/G24-K31/F1V
4WREE6W1-30-2X/G24-K31/F1V
4WRAE10W60-22/G24N9K31/A1V
4WRZ25W8-220-7X/6EG24N9K4/M
4WRZ25W6-325-7X/6EG24N9EK4/D3M
4WREE6E32-2X/G24K31/A1V(R900907114)
4WRZE32W8-360-7X/6EG24N9EK31/A1D3V
4WRZ10W8-50-71/6EG24N9EK4/D3M
4WRZ10E-50-70/6EG24N9EK4/D3M
4WRZ10EA85-7X/6EG24N9EK4/D3M
4WRE6W08-2X/G24K4/V
4WRE10W25-2X/G24K4/V
4WRPEH6C3B40L-2X/G24KO/AIM
4WRAE10E60-2X/G24K31/A1V
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4WREE10V50-2X/G24K31/F1V
4WREE10W1-50-2X/G24K31/F1V
4WREE10W1-75-2X/G24K31/F1V
4WRZE10W6-85-7X/6EG24N9ETK31/A1D3V（R900932993)
4WRZ16W8-150-7X/6EG24N9K4/M
4WRZ16E150-7X/6EG24N9ETK4/D3M(R900966566)
4WRAE10E1-60-2X/G24N9K31/F1V
4WRZE16W8-100-7X/6EG24N9ETK31/F1D3M
4WRAE10W1-30-2X/G24N9K31/F1V
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4WRZ10W8-85-7X/6EG24N9ETK4/D3M
4WRZE10E50-70/6EG24N9EK31/F1D3M
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4WRZE16E-150-7X/6EG24K31/A1M
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4WRZ10E50-7X/6EG24N9EK4/V
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3DREE10P-6X/200YG24K31V
3DR16P5-5X/250Y/00M
3DREE10P-6X/315YG24K31V
3DREM16P6X/200YG24K4V
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4WRAP6W7-04-3X/G24K4M
4WRPH6C4B24L-2X/G24K0/M-750
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4WRZE32W8-520-7X/6EG24EK31/F1M
4WRZE16W8-150-7X/6EG24EK31/F1M
4WS2EM6-2X/20B11ET210K17EM+Z17
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4WRREH6VB40L-1X/G24K0/B5M
4WRKE10W6-100L-3X/6EG24EK31A1D3M
4WRZ16W8-150-70/6EG24N9ETK4/D3M
4WRZ25W8-325-70/6EG24N9ETK4/D3M
4WRKE25W8-220L-30/6EG24K31/A1D3V
4WRKE16W6-200P-31/6EG24EK31C1D3M
4WRKE25E1-350L-31/6EG24EK31/A5D3M
4WRAE10E60-21/G24N9K31/A1V
4WRZ16E1-150-7X/6EG24N9K4/D3M
3DREME10P-6X/200YG24K31V
4WRZ32W8-520-7X/6EG24N9K4/D3M
4WRTE25-V1-350L-4X/6EG24EK31/F1M
4WRKE25-W8-220L-3X/6EG24EK31/F1D3M
4WRKE35E3-1000L-3X/6EG24TK31/A1D3M
4WRPH10C4B50L-2X/G24Z4/M
4WRZE10W8-85-7X/6EG24N9ETK31F1D3M
4WRZE32W8-520-7X/6EG24N9TK31/F1D3M
4WRZE25E-220-7X/6EG24N9ETK31/F1D3M
4WRZE16E-150-7X/6EG24N9ETK31/F1D3M
4WRTE16V1-125L-4X/6EG24ETK31/F1M
4WRSE10V50-3X/G24K0/A1V
4WRZE16W8-100-7X/6EG24N9ETK31/F1D3M
4WRZE16W8-150-7X/6EG24N9ETK31/F1D3M
4WS2EM10-5X/75B11ET315K31EV
4WRKE10W6-100L-3X/6EG24K31/F1D3M
4WRKE16W8-200L-31/6EG24ETK31/A1D3M
4WRZE25W6-325-70/6EG24N9ETK31/A1D3M
4WRKE16W6–200L-3X/6EG24K31/A5D3M
4WRZE25W6-325-7X/6EG24ETK31/A1D3M
4WRTE10E100P-4X/6EG24ETK31/A5M
4WREE6E1-32-2X/G24K31/A1V
4WREE6V04-22/G24K31/F1V
4WRTE32E1-600L-4X/6EG24EK31/A1M
4WRPEH6C3B40L-2X/G24KO/F1M-885
4WRPEH10C4B100L-2X/G24K0/A1M
AA10VSO100DFR/31RPKC62N00
4WS2EM10-5X/5B11XHET315K31EV
VT3000-3X
VT-SSPA1-525-20/V0/I
VT-VSPA1-1-1X
VT-VSPA1-2-1X/VO/0
VT-VACAP-500-20/V0
0811405060
0811405547
VT-VSPA2-50-10/T1
VT-VRPA1-150-10/V0/0
0811404601
HM18-1X/350VS/V0/0
VT3015-1X
3DREP6C-2X/25EG24N9K4/M
VT3003-3X
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M-3SED6UK1X/350CG24N9K4
VT3002-2X/48F
VT-VSPD-1-2X/V0-0-0-1
MKD071B-061-KG0-KN
4WRTE16E200L-4X/6EG24EK31/F1M
VT-NE30-2X
VT-HNC100-1-2X/W08-P-0
AB31-14/3-1A2A3A
PGH4-21/050RR11VU2
VT11013-1X
BTC06-2A-F-EH3-FW/S002
FWA-BTC06-DOL-01VRS-EN
VT11118-1X
DBW10B1-5X/315-6EG24N9K4现货力士乐溢流阀武穴黎翔专业代理德国力士乐全系列产品， 专注原装全新力士乐 ，大量现货，假一罚万，力士乐好价格！！欢迎询价！！
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武穴黎翔机电设备有限公司REXROTH力士乐销售售部
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欢迎您的来电！DG4V-5-8CJ-VM-U-H6-20 威格士电磁阀现货
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广泛应用于钢铁、冶金、铝行业、石油化工、航天、船舶制造、煤炭、水泥、电力、汽车、工程机械、食品、林业、纺织、皮革、造纸等行业领域A10VS028DR/31R-PPA12N00
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PVV5-1X/193RA15DMB PVV5-1X/193RA15DMBR901099789博世力士乐单向阀流量控制阀HED8OH-2X/200K14V
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R900457256Z2FS16-8-3X/S2力士乐单向节流阀R900457256Z2FS16-8-3X/S2力士乐单向节流阀
节流阀是通过改变节流截面或节流长度以控制流体流量的阀门。将节流阀和单向阀并联则可组合成单向节流阀。节流阀和单向节流阀是简易的流量控制阀，在定量泵液压系统中，节流阀和溢流阀配合，可组成三种节流调速系统，即进油路节流调速系统、回油路节流调速系统和旁路节流调速系统。节流阀没有流量负反馈功能，不能补偿由负载变化所造成的速度不稳定，一般仅用于负载变化不大或对速度稳定性要求不高的场合。
对节流阀的性能要求是：
·流量调节范围大，流量一压差变化平滑；
·内泄漏量小，若有外泄漏油口，外泄漏量也要小；
·调节力矩小，动作灵敏。
节流阀(Choke valve)的外形结构与截止阀并无区别，只是它们启闭件的形状有所不同。节流阀的启闭件大多为圆锥流线型，通过它改变通道截面积而达到调节流量和压力。节流阀供在压力降极大的情况下作降低介质压力之用。
介质在节流阀瓣和阀座之间流速很大，以致使这些零件表面很快损坏，即所谓气蚀现象。为了尽量减少气蚀影响，阀瓣采用耐气蚀材料（合金钢制造）并制成角为140～180的流线型圆锥体，这还能使阀瓣能有较大的开启高度，一般不推荐在小缝隙下节流。
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1.构造较简单，便于制造和维修，成本低。
2.调节精度不高，不能作调节使用。
3.密封面易冲蚀，不能作切断介质用。
4.密封性较差。
节流阀按通道方式可分为直通式和角式两种；按启闭件的形状分，有针形、沟形和窗形三种。
可调节节流阀：阀针和阀芯采用硬质合金制造，产品按API6A标准设计，具有耐磨、耐冲刷性能。主要用于井口采油（气）树设备。
滑套式节流阀：阀芯采用低噪音平衡型结构，开启轻便，产品按API6A标准设计，阀芯表面覆盖碳化钨，适合于有闪蒸、高压差，高压力，空化等条件苛刻的场合，使用寿命长，流量调节精度大大提高。适用于石油，天然气，化工，炼油，水电等行业。
节流阀的安装与维护应注意以下事项：
该阀经常需要操作，因此应安装在易于方便操作的位置上。
安装时要注意介质方向与阀体所标箭头方向保持*。
一、节流阀体沉积物的来源较为复杂，但可归纳为以下几类：
1.油液中的机械杂质或因氧化析出的胶质、沥青、碳渣等污物堆积在节流缝隙处。
2.由于油液老化或受到挤压后产生带电的极化分子，而节流缝隙的金属表面上存在电位差，故极化分子被吸附到缝隙表面，形成牢固的边界吸附层，吸附层厚度一般为5~8微米，因而影响了节流缝隙的大小。以上堆积、吸附物增长到一定厚度时，会被液流冲刷掉，随后又重新附在阀口上。这样周而复始，就形成了流量的脉动。
3.阀口压差较大时，因阀口温度高，液体受挤压的程度增强，金属表面也更易受摩擦作用而形成电位差，因此压差大时容易产生堵塞现象。
4.PCV废气来源：燃烧室内的可燃混合气通过活塞间隙进入曲轴箱后，与机油蒸汽混合后形成的混合气体。为避免稀释和污染机油，混合气会被曲轴箱强制通风系统（PCV）抽入进气道参与二次燃烧。这部分废气进到进气道后，由于温度降低会冷凝形成液相态，其中的“不稳定组分”会在高温下氧化缩合，在节流阀表面形成油垢并附着。
5.涡轮增压压气机深入的润滑油：对涡轮增压发动机而言，目前普遍采取废气驱动方式，即利用排气道产生的高压废气驱动涡轮，并通过共轴带动进气道内的压气叶片，形成进气道气流增压。但共轴轴承在长期且恶劣的工况下，易产生润滑油的渗透及挥发，再加入充气效率成倍增长，更易形成重质油污加剧节流阀体沉积物的附着。
6.碳罐排出的燃油蒸汽：发动机碳罐吸附的燃油蒸汽中，易形成节流阀沉积物的只要是环戊二烯，在持续的高温下可氧化缩合形成胶状油垢。
二、节流阀的维护与清洗
当节流阀（即蝴蝶阀）被沉积物所阻碍时，节气门开度值产生紊乱，发动机不能稳定、精确的控制其开度，开度值过低造成启动困难、怠速不稳或异常熄火；发动机加减速时，节流阀不能及时响应会导
相关措施
1.选择水力半径大的薄刃节流口。
2.精密过滤并定期更换油液。
3.适当减小节流口前后的压差。
4.采用电位差较小的金属材料、选用抗氧化稳定性好的油液、减小节流口表面粗糙度。
应用
编辑
由于节流阀的流量不仅取决于节流口面积的大小，还与节流口前后的压差有关，阀的刚度小，故只适用于执行元件负载变化很小且速度稳定性要求不高的场合。
对于执行元件负载变化大及对速度稳定性要求高的节流调速系统，必须对节流阀进行压力补偿来保持节流阀前后压差不变，从而达到流量稳定。
R900912572博世力士乐单向阀流量控制阀LC16A20D7X
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一种液压压力控制阀。在液压设备
中主要起定压溢流作用，稳压，
系统卸荷和安全保护作用。
定压溢流作用：在定量泵节
流调节系统中，定量泵提供的
是恒定流量。当系统压力增大时，
会使流量需求减小。此时溢流阀开启，
使多余流量溢回油箱，保证溢流阀进口压力，
即泵出口压力恒定（阀口常随压力波动开启）。
稳压作用：溢流阀串联在回油路上，溢流阀产生背压，
运动部件平稳性增加。系统卸荷作用：在溢流阀的
遥控口串接溢小流量的电磁阀，当电磁铁通电时，
溢流阀的遥控口通油箱，此时液压泵卸荷。
溢流阀此时作为卸荷阀使用。安全保护作用：
系统正常工作时，阀门关闭。
只有负载超过规定的极限（系统压力超过调定压力）时开启溢流，
进行过载保护，使系统压力不再增加
（通常使溢流阀的调定压力比系统最高工作压力高10%～20%）。
实际应用中一般有：作卸荷阀用，作远程调压阀，
作高低压多级控制阀，作顺序阀，用于产生背压（串在回油路上）。
溢流阀一般有两种结构：1、直动型溢流阀 。2、先导式溢流阀。
对溢流阀的主要要求：调压范围大，调压偏差小，压力振摆小，
动作灵敏，过载能力大，噪声小。
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