减压阀是通过调节，将进口压力减至某一需要的出口压力，并依靠介质本身的能量，使出口压力自动保持稳定的阀门。从流体力学的观点看，减压阀是一个局部阻力可以变化的节流元件，即通过改变节流面积，使流速及流体的动能改变，造成不同的压力损失，从而达到减压的目的。然后依靠控制与调节系统的调节，使阀后压力的波动与弹簧力相平衡，使阀后压力在一定的误差范围内保持恒定。调压步骤
1、关闭减压阀前的闸阀，开启减压阀后的闸阀，制造下游低压环境；
2、将调节螺钉
减压阀
减压阀
按逆时针旋转至最上位置（相对最低出口压力），然后关闭减压阀后闸阀；
3、慢慢开启减压阀前的闸阀至全开；
4、顺时针慢慢旋转调节螺钉，将出口压力调至所需要的压力（以阀后表压为准）；调整好后，将锁紧
螺母锁紧，打开减压阀后闸阀；
5、如在调整时出口压力高于设定压力，须从第一步开始重新调整，即只能从低压向高压调。
主要作用
减压阀的作用原理是靠阀内流道对水流的局部阻力降低水压，水压降的范围由连接阀瓣的薄膜或活塞两侧的进出口水压差自动调节。定比减压原理是利用阀体中浮动活塞的水压比控制，进出口端减压比与进出口侧活塞面积比成反比。这种减压阀工作平稳无振动；阀体内无弹簧，故无弹簧锈蚀、金属疲劳失效之虑；密封性能良好不渗漏，因而既减动压（水流动时）又减静压（流量为0时）；特别是在减压的同时不影响水流量。
水流通过减压阀虽有很大的水头损失，但由于减少了水的浪费并使系统流量分布合理、改善了系统布局与工况，因此总体上讲仍是节能的。介质为蒸汽的场合，宜选用先导活塞式减压阀或先导波纹管式减压阀。为了操作、调整和维修的方便，减压阀一般应安装在水平管道上。
武汉盛美特机电设备有限公司主营：REXROTH德国力士乐、VICKERS美国威格士、ATOS意大利阿托斯SUN美国太阳、DENISON法国丹尼逊、PARKER美国派克、DUPLOMATIC意大利迪普马、HAWE德国哈威、HYDAC贺德克，CALZONI意大利卡桑尼、MOOG美国穆格,HYDRAFORCE海德福斯,雅歌辉托斯等,价格优势，欢迎询价。
武汉盛美特机电设备有限公司
联系人：白建新
Q Q: 2480594461
手机: 18717137600
电话：027-65384569
地址：武汉市武昌区白沙洲观澜天地三栋809室PV140R1K1T1NKLC、PV140R1K1T1PFWS、PV140R1K1T1N000
派克PARKER减压阀VMY160H10V1P
PV140R1K1T1NFR1
pV140R9K1T1NFWS
PV140R1F1T1NMRZ
D41FHB31C1NE00 D41FHB31E1NB00
D91FBE01HC4NF00 D91FHB31F1NE00
派克丹尼逊柱塞泵PV6-2R1E-C00特价，油田备货
T6CC-031-008-1R00-C110
D111FBB32LC1NG00 D111FHE01L4NB00
PV140R1D1T1NUCB
D41FBB32FC2NF00D41FBE01FC1NF00
PV046R1K1T1NFWS
PAVC100R4222
D91FBE01HC4NF00 D91FTE01HC4NF00
PV140R1D1T1NYCC
D81VW4C4NJP、D3W20BNJP
PV140R1K1TINFR1
PV140R1K1T1WMR1老型号
D81VW4C4NJP、D3W20BNJP
R1E02 2511 A1
溢流阀631B-4-3/4-2
PV140R1D3DFNFWS
D1FBE01CC0NS00-16
FM3DDSV
PARKER 派克柱塞泵PAVC65B2L4AP13
PV140R1D1T1NUCB
RDM2PT35KVG15
D41FHB31F1NE00 DD41FHE01E1NE00
D81VW20B4NJP、D1VW004CNJP
派克比例阀D91FBE01HC1NG00
PV140R1K1T1NMMC现货派克PARKER
PV140R1D1T1NWCC
派克比例阀D41FHB31C1NB00
PV140R9K1T1NMMC升级型号
PV180R1K1S1NFWS
派克PARKER减压阀VMY160H10V1P
D91FBE01HC1NF00 D41FHE01C1NB00 D41FHE01C1NE00
R4U10  533 30  A1
D91FBE01HC1NF001
D41FBE01FC1NF00
PV140R1K1T1NMMC现货派克PARKER
PV080R1K1T1NMMC
PV180R1K1T1NMMC
PV140R1K8T1NMMC
D1VW001FNJW91PV016R1K1T1NMMC
派克变量柱塞泵PAVC65R4213特价，
PARKER柱塞泵PV140R1K8T1NFWSPARKER派克柱塞泵
PV270R1K1T1NMMC现货
TE0330AW260AAAA
D41FHB31C1NE00
PV016R1K1T1NMMC
PV140R1D3CDNMR1
D1VW20BNTP70
D41FBE01FC1NF00 D41FHB31E1NE00
D3DW071HNJW
PV180R1K1T1NMFC
PV140R1E1T1NMTP
D1VW20HNJW+
PV016R1K1TINFR1
T6DCC-038-010-006-3L04-A101
D41FSE02C4NXW039
D41FHE02E1NB00 D31FHE01C4NB00
D31FBE01CC4NF00
PV016R1K1T1NMMC
D41VW3C1NJW89++
PV023R1K1T1NFWS
PV140R1F3T1NTCC
PV140R1F3T1NTCC
D41FHB31E1NB00 D41FHB31E1NE00 D41FHB31F1NB00
PV140R1D1T1NFPV
PV140R1K1T1NMMK
D3W20DNJP
PV016R1K1AYVMMC
PV140L9L1L1NWCCK0172
PV140R1K8T1NMMC原装
PV140R1K1T1NMMK、PV140R1K1T1NMMW、PV140R1K1T1NWCC
派克比例换向阀D41FTE01FC2NF0038
D41FHB31C1NE00
PV092R1K1T1NMMC
PV180R1K8S1NFWS
溢流阀631B-4-3/4-2
PV032R1K1H5NPTZ、PV032R1K1H5NPTZ
RDM2PT21SVG
D31FHE01A4NB0047
T6DCC-038-010-006-3L04-A101
派克PARKER柱塞泵
PV092R1K1T1NMMC

PV140R1K1T1NFR1
PV140R1K1T1NFWS
D41FBE01FC4NF00
派克PARKER柱塞泵
D31FHE02C1NB00
PV140L1K1T1NFWS
D31FBE01CC4NF00
PARKER 派克阀D1VW020DNJW
PV140R1K1T1NMR1
D41FHB31E1NE00
D91FBE02HC4NF00 D31FTE01CC1NF00
DSDA1002P07K
T6DC-038-022-3R09-B1
PV140R1K1T1NMMW
D31FBE01CC1NF00 D31FBE01CC1NG00 D41FBE01FC1NG00
R4U10  533 10 A1 099      
PV180R1K1T1NMFC
派克比例换向阀D41FBE01FC4NF00
D41FBE02FC1NF00
PV140R1F3T1NUPM
PV140R1K1T1NMR1
D41FTE01FC1NF00
D31FHE02C1NB00
SCPSD-400-14-15+SCK-400-05-55
PV140R1K1T1PFWS
DWEE527P20ELAF、DWLC525P15E
T6ED-052-045-1L01-B1
SCPSD250-14-15+SCK400-02-55
PARKER 派克液压泵PV6 2R1E C02
PARKER 派克马达TG0530MW460AAAB
D1VW008CNJW
D31FHE02C1NBOO+5004072
PV140R1K8T1NFWS升级型号PV140R1K8T1NMMC
RS10M25S4SN1JW40、RS10R25S4SN1JW
D91FBE01HC4NF00 D91FHB31F1NE00
PV080R1K1T1NFWS
PV016R1K1AYVMMC
D3DW11CNJW、D3DW20DVJP
原装派克油泵PV180R1K1T1WMMC
RDM2PT21SVG
VICKERS威格士泵PVH141R13AG30BAB010A
D31FHE01A4NE00 D91FBE02HC4NF00
PRDM3AA21SVG
PV063R1K1T1NMMC
parker派克比例阀D31FHE01A4NE00
PV063R1K1TINFR1
PS100-POHO DB
F12-060-RS-SV-T-000-000-0
PV092R1K1T1NFWS
D3W4CNJW30
PV140R1K1T1NFHS
PV080R1K1T1NMMC
T6ED-045-028-1L01-B1
PARKER柱塞泵PV140R1K8T1NFWSPARKER派克柱塞泵
PARKER派克柱塞泵PV046R1K1T1WMMC
R4R10-53311-B1
D3W020BNYW
PARKER比例换向阀D41FTE01FC1NF00
D31FHE02C1NB00 D31FBE02CC1NF00
EVSA315A101
PV140R1K1T1NWCC
PV140R1D3BBNFWS
PAVC100R4222
PVLC1126097
PV140R1K1T1NMMW
PV140L1K1T1NMMC
PV032R1K1H5NPTZ、PV032R1K1H5NPTZ
PV140R1K8T1NFHS
PCDOOA-400
EVSA315A101
派克PARKER柱塞泵PV140R1K1T1NMMC现货
派克PARKER比例减压阀DWLC522P20B
D91FBE01HC4NF00 D91FTE01HC4NF00
D41FBE01FC4NF00
PV140R1K1T1NWCC
D41FHB31E1NE00
PV140R1K1T1WMMC
PARKER 派克阀D3W020BNJW
D41FHB31E1NB00 D41FHB31E1NE00 D41FHB31F1NB00
PV140R1F1T1NFWS
PV140R1K1T1NMR1
PV140R1K1T1WMR1老型号
D1FVE02BCVF0A      
D41FHB31E1NE00 D41FHB31F1NB00
D41FHB31E1NE00
派克parker比例方向阀D31FHE01A4NE00
PV092R1K1T1NMMC
PWD00A-400
派克比例换向阀D41FBE01FC4NF00
RS10R17S4SN1TP、PRDM3PP16SVG、
PV270R1K1T1NMMC
D3FBE02SC0VKW012
T6C-005-1R01-B1
PV180R1L1T1NUPR
PV140R1K8S1NFWS
D91FBE01HC1NF00 D41FHE01C1NB00 D41FHE01C1NE00
D91FBE01HC1NF00
PV140R1F1T1NYCC
派克电磁换向阀D3DW1CNJP
CPOM4DDHTV25
D31FBE01CC4NF00
D1VW20HNJW+
D41FHE01E1NB00
D41FHB31E1NE00
PV180R1K1T1NMMC
PV140R1F3A1NFPR
PV180R1K1T1NFWS
D91FBE01HC4NF00 D91FHB31F1NE00
D3W20DNJP
C5V10-611-B1 (026-67051-0)
PV140R1K8T1NMMC
FM4DDFVHT
PV180R1K1S1NFWS
PCDOOA-400
TG0625BS020AAAB
PV140R1K1T1NMMK
PARKER 派克阀D1VW006CNJW
TE0330AW260AAAA
D1VW20HNJW+
PV140R1K1T1NFHS派克
D41FHB31F1NE00
原装PV140R1K1T1NMR1派克柱塞泵
PZD00A-400-14
D41FHE01F1NE00 D41FHE01F4NB00 D91FBB32HC4NG00
PARKER柱塞泵PV140R1K1T1NMMC
PARKER 派克柱塞泵PV063R1E8T1NMMC
TG0625BS020AAAB
PV032R1K1AYNMTP+ PGP511A0080CA1H2NL1L1B1B1
PVLC1126097
D1VW006CNJW
D31FTE01CC1NF00 D111FBB32LC1NG00
PAVC65R4213
原装派克柱塞泵PV016R1K1T1NMMC
D41FHB31E1NE00
PV080R1K1T1NMMC
PV092R1K1T1NFWS
D41FBB32FC2NF00D41FBE01FC1NF00
C4VO6 5932 B1     016-88588-0
PV023R1K1T1NFWS
PV140R1K4T1NMMC派克
PV140R1D3CDNMR1
PV140R1K1T1NWCC
D1SE83BNJP
D1VW20BNTP70
PV080R1K1T1NMMC
RB2
PV140R1K1T1NMR1
派克PARKER电磁阀D3W4CNJP
D31FTE01CC1NG00
PV016R1K1T1NMMC
PARKER 派克柱塞泵PV270R1K1T1WMMC
PV140R1K1T1NFR1
PV140R1K8T1NFWS
PRDM2AA06SVG
PV270R1K1T1NMMC现货
D41FBE01FC1NF00 D41FHB31E1NE00
D41FHB31E1NE00
PV140R1D1T1NSLC
PV140R1K1T1NFR1
ZUDB1PT2Z07K
D41FHE01C4NB00D41FTB32FC1NF00
PV092R1K1T1NMMC
Denison丹尼逊阀R6V03-593-10-09-GOQ-A1
D31FBE01CC1NF00 D31FBE01CC1NG00 D41FBE01FC1NG00
PAVC65R4213
PARKER比例换向阀D41FTE01FC1NF00
柱塞泵老型号是PV140R1K1T1NFWS现货
D31FTE01CC1NG00  D41FTE01FC1NF00
PV140R1K1T1NKLC
D1FVE50BCVLB35
D3DW071HNJW
PARKER 派克液压泵PV6 2R1E C00