REXROTH壓力閥* 溢流閥:DBD,ZDB,Z2DB,DB-4X/W65,DBW-4X/W65,DB-5X,DBW-5X, 減壓閥:DR6DP,DR10DP,ZDR,DR-4X,DR-5X,DR10K, :李兵 : : 公司地址:上海市黃浦區(qū)北京東路668號上海科技京城東樓20樓C2 REXROTH壓力閥* 德國博世REXROTH力士樂減壓閥——該閥門的減壓比必須在一定程度上高于系統(tǒng)值; 即使在zui大或者zui小流量時它也應該能夠對正作用或者反作用控制信號做出響應。這些閥門應該針對有用控制范圍選擇,即zui大流量的20%到80%。正常為等比型或者具有等比特性。這些類型的閥門本身具有比例控制所要求的*流量特性及流量范圍。 減壓閥的種類很多,常見的有:先導活塞式減壓閥、薄膜式減壓閥、波紋管式減壓閥、比例式減壓閥、自力式減壓閥、直接作用活塞式減壓閥、背壓調節(jié)閥等等。它們分別適用于不同的工作介質。REXROTH力士樂減壓閥是一種自動降低管路工作壓力的專門裝置,它可將閥前管路較高的水壓減少至閥后管路所需的水平。減壓閥廣泛用于高層建筑、城市給水管網(wǎng)水壓過高的區(qū)域、礦井及其他場合,以保證給水系統(tǒng)中各用水點獲得適當?shù)姆账畨汉土髁俊?/em>鑒于水的漏失率和浪費程度幾乎同給水系統(tǒng)的水壓大小成正比,因此減壓閥具有改善系統(tǒng)運行工況和潛在節(jié)水作用,據(jù)統(tǒng)計其節(jié)水效果約為30%。<br />REXROTH力士樂減壓閥的基本作用原理是靠閥內流道對水流的局部阻力降低水壓,水壓降的范圍由連接閥瓣的薄膜或活塞兩側的進出口水壓差自動調節(jié)。近年來又出現(xiàn)一些新型減壓閥,如固定比例式減壓閥,定比減壓原理是利用閥體中浮動活塞的水壓比控制,進出口端減壓比與進出口側活塞面積比成反比。REXROTH力士樂減壓閥是采用控制閥體內的啟閉件的開度來調節(jié)介質的流量,減壓閥將介質的壓力降低,減壓閥同時借助閥后壓力的作用調節(jié)啟閉件的開度,減壓閥使閥后壓力保持在一定范圍內,減壓閥并在閥體內或閥后噴入冷卻水,減壓閥將介質的溫度降低,減壓閥這種閥門稱為減壓減溫閥。減壓閥該閥的特點是在進口壓力不斷變化的情況下,減壓閥保持出口聽壓力和溫度值在一定的范圍內。 力士樂型號 4WREE10E75-22/G24K31/F1V 4WRZE16E1-150-70/6EG24N9ETK31/F1D3M 4WRPEH6C4B24L-2X/G24KO/A1M DBEM10-51/315YG24K4M 4WE6E6X/SG24N9K4/V 4WE6D6X/SG24N9K4/V 4WE6G6X/SG24N9K4/V 4WRZ10W8-85-7X/6EG24N9EK4/D3M 4WRZ16W8-150-7X/6EG24N9EK4/D3M E-A4VSO180DR/30R-PPB13N00 A4VSO180DR/30R-PPB13N00 5811290050 0821402012 1834484040(:4WRPH6C3B04LEX/GZ4Z4/N) 1PF2G2-4X/016,RC20MB0510625022 :1834484040(:4WRPH6C3B04LEX/GZ4Z4/N)" AB31-01/220A140S-T63A HED80P1X/630K14S E-A4VSO180DR/30R-PPB13N00 A4VSO180DR/30R-PPB13N00 4WRZ10W8-85-7X/6EG24N9EK4/D3M 4WRZ16W8-150-7X/6EG24N9EK4/D3M PV7-16/10-20RE01MCO-10 PV7-17/25-45RE01MCO-08 SL10PA1-42 HSA06A001-30/MOO FD12PA21B03V DBDS6K18/315 DBDS10K18/315 4WRZ10W8-85-7X/6EG24N9EK4/D3M 4WRZ16W8-150-7X/6EG24N9EK4/D3M E-A4VSO180DR/30R-PPB13N00 A4VSO180DR/30R-PPB13N00 5811290050 0821402012 1834484040(:4WRPH6C3B04LEX/GZ4Z4/N) A4VS071DR/10R-PPB13N00 Z1S6T1-3X/V Z2FS6-2-4X/2QV Z2S6-1-6X Z1S10T1-3X/V Z2FS10-5-3X/SV Z2S10-1-3X Z2DB6VD-2-4X/315V 4WRAE6W-15-2X/G24K31/F1V ZDC6P-20/M 4WRAE10W1-60-2X/G24K31/F1M ZDC10P-2X/M FD12PA2X/B03V A4VS040DR/10R-PPB13N00 Z2FS6-2-4X/2QV Z2S6-1-6X Z1S6T1-3X/V Z1S6-T1-3X/V Z2S10-1-3X Z1S10T1-3X/V FD12PA2X/B03V A4VS0125DR/22R-PPB13N00 FD16PA2X/B03V 4WRZE16W8-150-7X/6EG24N9K31/F1D3M ZDC16P-20X/XM 4WREE6W1-16-22/G24K31 1834484040 0811404122 4WREE6V16-20/G24K31/A1V AGEV1-12502-FA/HM/H SL10PA1-42 HSA06A001-30/MOO FD12PA21B03V DBDS6K18/315 DBDS10K18/315 0811404405 HED40P-10-5Z14 DBW10B-50/200G24 DBW2050/100G24 DBW10B1-30/100G24Z56 DBW20B1-30/200G24Z56 DBW20B1-52/100-6EG24N9K4 DBW10B1-52/200-6EG24N9K4 4WE10J-31/CG24 4WEH16J-7X/EG24ET 4WEH16E73/16EG24N9ZTK4 4WE10E33/EG24N9K4 4WEH16D73/6EG24N9K4 4WEH16E50/6AG24E 4WEH16D50/6AG24 S10A12 S25A12 DBDH10G-1X/200 DBDH10G-1X/100 DR20-1-30/100YM MK30G12/2 DV6G-1-10/2 Z2FS16-32/S Z2FS10-32/S S10A1201 S10A1201 Z2S10 Z2FS102-4X/20 Z2S16 Z2FS16-3X/52 4WE10D-3X/52 MNR:R900906460,4WE6HA62/ES110N9K4 MNR:R900571915,HED8OP12/200K14 0810091451 0820206100 0820023025 0820023501 3DREP6-20/45EG24N9K/M A2FM250/60W-VPB010 A2FM250/60W-VPB010用 Type:A4VG56EP2D1/32R-NZCO2F005SH,MNR:2056776S/N:7043767,FD04W11 MNR:R9026025077202FD:D4W19 4WE10C-3X/CG24N9K4 4WEH25J-7X/6EG24N9ETS2K4 DBW10B-2-5X/315U6EG24N9K4 DBW10B-2-5X/100U6EG24N9K4 4WE10J-3X/CG24N9K4 4WE6E-5X/100U6AG24N9K4 DBW30B-2-5X/100U6EG24N9K4 DBW10B-2-5X/100U6EG24N9K4 M3SED6CK1X/350CG24N9K4 HED80P2X/200K14 VT-NE30-2X R900561274 R900469302 R900205513 R900424174 4WRL16V200M-3X-G24Z4/M 4WREEM6EI6J-20/G24K34/B6V-735 LC16A30D7X/V LFA16KWA-71/V LFA25RF71/X00Z00V 4WE6D62/EG24N9K4/V LFA25G-71/V LC25A10E7X/V 4WMM6J53/V LFA16D-7X/FV LFA16D-7X/FV 4WE6D62/EG24N9K4/V H-4WMM16C7X/V M-3SEW6C3X/420MG24N9K4/V M-3SEW6C36/420MG24N9K4/V 4WRTE10V1-100L-4X/6EG24ETK31A5M 4WRKE16E1-200-P3X/6EG24K31A5D3M 4WRAE10E60-2X/G24N9Z31/A1V DBETE-5X/200-G24K31M 4WEH10E42-4X/6EG24N9ETK4/B10
|