DBDS10P1X/100 REXROTH安全閥，德國(guó)力士樂REXROTH全新原裝進(jìn)口品牌備件，質(zhì)量保證，現(xiàn)貨特價(jià)供應(yīng)；
安全閥是閥門家族比較特殊的一個(gè)分支，它的特殊性是因?yàn)椴煌谄渌y門僅僅起到開關(guān)的作用，更重要的是起到保護(hù)設(shè)備的安全。隨著我國(guó)經(jīng)濟(jì)建設(shè)的快速發(fā)展，在帶有壓力操控的設(shè)備項(xiàng)目工程越來(lái)越多。鑒于設(shè)備泄壓的需要，安全閥在保護(hù)設(shè)備過(guò)程中起到至關(guān)重要的作用。截止2013年各類安全閥制造商和貿(mào)易商已超過(guò)700多家，每日交易詢盤達(dá)到200多條，安全閥供求市場(chǎng)明顯升溫。通過(guò)第一季度數(shù)據(jù)初步分析，安全閥需求量要高出二十個(gè)百分點(diǎn)。安全閥是鍋爐、壓力容器和其他受壓力設(shè)備上重要的安全附件。安全閥(又稱泄壓閥)是根據(jù)壓力系統(tǒng)的工作壓力(工作溫度)自動(dòng)啟閉，一般安裝于封閉系統(tǒng)的設(shè)備或管路上保護(hù)系統(tǒng)安全。當(dāng)設(shè)備或管道內(nèi)壓力或溫度超過(guò)安全閥設(shè)定壓力時(shí)，自動(dòng)開啟泄壓或降溫，保證設(shè)備和管道內(nèi)介質(zhì)壓力(溫度)在設(shè)定壓力(溫度)之下，保護(hù)設(shè)備和管道正常工作，防止發(fā)生意外，減少損失。安全閥主要被廣泛應(yīng)用于：蒸汽鍋爐、液化石油氣汽車槽車或液化石油氣鐵路罐車、采油井、蒸汽發(fā)電設(shè)備的高壓旁路、壓力管道、壓力容器等。安全閥一般按結(jié)構(gòu)形式分為彈簧式安全閥和杠桿式安全閥、脈沖式安全閥，其中彈簧式安全閥應(yīng)用最為普遍;按連接方式分為螺紋安全閥和法蘭安全閥。安全閥口徑一般都不大，常用的都在DN15mm-DN80mm之間，超過(guò)150mm一般都稱為大口徑安全閥。2013年安全閥行業(yè)市場(chǎng)規(guī)模擴(kuò)大，這已是一個(gè)不爭(zhēng)的事實(shí)。我國(guó)能夠有資質(zhì)生產(chǎn)安全閥會(huì)。
上海韋米機(jī)電設(shè)備有限公司
雷 青（Mr） 手機(jī)Cel:13524123009（微信號(hào)）
電話Tel：021-61116913 傳真Fax：021-51334670
微信QQ：2896079243
網(wǎng)址Web:http://www.wei-mi.com
電郵E-mail：leiqing@wei-mi.com
地址Add：上海市浦東新區(qū)金豫路100號(hào)禹洲金橋國(guó)際2期2號(hào)樓907室
安全閥結(jié)構(gòu)主要有兩大類：彈簧式和杠桿式。彈簧式是指閥瓣與閥座的密封靠彈簧的作用力。杠桿式是靠杠桿和重錘的作用力。隨著大容量的需要，又有一種脈沖式安全閥，也稱為先導(dǎo)式安全閥，由主安全閥和輔助閥組成。當(dāng)管道內(nèi)介質(zhì)壓力超過(guò)規(guī)定壓力值時(shí)，輔助閥先開啟，介質(zhì)沿著導(dǎo)管進(jìn)入主安全閥，并將主安全閥打開，使增高的介質(zhì)壓力降低。
按結(jié)構(gòu)分
按其整體結(jié)構(gòu)及加載機(jī)構(gòu)的不同可以分為重錘杠桿式、彈簧式和脈沖式三種。
1.重錘杠桿式安全閥
重錘杠桿式安全閥是利用重錘和杠桿來(lái)平衡作用在閥瓣上的力。根據(jù)杠桿原理，它可以使用質(zhì)量較小的重錘通過(guò)杠桿的增大作用獲得較大的作用力，并通過(guò)移動(dòng)重錘的位置(或變換重錘的質(zhì)量)來(lái)調(diào)整安全閥的開啟壓力。
重錘杠桿式安全閥結(jié)構(gòu)簡(jiǎn)單，調(diào)整容易而又比較準(zhǔn)確，所加的載荷不會(huì)因閥瓣的升高而有較大的增加，適用于溫度較高的場(chǎng)合，過(guò)去用得比較普遍，特別是用在鍋爐和溫度較高的壓力容器上。但重錘杠桿式安全閥結(jié)構(gòu)比較笨重，加載機(jī)構(gòu)容易振動(dòng)，并常因振動(dòng)而產(chǎn)生泄漏；其回座壓力較低，開啟后不易關(guān)閉及保持嚴(yán)密。
2.彈簧微啟式安全閥
彈簧微啟式安全閥是利用壓縮彈簧的力來(lái)平衡作用在閥瓣上的力。螺旋圈形彈簧的壓縮量可以通過(guò)轉(zhuǎn)動(dòng)它上面的調(diào)整螺母來(lái)調(diào)節(jié)，利用這種結(jié)構(gòu)就可以根據(jù)需要校正安全閥的開啟(整定)壓力。彈簧微啟式安全閥結(jié)構(gòu)輕便緊湊，靈敏度也比較高，安裝位置不受限制，而且因?yàn)閷?duì)振動(dòng)的敏感性小，所以可用于移動(dòng)式的壓力容器上。這種安全閥的缺點(diǎn)是所加的載荷會(huì)隨著閥的開啟而發(fā)生變化，即隨著閥瓣的升高，彈簧的壓縮量增大，作用在閥瓣上的力也跟著增加。這對(duì)安全閥的迅速開啟是不利的。另外，閥上的彈簧會(huì)由于長(zhǎng)期受高溫的影響而使彈力減小。用于溫度較高的容器上時(shí)，常常要考慮彈簧的隔熱或散熱問(wèn)題，從而使結(jié)構(gòu)變得復(fù)雜起來(lái)。
3.脈沖式安全閥
脈沖式安全閥由主閥和輔閥構(gòu)成，通過(guò)輔閥的脈沖作用帶動(dòng)主閥動(dòng)作、其結(jié)構(gòu)復(fù)雜，通常只適用于安全泄放量很大的鍋爐和壓力容器。
DBDS10P1X/100 REXROTH安全閥
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R900428979 DBD. 15 G1X/ ...
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R900429045 HED 1 KA4X/100V
R900429050 DBDS 6 P1X/100V
R900429054 DBDA 10 G1X/200V
R900429149 ZDB 10 VT2-4X/50V
R900429168 DBDS 30 P1X/315V
R900429172 DBDA 6 P1X/315
R900429224 DBDS 6 G1X/50V
R900429264 G 174/08
R900429310 Z2DB 10 VC2-4X/200V SO30
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R900429711 DBDS 30 P1X/25
DBDS10P1X/100 REXROTH安全閥
按介質(zhì)分
按照介質(zhì)排放方式的不同， 安全閥又可以分為全封閉式、半封閉式和開放式等三種。
1.全封閉安全閥
全封閉式安全閥排氣時(shí)，氣體全部通過(guò)排氣管排放，介質(zhì)不能間外泄漏，主要用于介質(zhì)為有毒。易燃?xì)怏w的容器。
2.半封閉式安全閥
半封閉式安全閥所排出的氣體一部分通過(guò)排氣管，也有一部分從閥蓋與閥桿間的間隙中漏出，多用于介質(zhì)為不會(huì)污染環(huán)境的氣體的容器。
3.開放式安全閥
開放式安全閥的閥蓋是敞開的，使彈簧腔室與大氣相通，這樣有利于降低彈簧的溫度，主要適用于介質(zhì)為蒸汽，以及對(duì)大氣不產(chǎn)生污染的高溫氣體的容器。
按閥瓣開啟分
按照閥瓣開啟的最大高度與安全閥流道直徑之比來(lái)劃分，安全閥又可分為彈簧微啟封閉高壓式安全閥和彈簧全啟式安全閥兩種。
1.彈簧微啟封閉式高壓安全閥
微啟式安全閥的開啟高度小于流道直徑的1/4，通常為流道直徑的1/40一1/20。微啟式安全閥的動(dòng)作過(guò)程是比例作用式的，主要用于液體場(chǎng)合，有時(shí)也用于排放量很小的氣體場(chǎng)合。
2.彈簧全啟式安全閥
全啟式安全閥的開啟高度大于或等于流道直徑的1/4。全啟式安全閥的排放面積是閥座喉部最小截面積。其動(dòng)作過(guò)程是屬于兩段作用式，必須借助于一個(gè)升力機(jī)構(gòu)才能達(dá)到全開啟，全啟式安全閥主要用于氣體介質(zhì)的場(chǎng)合。
3.中啟式安全閥
開啟高度介于微啟式與全啟式之間。即可以做成兩段作用，也可以做成比例作用式。
DBDS10P1X/100 REXROTH安全閥
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R900431003 Z2S 10-3-3X/
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R900431047 ZDB 6 VP2-4X/100V SO11
R900431065 ZDB 10 VP2-4X/100
R900431071 ZDB 6 VA2-4X/315
R900431091 DZ 6 DP2-5X/20XYM W2
R900431092 LC 16 DB40D6X/-018
R900431164 Z2DB 6 VC2-4X/200
R900431167 ZDB 6 VB3-4X/100
R900431172 ZDR 6 DB2-4X/150YM
R900431287 3FRM 16-2X/100LD
R900431380 ZDB 10 VP3-4X/315V
R900431392 ZDR 10 DB3-5X/25YM
R900431397 S 25 A1.0/SO 68
R900431401 ZDB 6 VB2-4X/100
R900431411 3WH 6 A5X//V SO34
R900431444 G 281/03
R900431509 ZDR 10 DB2-5X/75YM
R900431525 4WS2EB10-4X/60B1T70K8AM
R900431526 DZ 6 DP1-5X/150X
R900431556 ZDR 6 DB1-4X/150YM
R900431558 W-DBDS 30 K1X/200V
R900431561 ZDB 6 VP3-4X/315
R900431570 DBDA 10 P1X/25
R900431571 DBDH 20 P1X/25
R900431628 3FRM 10-2X/16L
R900431678 ZDB 6 VA2-4X/50
R900431771 ZDR 6 DB2-4X/75YM
R900431772 ZDR 10 DP2-5X/150YMV
R900431828 Z2DB 10 VC2-4X/315
R900431891 DZ 6 DP1-5X/75YM
R900431927 MK 30 P1X/
R900431964 DBDH 20 G1X/25
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R900432465 DBDA 6 G1X/25
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R900432630 2FRM 10-3X/1Q
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R900432722 DB 6 K3-4X/315YV
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R900432727 DB 6 K1-4X/315YV
R900432731 DR 10 K5-3X/100YMV
R900432804 ZDB 6 VP2-4X/50
R900432844 DU 16 DG1-1X/630-63
R900432893 DBDH 15 G1X/25
R900432915 Z2S 22-1-5X/
R900432981 DZ 6 DP1-5X/210XY
R900432982 DZ 6 DP1-5X/25YM
R900433026 G 378/01
R900433031 Z2S 22-2-5X/
R900433032 Z2S 22 A1-5X/
R900433037 Z2S 22 B1-5X/
R900433058 ZDR 10 DB1-5X/75YM
R900433209 MS 5 A2X/V
R900433216 DBDS 6 G1X/315V
R900433262 ZDR 10 VP4-3X/50YM
R900433263 ZDR 10 VP4-3X/100YM
R900433335 ZDB 6 VA3-4X/100V
R900433336 ZDB 6 VB3-4X/100V
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R900433350 ZDR 6 DP2-4X/210YM/12
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R900433461 G 174/01J
R900433497 HED 1 OA4X/350KL220
R900433541 ZDR 6 DP2-4X/150YMJ
R900433564 DZ 6 DP2-5X/40XYM W2
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R900433703 HED 1 OA4X/50KL24
R900433771 DB 10 DP2-1X/315
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R900434143 ZDR 10 VP5-3X/200YMV
R900434144 DR10K5-3X/315YMV
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R900434583 ZDR 10 VA5-3X/50Y
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R900434675 Z2S 16-2-5X/V
R900434689 DBDA 15 G1X/50
R900434780 Z2S 10A3-3X/SO40
R900434781 Z2S 10B3-3X/SO40
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R900434793 Z2S 10-1-3X/SO30
R900434798 Z2S 10-1-3X/V SO30
R900434799 Z2S 10-2-3X/SO30
R900434800 Z2S 10B1-3X/SO30
R900434820 DBDH 10 P1X/400
R900434836 4TH 7 A05-1X/M01-008
R900434971 MH2DBV 32 P2-1X/420YM
R900434972 MH2DBVV 32 BP2-1X/420YM
R900434979 F 10 P1-3X/10L SO203
R900434980 S 15 A1.0/SO 68
R900435016 DBDS 10 P1X/200V
R900435042 Z2DB 10 VC1-4X/200
R900435108 DBD. 30 P1X/ ...
R900435222 DBDH 10 K1X/25
R900435291 FMR 15 G14-1X/O
R900435309 H-4WH 32 G6X/SO624
R900435367 DBDA 15 G1X/25
R900435384 FMR 20 G23-1X/O
R900435450 DBDS 6 P1X/315V
R900435504 DR 6 DP2-5X/150YMV/12
R900435525 Z2S 10B2-3X/
R900435578 HED 1 KA4X/350KL24
R900435663 G 409/01
R900435680 DR 6 DP2-5X/210YMV
R900435686 DR 6 DP2-5X/150YMV
R900435735 MH2WH 06 AG1X/003NM14
R900435755 DBDR 6 G1X/200
R900435824 4WS2EM10-4X/20B2ET315K8DM
R900435960 ZDR 6 DP7-4X/210YM
R900435968 Z2S 22-4-5X/
R900436019 4WH 6 C5X/SO82
R900436044 DBDA 20 G1X/100
R900436165 2FRM 5-3X/1,2Q SO237
R900436495 Z2S 22-1-5X/V
R900436516 DBDS 30 G1X/315V
R900436537 ZDR 10 VA5-3X/100Y
R900436586 DR 6 DP3-5X/150YMV
R900436608 DBDH 10 P1X/630
R900436618 G 431/01
R900436645 S 20 A1.0/J
R900436686 MHB 10 SFM1X/00Z315T15V15
R900436691 4WMM 6 G73-5X/
R900436800 Z2S 10B3-3X/
R900436801 Z2S 10-2-3X/V
R900436812 Z2S 10A2-3X/V
R900436868 MG 52 P1-1X/
R900436900 G 67/01FE/ZN
R900437010 Z2S 10A3-3X/
R900437011 ZDR 10 VA5-3X/50YV
R900437021 ZDR 10 VA5-3X/100YV
R900437023 ZDR 10 VP5-3X/100YMV
R900437053 DBDS 25 G1X/50V
R900437119 DR 6 DP7-5X/75YM
R900437123 ZDR 6 DA7-4X/210Y
R900437204 HED 1 OA4X/100KL24
R900437207 DBDA 10 P1X/200V
R900437261 M-SR 6 KD50-1X/
R900437272 Z2DB 10 VC1-4X/200V
R900437273 ZDB 6 VP2-4X/315JV
R900437275 Z2S 10A2-3X/SO40
R900437316 DBF 82-2-3X/315XYU
R900437338 MG 6 G1X/V
R900437348 DBDS 6 G1X/200V
R900437349 DBDS 10 G1X/400V
DBDS10P1X/100 REXROTH安全閥
按作用原理分
按作用原理分類，可以分為直接作用式安全閥和非直接作用式安全閥。
1.直接作用式安全閥
直接作用式安全閥是在工作介質(zhì)的直接作用下開啟的，即依靠工作介質(zhì)壓力的作用克服加載機(jī)構(gòu)加于閥瓣的機(jī)械載荷，使閥門開啟。這種安全閥具有結(jié)構(gòu)簡(jiǎn)單，動(dòng)作迅速，可靠性好等優(yōu)點(diǎn)。但因?yàn)橐揽拷Y(jié)構(gòu)加載，其載荷大小受到限制，不能用于高壓、大口徑的場(chǎng)合。
2.非直接作用式安全閥
這類安全閥可以分為先導(dǎo)式安全閥、帶動(dòng)力輔助裝置的安全閥。
先導(dǎo)式安全閥是依靠從導(dǎo)閥排出的介質(zhì)來(lái)驅(qū)動(dòng)或控制的。而導(dǎo)閥本身是一個(gè)直接作用式安全閥，有時(shí)也采用其他形式的閥門。先導(dǎo)式安全閥適用于高壓、大口徑的場(chǎng)合。先導(dǎo)式安全閥的主閥還可以設(shè)計(jì)成依靠工作介質(zhì)來(lái)密封的形式，或者可以對(duì)閥瓣施加比直接作用式安全閥大得多的機(jī)械載荷，因而具有良好的密封性能。同時(shí)，它的動(dòng)作很少受背壓的影響。這種安全閥的缺點(diǎn)在于它的可靠性同主閥和導(dǎo)閥有關(guān)，動(dòng)作不如直接作用式安全閥那樣迅速、可靠，而且結(jié)構(gòu)較復(fù)雜。
帶動(dòng)力輔助裝置的安全閥是借助于一個(gè)動(dòng)力輔助裝置，在低于正常開啟壓力的情況下強(qiáng)制安全閥開啟。這種安全閥適用于開啟壓力很接近于工作壓力的場(chǎng)合，或需定期開啟安全閥以進(jìn)行檢查或吹除粘著、凍結(jié)的介質(zhì)的場(chǎng)合。同時(shí)，也提供了一種在緊急情況下強(qiáng)制開啟安全閥的手段。
