武漢盛美特機(jī)電設(shè)備有限公司
:蔡韻
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:詢價(jià)
威格士VICKERS DG4V-5-0C-M-U-ED6-20 法蘭密封的原理是:法蘭在螺栓預(yù)緊力的作用下,把處于密封面之間的墊片壓緊。施加于單位面積上的壓力(壓緊應(yīng)力)必須達(dá)到一定的數(shù)值才能使墊片變形而被壓實(shí),密封面上由機(jī)械加工形成的微隙被填滿,形成初始密封條件。所需的這個(gè)壓緊應(yīng)力叫墊片密封比壓力,以y表示,單位為MPa。密封比壓力主要決定于墊片材質(zhì)。顯然,當(dāng)墊片材質(zhì)確定后,墊片越寬,為保證應(yīng)有的比壓力,墊片所需的預(yù)緊力就越大,從而螺栓和法蘭的尺寸也要求越大,所以法蘭聯(lián)接中墊片不應(yīng)過(guò)寬,更不應(yīng)該把整個(gè)法蘭面都鋪滿墊片。當(dāng)設(shè)備或管道在工作狀態(tài)時(shí),介質(zhì)內(nèi)壓形成的軸向力使螺栓被拉伸,法蘭密封面沿著彼此分離的方向移動(dòng),降低了密封面與墊片之間的壓緊應(yīng)力。如果墊片具有足夠的回彈能力,使壓縮變形的回復(fù)能補(bǔ)償螺栓和密封面的變形,而使預(yù)緊密封比壓值至少降到不小于某一值(這個(gè)比壓值稱為工作密封比壓),則法蘭密封面之間能夠保持良好的密封狀態(tài)。反之,墊片的回彈力不足,預(yù)緊密封比壓下降到工作密封比壓以下,甚至密封處重新出現(xiàn)縫隙,則此密封失效。因此,為了實(shí)現(xiàn)法蘭聯(lián)接處的密封,必須使密封組合件各部分的變形與操作條件下的密封條件相適應(yīng),即使密封元件在操作壓力作用下,仍然保持一定的殘余壓緊力。為此,螺栓和法蘭都必須具有足夠大的強(qiáng)度和剛度,使螺栓在內(nèi)壓形成的軸向力作用下
:20 -A6-20 SP-COI-230/50/60/80
SP-COI-230/60AC/80 DR 6 DP2-5X/210Y R000413243齒輪泵PFG-174-D
ATOS放大板E-MI-AC-01F 20/2
AGMZO-A-10/100
DKE-1631/2 現(xiàn)貨
DLOH-3A-UX24DC
AGRL-10
DHU-0631/2-SP-667/24DC SUN-3581 RVET-LAN
SUN-3582 RSFC-LDN
SUN-3583 COBA-XCN
SUN-3584 LRFC-XFN
SUN-3585 CXAD-XAN
SUN-3586 RDBA-LAN 直流式溢流閥
SUN-3587 DAAA-MCV-223+760-223
SUN-3588 DKHR-8HV
SUN-3589 FQCA-XAN-GCU(20LPM)
SUN-3590 FDCB-LAN-DBY
SUN-3591 CWCA-LHN-MBB
SUN-3592 FDBA-LAN-GBX
SUN-3593 PBDB-LAN-ECB
SUN-3594 CKGD-XAN
SUN-3595 CCEA-LIN
SUN-3596 9JN9RPECLAN
SUN-3597 SBY003
SUN-3598 SPN-HJ30-2A-POT-SS-5KD-11-G
SUN-3599 SPN-HJ1M2-12/24
SUN-3600 CKEBXCN-YAV
SUN-3601 EBY/S
SUN-3602 CVEV-SAN
SUN-3603 DAAL-MCN-224
SUN-3604 RVEA-KWN
SUN-3605 RDHA-LBN
SUN-3606 RVCA-LAN
SUN-3607 CACA-LHN 配套密封組件T-11A
SUN-3608 CBCA-LHN-XEV/S
DHU-0711-SP-667/24DC
AQFR-10
PFE-31016/1DT
RZMO-A-010/210
DKE-1711/DC24
DKE-1710/DC24
DHI-0713/DC24
AGAM-10/10/210DC24
DKE1713 230AC
DPHI-3713/D-X24DC
DHI-0713-X 24DC
SDHI-0711-23
AGRL-32
DKE1711 230AC
PFG-142-D
SDPHI-3713/D55
DHU-0701/2P/18
溢流閥AGIU-20/210/D
比例換向閥DPZO-A-273-S5 30
控制蓋板LIMM-4/350/V 12
控制蓋板LIMM-5/350/V
電磁換向閥DPHI-3714/R 220V(前面不要加S的)
SDHE-0711-X24DC
KG-031/210/V
DHA-0631/2/PA-M/7 24DC
RZGA-A-033/80/PA-M/7
RZMA-A-030/180/PA-M/7
SP-ZM-7P
DKZOR-AE-151-L5/I
KQ-012
E-ME-T-01H
E-ME-K-PID
泵 PFG-142-D
HG-031/210/23
溢流閥 HMP-011/100/22
DHI-0711-X24dc
DHI-0631/2-X24DC
QV-10/2標(biāo)準(zhǔn)型號(hào)
E-ME-AC-01F
DLHZO-T-040-L11
DR 6 DP2-5X/210YM R000455316E-ATR-6/400/I 流體控制 閥 電磁閥
E-ATR-6/100/I 流體控制 閥 電磁閥
HP0651A10AN 流體控制 電和氣動(dòng)驅(qū)動(dòng)器 閥門執(zhí)行器壓力傳感器 DT1V-250
壓-5-100,CDK-5-95,CDK-5R-P-100,CRH1,CRH2,CRH3-PYD,CR4M-G24,CR5M-G24,CSV2F-25,CSV3C-315,CSV3F-50-1/2,CMV1B-500,CMV1E-200,CMV1E-80,CMV1EX-100,CMV1F-80,CMV1BR-500,CMV2B-500,CMV2BR-400,CMV2C-200,CMV3BR-350,CMV3CR-250,CMV3F,D3-1????,D3-1R,D4-1R,DA2-PYD,DK2/200/OR-L5K,DMV53-E/E-80/80,DG2H,DG2HS,DG2M,DG20MS,DG33,DG34,DG35,DG35-1/4,DG35-Y1,DG35-Y8,DG35V-YS6,DG36,DG36-M-1/4,DG364,DG365,DG365-1/4,DG365-M-1/4,DG61R,DG62,DG62R,DG1RF,DG1RF,DG1RS,DG1RS,DG5E-100,DG5E-200,DG5E-400,DG8F,DT1V-250,DT2V-1,DT2V-2,DT1-250,DT1-1000,DT11-250,DT2-1-MSD-T7,DT2-2-MSD-T7,DT2-2,DT2-4,DR2-0,DR2-0R,DRH1,DRH3,DRH3PVV,DS2-0,DS2-1,DV3GHR-350,DV5PHR-350,DZ3-1R,DZ3-1R,DLS1N-1-B50/E1-1-180,EB1-1,0,ED21,ED31,ER11,EV1G1-12/24,EV22K2-12/24,KM7831010,EV1M2-12/24,EM11S-G24,EM21V-G24,EM21V-WG230,EM21V-3/8A-G24,EM21V-3/8A-WG230,EM21V-3/8N0.8-WG230,EM21V-1/2-X24,EM31S-1/2-G24,EM41S5105,EM41V-G24,EM42V-3/4-G12,EMP21SG-L24,EMP31-G24,EMP31V80-G12,F21-1-1/4,FR2-1,FR2-2,F32-16,F40-20,F50-25,F63,F63-30,F80-36,F100-45,F125-60,F160-76,F200-100,HR2-1-1/2,G21-1-G24,G21-1B-G24,G21-2-G24,G22-0-G24,G22-1-G24,G22-2-G24,GS2-0-G24,GS2-0R-G24,GS2-1-G24,GS2-2G24,GS2-2-1/2G24,GS2-2-L24,GS2-2R-G24,GS2-3-G24,GS2-3-L24,GS2-3R-G24,GS2-4-G24,GR2-0-G24,GR2-0R-G24,GR2-1,GR2-1-G24,GR2-1-A24,
MF1002A10HB 流體控制 電和氣動(dòng)驅(qū)動(dòng)器 閥門執(zhí)行器
20SF08-20SF0-21SF08-22SF08-23SF20-22SF20-23SL08-22SP08-20SP08-21SP08-2