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為什么雙密封閥不能當作切斷閥使用？雙座閥閥芯的優(yōu)點是力平衡結(jié)構(gòu)，允許壓差大，而它突出的缺點是兩個密封面不能同時良好接觸，造成泄漏大。如果把它人為地、強制性地用于切斷場合，顯然效果不好，即便為它作了許多改進（如雙密封套筒閥），也是不可取的。為什么雙座閥小開度工作時容易振蕩？對單芯而言，當介質(zhì)是流開型時，閥穩(wěn)定性好；當介質(zhì)是流閉型時，閥的穩(wěn)定性差。雙座閥有兩個閥芯，下閥芯處于流閉，上閥芯處于流開，這樣，在小開度工作時，流閉型的閥芯就容易引起閥的振動，這就是雙座閥不能用于小開度工作的原因所在。
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SCHNEIDER LV431854
FHF 11327002
HIRSCHMANN NA2T/1004
Eaton Moeller KTS-R-150
MD MICRODETECTORS MDI63G 2054
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VICKERS CG5V6GWDMVH520
SPTHSE150041V1
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Dirak 216-9022 工件夾具
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ALLEN BRADLEY 700CF220DJ
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OMRON R88A-CTW002N
RIEGLER 259/6002
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BECKHOFF C9900-E715
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UNIVER P10B86624
Eaton Moeller 258908 NWS-GRG/6812/M
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SCHMERSAL 101006182 EDP55.VSW
AERZENER 155 944 000
ILME ILCC 1.5 AN
CASAPPA BOMBA BRH 71 LTS
SCHNEIDER ISM10305P
SCHNEIDER XS7T2DA214LD
Gefran-2019 F072684 KE0-6-M-B07C-1-4-0-I-P 2130B000X00
SCHNEIDER A9R15480
SHIMAISAI ZJT45M-3005PK/10-30VDC
RIEGLER 320.05
TACONOVA DN20 Bereich4-15L/Min 223.1300.000
CASAPPA HDP30.43-05S8/30.43 S
OMRON SGMJV-A5ADA61
schmersal AZM 161SK-12/12RKA-024+AZM161-B6
BANNER DIAO.443SMAH
OMRON A22Z-3453C
SALZER P110-61050-219M1
Gefran-2019 F033944 K31-8-H-P10M-1-4-D-I 2130X000X00
FINDER繼電器628291104000
Eaton Moeller 193136 XSMFDB0408-N
schmalz SAOF_23*60_NBR60_1_4_IG
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SCHNEIDER MTN485178
SCHNEIDER MTN2351-0325
MD MICRODETECTORS MDI58C 247
BURKERT 電磁閥175134
HPI M3AAP3031HL20A07N - Drainage L
MULTI-CONTACT 18.0201 MGK2VB10-14+MGK2R21
schneider-electric LRD14KN
SCHNEIDER 9080LB21
Eaton Moeller 46639 STI0,315(400/230)
Vester Elektronik GmbH PMI-20-30/3-P
Electronicon "E62.F81-203EL0
"
BURKERT 電磁閥146457
FHF 31810001
LEUZE 50131743 CML730i-R05-640.R/PN-M12
Eaton Moeller 290363 NZMH2-A125-S1
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Continental VSM-2
OMRON E5DC-RX0DSM-015
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BANNER WLS28-2XR430XQ
SCHNEIDER LEEX6659N
FRANK V82
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Contrinex DW-LS-713-M12
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CASAPPA 02001203 MOTOR PLM20.14S3-82E2-LEA/EB-N-EL
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TWK編碼器CRD66-4096R4096C2Z01
LEECO JEVA1825107K
RIEGLER 140.33
CASAPPA 76151660 HDP35.125-LSF/SE/35.125-LSF/SE-F9 D1
GEMUE S69050D39711413/N-1-1201
DG2D1221032 DM3903251-03/12 MA311026
Gefran-2019 F059775 KS-N-3-Z-B01C-M-V 2130X000X00
BERNSTEIN 6033371006 SN2-SU1Z HW
SIEMENS 7ML5004-2AA10-1C
SCHNEIDER ISM10304
SAES PS2GC50R2 0.2L/m
SCHNEIDER VW3A7735
KYTOLA VLK-3KA-D 2～5 l/min H2O
CASAPPA 76736200 HDP35.80/35.80/35.50-98/PLP20.31,5/20.8-H6 S-EL-BZ
Krom Schroder PFF704T/N 84372510 A2810-7806 20/+60℃ 50/60HZ
MD MICRODETECTORS MDI63A 1975
SCHNEIDER TM5SAO2L
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MD MICRODETECTORS MDI63D 374
Camille Bauer WT710-141D A0
TEHDASVALO H125/E27 QE125W GE-lamp
Chauvin Arnoux "P01143200 C.A 6240 Microhmmetro 10 A MEM , RS232 +
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SCHNEIDER WDE011730
CASAPPA 035636CX REAR SECTION KP20.14D*- * *-LGE/GD- *S4-N-P FS AV
CASAPPA PLP20.4D0-03S2-LEA/EA-N-EL
MTS RHM700MD631P102
EA ZD311523-NE052100
LEUZE 50105478 BCL 501i SM 102
OMRON E3Z-L81-M1TJ-IL2-1 0.3M
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HYDAC 需與SB330-32A1/112A9-330A相配的氣囊
CASAPPA 71000996 HDP30.51-LGG/GF/30.51-LGG/GF D
SCHNEIDER ZBY9W2M230
IPF OS18000C
STRACK SN5650-PMO-0065-20-B-N 220265
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SCHMERSAL 101197348 EX-RDLGB
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倒置桶型(倒吊桶）疏水閥的工作原理1.蒸汽疏水閥安裝在蒸汽加熱設(shè)備與凝結(jié)水回水集管之間。開車時，桶在底部，閥門全開。凝結(jié)水進入疏水閥后流到桶底，充滿閥體，全部浸沒桶體，然后，凝結(jié)水通過全開閥門排至回水集管。蒸汽也從桶體底部進入疏水閥，占據(jù)桶體內(nèi)的頂部，產(chǎn)生浮力。桶體慢慢升起，逐漸向閥座方向移動杠桿，直到完全關(guān)閉閥門。空氣和二氧化碳氣體通過桶體的排氣小孔，聚集在疏水閥的頂部。從排氣孔排出的蒸汽，都會因疏水閥的散熱而凝結(jié)。
KYTOLA SLM13-FG
Eaton Moeller TPBP-HS
CASAPPA 03569255 REAR SECTION KP20.14S*-12 *-LEB/EA- *N4-V-P-BZ
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UNIVER RS4000630175G
Gefran-2019 F020735 TR6-D-2-C-C-C-I-B-2 000X000X00188XX
Eaton Moeller 230802 ZSD-M18A1061
OMRON 7412-1300-2002
BANNER IT210SM6
小強工控 CARLO GAVAZZI PIB02CB23150MV
GEMU R677-25-D-78-71-14-0 DN25 D=32mm PP EPDM
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Acam PT2G-BD V1.0
STAHL 8040/1290Z-54C03SA80-01L04SA22
PULS電源ML50.100
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stahl 155897
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RIEGLER 252.32-ES
MANNER sensortelemetrie 39098
小強工控 CARLO GAVAZZI PS42L-AS02PR-H00
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TKD TROMMELFLEX PUR-HF 24*2.5 16/03
SOLARTRON 911225-3
LENNTECH 6100442 HEAD SEAL FOR PRO 8-1200-SP VESSELL
MD MICRODETECTORS MDI58B 650
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OMRON FLV-LN142W
CASAPPA 02004683 PLP20.16S0-95B6-LBE/BC-N-EL
dunkermotoren D554 SNR88943.04075
UNIVER CM-9627R
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ILME ILQM PA6
Gefran-2019 F064391 TK-R-1-Z-B02C-H-V 2130X000X00
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EMG ELDRO ED 50/6 06/516523
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KBK KBS80-30X41
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BANNER MSA-TE-24
MAXON電機110081
GIEBEL FilTec GmbH varioVENT 310-PA No.05.0030.05
FHF21266606 Signalhupe HGW 11 120 VAC 60 Hz
SCHNEIDER KTA4000CP43
MD MICRODETECTORS MDI63G 960
Wirtgen 113613 – 24VDC
Gefran-2019 F070547 GFW-3PH-150-600-0-0-2-0-1-1-0
Stego 01116.9-00
EC MOTION HECM266-F2.8A-1（311000-0039）
KEYENCE PZ-G52CP 感應傳感器
ATOS DK-1144
小強工控 CARLO GAVAZZI PS42L-PT02BO-M00
ELECRONICON "E54.E70-120E50 MKP 1UF ±10% uN 1700V AC
"
Turck BL20-PG-EN-IP Nr.6827248
BUCHER 100021618 MTKAVD-2M22
IPF LS207003
ELEMENT ELT 2-8
inteva 102.11113NG
Buhler NT.63-K4-MS-M3/520
LIKA編碼器C81-L-4096ZCU130L7 4096PPR-L7MT
SENECA K111D-C
Eaton Moeller 170M6081
供應進口法國HPI高壓齒輪泵P1BAN1004CL10B01V
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HYDAC ZBE06-05
Kübler 8.5020.2851.1024.T006
binder 73 43110H00 0005
NORD 100LA/4
Hoeft & Wessel AG HW 8612/F2 FHSS V.24 – ADAPTER
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PARKER P32EA14ESMBNNP
SCHNEIDER OVA51040E
ASM WS17KT-2000-R1K-L10-M4-D8 Nr:200728212104
RELECO C5-M20FNX/DC48V R .
SCHMERSAL AZM161-STS30-01 感應傳感器
BANNER TL50BLGY1R1ALS3
Gefran-2019 F305092 GFW-2PH-100-690-1-1-3-R-1-1-E
RIEGLER FA 05 M
OMRON EE-SX677P-WR 1M
RIEGLER 11.118-8 ESH
SCHNEIDER NSYCRN66200P
SCHNEIDER XUSL4E14F061N
SCHNEIDER PKE32W424
BANNER LEDWLA580SSP6-XQ
SCHNEIDER MPRPAF
UNIVER K2001000250G
DOLD安全繼電器48602 ML7853/61 AC220-240V 30S 100MS
Salzer H233-41300-192M4 感應傳感器
OMRON A22NN-BMA-NWA-G100-NN
PROXITRON LLK4 ON:6436I
CASAPPA MOTOR PLM20.31,5L6-48E2-LBE/BE-N-L-H-L*GB
SCHNEIDER XS512BLNAM12
FHF 22861403
BINKS 104023
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OMB s.r.l BM 50/3/MG2
SCHNEIDER A9N18346
Siemens 6ep1534-1sl01
SCHNEIDER GV2DP132BD
CASAPPA 66610605 PLP20.25/20.9 D/FS EL
AKM AKM3540112X-6.0
Saia-Burgess PCD2.M5540ZFA
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MD MICRODETECTORS MDI58F 2427
Eaton Moeller 278488 PKZM0-12-C
OMRON XS6W-6LSZH8SS1000CM-G
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COGNEX ID:825-0096-3R B
SCHNEIDER CA2SK20Q7
MD MICRODETECTORS MDI63G 1588
OMRON D4A-0011N
IGUS CF130.15.04.UL 1 4x1.5
Martens Elektronik GmbH BCD7224-3-5-1-1
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heidenhain ROQ425 ID: 631703-07 編碼器
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FRONIUS Deutschland GmbH 42.0201.2122
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ODE ODE 21W4KB250
OMRON G6B-2214P-US 5VDC
PARKER 4Z-C4L-50-BN-SS
BARKSDALE CP28-001E
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IPF AV000051
UNIVER J11A330400A
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具有優(yōu)異的耐應力[wiki]腐蝕[/wiki]破裂的能力，即使是含合金量低的雙相不銹鋼也有比奧氏體不銹鋼更高的耐應力腐蝕破裂的能力，尤其在含氯離子的[wiki]環(huán)境[/wiki]中。應力腐蝕是普通奧氏體不銹鋼難以解決的突出問題。在許多介質(zhì)中應用普遍的225雙相不銹鋼的耐腐蝕性優(yōu)于普通的316L奧氏體不銹鋼，而超級雙相不銹鋼具有極高的耐腐蝕性，再一些介質(zhì)中，如醋酸，甲酸等甚至可以取代高合金奧氏體不銹鋼，乃至耐蝕合金。
Gefran-2019 F051442 TPHADA-N-D-V-B05M-T 2130X000X00
TE-Connectivity-Kilovac LEV200A5ANF
SCHNEIDER ILS1B572PC1A0
MD MICRODETECTORS MDI58G 927
Eaton Moeller 129009 XMN3304-1
SCHNEIDER BSH0702P02A1A
Eaton Moeller 135610
Turck RU600-M3065-AP8X-H1141 No.18304
TEAFLEX PG21 6X5,5MM GPR21M06055
RINGSPANN RLK603 D125 DW100
ISO srl IPH-150/E
FEAS Artikel-Nr.:583816
DOLD安全繼電器66821 UH6937.02PS/001/61 DC24V
KISTLER 9333A
ROTOFLUX D15-107-18F
CASAPPA 0356845M REAR SECTION KP20.6,3D*-97N5-L**/GD-N-P-FS
LEUZE 68007104 MLC510R14-450/A
VAISALA HMP3608M1A3N2\KQF1500
Gefran-2019 F018309 TR1-B-2-B-2-A-J-D-1 030X000X00100XX
FHF 11241127
sodim.hauni 74PD-P1420-3
CASAPPA 79929375 KP30.61-67/20.20 D
BANNER TL50HYRGAOS3IQ
SAMES 1507375 油壓傳動閥
EUCHNER ES 572 N01 R 572-M 087
小強工控 CARLO GAVAZZI ER1830PPAS
axiomatic AX070105
Gefran-2019 F304531 850-R-RRR-1-0-00-0-M0-00-1-00
RIEGLER EWAVM3020SST
ZIMMER MKS2001A
SCHNEIDER NSYPAP43G
ILME ILTM GD24
HYDAC 0400DN010BN4HC
JUNG A590HWW Wippe mit Aufschrift Heizung Notschalter
WESTLOCK 2649ABYN00022FAN-AR2
CASAPPA 67060422 PLP20.16-01S1-LGE/GD/20.16-LGE/GD-S/FS EL
KOBOLD VKM8112C4PR25B
Gefran-2019 F064877 1650-D-RR0-0-0-00-0-M0-00-0-00
OMRON A22NL-MMM-TWA-G100-WC
MEGATRON MAB36A 12 2442 N
Phoenix 1534630
LEUZE 50117707 PRK5/2N
SCHNEIDER MTN585144
TUNKERS TCN-SW01-T12N
Eaton Moeller 115996 M22-SWD-KC22
FINDER繼電器405270060000PAC
小強工控 CARLO GAVAZZI UP62-80
MD MICRODETECTORS MDI63A 180
ATOS DPZO-LE-371-D5/I
LEUZE 50136087 DMU318-400.3/2CK-M12
CASAPPA 68260752 PLP20.8/20.4/20.4 D/FS-EL
EXSYS EX-47046ISE
WAMGROUP TYPE:700/15 0.83KW
SIEMENS 7ML1123-2CJ50
STANZANI Kit spot power alu
IPF IB120250
MD MICRODETECTORS MDI38G 1650
Phoenix 2302861 插頭
CASAPPA 03702000 HDP30.43S0-32S3-LMD/MC-N
MD MICRODETECTORS MDI63A 1315
ARON AM3UMA 3 3
schmalz SUC-CIR-SAB-80-F3/8
MD MICRODETECTORS AE1/CN-3H
UNIVER CL-113A
CASAPPA 69239525 PLP30.34-04S5/20.16/20.14 S/FS-L
RIEGLER 1144.01-13,5
Eaton Moeller 48238 S27-1/C
FINDER繼電器406181204301
SEFfram SF6-36 DP
SCHNEIDER XUSLZWB0600
IGUS CF6.07.18
OMRON UMAL
SCHNEIDER TC303-3A4DLS
ZIMMER LKPS2505AS2
Eaton Moeller 278186 DIULM32/21(230V50HZ,240V60HZ)
MILTONROY DHV RM0.5-10b DN15 PP1 0.5-10bar G1"-DN15 Serien Nr.94620 材質(zhì)：PP/PTFE(EPDM)
J&E 4000824524wz 工件夾具
HERZOG 8-2786 -345950-0 工件夾具
26SFAW21 DL2D3112025/OS FG5130
heidenhain 315420-04
ILME ILCAP 06 YC229
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BARKSDALE XTM-004-G1-S1-1(Art.No.0414-054 DC30
MD MICRODETECTORS MDI58B 1485
SCHNEIDER LC1F400P7
Eaton Moeller 170M5282
klay 8000-SAN-C-W-GS
Hengstler GEBER AC58/0013EK.42SGH Nr.0565001 編碼器
honeywell SPXCDALMTX4
SOMEFLU NI50-32-125、Q=5m3/h、H=15m
MD MICRODETECTORS MDI38G 444
MD MICRODETECTORS MDI63G 1170
BANNER P4GRK0608LRWE
pilz 312210
Eaton Moeller 149430 FCFSDNH00BB100
CASAPPA 06882848 FP40.87S1-06S8-LGG/GF-78A2-N-A
RIEGLER 22.641.4
DEPA DL50-SS-ZTTB
Gefran-2019 F033786 TC5-B-2-J-3-Q-I-B-3 005X000X00015XX
SCHNEIDER VW3A58734
DOLD安全繼電器53197 BA9053/012 AC1-10A AC24V 0-20S
SCHNEIDER MGU3.421.25
BANNER Q45BW22LV
Lumberg RST 5-3-VAD 1F-4-3-226/10 M
MOOG D661-4594 油壓傳動閥
SCHNEIDER JGL36225
RIEGLER 426.12-DREH
BARKSDALE UPA2（0413-314）
SCHUNK 9937328
Stromag AG 29-HGE-590-FV70-A1L
Eaton Moeller 172898
HELIOS 03060013R2"0/52230/400V1000W900MMLANG LA=1A SPEZ. BEL. 0.7W/QCM
CASAPPA FP20.40B0-13T1-POC/OC-N
DOLD安全繼電器24350 AD8851.14 AC50/60HZ 42V
Buschjost 8240200.91
Hpi Hydro perfect International P1CBN1006CW20C01N
schmalz SEM 100 SDS，NR.10.02.01.00321
walvoil VPR/3/ET/VMP12/L/02.TV/acRIEGLER 241.66-E Sera FLP2, No.90009396 空氣泵 AECO I45000095 SI5-DC1.5 NPN NO LC10
BURKERT電磁閥302531廠家進口
同時，較長的樣品傳輸管線也會引發(fā)故障，由于裂解爐在運行過程中需要定期進行清焦作業(yè)，此時一部分焦粒會由于采樣系統(tǒng)的抽吸作用進入到采樣和輸送管道當中并可能在停留在管道中的某些位置，進而發(fā)生管道堵塞，引發(fā)故障;并且，由于煙道氣中含有大量燃燒產(chǎn)生的氣態(tài)水，當這些水進入煙道樣品管線當中時，如果管道沒有良好的保溫伴熱就會凝結(jié)成液態(tài)水，或者與管道內(nèi)的焦粒和其他雜質(zhì)混合堵塞管道，或者直接影響儀表測量，甚至損壞儀表。
