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销售专员 林惠燕
信号与屏蔽接地
一般要求信号线必须要有的参考地，屏蔽电缆遇到有可能产生传导干扰的场合，也要在就地或者控制室接地，防止形成“地环路”。信号源接地时，屏蔽层应在信号侧接地；不接地时，应在PLC侧接地；信号线中间有接头时，屏蔽层应牢固连接并进行绝缘处理，一定要避免多点接地；多个测点信号的屏蔽双绞线与多芯对绞屏蔽电缆连接时，各屏蔽层应相互连接好，并经绝缘处理，选择适当的接地处单点接点。
5）对变频器干扰的抑制
变频器的干扰处理一般有下面几种方式：
加隔离变压器，主要是针对来自电源的传导干扰，可以将绝大部分的传导干扰阻隔在隔离变压器之前。
使用滤波器，滤波器具有较强的抗干扰能力，还具有防止将设备本身的干扰传导给电源，有些还兼有尖峰电压吸收功能。
使用输出电抗器，在变频器到电动机之间增加交流电抗器主要是减少变频器输出在能量传输过程中线路产生电磁辐射，影响其它设备正常工作。
DELAVAL PP046 JZ PUMP SEAL KIT D585254
ANCHOR FLUID POWER W59-32-32-SS 4-BOLT STAINLESS FLANGE D586913
FLOWSERVE JVBA2750Y33 2/BRZ UNITIZED BEARING GARD ASSEMBLY D584351
POWERFLOW 10-01-1297 BRASS BABBITT BEARING HOUSING D526870
BINKS 6-197 AGITATOR AIR MOTOR REPAIR KIT D548491
ANDERSON GREENWOOD M251VIS-44F BLOCK BLEED GAUGE MANIFOLD VALVE D533416
CONBRACO 78-714-01 APOLLO MOUNTING KIT D579590
FLOWSERVE JVBAM135Y33 BRONZE BEARING GARD ASSEMBLY D582732
JOHN CRANE A3732500012682 37FS/37FSB CARBON SPLIT JOINT PUMP D583365
BRENNAN N2403-06-06-SS HYDRAULIC FITTING 3/8IN NPT D581641
INGERSOLL RAND 38006516 SOLENOID VALVE COIL 110V-AC D585736
LEHIGH K40F RPK-81 MIRACALUBE PNEUMATIC CYLINDER REPAIR KIT D590489
FLOWSERVE 3R30263DB STAINLESS PUMP SHAFT SLEEVE BXQ2125 D594904
PRECISION 020053 TAPER SHANK BLACK OXIDE 53/64IN DRILL BIT D590778
WILKERSON X06-02-000 PNEUMATIC DESICCANT DRYER 1/4IN NPT D591517
PNEUMATIC PRODUCTS 1202284 SPARE PARTS KIT D592408
FLOWSERVE 3R22209DB STAINLESS PUMP SHAFT SLEEVE D588734
FLOWSERVE 3R24416DB STAINLESS PUMP SHAFT SLEEVE BXQ2125 D592659
TB WOODS N010-1026-I CLUTCH NLS SHOE TYPE A D595545
STERLING 923167W SUPPER WELD MX BAND SAW BLADE 158IN 35 8/5 D596647
PARKER L0071823CP SCHRADER BELLOWS SOLENOID VALVE REPAIR KIT D569112
STONEL INF-A-MD2V10A 250VAC K-TORK VALVE POSITIONER MONITOR INDICATOR D574548
REXNORD 210957 THOMAS DPK AMR 312 HHS STAINLESS COUPLING DISC PACK D560605
JOHN CRANE 812255-50N3-RPR CARTRIDGE SPLIT PUMP SEAL TYPE 3710 D530667
KEYSTONE 79U-003U-A080-A00 PNEUMATIC VALVE ACTUATOR D557262
FOXBORO B0130UB FEEDBACK ASSEMBLY D535627
ALLEN-SHERMAN-HOFF R802326 TYPE E VALVE REPAIR KIT D560441
MUNTERS 85367-01 STAINLESS CONTACTOR SUPPORT SHAFT 5/8X18-1/4IN D595030
ATWOOD & MORRILL 335472045016000 STAINLESS DISC ARM 1-3/4IN BORE D595022
CRANE 317181 XOMOX TUFLINE 16IN BUTTERFLY VALVE SEAT D595127
SPIRALTRAC FI4375LS5625 5STFI4375LS PUMP THROAT BUSHING D595273
FLOWSERVE 3R4836LI-B STAINLESS B/BELL ASSEMBLY BXQ2875 D595665
VICKERS CP03 BA 000 BOTTOM FARREL S ROLL HYDRAULIC PRESSURE REGULATOR D596158
DURAMETALLIC KESA1250333 DURASEAL STELLITE STAINLESS PUMP SEAL D596407
DURAMETALLIC C03V1250NAA DURASEAL PUMP BUNA O-RING BRONZE INSERT D596406
FLOWSERVE 6002318-008 VALTEK VALVE ACTUATOR 150PSI D596593
DRESSER LB-5084-001 PUMP SEAL RING D596715
EL-O-MATIC SAK-DA 15 LI 904.00.140 STROKE ADJUSTMENT KIT D596931
HANSEN VPIF VALVE POSITION INDICATOR D596867
5-VANE 6-1/4IN OD 1-1/4IN ID STEEL PUMP IMPELLER D597071
6-1/2IN STEEL PUMP IMPELLER 6VANE 1-1/4IN BORE D597313
BOX OF 30 EL-O-MATIC VALVE ACTUATOR MOUNTING PLATE D597182
EL-O-MATIC SAK-DA 15 LI 904.00.140 STROKE ADJUSTMENT KIT D596953
NELES JAMESBURY 366044 VALVE ACTUATOR LINKAGE MOUNTING KIT D597882
HAYWARD 7IN PVC BASKET STRAINER COVER D598048
FLOWSERVE A-275S12TDX3 PUMP SHAFT SLEEVE NUT D598529
FLOWSERVE 1227847J BASIC PUMP SEAL D598977
WESTLOCK 6020 ACCUTRACK DUAL DISPLAY VALVE POSITION MOINTOR D599167
VELAN SKSB-F05-SSE SB 150/300 1IN BALL VALVE SEAL KIT D598814
CHESTERTON 221 042630 SPARE PART KIT SIZE 15 1.875IN SHAFT D599351
LINCOLN 81713A CENTRO-MATIC SL-1 150-3500PSI GREASE INJECTOR D598917
FLOWSERVE 135364-BASE STAINLESS PUMP DURA SEAL 1-3/4IN D599684
TLV T8N SIZE 15A SIGHT GLASS W/ FLOW INDICATING BALL 1/2IN NPT D599466
FLOWSERVE 126572 STAINLESS PUMP DURA SEAL D599689
CHESTERTON 682269 442 GEMINI SPLIT SEAL SPARE KIT SIZE-14 1.750IN D599738
FLOWSERVE 425602 STAINLESS PUMP SEAL RO 1375 D599701
RUCKER FLUID POWER NK81EA00-KC0KL2 VALVE MANIFOLD D599609
UNITORQ M48 K55 90 M-SERIES PNEUMATIC VALVE ACTUATOR D599869
UNITORQ M-21 K2/2 DLS PNEUMATIC VALVE ACTUATOR 150PSI D600031
VELAN SB 150/300 4IN 6IN BALL VALVE SEAL KIT D600237
FALK SH4107J 0769058 SEAL HOUSING D594517
METSO RKW-358XZ JAMESBURY BUTTERFLY VALVE REPAIR KIT D553840
POSI-FLATE RPB TORK-MATE PNEUMATIC VALVE ACTUATOR D547292
METSO RKP-273 JAMESBURY VALVE ACTUATOR REPAIR KIT D555020
METSO LK-508 JAMESBURY VALVE LINKAGE KIT D555009
FISHER 15A6504X052 SEAT RING D567896
STONEL INF-A-MD2V K-TORK VALVE POSITIONER MONITOR INDICATOR D574544
AUR-O-MET P58665 6-1/8IN OD 1/2IN BORE 6-VANE BRONZE PUMP IMPELLER D574360
WATTS 60 BFP-RK 0881484 RELIEF VALVE SERVICE PARTS KIT 4/6IN D579464
ROSEMOUNT C306101126-0000 INSTRUMENT MANIFOLD D586406
WATTS 0881626 NO.009 KIT 146 BFP-RK RUBBER PARTS KIT 1-1/4 1-1/2 2IN D580168
WATTS 0878624 89 BFP-RK PLASTIC SEAT KIT NO 709/909 1-1/2IN-2IN D580173
FALK 0706391 8F GRID COUPLING D583077
FLOWSERVE 3R19272DB STAINLESS PUMP SHAFT SLEEVE D583753
BWIP 155733NU-G BW SEALS STAINLESS PUMP SEAL D584057
BWIP 3R10574PO BW SEALS STAINLESS PUMP SEAL D583843
FLOWSERVE 3R38033DB STAINLESS PUMP SHAFT SLEEVE D584200
FLOWSERVE SNA115S06 FCW PNEUMATIC VALVE ACTUATOR D584705
PARKER 200391 SOLENOID VALVE PISTON KIT A4A/S4A 2-1/2 IN D577696
MILLER 051-KR015-138 HYDRAULIC ROD KIT WITH GLAND 1-3/8IN D585509
TB WOODS N010-1033 CLUTCH NLS SHOE TYPE A D595550
FLOWSERVE BXRH1500GXCQ BASIC PUMP SEAL D594917
PNEUMATIC PRODUCTS 1200448 REPAIR KIT D590322
SULZER 209 2200236 PUMP CARBON BUSHING D594762
ASCO 10-156-5A RED-HAT SWITCH COIL D586990
AIMCO 145-350-2 DRIVER ANVIL D591734
FLOWSERVE 3R1033FJ F/ANTI COKE BXRH3375 D591719
KUBOTA CKS-06-9.5 TORKDUCER NUTRUNNER HEAD 3/8IN DRIVE D591863
8IN BRASS PUMP IMPELLER 6VANE 1-1/8IN BORE D592032
EAGLEBURGMANN MG1/25-G60 019678003 ELASTOMER BELLOWS PUMP SEAL D591596
ATLAS COPCO 4250-1720-91 NUTRUNNER INERTIA BODY D591459
ASCO 069654 RED-HAT SOLENOID VALVE KIT D588219
GOYEN K10200 CA/RCA102MM DIAPHRAGM KIT D592495
FLOWSERVE 3R28043DB STAINLESS PUMP SHAFT SLEEVE REV A D588731
EL-O-MATIC DA 3.5 PNEUMATIC ACTUATOR 120PSI D592636
WT TASOWHEEL OY TIKKAKOSKI JETMATIC ACTUATOR D593298
ASCO 67177-4 10-417-4 RED-HAT SWITCH COIL KIT 208-240V D588331
ASCO 035206-001-D RED-HAT 120V-DC SOLENOID VALVE COIL D588081
FLOWSERVE 3R23695DB PUMP SLEEVE BXQ1875 STAINLESS D593674
DURAMETALLIC JVBA1500B33 PUMP SEAL BEARING GUARD ASSEMBLY BRONZE D593399
FLOWSERVE 3R33115DB STAINLESS PUMP SEAL D589868
FLOWSERVE BXRH2750GXCX BW SEALS BX SERIES STAINLESS BASIC PUMP SEAL D589882
BECK N BORE SPUR GEAR D594436
CATERPILLAR CAT 129423-1 SOLAR OIL AIR SEAL SPACER D594454
STERLING 923167W SUPER WELD MX BAND SAW BLADE 158IN 35 8/5 D596646
MILTON ROY 34626 METERING PUMP TUBING CONNECTION KIT D534204
REXNORD 7300936 E120 US BOLT KIT COUPLING REPLACEMENT PART D558997
JOHNSON CONTROLS STT17A-610R SEAT REPAIR KIT D552908
JOHN CRANE 812255-50N3-RPR CARTRIDGE SPLIT SEAL REPAIR KIT TYPE 3710 D532261
MASONEILAN DRESSER 35-35212 ACTUATOR D559884
INGERSOLL RAND 38328167 ATOMUFFLER SIZE 15 PNEUMATIC MUFFLER D585830
CHANT ENGINEERING C-7321-07 ADAPTER PLATE D568056
FRISTAM 50209380 PUMP SEAL KIT D573411
CHESTERTON 221 PUMP SEAL 4-1/2IN D595755
FLOWSERVE 0875S8GX1-K PUMP SHAFT SLEEVE KIT D596437
3-1/2IN ID STAINLESS VALVE ACTUATOR MOUNTING BRACKET D597534
ANCHOR PACKING 814 PUMP PACKING CARBON YARN 9/16IN 5LB D599432
ATRA-FLEX A4 ORANGE FLEXIBLE COUPLING INSERT D599703
FISHER ROSEMOUNT 1A97803G02 8X14 POSITIONER W/AIR LOCK PARTS KIT D553249
ANDERSON GREENWOOD M4APHIS-AM DIFFERENTIAL PRESSURE MANIFOLD D554227
DODGE 132205 6 TO 12 CIRCULATING OIL GROMMET KIT D559920
GOULDS 54632 STAINLESS PUMP IMPELLER 6-VANE 10 IN OD D559909
ANDERSON GREENWOOD M4APHIS-AM DIFFERENTIAL PRESSURE MANIFOLD D554227
DODGE 132205 6 TO 12 CIRCULATING OIL GROMMET KIT D559920
GOULDS 54632 STAINLESS PUMP IMPELLER 6-VANE 10 IN OD D559909
DIAMOND POWER R802326 A-S-H TYPE E VALVE REPAIR KIT D560438
50331-1 5-VANE 6-7/8 IN OD BRASS PUMP IMPELLER D576375
PGI M750CCT THREE VALVE INSTRUMENT MANIFOLD D581328
FLOWSERVE 362D7AX3 WEAR RING D586058
JAMESBURY ST-200B 150PSI PNEUMATIC VALVE ACTUATOR D544477
KOP-FLEX 1964097 153-KD-HTDP COUPLING DISC PACK D528706
SPENCER TURBINE 12-VANE 19IN OD ALUMINUM BLOWER FAN WHEEL D532630
JOHN CRANE FSP9048-1 BF5010 2-3/4 IN TYPE 1 PUMP SEAL ASSEMBLY D542093
NELES JAMESBURY EU-25-08-M 24V-DC ACTUATOR D567629
REXNORD REX2040/2042 SLIP FIT CONNECTING LINK D572462
PNEUMATIC PRODUCTS 1198069 VALVE REPAIR KIT D568963
NELES JAMESBURY NK 6203/U PNEUMATIC POSITIONER D569710
ALFA LAVAL 9611926584 VALVE SEAL SERVICE REPAIR KIT D574233
IN SHAFT MECHANICAL PUMP SEAL KIT D574511
ASHCROFT 310 DIAPHRAGM SEAL D575031
PNEUMATIC PRODUCTS 1200453 PURGE CHECK VALVE REPAIR KIT 2-3IN D590314
WESTLOCK 1040DBY2A2M0200 ACCUTRAK ROTARY POSITION MONITOR D591427
GOYEN K10200 VALVE DIAPHRAGM REPAIR KIT D592710
WORCESTER CONTROLS A34N SERIES 34 PNEUMATIC VALVE ACTUATOR D594484
5-0213-B32A 4IN DEMCO NEC TO ELOMATIC EAN 200 SSMK MOUNTING KIT D597227
GARLOCK 41606-7064 PACKMASTER #6 GRAPHITE PACKING 1IN 10LB D597853
GOULDS R198-MKS7 PUMP MAINTENANCE REPAIR KIT D600132
HONEYWELL 1265-3008 CHEMCASSETTE SPM FLEX CC HYDRAZINE TAPE D552275
THERMO ELECTRON 61-0220 GAS DETECTOR REPLACEMENT SENSOR D543138
RIKEN KEIKI CO ES-03 GAS DETECTOR REPLACEMENT SENSOR D543144
RIKEN KEIKI 65-2033RK ES-87A HYDROGEN SULFIDE REPLACEMENT SENSOR D543147
RIKEN KEIKI ES-037A HYDROGEN SULFIDE REPLACEMENT SENSOR D543153
HW-6259A REPLACEMENT SENSOR D543155
ASCO 164065 RED-HAT II SOLENOID VALVE REPAIR KIT D563741
VELAN 7555-014-063 STEEL VALVE STEM D552481
WORCESTER CONTROLS 10E39NWD SERIES 39 PNEUMATIC VALVE ACTUATOR D557367
SEPCO RAA0026HDN-AAAX-00 MECHANICAL PUMP SEAL TYPE HDN 1-5/8 IN D533974
SEPCO RAA0030SRS-AABX-00 ROTARY MECHANICAL PUMP SEAL SRS 1-7/8 IN D533982
HONEYWELL 31117481 MEREDIAN ANALYZER ELECTRODE D564159
ASCO 302723 RED HAT SOLENOID VALVE REPAIR KIT D564046
PACK OF 4 SKF FRB 10.2/200 BEARING STABILIZING RING D561112
FISHER 1J2053X0012 STEEL VALVE SEAT RING UNIT D556374
HAYWARD C45 SR-3 IMP COMPACT PNEUMATIC VALVE ACTUATOR D543516
PPC PP-8840-09 1200S MECHANICAL PUMP SEAL REPAIR KIT D542895
