N08001-4169-000-15

N08001-4169-000-15

N08001-4169-000-15

N08001-4169-000-15

DCS在控制上的大特点是依靠各种控制、运算模块的灵活组态，可实现多样化的控制策略以满足不同情况下的需要，使得在单元组合仪表实现起来相当繁琐与复杂的命题变得简单。随着企业提出的高柔性、益的要求，以经典控制理论为基础的控制方案已经不能适应，以多变量预测控制为代表的控制策略的提出和成功应用之后，过程控制受到了过程工业界的普遍关注。需要强调的是，广泛应用各种控制与优化技术是挖掘并提升DCS综合性能有效、直接、也是具价值的发展方向。

在实际过程控制系统中，基于PID控制技术的系统占80%以上，PID回路运用优劣在实现装置平稳、、运行中起到举足轻重的作用，各DCS厂商都以此作为抢占市场的有力竞争砝码，开发出各自的PID自整定软件。另外，根据DCS的控制功能，在基本的PID算法基础上，可以开发各种改进算法，以满足实际工业控制现场的各种需要，诸如带死区的PID控制、积分分离的PID控制、微分先行的PID控制、不完全微分的PID控制、具有逻辑选择功能的PID控制等等

VTW 2105 SMC SOLENOID VALVE 1/PIPE SIZE

VULCAN 3HR37 CARTRIDGE HEATER

VULCAN OS1208-150A STRIP HEATER

VW2BT305 TELEMECANIQUE CIRCUIT CONTROL BOARD 92287241

VWR VT-5 TEMPERATURE CONTROLLER

W.W. GRAINGER 2151M/H 36 HI TEMP IGN CABLE AUT SPK

WAC LIGHTING HR-D425-BN WAC 5" ADJUSTABLE RECESSED TRIM PERISCOPE WITH BULB

WAC Lighting LED-T24-5-WT, 5-Feet - InvisiLED

WAC Lighting LM2-CS48-BN LV Monorail Cable Ceiling Suspension 48-Inch

WAC Lighting LTK-765-BK Line Voltage Track Head

WAC LIGHTING QF-190X3-PT QUICK CONNECT FIXTURE w 3" EXTENSION PLATINUM FINISH

WAC Lighting WAC-LTG LM2-I-BN 2-CIRCUIT LV MONORAIL I CONNECTOR

WALCHEM 102582 CHEMICAL METERING PUMP REPAIR KIT

WALDRON POWERLIGN 3PL SLEEVE PL

Walker 896PCK-BLK Black Polycarbonate Cover for Power or Communication Floorbox

Walker Walkerduct S126B Floor Receptacle Outlet Wiremold 826B

Walker Wiremold 1126A-1 2" to 1" Adapter Walkerduct

WALKER WIREMOLD 437-7/8 ATTACHING RING ASSEMBLY 7/8" HIGH

Walker Wiremold 825CK-Brass Conversion Kit 2-1/To Opening

WALTHER 16A-6H RECEPTACLE TYPE 514

WALTHER 32A-7H PIN & SLEEVE PLUG TYPE 339 07 32 AMP 32A 480-500V

WALTHER 43706 FEMALE PLUG 32 AMP 32A-6H 380-415V

WALTHER TYPE 213 PLUG 16A-6h 230/400V

Walworth 2 Inch Threaded Brass Valve Model 57

WARD LEONARD 7001-7140-1CONTACTOR 40A 40 AMP 500VDC 110/120V COIL

Waren Valve 3/Stainless Steel Weld Ball Valve 1500 WOG

Warman B1041A05 Impeller

Warman B1127A05 Impeller

Warman C2041A05 Impeller

Warman CUZ4G01

Warman D046G01 Flange

Warman DL64041 A05 Impeller Shelf Wear 256056

Warman E046G01 Flange

WARMAN F024G01 Flange

Warman F044C23 Flange

WARMAN F048G01 Flange

WARNER 5400-3 50VA BRAKE & CLUTCH CONTROL missing knob

Warner Bernstein OT18-RT-AHQ3-0110-CL 7105-448-046

WARNER LINEAR LIMIT SWITCH MECHANICAL BRACKET , 9600-831-002

WARNER SM-024-0035-TG STEPPING MOTOR

WARREN 1/2” CHECK VALVE 200 CF8M

WARREN Railroad Spike Driver NO. 100 8LB

WARREN RUPP 050-039-35SANTOPRENE CHECK VALVE BALL

WARREN SIZE 2 GLOBE VALVE 2-150 CF8M

WARRICK CONTROLS 16VMA1A0 GEM SENSORS CONTROL RELAY w SOCKET BASE

WATER HEATER ELEMENT BOLT-IN 3500 W 240V / 2500 W 220V 0421, UCO2203524

WATERMAN HYDRAULICS 481-3 LINE FILTER 5000 PSI

WATERSAVER FAUCET CO. VALVE w HANDLE NIT

WATLOW 147E-1610-4000 TEMPERATURE CONTROLLER -125 to 425°F

WATLOW 60-07-06 DIGITAL TEMPERATURE INDICATOR

WATLOW 93BA-1KA0-00RG TEMPERATURE CONTROLLER

WATLOW 989A-20CD-JRRR CONTROLLER 989 SERIES

WATLOW CVCCKH00322192D TEMPERATURE CONTROLLER

WATLOW DIN-A-MITE DC1C-6524-K2S2 SOLID STATE POWER CONTROL

WATLOW KMFN0370D002A 120V 250W Heater  20mm x 370mm KMFN 0370 D002 A

Watlow SSR-240-50A-DC1 Solid State Relay

WATSCO B1-10S LINE TAP VALVE "SOLDER ON STYLE" for 5/8" O.D. TUBE

WATSCO B1-8S LINE TAP VALVE "SOLDER ON STYLE" for 1/O.D. TUBE

WATSON McDANIEL SERIES F-12 REDUCING VALVE 25-125# 15F

WATT STOPPER WI-277G IVORY PASSIVE INFRARED AUTOMATIC LIGHT SWITCH *FREE SHIP*

WATTEREDGE 10CX16 16" MCM FLEXIBLE ELECTRICAL CONNECTOR

WATTS BKF55B BOWL KIT

WATTS CSM 61T MFLOW MEASUREMENT VALVE THREADED 1-1/2"

WATTS CSM 61T MFLOW MEASUREMENT VALVE THREADED 2"

WATTS FLUIDAIR R20-06C REGULATOR

WATTS FLUIDAIR RK1190 REPAIR KIT

WATTS M150 RELIEF VALVE

WATTS PRESSURE REGULATOR with 0-160 GAUGE R11-03C/M3

WATTS R35-02CP REGULATOR

WATTS REGULATOR 1-1/BRASS THREADED BALL VALVE 600WOG THREADED TWO PIECE

WATTS REGULATOR 3/DIELECTRIC UNION

WATTS REGULATOR BRASS THREADED BALL VALVE 600WOG THREADED TWO PIECE

WATTS REGULATOR FBVS-3 2-1/BALL VALVE 125 WSP 400 WOG

WATTS SPENCE ADVANCE VALVE 41A-T0 SAFETY VALVE 1-1/4

WATTS T200203 1-1/VALVE with WATTS 263AP 1/PRESSURE REGULATOR

WATTS T207603 VALVE with WATTS 263AP 1/PRESSURE REGULATOR

WAUKESHA / SPX LL122876A0GUIDE BAR

WAUKESHA 2.5 2-1/HIGH PRESSURE SANITARY BOLTED TRI I CLAMP 660 PSI 344223

WAUKESHA 316L SANITARY TEE 1-1/STAINLESS STEEL ASME BPE-1997-SFF2

WAUKESHA PUMP STUB SHAFT x 1-1/8"

WAUKESHA TEE SANITARY 30STAINLESS STEEL , 137-385

WAUKESHA TEE SANITARY 30STAINLESS STEEL 7AI71030, 137-3986

WAUKESHA TEE SANITARY 30STAINLESS STEEL 7BI71030, 137-4021

WEATHERHEAD 1369X4xMALE ELBOW

WEATHERHEAD 1480X8X45° Brass Elbow DOT Air Brake Nylon Tube Male Fittings

WEATHERHEAD 1880x8x8 MALE CONNECTOR 45 DEG 1/TUBE SIZE

WEATHERHEAD 33806P108 3/8 x 1/2 MALE PIPE RIGID

WEATHERHEAD 4105X16 NUT 1"