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D & D Instruments
Flexible Shafts, Ratio Adapters, Right Angle Adapters, Flexible Drive Shafts, Tachometers & Speedometers. Automotive & Industrial Gauges: Pressure, Temperature, Vacuum, Voltage, Amperage & Custom (Service Provided From Concept To Finished Product). Sensors & Transducers: Proximity, Hall Effect, Self-Generation, Variable Reluctance, Reed Switch. Electric & Pneumatic Motors, Controls & Solenoids Primarily Used In Wiper Systems. Lubrication Systems, Supplies & Equipment. Rocker Switches For All Applications & Operations. Tachographs & On Board Computer Systems. Lines Include: Stewart-Warner, Datcon, VDO, Marshalltown, S.S. White Technologies, Breeze-Eastern/Masstech, Sahner, Motorola/Prestolite, Sprague Devices/SWF, Pollak, Synchro-Start, Rockwell

D & F Distributors, Inc.
Distributor of pumps, meters, parts, accessories, pneumatic products. System design & fabrications, pump & meter repair service

D & W Systems Sales, Inc.
Rep. of control systems.

Daico Water Management
Manufacturer & worldwide distributor of complete line of water treatment equipment including reverse osmosis system, mineral tank system, ozone system, carbon system & electrodeionization. Specialize in the engineering of industrial machinery for any water treatment problem. Services include water treatment & chemical blending for a variety of applications. Products include chemical analyzers, water analyzers, filter cartridges, carbon filters, flow controls, level controls, cooling tower, demineralizing equipment, water industrial filters, membranes filters, conductivity meters, flowmeters, turbidity meters, ozone equipment, pumping systems, centrifugal pumps, chemical pumps, diaphram pumps, high pressure pumps, magnetic pumps, submersible pumps, chemical tanks, fiberglass tanks, pressure tanks, storage tanks, automatic valves, ball valves, stainless valves, filter vessels, pressure vessels, waste water neutralization & waste water treatment equipment.

Dalec Electronics
Distributor Of Controls

Dallas Meter-Tek Supply
Distributor of electric controls, switches, transformers, counters, meters & timers.

Daniel Flow Products, Inc., Flow Measurement Products Div.
Measurement Devices

Daniel Measurement & Control
Manufacturer of measuring equip. & supplies.

Dantec Measurment Technology, Inc.
Manufacturer Of Anemometers, Transducers; Vibration Measurement & Control Service

Davco Manufacturing Corp.
Manufacturer Of Diesel Fuel/Water Separators

Davco Technology, LLC
Manufacturer of gages, filters, control systems & automation equip.

Davies Supply Co., The
Stocking distributor of 1/8" through 20" welded & seamless, standard SCH40 & ex-heavy SCH80 black & galvanized pipe, pipe fabrications, valves, fittings, flanges, plumbing & heating supplies, & compressed air systems. Aluminum & stainless steel pipe & tubing, PVC & CPVC pipe, Poly-Flo® tubing, brass pipe, & copper tubing. Pipe fabricating service, including cutting, threading, grooving, & fitting make-ons. Stocking distributor of Ridgid® tools, hangers, struts, fasteners, tapes, adhesives, & gaskets.

Davis / Inotek; Charlotte
Test, Measurement & Control Instrumentation, Anemometers, Manometers, Gages, Meters

Davis / Inotek; Chicago
Test, Measurement & Control Instrumentation, Anemometers, Manometers, Gages, Meters

Davis / Inotek; Dallas
Test, Measurement & Control Instrumentation, Anemometers, Manometers, Gages, Meters

Davis / Inotek; Houston
Test, Measurement & Control Instrumentation, Anemometers, Manometers, Gages, Meters

Davis / Inotek; Kansas City
Test, Measurement & Control Instrumentation, Anemometers, Manometers, Gages, Meters

Davis / Inotek; LA
Test, Measurement & Control Instrumentation, Anemometers, Manometers, Gages, Meters

Davis / Inotek; Philadelphia
Test, Measurement & Control Instrumentation, Anemometers, Manometers, Gages, Meters

Davis / Inotek; Pittsburgh
Test, Measurement & Control Instrumentation, Anemometers, Manometers, Gages, Meters

Davis / Inotek; Tulsa
Test, Measurement & Control Instrumentation, Anemometers, Manometers, Gages, Meters

Davis Controls Corp.
Distributor & Rep. Of FlowMeters, Valves, Actuators & Accessories

Davis Inotek Instruments LLC
Distributor; Rep.: Control Equipment & Components; Service: Calibrating, Repairing

Davis Instruments
Manufacturer & Distributor Of Measuring & Process Control Instruments

Dayco, Inc.
Worldwide manufacturer of industrial heating & processing equipment including process air heaters, combustion systems, control panels, gas piping trains & other combustion-related equipment. .Direct- & indirect-fired & recirculating air heaters. Make-up air heaters. Burners: air heater, furnace-type, tube firing & pressure radiant. Control systems: flame safety, burner temperature, flow control & measurement. Prepiped & prewired gas & oil safety trains. Custom-designed air heating systems. FM, NFPA, OSHA & IRI standards.

DC Hydraulics, Inc.
Distributor of hydraulic equip. & components.

Dearing Compressor & Pump Co.
Distributor of compressors, coolers, pumps, aftermarket replacement parts & accessories. Repair, rental, reconditioning & maintenance contracting service

Decagon Devices, Inc.
Manufacturer of agricultural equipment including water potential meter, ceptometers, porosity measurement meters for leaf & soil, data collection, instruments, drain gauges, tension measuring meters, infiltrometers, thermal sensors, & meters for measuring thermal properties. Applications include soil research, & plant research. Additional services include repair of instruments.

Delta Instrumentation
Rep. Of FlowMeters, Boiler Controls, Catalytic Converters

Delta M Corp.
Manufacturer Of Switches

Denver Instrument Co.
Manufacturer Of Precision, Analytical Instrumentation. Products Include Analytical & Top-Loading Balances, Portable Scales, Industrial High Capacity Scales, Research Grade Electrochemistry Meters, Portable PH Meters, Infrared Moisture Analyzers, Coulometric Titration Systems, PH, ISE & Conductivity Probes, & NIST-Traceable Mass Standards

Design West (A Design West Technologies Co.)
Assembly & Fabricating, Rapid Prototyping, Software Design & Development, Engineering Service

Deverell, R. W. Co.
Rep. Of Heat Exchangers, FlowMeters, Filters, Strainers, Silencers

Dietz, Henry G. Co., Inc.
Manufacturer of controls, switches.

Digalog Corp.
Manufacturer Of Aerospace Instrument & Control Systems

Digiflow Systems
Low flow liquid & gas electronic flowmeters covering ranges of 10 cc/day to 250 GPM+ & 0.05SCCM to 1500SLPM+ for a wide variety of end-use & OEM monitoring & control applications for commercial, industrial, & research requirements.

Dill Instruments, Inc.
Distributor Of FlowMeters

Diversified Air Systems
Distributor of compressors, new & used dryers & accessories. Repairing & reconditioning service

DK-LOK U.S.A.
Instrumentation Tube Fittings, Pipe Fittings, Teflon® Fittings, Weld Fittings, Ball Valves, Needle Valves, Check Valves, Globe Valves, Relief Valves, Gauge Root Valves, Bonnet Valves, Vent Protectors & Manifolds. Applications In High Temperature, Pressure & Purity Requirements. Industries Served Include: Petrochemical, Processing, OEM, Pulp & Paper, Semi-Conductor, Gas Systems, Pharmaceutical, Power Plant & Other Industries. Materials: Stainless Steel, Carbon Steel, Brass, Hastelloy-C, Monel® & Others In Standard Sizes & Configurations From 1/16th To 2" (38mm). ISO 9001 & ASME Systems. Type Approvals: DNV, GL, ABS, Lloyds Register & ABSA

Dometrics, Inc.
Distributor For 60 European Companies, Especially To Pulp & Paper, Textile, Steel Mills & Pharmaceuticals. Also, Distributor Of Metric Dimensioned Equipment To OEM's. Metric Replacement Parts Included: AC Motors, Air Cushions, Air Motors, Bellows, Blowers, Brakes & Clutches, Conduit Systems, Control Cabinets, Controls & Sirens, Couplings, DC Motors & Controls, Diaphragms: Rubber To Metal Bonded, Diaphragm Cylinders, Drives: Variable Speed, Electric Motors & Controls, Electrical Control Units, Electronic Controls, Electronic Instruments, Enclosures, Encoders, Fasop Fibre Optics, Flexible Couplings, Foreign Motors Rebuild & Rewind, Fuses, Gearboxes & Motors, Gearmotors

Don Johns
Manufacturer of electrical, electrohydraulic & pneumatic actuators, batching systems, & flow measurement systems.

Duff Co.
Distributor of plumbing, heating equipment, pumps, steam specialties & water treatment equipment. Products include actuators, filters chemicals, circulators, clamps, connectors, drains, heat exchangers, hose, hydrants, meters, nipples, pressure tanks, sinks, thermometers, valves, boosters, faucets, fittings, flanges, hangers, fasteners, wash fountains, brushes, transformers, threading, radiators, tubing, dispenser, gauges, base board heaters & boilers. Used for commercial, institutional, maintenance & engineering applications.

Durant Tool Co.
Manufacturer of coil handling & feeding equipment, uncoilers, unwinding machines & stands, rewinders, recoilers, straighteners, machine & process controls, pneumatic cutters, machine bases, servo roll feeders, stock lubricating, air & roll feeding, scrap cutting & cut-to-length machines for metal, plastic, vinyl, rubber, rubber hose, foam rubber. Other products include counters, perforating pins & punches, parts collector, index tables, stock oilers & coil cradles.

Durkin Equipment/Midwest Automation
Manufacturer of control & electrical panels & process skids. Sevices include instrument calibration, checkout & start-up, as well as, programming & application engineering & the fabrication of control panels & process skids.

Dwyer Instruments, Inc.
Pressure Gages; Low Differential Pressure Gages; Manometers; Air Filter Gages; Bourdon Tube, Bellows, Piston & Diaphragm Actuated Pressure Switches; Indicating Pressure Switches; Pressure Transmitters; Low Differential Pressure Transmitters; Flowmeters; Sight Flow Indicators; Flow Switches; Level Switches; Bulb & Capillary, Bi-Metal & Immersion Temperature Controls; Temperature Transmitters; Temperature Controllers; RTD, Thermocouple Sensors; Line Voltage Thermostats; Combustion Test Equipment; Pitot Tubes; Air Velocity Transmitters; Process Controllers; Ground/Continuity Controls; Valves: Globe & Butterfly; Control Valves: 2-Way & 3-Way Pneumatically & Electrically Actuated; Valve Positioners: Indicators, Switches, Transmitters

Dyna Med
Color separating, direct mailing, labeling, & commercial printers service

Dynalco Controls Corp.
Manufacturer Of General Purpose Relays

Dynasonics, Div. Of Racine Federated, Inc.
Manufacturer of ultrasonic flowmeters, partially filled pipe, portable or fixed position; doppler ultrasonic flowmeters, portable, fixed or insertion; insertion magnetic flowmeters, high accuracy, pipe size 4 in. & higher; groundwater, precision, batching, custom, liquid, water, sewage & sludge, transit time flow meter instrumentation; flow rate & magnetic flow alarms; probes; recorders; sensors; switches; testers; transducers; transmitters; rental.