Pumps, Compressors & Pump Skids

1

Low Flow & Dry Running Protection

Thermal dispersion and vane flow switches stop a pump before it runs dry or below its minimum flow, and confirm seal flush and cooling water flow.

FLT93 Thermal Dispersion SwitchFCI’s FLT93 Series are the most popularly installed heavy duty thermal dispersion flow and level switches in the world. The reasons are simple; FLT93s were developed from more than 40 years of flow and level switch engineering and…

Dwyer Series TDFS2 Thermal Dispersion Flow Switch (Non-Mechanical, Low Pressure Drop, Large Pipes)Measure Flow Above or Below User Set Flow Rate; Normally-Open & Normally-Closed NPN Outputs; LED Indication

Dwyer Series-V4 Flotect Flow Switches: Weatherproof, Explosion-Proof, Low Flow ProtectionDetects Low Flow in Hazardous Areas; Weather- & Explosion-Proof

Dwyer Series V6 Flotect Mini size Flow Switch for 1/2" to 2" PipesMonitors Liquid, Gas & Air Flow; Weather Proof & Explosion Proof

Dwyer Series FS2 Vane Flow Switch for Boilers & Heaters, Adjustable 1-8 in PipesVane Flow Switch for Boilers/Heaters; Reliable Low‑Flow Trip

2

Pump Flow Measurement

Clamp-on ultrasonic, insertion magnetic, paddlewheel and energy meters measure pump output, and an elbow flow conditioner keeps the reading accurate close to bends. Clamp-on meters fit outside the pipe, so they can go on a running pump without a shutdown, and the portable version checks pump performance in the field.

Fixed MinisonicTechnology Transit time ultrasonic flowmeter Signal treatment Analogic + ESC

Uf821 Ultrasonic Fixed FlowmeterHigh performing Adaptive Reliable Competitive Additional materials

Portable Ultrasonic Flow MetersUltrasonic transit time Accuracy Repeatability Linearity Temporal resolution Time between

Dwyer Series IEF Insertion Electromagnetic Flow TransmitterAccurate & Reliable Fluid Velocity Measurement; Flow 0-20 ft/s (0-6 m/s); Current, Voltage, Pulse Outputs; Alarms; Optional BACnet & Modbus

Dwyer Series-PFT Paddlewheel Flowmeters for Liquid Monitoring, Brass/316 SS, 4-20 mA OutputPaddlewheel Flowmeter for Liquids; IP67, Up to 25 ft/s

Dwyer IEFB Insertion Thermal Energy Meter; Adj. 4"-36" PipesCurrent-Voltage-Pulse Outputs, Alarms; Optional BACnet & Modbus; 10', 20', 50' Sensor Leads

VEL Flow ConditionerThe VORTAB VEL 90° Elbow flow conditioner provides a low pressure loss solution to flow profile irregularities caused by elbows and other disruptions that commonly occur upstream of that elbow in piping and duct runs. Only 3 pipe…

3

Suction & Discharge Pressure

Pressure switches shut a pump down on low discharge pressure (for example when an unloading tank runs empty) and protect compressors, and transmitters send suction and discharge pressure to the control system to catch dry running and blockages early. Differential pressure switches protect gas compressors at start-up.

Big HermetThe SOR hermetically sealed, Big Hermet is designed for mounting in a panel or on the wall when easy access is critical. The pressure sensing assembly of the Big Hermet explosion proof sealed pressure switch is identical to a…

Mini HermetATEX, UL/CSA, GOST, INMETRO, RTN, SIL; Snap Switch: ATEX, TestSafe (SAA), UL/CSA

Pressure and Vacuum SwitchesSOR® Pressure Switches are rugged, field-mounted instruments. The pressure sensing element of the SOR pressure switch is a force-balance, piston-actuated assembly. The sensing element is sealed by a flexible diaphragm and a static…

Adjustable Dead BandThe SOR V3 adjustable dead band, explosion proof pressure switch is designed for use in hazardous locations where a wide, adjustable dead band between set points is required. Ideal for pump control and air compressors, the dead band…

800 Series Smart Pressure TransmitterThe 815DT smart differential pressure transmitter is a rugged, compact, light weight, loop powered instrument that is ideally suited for hazardous locations and hostile environments where space is limited. The 815DT offers many industry…

1800 Series Differential Pressure / Pressure TransmitterThe 1800 Series Differential Pressure Transmitter model DMP305X-DST-S is well suited for intrinsically safe applications or conventional transmitter installations where a compact footprint is impractical.

Dual Opposed DiaphragmThis versatile opposed piston type differential pressure switch from SOR is essentially two static o-ring type pressure sensors at opposite ends of a common piston shaft. The housing is explosion proof and the switching elements are…

Dwyer Series-3200G Explosion-Proof Pressure Transmitter, HART®, FM Approved, 100:1 RangeExplosion‑Proof Pressure Transmitter; ±0.075% FS High Accuracy

Omega PX880 Industrial, Intrinsically Safe Pressure TransmittersPX880\tIndustrial Pressure Transmitter; ±0.2% Accuracy; 4-20 mA Output; Welded 316 SS; FM & CSA Hazardous Location Approved"

Dwyer 626/628 SS316L Industrial Pressure TransmittersMonitors fluids & air; 626 +/-0.25% / 628 +/-1% accuracy; 4-20mA or VDC output; PSI, BAR, PSIA ranges

Omega Series PX309 General Purpose Stainless Steel Pressure TransducersAccuracies from +/- 0.10% to +/- 0.25% Best Fit Straight Line; 4-20mA or Voltage Output; PSI, BAR, PSIA, Vacuum, Compound Ranges

Omega Series PX409 High Accuracy Pressure TransducersAccuracy +/- 0.08% or 0.05% Best Fit Straight Line; 4-20mA or Voltage Output; PSIG, BAR, PSIA, Vacuum, Compound, Sealed Gage Ranges

Dwyer Series EDA Electronic Pressure Control, Weatherproof, Adjustable SPDT, LED, Backlit DisplayWeatherproof Electronic Pressure Controller; Adjustable SPDT & LED Display

Dwyer Series-CXA Water Pump Pressure Switch, Easy Set Point, 1/4 in NPT, for WellsWater Pump Pressure Switch; Tool‑Free Setpoint, ¼" NPT

Dwyer Series-A1F OEM Weatherproof Pressure Switch, 316 SS, 15 A for Pumps & MotorsWeatherproof Pressure Switch; 316 SS, 15 A Contacts

Dwyer Series-A6 Durable Pressure Switches – Polyimide Diaphragm – 1/4 in NPT MaleDurable Pressure Switch; Polyimide Diaphragm, ¼" NPT

Dwyer Series-DA Bourdon Tube Pressure Switches with External Adjustments for HVAC & PumpsBourdon Tube Pressure Switch; Field‑Adjustable for HVAC & Pumps

4

Filter & Strainer Differential Pressure

Differential pressure switches and transmitters alarm when suction strainers and compressor filters start to block.

Dwyer 1950G Explosion-Proof Differential Pressure SwitchOne SPDT Relay; 1/8" FNPT; Weather Proof; Dry Gases

Dwyer Series 1950 Explosion-Proof Differential Pressure SwitchSPDT 1C Relay; 1/8" NPT; Air/Non-Corrosive Dry Gases

Dwyer Series-3100D Smart Differential Pressure Transmitter, HART®, Hazardous AreaSmart Differential Pressure Transmitter; HART®, Hazardous Area Rated

5

Local Pressure Gauges

Liquid-filled process gauges show suction and discharge pressure at the machine and withstand pulsation and vibration.

Series-UGY Process Pressure GaugesProcess Pressure Gauge; 4.5" Dial; ±0.5% Accuracy; Liquid-Filled; Resists Vibration, Pulsation & Shock

PGH Industrial Pressure Gauges with Temperature CompensationHeavy-Duty Pressure Gauge; 4.5" or 6" Dial; ±0.5% Accuracy; 316 SS Wetted Parts; Temperature Compensated

Weiss LF442Z Liquid Filled Pressure Gauge, Zytel Nylon Case4″ 316 SS Gauge; Vacuum/compound to 10 000 psi, 1 % Grade 1A accuracy.

Miljoco Series PSF4098LY 4.5" Stainless Steel Silicone Filled Industrial Pressure Gauge4″ liquid‑filled stainless ammonia gauge; -30–150 psi range; hermetic

Miljoco Series P4598L 4.5" Contractor's Bourdon Tube Pressure Gauge (Lead-Free Wetted Parts)Stainless Steel Case; Many Pressure Ranges; Accuracy +/- 1% FS, ASME B40.1 Grade 1A; NSF & ANSI Certified

Weiss NF402 Series 4" Industrial Gauge with 304 SS Stainless Steel Case4″ stainless industrial gauge; liquid filled; 0‑1000 psi; 1 % accuracy

6

Vibration

Vibration switches warn of worn bearings, misalignment or imbalance before a pump fails.

Dwyer Series-VBS Compact Vibration Switch for RMS Monitoring, Adjustable Set Point & DelayCompact vibration switch; adjustable RMS velocity & delay; 4‑20 mA output

7

Seal Pot Level & Temperature

Ultrasonic level switches watch the barrier fluid level in mechanical seal pots, and temperature transmitters protect bearings and the pumped fluid from overheating.