KV, KVS Series

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Product Bar End

KV, KVS Series

Target Flow Meters KV, KVS Series

Target Flow Meters


The Niagara NFP Series ForceMeter™ is an insertion type flow meter that can measure water or steam. It utilizes a hermetically sealed strain-gage bridge circuit to convert flow force to a two-wire 4-20 mA output signal that is proportional to flow rate. All wetted parts are 316L stainless steel and the meter mounts to 4" and larger pipes using a 2" or 4" ANSI 150# or 300# raised face flange. The NFP Series comes pre-calibrated and configured based on the application parameters provided at the time of order; the meter only needs to be zeroed to adjust for installation orientation. Many different models and configuration options are available, such as retractable insertion types, inline models, and hazardous approval.


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  • Quick response time for flow change display in less than 1 second, can be dampened
  • Rugged design includes no moving parts to wear out
  • All welded sensor construction for durability
  • Hermetically sealed to withstand challenging environmental conditions
  • Maintenance-free keeps cost of ownership down
  • Integral display for local indication of flow and totalization

Supply Voltage:12-42 VDC

Maximum Output Impedance:RL = (Vsupply - 12) * 43.33

Output Signal:2-wire, 4-20 mA, linear to flow

Wiring Terminations:Screw terminals inside housing

Conduit Connection:3/4" FNPT

Configuration:Factory pre-configuration required to assure application/product match: specify pipe size and material/schedule, fluid/gas type, operating pressure and temperatures, and minimum/maximum flow rates

Accuracy:± .05% for pipe sizes up to 8″, 1% to 2% for pipe sizes over 8″

Repeatability:± 0.15% of flow rate

Response Time:.002 to 0.1 seconds

Display:2-line alphanumeric with bar graph

Operating Temperature:-4° to 170℉ (-20° to 75℃)

Flow Range:19.6 gpm (4″ pipe) to 98,000 gpm (60″ pipe)

Velocity Range:Liquid flow: 1.5 fps (0.5 mps) minimum, 32 fps (9 mps) maximum

Pipe Size Range:4″ to 60″ (100 to 1500 cm)

Installation:Install in straight pipe section with a minimum distance of 10 pipe diameters upstream and 5 pipe diameters downstream to any bend, obstruction or transition

Mounting:ANSI flanges standard, other options available

Media Compatibility:Liquid, gas or steam

Media Temperature Range:-65° to 425℉ (-54° to 218℃), other ranges special order

Maximum Pressure:>1000 psi (69 bar) for primary sensing elements; piping connections per applicable ANSI specs

Materials Of Construction:Wetted parts: 304 and 316 stainless steel (or cast equivalent), Teflon® seals;

 :Electronics housing: Polyester coated Aluminum

Enclosure Rating:NEMA 4X

Dimensions:Height 10.8″ (27.3 cm) from mounting flange to top of transmitter; insertion length depends on pipe size specified, target locates in center of pipe

Weight:9 lb (4.1 kg) maximum

Warranty:2 years