flow meters

Reliable HVAC performance starts with proper flow balance. Whether you're commissioning a new hydronic installation or troubleshooting an existing system, the right flow control tools help verify flow rates, support efficient operation and keep systems running as designed. Blackhawk Supply has a wide selection of HVAC flow control valves for sale to help contractors optimize system performance. From verifying flow rates to advanced diagnostic testing, our collection includes the specialized tools professionals rely on to complete critical tasks.
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View Details Dwyer DTFW-1S-5W Range 0-5 GPM water | 1/4" npt | ss body | Blackhawk Supply
DTFW-1S-5W | Range 0-5 GPM water | 1 / 4" npt | ss body | Dwyer
Brand: Dwyer
SKU: DTFW-1S-5W
$1,366.99 each
View Details Milwaukee Valves 1184-112 Gate Valve Bronze 1-1/2 Inch Threaded Rising Stem Union Solid Wedge Disc/Stainless Steel Seat 300SWP/1000WOG | Blackhawk Supply
1184-112 | Gate Valve Bronze 1-1 / 2 Inch Threaded Rising Stem Union Solid Wedge Disc / Stainless Steel Seat 300SWP / 1000WOG | Milwaukee Valves
Brand: Milwaukee Valves
SKU: 1184-112
$508.50 each
View Details Dwyer VFB-53-EC Flowmeter | range 10-100 SCFH air. | Blackhawk Supply
VFB-53-EC | Flowmeter | range 10-100 SCFH air. | Dwyer
Brand: Dwyer
SKU: VFB-53-EC
$115.99 each
View Details Dwyer TE-O-3 PTFE orifice plate flowmeter | 12" line size | 8.400" bore | 0.7 Beta | water capacity: 320" d.p. W/C | 4930.86 GPM flow; air capacity: 12430 SCFM @ 14.7 psia | 21397 SCFM @ 20 psig | 41089.02 SCFM @ 100 psig; 10 lb. | Blackhawk Supply
TE-O-3 | PTFE orifice plate flowmeter | 12" line size | 8.400" bore | 0.7 Beta | water capacity: 320" d.p. W / C | 4930.86 GPM flow; air capacity: 12430 SCFM @ 14.7 psia | 21397 SCFM @ 20 psig | 41089.02 SCFM @ 100 psig; 10 lb. | Dwyer
Brand: Dwyer
SKU: TE-O-3
$2,352.99 each
View Details Dwyer VFCII-151 Flowmeter | range 2-20 LPM water. | Blackhawk Supply
VFCII-151 | Flowmeter | range 2-20 LPM water. | Dwyer
Brand: Dwyer
SKU: VFCII-151
$191.99 each
View Details Dwyer GFC-2101 Gas mass flow controller | range 0-10 mL/m. Specified flow range is for an equivalent flow of nitrogen at 70°F (21°C) @ 760 mm Hg | 1/4" compression fitting. | Blackhawk Supply
GFC-2101 | Gas mass flow controller | range 0-10 mL / m. Specified flow range is for an equivalent flow of nitrogen at 70°F (21°C) @ 760 mm Hg | 1 / 4" compression fitting. | Dwyer
Brand: Dwyer
SKU: GFC-2101
$3,752.99 each
View Details Dwyer TVA1113 All fluoropolymer flowmeter | 75 mm scale | 1/4" female NPT | flow rate 6.34 GPH (400 ml/min) water. | Blackhawk Supply
TVA1113 | All fluoropolymer flowmeter | 75 mm scale | 1 / 4" female NPT | flow rate 6.34 GPH (400 ml / min) water. | Dwyer
Brand: Dwyer
SKU: TVA1113
$1,569.99 each
View Details Dwyer WPTN-A-C-04 Multi-Jet plastic water meter with NSF Approval | 1" pipe size with 0.1 gallon pulse output | Blackhawk Supply
WPTN-A-C-04 | Multi-Jet plastic water meter with NSF Approval | 1" pipe size with 0.1 gallon pulse output | Dwyer
Brand: Dwyer
SKU: WPTN-A-C-04
$265.99 each
View Details Dwyer VA25429 Variable area glass flowmeter | glass float | flow rate 0.792 SCFH (374 ml/min) air | 0.087 GPH (5.5 ml/min) water. | Blackhawk Supply
VA25429 | Variable area glass flowmeter | glass float | flow rate 0.792 SCFH (374 ml / min) air | 0.087 GPH (5.5 ml / min) water. | Dwyer
Brand: Dwyer
SKU: VA25429
$1,136.99 each
View Details Dwyer MMF-100 Flowmeter | range 10-100 SCFH air. | Blackhawk Supply
MMF-100 | Flowmeter | range 10-100 SCFH air. | Dwyer
Brand: Dwyer
SKU: MMF-100
$44.99 each
View Details Dwyer RSF124V Rotatable scale flowmeter | max. flow rate 20 SCFM (575 SLPM) air | 4 GPM (15 LPM) water. | Blackhawk Supply
RSF124V | Rotatable scale flowmeter | max. flow rate 20 SCFM (575 SLPM) air | 4 GPM (15 LPM) water. | Dwyer
Brand: Dwyer
SKU: RSF124V
$2,243.99 each
View Details Dwyer OP-O-3 Orifice plate flowmeter | 12" line size | 8.400" bore | 0.70 Beta | water capacity: 320" d.p. W/C | 4930.86 GPM flow; air capacity: 200" d.p. W/C | 12430.00 SCFM @ 14.7 psia | 21397.00 SCFM @ 20 psig | 41089.02 SCFM @ 100 psig; 30 lb. | Blackhawk Supply
OP-O-3 | Orifice plate flowmeter | 12" line size | 8.400" bore | 0.70 Beta | water capacity: 320" d.p. W / C | 4930.86 GPM flow; air capacity: 200" d.p. W / C | 12430.00 SCFM @ 14.7 psia | 21397.00 SCFM @ 20 psig | 41089.02 SCFM @ 100 psig; 30 lb. | Dwyer
Brand: Dwyer
SKU: OP-O-3
$4,186.99 each
View Details Dwyer WPT-A-C-03-100 Multi-Jet plastic water meter | 3/4" x 1" pipe size with 100 gal pulse output. | Blackhawk Supply
WPT-A-C-03-100 | Multi-Jet plastic water meter | 3 / 4" x 1" pipe size with 100 gal pulse output. | Dwyer
Brand: Dwyer
SKU: WPT-A-C-03-100
$200.99 each
View Details Veris BGR-DR-G-RZ-R-S-AKWWCAKNXXTGRF Flow | Usonic | BTU | 2+" | 110-220 | 50'cbl | MB/BN | Blackhawk Supply
BGR-DR-G-RZ-R-S-AKWWCAKNXXTGRF | Flow | Usonic | BTU | 2+" | 110-220 | 50'cbl | MB / BN | Veris (OBSOLETE)
Brand: Veris
SKU: BGR-DR-G-RZ-R-S-AKWWCAKNXXTGRF
View Details
View Details Dwyer RMB-85D Flowmeter | range 10-100 GPH/0.8-6.2 LPM water. | Blackhawk Supply
RMB-85D | Flowmeter | range 10-100 GPH / 0.8-6.2 LPM water. | Dwyer
Brand: Dwyer
SKU: RMB-85D
$85.99 each
View Details Dwyer DR220582 Direct reading glass flowmeter | 316 SS float | flow rate 0.75 GPH water. | Blackhawk Supply
DR220582 | Direct reading glass flowmeter | 316 SS float | flow rate 0.75 GPH water. | Dwyer
Brand: Dwyer
SKU: DR220582
$1,194.99 each
View Details Veris BGR-M2-080-R1-A-RAFM-XXGF Flow | Mag | 8" | H-rubb | 30'RmtAmp | mA/F/Modbus | Blackhawk Supply
BGR-M2-080-R1-A-RAFM-XXGF | Flow | Mag | 8" | H-rubb | 30'RmtAmp | mA / F / Modbus | Veris (OBSOLETE)
Brand: Veris
SKU: BGR-M2-080-R1-A-RAFM-XXGF
View Details
View Details Milwaukee Valves 1184-114 Gate Valve Bronze 1-1/4 Inch Threaded Rising Stem Union Solid Wedge Disc/Stainless Steel Seat 300SWP/1000WOG | Blackhawk Supply
1184-114 | Gate Valve Bronze 1-1 / 4 Inch Threaded Rising Stem Union Solid Wedge Disc / Stainless Steel Seat 300SWP / 1000WOG | Milwaukee Valves
Brand: Milwaukee Valves
SKU: 1184-114
$433.49 each
View Details Dwyer PFT-IDN-B111-S Series PFT Insertion Paddle Wheel Flow Transmitter Pulse output, brass body, 1-1/2" NPT connection, FKM seals, tungsten-carbide shaft, PTFE bearing | Blackhawk Supply
PFT-IDN-B111-S | Series PFT Insertion Paddle Wheel Flow Transmitter Pulse output, brass body, 1-1 / 2" NPT connection, FKM seals, tungsten-carbide shaft, PTFE bearing | Dwyer
Brand: Dwyer
SKU: PFT-IDN-B111-S
$691.99 each
View Details Taco 975-424RP CONDUIT CONNECT,STEEL,VIRIDIAN,LRG VR25H, VR30M, VR30H / THREAD ADAPTER (M20 x ½ -14 NPSM) VENDOR P/N 979528322TACO | Blackhawk Supply
975-424RP | CONDUIT CONNECT, STEEL, VIRIDIAN, LRG VR25H, VR30M, VR30H / THREAD ADAPTER (M20 x ½ -14 NPSM) VENDOR P / N 979528322TACO | Taco
Brand: Taco
SKU: 975-424RP
$368.36 each
View Details Dwyer VFA-32-BV Flowmeter | range 6-50 cc/min water. | Blackhawk Supply
VFA-32-BV | Flowmeter | range 6-50 cc / min water. | Dwyer
Brand: Dwyer
SKU: VFA-32-BV
$72.99 each
View Details Dwyer TFP-GV12 Gas turbine flow meter | range 42 to 210 SCFH (20 to 100 LPM) | 1/2" OD connection. | Blackhawk Supply
TFP-GV12 | Gas turbine flow meter | range 42 to 210 SCFH (20 to 100 LPM) | 1 / 2" OD connection. | Dwyer
Brand: Dwyer
SKU: TFP-GV12
$1,217.99 each
View Details Dwyer MTF-1131 150 mm frame | isolated pattern | 3 tube capacity | aluminum wetted parts. | Blackhawk Supply
MTF-1131 | 150 mm frame | isolated pattern | 3 tube capacity | aluminum wetted parts. | Dwyer
Brand: Dwyer
SKU: MTF-1131
$739.99 each
View Details Dwyer DR120192 Direct reading glass flowmeter | 316 SS float | flow rate 4.4 GPH water. | Blackhawk Supply
DR120192 | Direct reading glass flowmeter | 316 SS float | flow rate 4.4 GPH water. | Dwyer
Brand: Dwyer
SKU: DR120192
$990.99 each
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