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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Dwyer RMA-23-SSV Flowmeter | range 5-50 LPM air. | Blackhawk Supply

RMA-23-SSV | Flowmeter | range 5-50 LPM air. | Dwyer

Brand: Dwyer

SKU: RMA-23-SSV

Dwyer RMA-22-TMV Flowmeter | range 2-25 LPM air. | Blackhawk Supply

RMA-22-TMV | Flowmeter | range 2-25 LPM air. | Dwyer

Brand: Dwyer

SKU: RMA-22-TMV

Dwyer RMA-21-TMV Flowmeter | range 1-10 LPM air. | Blackhawk Supply

RMA-21-TMV | Flowmeter | range 1-10 LPM air. | Dwyer

Brand: Dwyer

SKU: RMA-21-TMV

Dwyer RMB-49-SSV Flowmeter | range .5-5 SCFH air. ±5% accuracy. | Blackhawk Supply

RMB-49-SSV | Flowmeter | range .5-5 SCFH air. ±5% accuracy. | Dwyer

Brand: Dwyer

SKU: RMB-49-SSV

Dwyer RMA-9-TMV Flowmeter | range 15-150 SCFH air. | Blackhawk Supply

RMA-9-TMV | Flowmeter | range 15-150 SCFH air. | Dwyer

Brand: Dwyer

SKU: RMA-9-TMV

Dwyer RMA-151-SSV Flowmeter | range 5-50 cc/min air. ±8% accuracy. | Blackhawk Supply

RMA-151-SSV | Flowmeter | range 5-50 cc / min air. ±8% accuracy. | Dwyer

Brand: Dwyer

SKU: RMA-151-SSV

Dwyer RMA-9-SSV Flowmeter | range 15-150 SCFH air. | Blackhawk Supply

RMA-9-SSV | Flowmeter | range 15-150 SCFH air. | Dwyer

Brand: Dwyer

SKU: RMA-9-SSV

Dwyer RMA-7-TMV Flowmeter | range 5-50 SCFH air. | Blackhawk Supply

RMA-7-TMV | Flowmeter | range 5-50 SCFH air. | Dwyer

Brand: Dwyer

SKU: RMA-7-TMV

Dwyer RMA-7 Flowmeter | range 5-50 SCFH air | no valve. | Blackhawk Supply

RMA-7 | Flowmeter | range 5-50 SCFH air | no valve. | Dwyer

Brand: Dwyer

SKU: RMA-7

Dwyer RMA-6-TMV Flowmeter | range 2-20 SCFH air. | Blackhawk Supply

RMA-6-TMV | Flowmeter | range 2-20 SCFH air. | Dwyer

Brand: Dwyer

SKU: RMA-6-TMV

Dwyer RMA-34 Flowmeter | range 20-300 cc/min water | no valve. | Blackhawk Supply

RMA-34 | Flowmeter | range 20-300 cc / min water | no valve. | Dwyer

Brand: Dwyer

SKU: RMA-34

Dwyer RMA-3 Flowmeter | range.2-2 SCFH air | no valve. | Blackhawk Supply

RMA-3 | Flowmeter | range.2-2 SCFH air | no valve. | Dwyer

Brand: Dwyer

SKU: RMA-3

Dwyer RMA-25 Flowmeter | range 10-100 LPM air | no valve. | Blackhawk Supply

RMA-25 | Flowmeter | range 10-100 LPM air | no valve. | Dwyer

Brand: Dwyer

SKU: RMA-25

Dwyer RMA-23 Flowmeter | range 5-50 LPM air | no valve. | Blackhawk Supply

RMA-23 | Flowmeter | range 5-50 LPM air | no valve. | Dwyer

Brand: Dwyer

SKU: RMA-23

Dwyer RMA-2 Flowmeter | range .1-1 SCFH air | no valve. | Blackhawk Supply

RMA-2 | Flowmeter | range .1-1 SCFH air | no valve. | Dwyer

Brand: Dwyer

SKU: RMA-2

Dwyer RMA-151 Flowmeter | range 5-50 cc/min air | no valve. ±8% accuracy. | Blackhawk Supply

RMA-151 | Flowmeter | range 5-50 cc / min air | no valve. ±8% accuracy. | Dwyer

Brand: Dwyer

SKU: RMA-151

Dwyer RMA-150 Flowmeter | range 10-100 cc/min air | no valve. ±8% accuracy. | Blackhawk Supply

RMA-150 | Flowmeter | range 10-100 cc / min air | no valve. ±8% accuracy. | Dwyer

Brand: Dwyer

SKU: RMA-150

Dwyer RMA-14 Flowmeter | range 200-2500 cc/min air | no valve. | Blackhawk Supply

RMA-14 | Flowmeter | range 200-2500 cc / min air | no valve. | Dwyer

Brand: Dwyer

SKU: RMA-14

Dwyer RMA-12 Flowmeter | range 50-500 cc/min air | no valve. | Blackhawk Supply

RMA-12 | Flowmeter | range 50-500 cc / min air | no valve. | Dwyer

Brand: Dwyer

SKU: RMA-12

Dwyer RMA-10 Flowmeter | range 20-200 SCFH air | no valve. | Blackhawk Supply

RMA-10 | Flowmeter | range 20-200 SCFH air | no valve. | Dwyer

Brand: Dwyer

SKU: RMA-10

Dwyer GFT2-15-RS485 Flow totalizer | 4-20 mA input | RS-485 serial communication. | Blackhawk Supply

GFT2-15-RS485 | Flow totalizer | 4-20 mA input | RS-485 serial communication. | Dwyer

Brand: Dwyer

SKU: GFT2-15-RS485

Dwyer OP-M-3 Orifice plate flowmeter | 8" line size | 5.600" bore | 0.70 Beta | water capacity: 320" d.p. W/C | 2195.86 GPM flow; air capacity: 200" d.p. W/C | 5532.00 SCFM @ 14.7 psia | 9525.43 SCFM @ 20 psig | 18290.00 SCFM @ 100 psig; 14 lb. | Blackhawk Supply

OP-M-3 | Orifice plate flowmeter | 8" line size | 5.600" bore | 0.70 Beta | water capacity: 320" d.p. W / C | 2195.86 GPM flow; air capacity: 200" d.p. W / C | 5532.00 SCFM @ 14.7 psia | 9525.43 SCFM @ 20 psig | 18290.00 SCFM @ 100 psig; 14 lb. | Dwyer

Brand: Dwyer

SKU: OP-M-3

Dwyer OP-J-2 Orifice plate flowmeter | 4" line size | 2.000" bore | 0.50 Beta | water capacity: 100" d.p. W/C | 141.51 GPM flow; air capacity: 100" d.p. W/C | 503.76 SCFM @ 14.7 psia | 810.06 SCFM @ 20 psig | 1507.64 SCFM @ 100 psig; 7 lb. | Blackhawk Supply

OP-J-2 | Orifice plate flowmeter | 4" line size | 2.000" bore | 0.50 Beta | water capacity: 100" d.p. W / C | 141.51 GPM flow; air capacity: 100" d.p. W / C | 503.76 SCFM @ 14.7 psia | 810.06 SCFM @ 20 psig | 1507.64 SCFM @ 100 psig; 7 lb. | Dwyer

Brand: Dwyer

SKU: OP-J-2

Dwyer OP-G-2 Orifice plate flowmeter | 2.5" line size | 1.250" bore | 0.50 Beta | water capacity: 100" d.p. W/C | 55.54 GPM flow; air capacity: 100" d.p. W/C | 197.54 SCFM @ 14.7 psia | 317.58 SCFM @ 20 psig | 590.91 SCFM @ 100 psig; 4 lb. | Blackhawk Supply

OP-G-2 | Orifice plate flowmeter | 2.5" line size | 1.250" bore | 0.50 Beta | water capacity: 100" d.p. W / C | 55.54 GPM flow; air capacity: 100" d.p. W / C | 197.54 SCFM @ 14.7 psia | 317.58 SCFM @ 20 psig | 590.91 SCFM @ 100 psig; 4 lb. | Dwyer

Brand: Dwyer

SKU: OP-G-2

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Schneider Electric MG350V-24F SmartX, Globe Valve Actuator, floating, non-spring return, 24 Vac/Vdc, 78 lbf, LED status indicator, NEMA 2 | Blackhawk Supply

MG350V-24F | SmartX, Globe Valve Actuator, floating, non-spring return, 24 Vac/Vdc, 78 lbf, LED status indicator, NEMA 2 | Schneider Electric

Brand: Schneider Electric

SKU: MG350V-24F

Veris PWLX05S 12 to 30 VDC/24 VAC Input 4 to 20 mA/0 to 5 V/0 to 10 V Output Wet Media Differential Pressure Transducer with LCD Display, 0 to 250 psig | Blackhawk Supply

PWLX05S | 12 to 30 VDC/24 VAC Input 4 to 20 mA/0 to 5 V/0 to 10 V Output Wet Media Differential Pressure Transducer with LCD Display, 0 to 250 psig | Veris

Brand: Veris

SKU: PWLX05S

Siemens SKD62U Flowrite Electro-Hydraulic Actuator, 24Vac, Proportional, SR, 3/4" Stroke | Blackhawk Supply

SKD62U | Flowrite Electro-Hydraulic Actuator, 24Vac, Proportional, SR, 3/4" Stroke | Siemens

Brand: Siemens

SKU: SKD62U

Belimo B220+LF120 US CCV | 0.75" | 2 Way | 14 Cv | w/ Spg Rtn | 120V | On/Off | Blackhawk Supply

B220+LF120 US | CCV | 0.75" | 2 Way | 14 Cv | w/ Spg Rtn | 120V | On/Off | Belimo

Brand: Belimo

SKU: B220+LF120 US

iO HVAC Controls iO-TWIN iO HVAC Controls iO-TWIN Universal Twinning and Paralleling Kit | Blackhawk Supply

iO-TWIN | iO HVAC Controls iO-TWIN Universal Twinning and Paralleling Kit | iO HVAC Controls

Brand: iO HVAC Controls

SKU: iO-TWIN

Belimo GMB24-SR Damper Actuator | 360 in-lb | Non-Spg Rtn | 24V | Modulating | Blackhawk Supply

GMB24-SR | Damper Actuator | 360 in-lb | Non-Spg Rtn | 24V | Modulating | Belimo

Brand: Belimo

SKU: GMB24-SR

Belimo LRB24-3 Valve Actuator | Non-Spg | 24V | On/Off/Floating Point | Blackhawk Supply

LRB24-3 | Valve Actuator | Non-Spg | 24V | On/Off/Floating Point | Belimo

Brand: Belimo

SKU: LRB24-3

Belimo AMB24-SR Damper Actuator | 180 in-lb | Non-Spg Rtn | 24V | Modulating | Blackhawk Supply

AMB24-SR | Damper Actuator | 180 in-lb | Non-Spg Rtn | 24V | Modulating | Belimo

Brand: Belimo

SKU: AMB24-SR

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