Flow Indicators
Flow indicators provide a visual indication of flow status in a system. They are used to confirm flow presence, direction, or relative flow rate in applications from industrial processing to HVAC.
Flow indicators allow quick verification of flow during maintenance checks, troubleshooting, and process control and are a simple, low-cost way to confirm a system is running as it should.
DA
Heavy-Duty Sight Flow Indicators
Flap, Rotor, or Drip Indication | SS, Cast Iron, or Cast Steel | Up to 580 PSI | 1/4"...2" NPT | 1/2"...8" ANSI
Size Range
1/4"... 2" NPT, 1/2"... 8" ANSI Flange
Connection Type
NPT Thread or ANSI Flange
Maximum Pressure
230 PSIG (Optional 360 PSIG or 580 PSIG)
Maximum Temperature
250 or 300°F, Depending on Model (Optional 530°F - 260 °C)
Sight Glass with Flap, Rotor, or Drip Tube
Cast Iron, Cast Steel, or Stainless Steel Body
Soda-Lime or Borosilicate Glass Windows
DAA
Sight Flow Indicator with Self-Cleaning Mechanism
Made in the USA | Twist to Clean | With or Without Rotor | Up to 150 cSt | Up to 230 PSI | Brass or SS | 1/4"...1-1/2" NPT
Starting at $233
Fast Delivery
Fittings
¼"...1½" NPT Thread
Body Material
Brass or SS, Borosilicate Glass
Max. Temperature
212 °F (100 °C)
Viscosity Limit
150 cSt Max.
Cleaning Mechanism for Ease of Maintenance
Available With or Without Rotor
BABA (Build America, Buy America) compliant models available
DAF
Low-Flow Paddle Wheel Flow Indicator
Made in the USA | Quick Delivery | For Liquids | as Low as 0.5 GPH | up to 230 °F | up to 235 PSIG | Brass, SS, or Polysulfone | Rotatable During Operation
Starting at $378
Fast Delivery
Flow Range
0.5...1.6 GPH to 80...2380 GPH
Fittings
1/8"...1½" NPT Thread
Body Material
Brass, SS, Polysulfone
Max. Pressure
235 PSIG (Model Dependent)
Max. Temperature
230 °F (110 °C) (Model Dependent)
Clearly Visible Flow Indication
Low Minimum Indicated Flow
Rotatable While in Operation (Except for Material Combination IV)
Applicable to a Wide Variety of Compatible Medias
BABA (Build America, Buy America) compliant models available
DAZ
Referencing Flap Flow Indicator
For Liquids | Water or Oils | Referenced Indication Range via Relative Scale | up to 230 PSIG | up to 390 °F | Glass Windows on Both Sides
Size Range
1/2"... 1" NPT
Connection Type
NPT Thread
Maximum Pressure
230 PSIG
Maximum Temperature
212 °F (100 °C) (Water) or 390 °F (200 °C) (Oil)
Body Material
Red Brass w/Soda Lime Glass Windows
Referenced Indication Range via Relative Scale (Water/Oil)
Durable Stainless Steel Flap/Scale
Large Glass Windows on Both Sides
DIG
Paddle Wheel Flow Indicator
Made in the USA | For Liquids | up to 21 GPM | up to 230 PSIG | up to 176 °F | 1/8" to 1" NPT | Brass, SS, or Polypropylene
Flow Capacity
0.13...3.2 GPM to 0.79...21 GPM
Fittings
1/8"...1" NPT Thread
Housing
Brass, Stainless Steel, Polypropylene
Max. Temperature
176 °F (80 °C)
Clearly Visible Flow Indication
Choice of Three Housing Materials
Non-Metallic (All Plastic) Version Available
BABA (Build America, Buy America) compliant models available
DIH
Rotating Vane Flow Indicator
Made in the USA | Compact Size | Clear Indication | Up to 230 PSI | NPT Connections | 0.05...13.2 GPM
Flow Capability
0.05...0.13 GPM to 0.26...13.2 GPM
Fittings
3/8" NPT Thread, 1" NPT
Housing
Brass, Stainless Steel, POM
Max. Temperature
176 °F (80 °C)
Clearly Visible Flow Indication
Choice of Three Housing Materials
BABA (Build America, Buy America) compliant models available
DKB
Flow Indicator with Ball
Made in the USA | Liquid or Gas | 85 PSI | NPT Thread | Up to GPM | Up to 88 SCFM
Starting at $145
Fast Delivery
Water Ranges
0.014...4.0 GPM to 0.047...27.0 GPM
Air Ranges
0.11...14 SCFM to 0.32...88 SCFM
Max. Temperature
248 °F (120 °C)
Connection
1/8"...1" NPT Thread
Media Categories
Liquid or Gas
DKF
Paddle Wheel Flow Indicator
Made in the USA | For Liquids | up to 22 GPM | up to 87 PSIG | up to 248 °F | 1/8" to 1" NPT | Horizontal or Vertical Installation
Starting at $175
Fast Delivery
Indicating Range
0.04...0.5 GPM to 0.50...22.0 GPM
Fittings
1/8...1 NPT Thread
Max. Temperature
248 °F (120 °C)