Envco – Environmental Equipment

Quality Features
The F-400N Series flowmeters are machined of highest quality acrylic that is polished to a crystal clear finish. Additional design features include corrosion and wear resistant internal parts, sturdy well-built adapters, Viton® o-ring seals, and PVC or stainless steel floats.

Easy Reading
Permanent scales are screen printed onto the meter body directly in front of the float for easy reading. The F-400’s also include back reflectors for easy reading.

Various Models
As shown in the Ordering & Options section below, F-400N Series flowmeters are available for a variety of flow rates; with 1/4, 3/8, or 1/2" F/NPT adapters; and with components in a variety of materials. In addition to the versions presented below, other configurations and flow ranges are available. Please contact us with your desired mounting configuration, liquid being measured, and measurement range in gpm, lpm or cfm.

Specifications
Max. Working
Pressure
150 psi (10.3 bar) @ 70°F (21°C)
Max. Fluid Temperature
Polypropylene adapters: 150°F (65°C) @ 0 psi
PVC adapters and fl oats: 120°F (49°C) @ 0 psi
Full Scale Accuracy
± 5% Calibration Fluid Water, specific gravity 1.0
Maximum Pressure Drop 2 psi
Dimensions F-400N: 8-3/16" H x 1-1/4" dia. (21cm H x 3.2cm dia.)
F-410N: 11" H x 1-3/4" dia. (28cm H x 4.5cm dia.)

Ordering Information
F-400N Standard Models for Liquid
1/4" F/NPT Adapter PVC Connector
F-40250LN- 4 PVC Float Flow Range (gpm) 0.025 to 0.250 Flow Range (lpm) 0.1 to 1.0
F-40050LN-4 316 SS Float Flow Range (gpm) 0.050 to 0.500 Flow Range (lpm) 0.2 to 2.0

1/2" F/NPT Adapter Polypropylene Connector
F-40375LN-8 PVC Float Flow Range (gpm) 0.1 to 1.0 Flow Range (lpm) 0.4 to 4.0
F-40376LN-8 316 SS Float Flow Range (gpm) 0.2 to 2.0 Flow Range (lpm) 1.0 to 7.5
F-40377LN-8 316 SS Float Flow Range (gpm) 0.3 to 3.0 Flow Range (lpm) 1.5 to 11.0
F-40500LN-8 316 SS Float Flow Range (gpm) 0.5 to 5.0 Flow Range (lpm) 2.0 to 20.0

F-410N Standard Models for Liquid
3/4" F/NPT Adapter Polypropylene Connector
F-40750LN-12 316 SS Float Flow Range (gpm)1.0 to 10 Flow Range (lpm) 4 to 38
F-41017LN-12 316 SS Float Flow Range (gpm)1.0 to 17 Flow Range (lpm) 4 to 64
F-41000LN-12 316 SS Float Flow Range (gpm)2.0 to 20 Flow Range (lpm) 8 to 80

1" F/NPT Adapter Polypropylene Connector
F-41000LN-16 316 SS Float Flow Range (gpm)2.0 to 20 Flow Range (lpm) 8 to 80