Envco – Environmental Equipment

The F-450N and F-451N Variable Area Inline Flowmeters cover a wide range of flows and can handle many kinds of liquids.

Features
• Rugged polysulfone body
• Union connectors for easy cleaning

Designed to last, these flowmeters feature a polysulfone body, PVC connectors, and a stainless steel fl oat and guide rod. The handy union connectors facilitate easy removal for periodic cleaning. Choose from a variety of flow ranges and the three connection sizes listed in the ordering section below.

Other connection sizes, rate valves, and panel mount versions are available by special order

Specifications
Accuracy ±5% full scale

Materials Body: Polysulfone
Adapter: Polysulfone
Float: 316 SS or PTFE
O-rings: Viton®
Half union: Anodized aluminum

Maximum Pressure 150 psi (10.3 bar) @ 70°F (21°C)
Maximum Pressure Drop 2 psi
Maximum FluidTemperature212°F (100°C)
Dimensions F-450N: 10" height x 1-7/8" dia.(25.4 height x 4.8 cm dia.)
F-451N: 14" height x 3-3/16" dia.(35.6 height x 8.1 cm dia.)

Ordering Information
1/2" NPT
F-45375LHN-8 Flow Range (gpm)0.1 to 1 Flow Range (lpm) 0.4 to 4.4 (M)
F-45376LHN-8 Flow Range (gpm)0.2 to 2. Flow Range (lpm) 0 1.0 to 7.5
F-45500LHN-8 Flow Range (gpm)0.5 to 5.0 Flow Range (lpm) 2.0 to 20.0

3/4" NPT (M)
F-45500LHN-12 Flow Range (gpm)0.5 to 5.0 Flow Range (lpm) 2.0 to 20.0
F-45750LHN-12 Flow Range (gpm)1.0 to 10.0 Flow Range (lpm) 4.0 to 40.0

1" NPT (F)
F-451002LHN Flow Range (gpm)2.0 to 20.0 Flow Range (lpm) 7.5 to 75.0
F-451003LHN Flow Range (gpm)3.0 to 30.0 Flow Range (lpm) 12.0 to 115.0
F-451004LHN Flow Range (gpm)4.0 to 40.0 Flow Range (lpm) 15.0 to 155.0