Overview

Series FR4500 is a standard precision-machined acrylic flow meter for liquids or gases, has direct reading air and water scales and is available in either English or Metric scales. The FR4500 flow meters can be configured with a control valve on the inlet or no valve at all; fittings and valve can be specified in either brass or stainless steel; O-rings can provided with Buna-N, Viton or other optional elastomers.

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Features
• Easy-to-read English or Metric Scales
• Water ranges from 1 to 20 LPM, 0.25 to 5 GPM
• Air ranges from 14 to 560 LPM, 0.5 to 20 SCFM
• Threaded brass inserts for quick installation
• Easy disassembly and assembly for maintenance
• Durable one-piece clear acrylic construction
• Stable, easy-to-read float
• Superior quality



Specifications
Accuracy: ±3% of Full Scale
Body: Clear Machined Acrylic
Floats: Black Glass, 303 Stainless Steel
Temperature: 150ºF / 65ºC Maximum
Pressure: 100 psi/6.89 Bar Maximum
Seals: Viton® with Stainless Steel or Buna-N with Brass fittings
Fittings: 303 Stainless Steel or Brass 1/4" FNPT
Valves (Optional): Cartridge type, Stainless Steel or Brass

Flow Rates

SCFM of Air Range Model Code 0.5 - 5 4A67 1 - 10 4A65 *2 - 20 4A68

LPM of Air Range Model Code 14 - 140 4A72 30 - 300 4A70 *80 - 560 4A73

GPM of Water Range Model Code 0.25 - 2.5 4L64 0.5 - 5 4L66

LPM of Water Range Model Code 1 - 10 4L69 2 - 25 4L71

Dual Scales: SCFM/SCFH, GPM/GPH and LPM/LPH.
* Minimum 10 psi supply pressure required when valve is specified.

Dimensions

Dimensions

Inches (Millimeters)

Model

A

B

C

D

E

F

G

FR2000

4" (102)

3" (76.2)

1" (25.4)

1 - 5/8" (41.3)

1 - 3/16" (30.2)

1 - 1/8" (28.6)

1/8"

FR4000

6 - 1/2" (165)

5 - 1/2" (140)

1 - 3/8" (34.9)

3 - 1/2" (88.9)

1 - 1/2" (38.1)

1 - 1/8 (28.6)

1/8"

FR4500*

6 - 5/8" (168)

5 - 1/2" (140)

1 - 1/8" (28.6)

3 - 1/2" (88.9)

1 - 1/2" (38.1)

1 - 3/8" (34.9)

1/4"

* Does not include 1/8" back plate.

Ordering Info

		Model Code		Fittings		Valve		Seals
FR		4L71		B		V		BN

EXAMPLE:
2-20 SCFH of Air with Brass Fittings, Valve, and Buna-N O-Rings: (FR4L71BVBN)

Fittings	Valve	Seals
B - Brass (std)	N - None	BN - Buna-N (std with brass fittings)
S - Stainless Steel	V - Valve	VT - Viton® (std with steel)