Oval Gear Spec Sheet - NIAGARA - (Version JPG) - PDF Catalogue | Technical Documentation

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Flow indicator, Signal converter, Ultrasonic sensor, Digital indicator, Indicator

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NIAGARA

NGM SerleS OvaL QeaT. Flowmeters

Niagara NGM Series is a comprehensive range of quality positive displacement flowmeters. Precision engineered, all NGM Series meters are individually factory tested and their accuracy verified against certified NATA (National Association of Testing Authorities) master meters.

All listed nominal K factors are used in meter accuracy verifications and each meter has a calibration report measuring meter accuracy against the nominal K factor.

Liquid enters a precision-machined housing containing a set of oval gears. Liquid pressure drives the gears to rotate and measure an exact volume per revolution. The movements of the gears are transmitted to an indicator / totalizer or pulse transmitter. Close clearances between the oval gears and the housing ensure minimum liquid slip for highly accurate and repeatable measurement of each volume cycle.

BENEFITS

High Accuracy + 0.5% of rate

- close clearances minimize or eliminate leaks Reliable Design

- assures flexibility in many different applications

- high turndown ratio up to 200:1

- low flow measurement capability (0.26 GPH) Exceptional Value

- eliminates upstream and downstream straight run piping requirements

- power not required for mechanical version

SPECIFICATIONS


Model	NGM1	NGM2	NGM4	NGM10	NGM40	NGM50
Meter type	Pulse		Pulse (refer to meter numbering system for LCD or mechanical options)
Meter body material Wetted components: Rotor material Shafts O-rings	PPS (Polyphenylene Sulfide) or 316 Stainless steel PPS or 316 SS PPS or 316 SS 316 Stainless steel (Hastelloy optional) Viton* (standard model)		PPS or 316 SS	PPS, Aluminum or 316 Stainless steel PPS or 316 SS PPS or 316 SS PPS 316 Stainless steel NBR Nitrile (For options refer to numbering system)
Flow rate ranges (Gallons/Liters) Above 5 CPS	0.26 to 26.4 GPH 1 to 100 LPH	0.66 to 132 GPH 15 to 500 LPH	0.26 to 7.9 GPM 1 to 30 LPM	1.6 to 32 GPM 6 to 120 LPM	2.6 to 66 GPM 10 to 250 LPM	4 to 93 GPM 15 to 350 LPM
Below 5 CPS	0.53 to 26.4 GPH 2 to 100 LPH	1.85 to 132 GPH 25 to 500 LPH	0.8 to 6.6 GPM 3 to 25 LPM	2.6 to 26GPM 10 to 100 LPM	4 to 62 GPM 15 to 235 LPM	8 to 80 GPM 30 to 303 LPM
Accuracy - reading (of reading)	± 1%	± 1%	± 0.5%	± 0.5%	± 0.5%	± 0.5%
Maximum viscosity (of standard model)	1000 Centipoise		1000 Centipoise, std. model (above 1000, see page 4 for flow rates)
Maximum operating pressure	75/150 PSI (PPS/SS) • 500/1000 kPa • 5/10 BAR		800 PSI • 5500 kPa • 55 BAR or flange rule where fitted
Pulser type	Hall effect sensor or reed switch		Reed switch (For options refer to numbering system)
Pulses per units (Gallons/Liters)	3785 gal. 1000 liters	1514 gal. 400 liters	424 or 828 gal. 112 or 224 liters	136.3 or 272.6 gal. 36 or 72 liters	54.9 or 109.7 gal. 14.5 or 29 liters	25.4 or 50.8 gal. 6.7 or 13.4 liters
Max.operating temperature	176^o F / 80^o C (For higher temperature rotors refer to page 4)
Recommended mesh strainer size	200 mesh		60 mesh
Will handle particle size	0.005" 0.0127mm	0.005" 0.0127mm	0.011< 0.28mm	0.011< 0.28mm	0.015 < 0.38mm	0.018 < 0.46mm

Table 1

Venture Measurement ■ 150 Venture Boulevard ■ Spartanburg, SC 29306 ■ 864.574.3327 ■ 1.800.778.9251 ■ Fax: 864.574.8063 ■ www.aaliant.com ■ sales@aaliant.com

Oval Gear Spec Sheet - NIAGARA - #1

Flow indicator, Signal converter, Ultrasonic sensor, Digital indicator, Indicator