Series 7920 Flowmeter

The 7920 flowmeters provide the most accurate indication and precise control of gases available for a wide range of applications. This versatile meter is functionally and dimensionally interchangeable with other current designs while incorporating may innovative features.

All 7920 glass metering tubes have integral float guides to assure the accuracy of +/- 5% of full scale. Glass and stainless steel floats are standard. The meters are available in a wide range of flows.

Standard with this series is the TUBE-CUBE, a unique, design concept. The "cube", a unitized tube holder, aligns the tube quickly and easily for a simple tube installation or replacement, reduces chipped tube ends, broken tubes, and misalignment. The TUBE-CUBE also provides tube protection during handling and storage and affords a 1.5X scale magnification factor for more accurate tube reading. End seals in the design are direct-acting and nonrotating for fast alignment and convenient service access.

Series 7920 Features

High resolution 150mm scale length
Many standard direct reading scales available
Precision taper, fluted metering tube
Lowest available pressure drop via maximum flow path area increases available flow rates at low feed pressures
Standard front panel mounting requires minimum hardware- easy installation, quick access
Available utility and high precision metering valves do not require special fittings
Simplified; direct acting non-rotating compression seal

Series 7920 Specifications

Maximum Pressure: 250 psig
Temperature Range: -20oF to +250oF (-30oC to +120oC)
Accuracy: +/- 5% of full scale
Repeatability: +/-0.25% of scale reading

Materials of Construction

End Blocks: Chrome plated Brass, 316 Stainless Steel, or Monel
"O" Rings & Packing: Viton-standard, Buna-N, EPR rubber and Teflon are available options
Side Plates: Anodized Aluminum

Series 7920 Applications

Carrier and fuel gas chromatography
Semiconductor manufacture
Chemical Processing
Atomic absorption
General research and industrial uses

Ordering Information

Ordering Information
Model	Material		Valve Type
B7920^*	Brass		None
B7920V^*	Brass		Standard
B7920HA^*	Brass		High Accuracy
S7920	316 Stainless Steel		None
S7920V^*	316 Stainless Steel		Standard
S7920HA^*	316 Stainless Steel		High Accuracy
M7920^*	Monel		None
M7920V^*	Monel		Standard
*Each model includes one tube from the table; HERE Specify your choice when ordering.
Options		P/N Suffix
1/4" NPT female inlet & outlet 1/4" hose barbs inlet & outlet-add suffix HB 1/4" compressions tube fittings inlet & outlet 1/8" compressions tube fittings inlet & outlet Bench stand-Model 7920B		P4FF HB T4FF T2FF