Glass Tube Purge Meter
Glass Tube Purge Meter
Glass tube purge meters have a rugged stainless steel frame, are available in 1½- inch and 3-inch scale lengths and use a high-stability float for accurate, repeatable performance. Meters can be supplied with flow controllers and plastic bezels for flush mounting (not available with 1½-inch scale purge meter).
Standard meters calibrations are in CCM, GPH, SCCM, SCFH and PERCENT.
All meters feature an optional built-in flow-control valve, horizontal inlet and outlet connections and an external threaded tube locking plug for easy tube removal. An optional purge type flow controller is available for inlet or outlet mounting.

Features
- Unique one piece frame design for strength and rigidity.
- Easy-to-remove metering tube.
- Choice of percent or engineering units.
- Positive tube locking mechanism.
- Maximum capacities from .32 CCM to 40 GPH Water, 30 SCCM to 110 SCFH air at STP.
Benefits
- Rugged for extreme conditions
- Accurate, repeatable performance
- Multiple configurations available
- Easy tube removal
- Optional flow controllers available for inlet or outlet mounting.
Product Details
Accessories
Flow Controllers
The flow measurement product line offers three types of flow controllers:
- Series 5700 General Purpose Flow Controller
- Series 5750 High Pressure Flow Controller
- Series 5800 Purge Type Flow Controller.
Each is designed to maintain a constant set flow rate regardless of variations in the line pressure. All of these basic arrangements are suitable for gas and liquid service.
The Series 5700 General Purpose type has a broad range of applications. It can be used with almost any equipment or within any flow system in which the process fluid is compatible with 316 stainless steel construction.
It is ideally suited for the Armored Purge Meters, Armored Flow Meters, Glass-tube Varea-Meter® units, or as a stand-alone controller with other meter types.

The Series 5800 and 5750 purge type flow controllers are engineered specifically for use with the Glass-tube Purge Meters, Low-flow Meters, and Arma-View®II Armored Purge Meters. The Series 5800 purge-type flow controller is engineered specifically for use with glass-tube purge meters. The Series 5750 high pressure flow controller is designed for use with purge meters in high pressure and temperature applications (1000 PSI and 400 degF MAX). Both the 5800 and 5750 series controllers are offered in an inlet or outlet flow configuration for added versatility.
Features
- Simple, Direct Design. The clean, straight-through design makes it simple to integrate these controllers within a system. Installation piping is direct and uncomplicated.
- Reliable and Accurate Operation. These controllers maintain a constant set flow rate by sustaining a constant pressure drop across their orifices. The size of the orifice is varied while the pressure drop is held constant. This balance provides a set flow despite changes in the supply pressures.
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Sturdy Construction. The housing and valve stem for all controllers is constructed of 316 SS, while the diaphragm is made from highly chemical resistant Teflon material.
Key Benefits
- Choice of integral and stand alone design allows for flexible installation options
- Easily adapt to existing meters
- Reliable and accurate operation despite changes in the supply pressures
- Chemically resistant to many process conditions
- Wide spectrum of flow rates and pressures allowable
- Easy to integrate controllers within the system with direct and uncomplicated
Liquid and Gas Flow Meters

Liquid Capacity Chart

Gas Capacity Chart

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