Insertion Flow Sensor features three output options.

Press Release Summary:

Mounted into 2-48 in. pipe without system shutdown, Signet 2552 Metal Magmeter can measure flow in fluids containing particles, solids, and fibers. Design permits hot-tap access to pipe stream and is built of corrosion-resistant materials. Along with frequency, digital, and 4-20 mA output choices, sensor offers empty pipe detection and bidirectional flow capabilities as well as linearity of ±1% reading. Dynamic flow range is 0.15-33 fps, with repeatability of ±0.5% of reading at 25°C.

Original Press Release:

GF Piping's New Metal Magmeter Features Easy Hot Tap Installation without System Shutdown and Choice of Three Output Options

TUSTIN, Calif. - Feb. 1, 2007 - GF Piping has introduced the new Signet 2552 Metal Magmeter, a rugged insertion flow sensor that permits hot-tap access to the pipe stream. This design allows quick and easy installation or maintenance without system shut-down, significantly reducing overall costs. Three output choices are incorporated into a durable metal housing, providing a robust device capable of accurate flow sensing in extremely harsh environments.

The 2552 can be mounted into a broad range of pipe sizes from 2 to 48 inches (DN50 to DN1200). Outstanding performance characteristics include a wide dynamic flow range of 0.15 to 33 ft/s (0.05 to 10 m/s) with repeatability of ±0.5% of reading at 25°C. Superior linearity of ±1% reading provides excellent performance across a wide range of environments. Corrosion-resistant materials include 316 Stainless Steel, PVDF and FPM to ensure long service reliability and minimal maintenance.

Key to the unit's design is its adjustable configuration, which allows a hot-tap installation using a ball valve. Installation or service can be completed without any additional tools or disrupting the pipe, and retrofitting is easily accomplished. For special underwater applications, a submersible waterproof cable is available.

The 2552's magmeter technology features no moving parts to wear or foul and high accuracy sensing without the excessive costs associated with full bore magnetic flow units. With no moving parts to wear, the unit accurately measures flow in fluids containing a high content of particles, solids and fibers, making it an excellent choice for applications with dirty fluids. Typical applications include municipal water distribution, water inlets to process plants, surface, ground and ocean water, chemical processing, water and wastewater monitoring, and industrial water distribution.

Offering maximum application versatility, the 2552 is available in three output options including frequency, digital, or 4-20mA. These options allow customers the flexibility to connect with other Signet instrumentation via the frequency or digital (S3L) signal output, or use the blind transmitter (4 to 20 mA output) or digital sensor interface for long distance signal transmission application requirements. The 4 to 20mA output is factory spanned and can be changed using the PC compatible accessory set-up tool.

The 2552 Magmeter offers both empty pipe detection and bi-directional flow capabilities. These sophisticated features enable the unit to meet a wide range of application needs. An empty pipe is detected by sensing when the electrodes are not completely wetted and indicates the condition with a zero flow signal output. This feature eliminates the need to perform special plumbing to keep the sensor wet at all times, or the need to re-pipe or re-mount the sensor in another location when fluid is emptied from the pipe - both valuable time savers in terms of labor and cost.

For applications where bi-directional flow measurement is required, the unit's capability to measure flow in both directions becomes particularly advantageous. Frequency output is bi-directional, while the 4 to 20mA output can be set for single or bi-directional flow.

GF Piping supplies a full range of plastic pipe, fittings, tubing, valves, actuators, rotameters, fusion machines, secondary containment, tank linings, heat exchangers, custom products, and sensors and instrumentation for industrial process control. For further information, please contact GF Piping Systems., 2882 Dow Avenue, Tustin, CA 92780-7258; Toll Free (800) 854-4090, Fax (714) 731-6201; e-mail:; Web:

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