ZT-100TEG F-Series
Flange-mounted water-in-TEG monitor for glycol circulation lines
Full-Bore Flange Mount
The ZT-100TEG F-Series is a full-bore, flange-mounted water-in-TEG monitor designed for permanent installation in glycol circulation lines. The sensing element spans the entire pipe cross-section, providing a true average water content reading in the glycol stream.
Available in 2", 3", 4", and 6" sizes with ANSI 150 and ANSI 300 pressure ratings. The F-Series is the preferred choice for main glycol circulation loops where full-bore accuracy is required.

Key Features
Full-Bore Measurement
Sensing element spans the complete pipe cross-section for true average water content measurement in TEG.
TEG-Optimised
Calibrated for the dielectric properties of triethylene glycol across the full range of water loading.
Flanged Connections
ANSI 150RF and 300RF raised-face flanges for straightforward installation in glycol piping systems.
Hazardous Area Certified
ATEX and IECEx certification for Zone 1 and Zone 2 installations at gas processing facilities.
Robust Construction
316L stainless steel wetted parts and IP67 rated enclosure for outdoor gas plant environments.
Standard Communication
4-20mA analog output and Modbus RTU digital communication for DCS, SCADA, and PLC integration.
Technical Specifications
Measurement Performance
| Medium | Triethylene glycol (TEG) |
| Measurement Range | 0–100% |
| Resolution | 0.001% |
| Accuracy | 0.01% |
| Repeatability | 0.01% Absolute |
| Sensitivity | 0.01% |
Mechanical
| Nominal Sizes | 4″ to 48″ |
| Pressure Rating | Up to Class 1500# |
| Process Temperature | +120°C (High Temp Option available) |
| Wetted Material (Sensor) | SS316L (Optional Duplex, Inconel or other steels) |
| Wetted Material (Spool) | A106 Gr B (any standard pipe material available) |
| Seals & Insulators | PEEK |
| Process Connection | ANSI, DIN, JIS |
Electronics
| Principle of Operation | High Frequency Digital Capacitance |
| Output Signal | 4–20mA |
| Digital Communication | Modbus RTU (RS-485) |
| Power Supply | 24VDC (4-wire) |
| Power Consumption | 2W Max |
| Measurement Rate | 1000 per second |
| Ambient Temperature | –20°C to +60°C |
| Ingress Protection | IP66 |
Applications
Lean Glycol Lines
Verify regenerated glycol purity in the lean TEG return line before re-injection into the contactor column.
Rich Glycol Lines
Monitor water loading in rich TEG from the contactor to optimise reboiler duty and energy consumption.
Glycol Circulation Loops
Continuous monitoring at multiple points in the glycol circuit for complete dehydration system oversight.
Reboiler Outlet
Confirm glycol regeneration quality downstream of the reboiler and stripping column.
Configure Your ZT-100TEG F-Series
Specify your pipe size, flange rating, and process conditions and we will provide a complete quotation for your glycol dehydration application.


