ZT-100TEG I-Series Retractable
Hot-tappable insertion probe for large-diameter glycol lines
Retractable Insertion Probe
The ZT-100TEG I-Series Retractable is designed for water-in-TEG measurement in large-diameter glycol circulation lines where the probe must be installed and removed under full process pressure. The retraction kit allows the sensor to be inserted through a full-bore ball valve without process shutdown.
The retraction mechanism includes a packing gland, guide tube, and locking collar to safely control probe insertion and extraction under pressure. Available for pipelines 6" and larger, up to ANSI Class 300.
Key Features
Hot-Tappable
Install and remove the probe under full process pressure without shutdown, using a full-bore ball valve and retraction kit.
TEG-Optimised
Calibrated for the dielectric properties of triethylene glycol across the full range of water loading.
Retraction Kit
Includes packing gland, guide tube, and locking collar for safe, controlled insertion and extraction under pressure.
Hazardous Area Certified
ATEX and IECEx certification for Zone 1 and Zone 2 installations at gas processing facilities.
Robust Construction
316L stainless steel probe and wetted parts. 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 Principle | Capacitance-based sensing |
| Medium | Triethylene glycol (TEG) |
| Measurement Range | 0 – 100% water content |
| Accuracy | ±0.5% (application dependent) |
| Pipeline Size | 6" and larger |
| Mounting Flange | 3" ANSI 150RF / 300RF |
| Max Pressure Class | ANSI 300 (Class 300) |
| Process Temperature | −20°C to +120°C |
| Wetted Materials | 316L Stainless Steel, PEEK, Viton |
| Probe Length | Application dependent (adjustable) |
| Isolation Valve | Full-bore ball valve (supplied separately or as kit) |
| Enclosure Rating | IP67 |
| Hazardous Area | ATEX II 1/2 G Ex d IIB T4, IECEx |
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
Large Glycol Headers
Water-in-TEG monitoring in large-diameter glycol headers where the probe must be removable without process interruption.
Central Processing Facilities
Gas plants with continuous uptime requirements where sensor maintenance cannot require a process shutdown.
Offshore Platforms
Glycol dehydration systems on offshore installations where zero-downtime maintenance is essential.
Retrofit Installations
Adding glycol quality monitoring to existing pipelines without shutting down the dehydration system.
Configure Your ZT-100TEG I-Series Retractable
Specify your pipeline size, process conditions, and insertion depth requirements and we will provide a complete quotation including retraction kit.
