Cost-effective, planet-friendly Odorization with the simple and easy to maintain GPL 750

The GPL 750 Odorizer draws from advanced proprietary technology to deliver precise odorization even in problematic conditions. Low-volume, intermittent-volume, even no-flow conditions do not impede the unit’s performance. The PLC receives flow information and automatically compensates the injection rate to provide uniform odorant distribution.

The GPL 750 excels in biogas, biomethane (renewable natural gas), and low-flow natural gas odorization applications. The odorizer unit is appropriate for municipalities, small city gate stations, biomethane, and biogas producers.



  • Environmentally friendly – no gas actuates the system – clean, sealed, and ventless
    • Lowers false leak-call complaints
    • Saves pipeline gas
  • High rangeability (high turndown ratio)
    • Accurate over a wide range, even problematic no-flow, ultra-low-flow, and intermittent-flow applications
  • One moving part ensures simple operation and maintenance + long-lasting performance
  • Cost-effective and competitively priced
  • The wireless modem provides real-time mobile alerts
    • Save time and money with real-time remote monitoring and efficient reporting
    • No additional software required
    • Mobile alerts to smartphone and PC
  • Interfaces with SCADA Systems
  • Industry-leading PLC
    • Intuitive 7” color touchscreen
    • SD card data storage

GPL 750 Specifications

Technical Data
72 lb. (33 kg)
Mechanical box: 42 lb. (19.1 kg)
Electronics box: 30 lb. (13.6 kg)
Typical: 1.5 Amps DC w/ wireless modem
Optional: 2.6 Amps is typical w/ heated display and wireless modem
Gas Pipeline Pressure
1 to 225 PSI (1 to 15.5 Bar) Standard
Odorant Blanket Pressure
10 to 15 PSI (1 Bar)
Data Logging
Hourly archives with audit trail; FTP data retrieval; internal micro SD storage
304 stainless steel
Hazardous Area Classification
Standard: Cl I Div 2, Groups C and D
Optional: Cl I Div 1
Mechanical Box: 28.25” (H) x 16” (W) x 9” (D); (71.76 cm x 40.64 cm 22.86 cm)
Electrical Box: 20”(H) x 16” (W) x 9” (D); (50.8 cm x 40.64 cm x 22.86 cm)
Odorant Injection Rate, Batch
0-18 MMSCFD (750 standard model)
0-24 MMSCFD (750 HC model)
[at injection rate of 0.5 lb./MMSCFH]
Myers hub: (1) 3/4 in NPT; (5) 1/2 in NPT
Odorant inlet: 1/4 in Swagelok tubing
Odorant outlet: 1/2 in Swagelok tubing fitting
Operating Temperature Range
0 to 120˚F (-18 to 49°C)
Optional: Heater assembly available for below 0°F (-18°C)
User Interface Options
320×240 LCD Color Graphics Display with Touch Screen
IP Remote Communication