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Smart low-flow odorant injection for dependable natural gas odorization
The Welker Accu/Line™ Lo is a turnkey natural gas injection odorization system designed for low-flow transmission pipelines, distribution pipelines, compressor stations, power plants, peaking facilities, municipalities, and renewable natural gas applications. Built for flow rates from 1 Mscfh up to 720 Mscfh and maximum operating pressure up to 1800 psig, the Accu/Line™ Lo automatically adjusts odorant injection rate to changing flow conditions for continuous proportional-to-flow odorization. With an intuitive touch screen controller, Modbus or Ethernet communication, audit trail and alarm logging, redundant pumps with automatic failover, and self-priming pumps, the Accu/Line™ Lo supports accurate odorant delivery in low-flow and variable-flow natural gas systems.
Low-Flow Natural Gas Odorization
Turnkey odorant injection for low-flow transmission pipelines, distribution pipelines, compressor stations, and utility systems.
Municipal and Distribution Applications
Proportional-to-flow odorization for municipalities, gas distribution systems, power plants, and peaking facilities.
Renewable Natural Gas Odorization
Odorant injection for low-flow RNG, biogas, and biomethane applications.
Touch Screen Controller
Automatically adjusts the injection rate to changing flow conditions for continuous proportional-to-flow odorization.
Remote Monitoring Using Modbus or Ethernet
Supports off-site system monitoring and troubleshooting without frequent site visits.
Audit Trail and Alarm Log on microSD Card
Stores historical records for reporting, maintenance planning, and alarm review.
Redundant Pumps With Automatic Failover
Helps limit interruptions to operation and maintain odorant delivery.
Self-Priming Pumps
Helps eliminate vapor lock for dependable low-flow odorization.
| Accu/Line™ Lo 1 Mscfh–720 Mscfh |
Accu/Line™ 10 Mscfh–7 MMscfh |
Accu/Line™ Hi 50 Mscfh–70 MMscfh |
|
|---|---|---|---|
| Materials of Construction | 316/316L Stainless Steel, Anodized Aluminum, Buna, FKM, FFKM, PTFE | 316/316L Stainless Steel, Anodized Aluminum, FFKM, PTFE | 316/316L Stainless Steel, Anodized Aluminum, FFKM, PTFE |
| Power | DC 24 V | ||
| AC 120 V | |||
| Optional Solar Panel | |||
| Injection Outlet Connection | ¼" Tubing | ||
| Instrument Gas Connection | ⅜" Tubing | ||
| Odorant Inlet Connection | ⅜" Tubing | ||
| Vent Connection | ⅜" Tubing | ||
| Odorant Inlet Pressure Required | 10 psig–50 psig | ||
| Instrument Gas Pressure Required | 15 psig–70 psig | 30 psig–225 psig | 30 psig–225 psig |
| Injection Volume | 0.06 cc, 0.2 cc, 0.5 cc | 0.5–10 cc | 10–50 cc |
| Injection Rate | Up to 10 Injections/Minute | Up to 5 Injections/Minute | Up to 3 Injections/Minute |
| Tank Volume | 120, 250, 500, 1000 US Gallons | ||
| Ambient Temperature | - 20 °F to 120 °F | ||
| Operating Pressure | 1800 psig | ||
Weight and/or dimensions are approximate.
Specifications subject to change without notice.
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