Certified
ISO 9001:2015
Innovation
90+ U.S. Patents
Worldwide
Global Support
Experts
Since 1954
Certified
ISO 9001:2015
Innovation
90+ U.S. Patents
Worldwide
Global Support
Experts
Since 1954
Zero-emission liquid odorant injection with smart proportional-to-flow control
The Welker ECOsystem™ Liquid Pumpless Injection System is a turnkey zero-emission natural gas odorizer designed to inject liquid odorant proportional to flow without releasing methane during normal operation. Built for city gate stations, distribution pipelines, municipalities, industrial plants, grain dryers, and renewable natural gas applications, the ECOsystem™ Liquid combines pumpless odorization technology with the accuracy and verification of the Accu/Line™ family of smart odorant injection systems. With flow coverage from low to high demand, touch screen control, Modbus or Ethernet communication, audit trail logging, redundant solenoids, low-pressure odorant storage, and 110% containment, the ECOsystem™ Liquid supports accurate odorization, emissions reduction, and dependable field operation.
Natural Gas Distribution and City Gate Odorization
Liquid odorant injection for city gate stations, distribution pipelines, municipalities, industrial plants, and grain dryers.
Renewable Natural Gas Odorization
Proportional liquid odorant injection for RNG, biogas, and biomethane applications.
Zero-Emission Odorization Projects
Natural gas odorization where methane emissions reduction, auditability, and dependable odorant delivery are key operating goals.
Zero-Emission Pumpless Design
Injects odorant without methane release during normal operation, helping support ESG and emissions reduction goals.
Liquid Odorant Injection
Delivers liquid odorant proportional to flow for accurate natural gas odorization across changing demand.
Touch Screen Controller With Welker Program
Automatically adjusts injection volume and rate to changing flow conditions without manual volume adjustment.
Remote Monitoring Using Modbus or Ethernet
Supports off-site system monitoring, troubleshooting, and operational visibility.
Audit Trail and Alarm Log on microSD Card
Stores time- and date-stamped records for reporting, planning, and maintenance review.
Redundant Solenoids With Automatic Failover
Helps limit interruptions to odorant injection and maintain system reliability.
Low-Pressure Odorant Supply Tank With 110% Containment
Helps protect the ground from contamination and supports easier cleanup.
