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 pumpless odorization for dependable natural gas delivery
The Welker ECOsystem™ Pumpless Vapor Injection System is a turnkey natural gas odorization system designed for proportional-to-flow odorant delivery in low, high, and variable flow conditions. Built for city gate stations, distribution pipelines, municipalities, industrial plants, grain dryers, and renewable natural gas applications, the ECOsystem™ uses regulated pressure differential and Welker Original triple solenoid technology to provide accurate odorization across a wide operating range. With zero emissions during normal operation, few moving parts, high turndown, and odor-free maintenance, the ECOsystem™ supports reliable odorant injection while helping operators reduce methane emissions and maintenance exposure.
Natural Gas Distribution and City Gate Odorization
Proportional-to-flow odorization for city gate stations, distribution pipelines, municipalities, industrial plants, and grain dryers.
Renewable Natural Gas Odorization
Odorization for RNG, biogas, and biomethane applications where accurate, reliable odorant delivery is required.
Variable Flow Applications
Ideal for locations with wide flow variation that require high turndown and dependable odorant injection.
Pumpless Vapor Injection
Uses regulated pressure differential to deliver odorant without a pump, reducing moving parts and maintenance needs.
Zero-Emission Operation
Supports emissions reduction by eliminating methane release during normal odorization operation.
Triple Solenoid Design
Uses low-flow, high-flow, and backup solenoids to support accurate odorization across changing flow conditions.
High Turndown
Provides proportional-to-flow odorization across a wide operating range.
Serviceable Components Upstream of the Odorant Tank
Helps enable odor-free maintenance by keeping service points away from odorant exposure.
