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ECOsystem™

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.

Where to Use
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.
Inject ESG OdorEyes

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.

Specifications
ECOsystem™
More Information
Product Category : Odorization
ESG
Maximum Allowable Operating Pressure : 1500 psig (530 barg)
Electrical : AC 120 V
DC 24 V
Flow Rate : 2 MMscfh
Tank Volume : 20 US Gallons (75 L)
60 US Gallons (227 L)
120 US Gallons (454 L)
250 US Gallons (946 L)
500 US Gallons (1892 L)
Features : Odorant Tank Level Gauge
Skid With 110% Containment
Temperature Transmitter
Welker Program and Touch Screen Controller
Options : Solar Panel
Steel Building or Sunroof
Maximum Injection Pressure : 500 psig (34 barg)

Weight and/or dimensions are approximate.

Specifications subject to change without notice.

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