281.491.2331 13839 West Bellfort Street Sugar Land, TX
281.491.2331 13839 West Bellfort Street Sugar Land, TX
ISO 9001:2015
U.S. Patents
80 + U.S. Patents
Since 1954
Get A Quote


Chemical Infusion & Odorization


Welker’s patent pending pumpless, pressure-driven odorant injection system is a complete solution for proportional to flow odorization for flow rates from 25 Mscfh up to 80 MMscfh and pipelines with a maximum allowable operating pressure of 1400 psig.


Safely and effectively odorize individual low flow natural gas lines with Welker’s wick style odorizer.

IntelliScent™ Odorant Monitor

Why wait for a monthly sniff test? Ensure your distribution system is properly odorized at all times: install Welker’s IntelliScent™ Odorant Monitor to frequently and objectively measure odorant levels.

Spill Kit

Welker’s solution for emergency response to liquid odorant spills.

Diffusing Probe

Designed for use with injection odorizers, Welker’s diffusing probe allows for rapid odorant dispersal across the full diameter of the pipeline, ensuring uniform odorization, even during times of variable flow.


Welker’s economical solution for passive removal of mercaptan odor from natural gas exhaust lines of constant and intermittent bleed systems.

Portable Odorizer

Welker’s compact portable injection odorizer is your safeguard against emergency interruptions to operation. The Portable Odorizer provides temporary, time-based odorization for flow rates up to 6.5 MMscfh and pipelines with a maximum operating pressure of 2000 psig.


Welker’s all-in-one, one-of-a-kind pumpless vapor injection odorizer for proportional to flow natural gas odorization in low, high, and variable flow conditions.


Welker’s turnkey natural gas injection odorization solution for flow rates from 1 Mscfh up to 70 MMscfh  and a maximum operating pressure of 1800 psig.

OdorXice™ Plus

OdorXice Plus™ is based on patented technology designed to break down mercaptans and other organosulfur compounds, including hydrogen sulfide. This safe and biodegradable formula will completely eliminate the source of odors on any surface.