W30 Gauge Valves
Series W30 Gauge valves are recommended for use with Wellmark’s Series W20 Visual Level Indicators and are compatible with all industry standard, armored flat-glass liquid level gauges. Plain/Union and Union/Union connections make for easy installation and removal.


Features
- Equipped with stainless steel ball check upstream of the seat to shut off flow in case of Level Indicator glass breakage.
- Indicator Union Connection to allow top and bottom connected Indicators to be rotated to any angle visibility and allows for easy Indicator removal.
- Gauge Valve and drain connections are offset from the vessel connection centerline for easier Indicator glass cleaning.
- Materials meet NACE MR0175 specifications.
Specifications
- Sight Glass Connection: 1/2″ NPT or Union
- Tank Connection: 1/2″ and 3/4″ Union

Our History
ChampionX has been serving customers for over a century. See our vast company history that dates back to the 1800’s.

Resource Library
Filter through our latest product literature to find case histories, product brochures, news, and more.
Have a Question?
Contact an expert or give us a call.
Why work with us
7,000+
Employees
60+
Countries
30+
Manufacturing Locations
400+
Scientists and Technologists
1,400+
Patents