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Educating on Natural Gas Odorization

Author: Garrett - Odorizer and Odorization Specialist

Discontinued: GPL Z9000 Odorizer (Formerly from Zeck Systems)

GPL Odorizers, the manufacturer of premium odorization systems, announced the discontinuation of the GPL Z9000 odorant injection system. The company will provide support for the current odorizers in the field as well as sell parts for the unit until December 31, 2019, or while supplies last.

Z9000 Odorizer Discontinuance

Zeck Systems originally designed and manufactured the Z9000 odorizer. Sentry Equipment acquired Zeck Systems in 2010, and GPL Odorizers purchased the odorization line in 2015. The Z9000 was introduced in 2003 as a simple, low maintenance, and ventless odorant injection system. Continue reading

How to Calibrate the Optical Comparator of the GPL Z9000 Odorizer?

Here are the instructions with video on how to calibrate the optical comparator of the GPL Z9000 natural gas odorizer.

Optical Comparator

The optical comparator and optical arrays use fiber optics to count the odorant drops as they drop through the drip chamber and into the line. It is this precise counting of measured drops that permit accurate injection.

The optical array on one side of the drip chamber conveys a beam to the array on the other side. When the beam strength suddenly changes, the comparator registers a drop and sends a signal to the Mixed I/O control board. Continue reading

How to Calibrate the Servo on GPL Z9000 Gas Odorization System?

Here are the instructions on how to calibrate the Servo on the GPL Z9000 natural gas odorizer. Zeck Systems/Sentry Equipment originally manufactured this odorization system.

GPL Z9000 Odorizer Servo Calibration

The Servo controls the position of the metering valve during normal operations in the GPL Z9000 odorizer. It opens and closes the valve as necessary to maintain the desired drop rate. As part of the biannual odorizer inspection program, remove the Servo and inspect the metering valve to assure it is operating smoothly.

From time to time, the Servo needs calibration or even replacement. If your unit requires a new Servo, contact GPL Odorizers or (303) 927-7683 or Linc Energy Systems. When performing the calibration on the line with low flow, close your odorant source valve coming from your odorant tank. Continue reading

GPL Z9000 Odorizer Preventive Maintenance

The following is the recommended preventative maintenance for the GPL Z9000 natural gas odorizer. These are guidelines and may vary depending on each site’s circumstances and history of performance. Also, a perfect place to acquaint yourself with this odorant injection system is the GPL Z9000 Instructional Video page. Continue reading

Is mercaptan toxic? Is it safe to inject it into natural gas?

Q. Isn’t mercaptan a toxin? What makes it is a good idea to inject it into natural gas?

A. Mercaptan is indeed a toxic gas and flammable. At high levels, it affects the nervous system.  At all times the odorant must be handled properly. Continue reading

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