Transcription of Model 121 Regulators - Tri-State Meter
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Model 121 Regulators - Tri-State Meter
*This document replaces RM-1328-R10IN-G-REG-13-28-1112-02-A*Mode l 121 RegulatorsInstallation and Maintenance InstructionsIntroductionThe Model 121 Regulator represents a combination of capacity, performance and value Streamlined body passages provide large capacity. An external control line is required from lower case to control piping. The 121 has a fast speed of response, yet is stable in operation. Soft seats assure positive tight shutoff. Orifi ces are replaceable. Springs are color coded. It is also available as a zero governor or atmospheric regulator, a relief valve or backpressure regulator, and a vacuum regulator or vacuum Examine the regulator for shipping Check nameplate data. Be sure regulator conforms with what was Inside of regulator and piping must be clean and free of dirt. Remove all dirt and debris before installing regulator. Failure to remove dirt/debris could result in regulator damage or Remove all shipping screens and covers from the regulator.
*This document replaces RM-1328-R10 IN-G-REG-13-28-1112-02-A* Model 121 Regulators Installation and Maintenance Instructions Introduction The Model 121 Regulator represents a …
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