A3187S & A3197S Installation

Field Topics are intended to provide useful information to the network of authorized LP-Gas and Anhydrous Ammonia distributors regarding the proper use of RegO® products.

Warning Bulletins covering many of the hazards involved are available from RegO for more detailed information. These bulletins can be found in our L-500, L-102 and NH3-102 catalogs. Neither the Field Topic or the Warning Bulletins are intended to conflict with federal, state, or local ordinances and/or regulations, which should be observed at all times. This information also is not intended to be a substitute for or to supplement any training in the safe handling and use of propane and related equipment, as required by any applicable law. By providing this material, ECI assumes no responsibility for providing any such training. Only individuals properly trained in the safe handling and use of propane and related equipment should be permitted to do so, and by providing this information, ECI does not assume responsibility for providing such training

For more information on LP Gas system requirements, refer to Liquefied Petroleum Gas Code (NFPA 58), National Fuel Gas Code (NFPA 54), National Propane Gas Association Safety Handbook, the RegO LP-Gas Serviceman’s Manual L-545, RegO catalogs L-500/L-102/NH3-102, ANSI K61.1 Safety Requirements for Storage and Handling of Anhydrous Ammonia, as well as any applicable local codes and ordinances.

A3187S & A3197S Installation 

The A3187S & A3197S Back Check Valves are designed to provide protection of a container opening when desired flow is always into the vessel. They may be used in line applications where flow must be limited to one direction. Installation can be done in either a vertical or horizonal position. These valves are designed with a synthetic rubber seat disc for positive seals.

When installing in a container application: the female pipe thread connection on the outlet connection can be used to fit a standpipe. The Female and male pipe thread can be used for connection on the inlet side. Standpipe application will allow for a vapor fill connection when installed at the bottom of the container.

When installing in a pipeline application: the male pipe thread on the inlet and outlet connection must be used. The internal (female) pipe thread cannot be used and will not maintain a leak tight seal in pipeline service. The female internal pipe threads are ONLY FOR STANDPIPE INSTALLATION INSIDE A CONTAINER.

Should you have any questions or concern, please contact Cody Reeves.

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Field Topic Conductor :

​​Cody Reeves – LPG Tech. Services Manager

10+ years as a Propane Service Technician including installation and service of gas equipment.​​

State of CT Licensed Gas & Oil contractor.​​

Graduated from a Technical high school majoring in HVAC