Model 143 Sizing Tool
Enter your specifications to determine the best Model 143 regulator for your application. It returns the regulator configuration, part number, downloadable summary and sizing tables.
Regulator Sizing Tools / Model 143
Service regulator for residential meter sets and small commercial and industrial loads. Available with an internal relief valve or a low-pressure cut-off. New orifices coming soon!
Note: The tool cannot size an internal relief valve above 2 psi set point. If you ask for over-pressure protection with a higher outlet, the tool will report that it cannot size the application. Without over-pressure protection the full range up to 6 psi is available.
Not sure this is the right model? The General Sizing Tool compares every USG regulator and recommends one for your conditions.
Preliminary selection only. This tool provides a starting point based on the values entered and does not account for every variable in a field installation — including inlet pressure variation, ambient temperature, elevation, piping losses, venting requirements, over-pressure protection strategy, and applicable codes. Final regulator selection, installation and setting must be performed by qualified personnel in accordance with the product installation and maintenance manual and all applicable federal, state and local codes. Improper regulator selection or installation can result in over-pressurization, property damage, serious injury or death. Contact Holland Supply Company to review any selection before ordering.