Zero Governors USA PFG300-ZE - Zero Governor for Zero-Pressure Regulation
PFG300-ZE is a regulator from the GOVERNOR series for zero-pressure regulation application, CSA certified to ANSI Z21.18 / CSA 6.3 as a gas appliance pressure regulator for inlet pressure up to 5 psig (345 mbar), with an outlet pressure range from -2″ w.c. to +2″ w.c. (about -5 to +5 mbar). It allows vent-limited, multi-position installation and provides positive dead-end lockup for sizes 1/2″ through 4″. It also features a double diaphragm with an integral vent limiter, an external vent limiter, and a balanced valve design for increased capacity and accuracy.
Pietro Fiorentini lists this model in its “Governors - USA only” range (CSA / ANSI certified). Contact us to confirm availability for your project.
Technical Specifications
Applications
Key Features
Zero-Pressure Regulation
Designed for zero-pressure regulation, with an outlet pressure range of -2″ w.c. to +2″ w.c.
CSA 6.3 / ANSI Z21.18 Certified
Certified as a gas appliance pressure regulator for inlet pressure up to 5 psig.
Double Diaphragm and Vent Limiters
Double diaphragm with an integral vent limiter and an external vent limiter (no vent line required where approved by local codes and standards).
Hydrogen Ready
Suitable for NG-H2 blending.
Downloads
Technical documentation from fiorentini.com
PFG300-ZE Zero Governor - Technical brochure (USA)
PDF - fiorentini.comGOVERNORS PFG300 & PFG400 series - Technical brochure (USA)
PDF - fiorentini.comGOVERNORS North America - Technical (operation, maintenance and warning) manual (USA)
PDF - fiorentini.comCSA Certificate of Compliance 2011806 (Project 80190953)
PDF - fiorentini.comFrequently asked questions
What is Zero Governors USA used for?
Zero Governors USA (PFG300-ZE) regulates to zero pressure, with outlet from -2 to +2 inches w.c. (about -5 to +5 mbar), for appliances and burner supply. It is certified to ANSI Z21.18 / CSA 6.3 as a gas appliance pressure regulator, for inlet up to 5 psig, in sizes from 1/2 to 4 inches.
Which gases and installations does Zero Governors USA suit?
It is listed for natural gas, LPG and other clean non-corrosive gases, for indoor and outdoor installation; the brass vent limiter is removed for outdoor use. An integral filter is available, lock-up is 100% bubble tight, and the operating range is -40 to +65.5 °C. For EN 88-1 projects, see the Zero Governors.
Is Zero Governors USA available for projects outside the USA?
Zero Governors USA is part of the Pietro Fiorentini USA range, certified to CSA / ANSI standards for North American codes. Contact us to confirm availability for your project; for EN 88-1 applications, the Zero Governors are the matching model in the European range.
H2 Ready
Need More Information?
Our technical team is ready to help you select the right governor for your application.