1974
UMAC Introduces the Donkin Flow Limitor®, the first spring loaded EFV to the natural gas utility industry
1975
UMAC fabricates the first Steel to Plastic EFV for a gas utility in Ohio
1976
UMAC prefabricates the first Plastic to Plastic EFV for a gas utility in Massachusetts
1979
UMAC introduces the first Low Pressure Gravity Ball Style EFV to the natural gas industry
1988
UMAC introduces the first All Plastic High Capacity EFV in response to a gas utility customer in New York that wants to protect dual natural gas service lines
1990
UMAC introduces a Medium Capacity EFV to meet a Higher Capacity Single Residential meter demand for a gas utility customer in Ohio
1993
UMAC introduces the first commercially available ½" CTS Stick EFV in response to a gas industry demand for same size in-line ½"CTS service line applications
1994
UMAC introduces the first EFV built into the Stiffeners of Mechanical Couplings used to join plastic pipe service lines
1996
UMAC introduces the first Residential EFV for installation in customer owned fuel gas piping systems in California
2000
UMAC introduces the most Comprehensive Range of EFVs for Residential and Commercial applications in sizes from ½" CTS to 2" IPS
2002
UMAC is first to develop an EFV for Live Insertion into Steel services from the meter set for a gas utility in Canada
2006
UMAC develops the first No-hole EFV for Live Insertion from the meter set into PE piping up to 150 feet in length for gas utility in New Jersey
2009
UMAC Excess Flow Valves joined the family of EFVs available from GasBreaker, Inc.
Today
The UMAC EFVs long track record of field service in the gas industry is
unparalleled. GasBreaker, Inc. continues to lead the way in assisting the
gas utility industry in meeting the demanding needs for service line
applications with UMAC EFVs.