These requirements cover the following types of anhydrous ammonia and liquefied petroleum gas (LP-Gas) valves for use at temperatures within the range of minus 40??(minus 40?? to 130??(55??:a) Shut-off Valves@b) Excess Flow Valves@c) Back Pressure Check Valves@d) Filler Valves@e) Vapor Return Valves@ andf) Actuated Liquid Withdrawal Excess-Flow Valves.Valves covered by these requirements are for use in systems and facilities covered in the following Standards:a) Safety Requirements for the Storage and Handling of Anhydrous Ammonia@ ANSI/CGA G-2.1 (ANSI K61.1);b) Liquefied Petroleum Gas Code (National Fire Codes@ Vol. 2)@ NFPA 58; andc) Storage and Handling of Liquefied Petroleum Gases at Utility Gas Plants@ NFPA 59.These requirements do not cover shut-off valves of the type commonly referred to as "cylinder valves" used on containers constructed under Department of Transportation (DOT) Specifications.These requirements do not apply to LP-Gas valves for use on containers or in systems for the following:a) Refrigerated storage systems andb) Marine and pipeline terminals@ chemical plants@ natural gas processing plants@ refineries or tank farms@ where "tank farms" do not include storage at industrial locations.These requirements do not apply to valves for anhydrous ammonia for use on containers or in systems for the following:a) Refrigerated storage systems@b) Ammonia manufacturing plants@c) Refrigeration plants where ammonia is used solely as a refrigerant@ andd) Ammonia transportation pipelines.Except for such observations as are required to ascertain performance characteristics@ the assigning of pressure and/or flow capacity ratings is not within the scope of these requirements.A product that contains features@ characteristics@ components@ materials@ or systems new or different from those covered by the requirements in this standard@ and that involves a risk of fire or of electric shock or injury to persons shall be evaluated using appropriate additional component and end-product requirements to maintain the level of safety as originally anticipated by the intent of this standard. A product whose features@ characteristics@ components@ materials@ or systems conflict with specific requirements or provisions of this standard does not comply with this standard. Revision of requirements shall be proposed and adopted in conformance with the methods employed for development@ revision@ and implementation of this standard.
UL 125 BULLETIN-2009 history
1970UL 125-2021 Valves for anhydrous ammonia and LP-gas (other than safety relief)
2020UL 125-2020 Flow Control Valves for Anhydrous Ammonia and LP-Gas
2017UL 125 BULLETIN-2017 UL Standard for Safety Flow Control Valves for Anhydrous Ammonia and LP-Gas (COMMENTS DUE: November 20@ 2017)
2015UL 125 BULLETIN-2015 UL Standard for Safety Flow Control Valves for Anhydrous Ammonia and LP-Gas (COMMENTS DUE: JANUARY 28@ 2015)
2014UL 125 BULLETIN-2014 UL Standard for Safety Flow Control Valves for Anhydrous Ammonia and LP-Gas (COMMENTS DUE: JULY 23@ 2014)
2014UL 125-2014 UL Standard for Safety Flow Control Valves for Anhydrous Ammonia and LP-Gas (Ninth Edition; Reprint with revisions through and including February 18@ 2015)
2013UL 125 BULLETIN-2013 UL Standard for Safety Flow Control Valves for Anhydrous Ammonia and LP-Gas (COMMENTS DUE: AUGUST 12@ 2013)
2011UL 125 BULLETIN-2011 UL Standard for Safety Flow Control Valves for Anhydrous Ammonia and LP-Gas (COMMENTS DUE: SEPTEMBER 11@ 2011)
2010UL 125 BULLETIN-2010 UL Standard for Safety Flow Control Valves for Anhydrous Ammonia and LP-Gas (COMMENTS DUE: OCTOBER 25@ 2010)
2009UL 125 BULLETIN-2009 UL Standard for Safety Flow Control Valves for Anhydrous Ammonia and LP-Gas (COMMENTS DUE: NOVEMBER 13@ 2009)
2009UL 125-2009 UL Standard for Safety Flow Control Valves for Anhydrous Ammonia and LP-Gas (Eighth Edition; Reprint with Revisions through and Including January 28@ 2011)
2008UL 125 BULLETIN-2008 UL Standard for Safety Valves for Anhydrous Ammonia and LP-Gas (Other Than Safety Relief) (COMMENTS DUE: April 21@ 2008)
2007UL 125 BULLETIN-2007 UL Standard for Safety Valves for Anhydrous Ammonia and LP-Gas (Other Than Safety Relief) (COMMENTS DUE: MARCH 12@ 2007)
2007UL 125-2007 Valves for anhydrous ammonia and LP-gas (other than safety relief)
2005UL 125 BULLETINS-2005 UL Standard for Safety Valves for Anhydrous Ammonia and LP-Gas (Other Than Safety Relief) (07/29/2005 (2p); 07/29/2005 (2p); 07/29/2005 (2p); 07/29/2005 (2p); 07/29/2005 (2p))
1997UL 125-1997 Valves for anhydrous ammonia and LP-gas (other than safety relief)
1993UL 125-1993 Valves for anhydrous ammonia and LP-gas (other than safety relief)