Fugitive Emissions Testing – Valve Testing
United Valve has been performing fugitive emissions testing of valves for over 15 years. Our first tests were custom-tailored, primarily for end-users, to help rectify specific FE leakage problems. We perform a variety of tests in accordance with the standardized API 622, API 624, API 641 FE, and ISO 15848 documents.
In addition to utilizing multiple test machines for testing rising stem, check and quarter-turn valves, we often create special fixtures for the FE testing of unique valves and flow equipment. Our capabilities include testing with helium at all temperatures, methane testing up to 750o F, and hydrogen testing at ambient temperatures. Our FE valve testing equipment inventory also includes fixtures and equipment for packing verification per API 622.
Instrumental in the Creation of API Testing Standards
United Valve was an active participant in the creation of all of API’s fugitive emissions standards, and our engineering testing department continues to help valve manufacturers reduce fugitive emissions and make the environment cleaner.
API 622
Type Testing of Process Valve Packing for Fugitive Emissions
This standard specifies the requirements for comparative testing of valve stem packing for process applications where fugitive emissions are a consideration. Packing(s) shall be suitable for use at service temperatures -29°C to 427°C (-20°F to 800°F).
Factors affecting fugitive emissions performance that are considered by this standard include temperature, pressure, thermal cycling, mechanical cycling, and corrosion.
API 624
Type Testing of Rising Stem Valves Equipped with Graphite Packing for Fugitive Emissions
This standard specifies the requirements and acceptance criteria (100 ppmv) for fugitive emission type testing of rising and rising-rotating stem valves equipped with packing previously tested in accordance with API 622. Packing shall be suitable for use at service temperatures –29 °C to 538 °C (–20 °F to 1000 °F). The type testing requirements are based upon elements of EPA Method 21.
Valves larger than NPS 24 or valves greater than class 1500 are outside the scope of this standard.
API 641
Type Testing of Quarter-turn Valves for Fugitive Emissions
This standard specifies the requirements and acceptance criteria for fugitive emission type testing of quarter-turn valves. Valves larger than NPS 60 and valves greater than ASME B16.34 class 1500 are outside the scope of this standard. Valves with a pressure rating at ambient temperature less than 6.89 barg (100 psig) are outside the scope of this standard.
For all valves rated greater than or equal to 400 °C (750 °F), an additional high temperature test may be performed in accordance with Annex C or when specified by the purchaser.
ISO 15848- 1 & 2
Industrial Valves – Measurement, Test and Qualification Procedures for Fugitive Emissions
ISO 15848-1 concerns a classification system and qualification procedures for type testing of valves. It specifies testing procedures for evaluation of external leakage of valve stem seals (or shaft) and body joints of isolating valves and control valves intended for application in volatile air pollutants and hazardous fluids.
ISO 15848-2 is the companion production test document for valves that have already been FE tested in accordance with accepted type testing standards such as 15848-1.
Unmatched Experience and Industrial Valve Testing Knowledge
Rely on United Valve for all your fugitive emissions testing needs. As key contributors to the creation of industry testing standards, we bring unparalleled expertise to the table. Schedule your industrial valve testing service.
