Last updateTue, 24 Nov 2015 6pm



Piping Codes and Valve Standards

15 sum pipingAs with every intended use for valves, piping carries its own set of standards that valve companies and users need to understand. This article provides an overview of the codes (it does not necessarily cover detailed requirements for specific services).

The Case for a Severe Service Standard

The Case for a Severe Service StandardAt this time, no national standards exist that clearly define severe service valves (SSVs) or set them apart from general purpose valves.

Most experts agree that SSVs are identified by applications, and that these applications challenge the valve’s ability to provide a minimum acceptable level of performance over a minimum acceptable duration. All valve design functions require basic information, but for those valves destined for severe service, it is imperative to have a comprehensive understanding of the factors that affect their in-service performance. A recognized definition would benefit users through improved process performance and increased profitability, safety and environmental protection.

Important Change Coming to Key Valve Export Category

Important Change Coming to Key Valve Export CategoryThe U.S. valve industry has been hit very hard over the last seven years by export control penalties. Over 50 companies in the fluid handling industry, including numerous valve companies of all sizes, have paid penalties ranging from $250 million to tens of thousands of dollars in connection with violations of export controls. Companies have seen their names publicized in connection with violations of U.S. law and their reputations before key U.S. government agencies have been severely damaged. A number of those penalty cases arose because companies were not prepared for a series of past changes in the Export Administration Regulations (EAR), which are implemented by the U.S. Department of Commerce’s Bureau of Industry and Security (BIS). Now, a new set of changes is coming to export controls on valves that can be used to handle chemicals. Companies have a chance to prepare for the change in rules and avoid violations.

New API Standard for Globe Valves

14 spr standards globeWhile the American Petroleum Institute (API) and other organizations published a variety of valve standards covering gate, ball, check, butterfly and plug valves for decades, the first for globe valves came out in 2013. It is API 623, Steel Globe Valves—Flanged and Butt-welding Ends, Bolted Bonnets. The size range covered by the valves in this standard is 2-24 inches, and the standard covers ANSI classes 150 through 2500.

Pressure Seal Standards Update

VM STANDARDS GRAPHICThe EPA has been reducing the allowable fugitive emissions on valves in the last few years. Due to the upcoming emission legislation, most refineries, chemical and process industry plants will have to monitor their emissions more closely. Additionally, new industry standards, both API and ISO, are being published or revised for type testing of valves to improve emissions in new valves.



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