BS EN 14870-3-2006 石油和天然气工业.管道运输系统的吸入管弯头、配件和法兰.法兰

标准号：BS EN 14870-3-2006
中文标准名称：石油和天然气工业.管道运输系统的吸入管弯头、配件和法兰.法兰
英文标准名称：Petroleum and natural gas industries - Induction bends, fittings and flanges for pipeline transportation systems - Flanges
标准类型：E98
发布日期：2006/3/31 12:00:00
实施日期：2006/3/31 12:00:00
中国标准分类号：E98
国际标准分类号：23.040.60;75.200
引用标准：ISO 148-1;ISO 377;ISO 2566-1;ISO 3183-1;ISO 3183-2
适用范围：This part of EN 14870 applies to weldneck and blind flanges (full face, raised face, and RTJ groove) as well asanchor, swivel-ring flanges and orifice flanges.This part of EN 14870 specifies the technical requirements for carbon steel and low-alloy steel forged flangesfor use in pipeline transportation systems for the petroleum and natural gas industries as defined inISO 13623.This part of EN 14870 designates those categories of flanges that meet the industry's need to matchISO 3183 pipe. These flanges are for normal and low-temperature service and include supplementaryrequirements where required for sour service.Materials for, or the attachment of, factory-welded extensions, bolting materials, gaskets, slip-on flanges orflanged fittings are not covered by this part of EN 14870.This part of EN 14870 is not applicable to integrally cast or forged flanges for valves, pumps or otherequipment.This part of EN 14870 does not cover the selection of the flange category or pressure class. Sizes andpressure classes listed in ISO 7005-1 and applicable to this part of EN 14870 are as follows:⎯ DN 10 (NPS 1/2) to DN 1500 (NPS 60);⎯ PN 20 (class 150), PN 50 (class 300), PN 100 (class 600), PN 150 (class 900), PN 250 (class 1500),PN 420 (class 2500).On-land supply systems used by the gas supply industry are excluded from the scope of this document.