加热炉管尺寸标准

[中文适用范围]： A。该标准制定了推荐用于所有炼油厂服务的加热器管的标准尺寸和长度。 b.壁厚不属于本标准的范围。 C。此处不包括公差。尺寸和长度的公差应在采购订单中注明。这可以通过参考 ASTM* 或其他适用规范来完成。 * 美国材料测试协会@ 1916 Race St.@ Philadelphia 3@ Pa。 [外文原描述]： The purpose of this standard is to achieve a more uniform design of fired heaters in oil refineries, increased interchangeability of heater tube headers, and a corresponding reduction in spare-part inventory. The standard is derived from the knowledge and experience of petroleum refiners, heater designers, and tube headrer manufactures.