国外对卫生级不锈钢管产品的精度要求可以达到微米
1. SS-tubes:管子
ASTM A270 TP316L bead removed, Laser welded internally electro polished equal to or better than 0.5 µm Ra & externally polished to 1.6µm Ra with minimum thickness of 1.65 mm including, orbital welding, pressure testing, passivation, etc., duly installed. Pipe support clamps in SS 304.
ASTM A270 TP316L 除缝，激光焊焊缝，内表面电抛光，等于或优于0.5 µm Ra & 外表面抛光达1.6µm Ra，最小壁厚 1.65 mm，包括适当安装轨道焊接，压力试验，钝化处理等，管支架夹为SS304
15 NB - 13 m
25.40 MM OD - 1 m
38.10 MM OD - 13 m
63.50 MM OD - 1 m
2. Elbow:弯头
ASTM A270 TP316L Long radius R=1.5D, ,Laser welded bead removed, internally electro polished equal to or better than 0.5 µm Ra & externally polished to 1.6µm Ra (Butt welded).
ASTM A270 TP316L 长半径R=1.5D 激光焊焊缝除缝，内表面电抛光，等于或优于0.5 µm Ra & 外表面抛光达1.6µm Ra，最小壁厚 1.65 mm（对接焊接）
15 NB - 5 units
25.40 MM OD - 3 units
38.10 MM OD - 10 units
3. Equal Tee/ UnEqual Tee等径三通/异径三通
ASTM A270 TP316L internally electro polished equal to or better than 0.5 µm Ra & externally polished to 1.6µm Ra , Sanitary Tee, 16 SWG
ASTM A270 TP316L 长半径R=1.5D 激光焊焊缝除缝，内表面电抛光，等于或优于0.5 µm Ra & 外表面抛光达1.6µm Ra，最小壁厚 1.65 mm，双承丁字管，16 SWG
15 X15 NB - 1 unit
25.40 X 25.4 MM OD - 2 units
4. ECC RED.偏心异径管
ASTM A270 TP316L internally electro polished equal to or better than 0.5 µm Ra & externally polished to 1.6µm Ra , Sanitary Tee, 16 SWG
ASTM A270 TP316L 长半径R=1.5D 激光焊焊缝除缝，内表面电抛光，等于或优于0.5 µm Ra & 外表面抛光达1.6µm Ra，最小壁厚 1.65 mm，双承丁字管，16 SWG
25.40 X 15 MM OD - 1 unit
63.5 X 25.4 MM OD - 1 unit
5. TC liner:TC衬垫
In SS 316 L Electro polished, Sanitary Construction
SS 316 L，电抛光，洁具施工
15 NB - 2 units
38.10 MM OD - 6 units
6. TC clamp夹钳 in SS 304:
Heavy duty clamp from Bar stock, 2 piece design with
metal wing nut ;Externally polished to 1.6µm Ra
手动式强力管束棒形钢材，两个为金属翼形螺帽设计，外表面抛光达1.6µm Ra
15 NB - 2 units
25.40 MM OD - 6 units
7. TC Gasket:
4 MM O ring EPDM encapsulated with Teflon (food grade),steam resistant, Shall comply to USP Class VI/FDA Chapter 1,Title 21 Para177.2600
4mmO形密封圈EPDM用 [高分子] 聚四氟乙烯（食品级）密封，耐蒸汽，遵循USP级VI/FDA第一章 第21条177.2600帕拉
15 NB - 2 units
25.40 MM OD - 6 units
All pipes and fitting shall be supplied with ASME BPE certificate and follow the same codes and standards
所有管子和管件都提供ASME SPE证书，并依照相同规范和标准。
