What standard is used to determine the pipe model code? As the title says:
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What standard is used to determine the pipe model code? As the title suggests: Pipes – ERW, LGS, MNPT ends; standards GB/T 3091 Q235B with galvanizing treatment, SH/T 3405; diameter DN25, standard type. Elbows – 90 DEG angle, SR type, welded construction, BW type; standard GB713 Q245R, 100% RT inspection; standard SH/T 3409, diameter DN700, thickness 12 MM. Tees – red color, SCH80 grade, SW type, in accordance with JB 4728 standard; material 06Cr19Ni10. Standard SH/T 3410: DN25x20 swaged nipples. Connections of various types: BLE/PSE, A105 standard, MSS SP-95 standard; dimensions DN50x40, wall thickness from SCH20 to SCH40. Gate valves – BB type, OS&Y design, CL150 pressure class, RF end style; material ASTM A216 WCB. Trim parts – STL type, API 600 standard, diameter DN250. What do all these terms mean? ?
OP, are you trying to change the topic? Look it up for yourself. . . Tubes, ERW, LGS, MNPT ends; GB/T 3091 Q235B galvanized; SH/T 3405; DN25; STD with longitudinal welded seams and threaded NPT ends; material is Q235B galvanized; outer diameter DN25; STD wall thickness series ； 'Elbow, 90 DEG, SR, Welded, BW, GB713 Q245R, 100%RT, SH/T 3409, DN700, 12MM Elbow, 90 degrees, short radius, welded, butt-welded ends, material Q245R, 100%RT inspection, DN700 outer diameter, wall thickness 12mm ； Elbow, RED, SCH80, SW, JB 4728; material 06Cr19Ni10, standard SH/T 3410; diameter: DN25x20 – reducing elbow, wall thickness class SCH80, weld-on type, material 06Cr19Ni10, outer diameter changes from DN25 to DN20 ； Swage Nipple, CON,, BLE/PSE, A105, MSS SP-95, DN50x40, SCH20xSCH40 – reducer (check details); concentric design, grooved weld joint at the larger end and a straight groove at the smaller end; meets standard MSS SP-95 specifications; outer diameter and wall thickness of the larger end are according to SCH.20 series, while those of the smaller end are according to SCH.40 series ； Globe valve, BB, OS&Y, CL150, RF, ASTM A216 WCB; Trim: STL, API 600, DN250. For the globe valve, the BB specification is unknown, as is the OS&Y specification; it has an RF face style, is made of ASTM A216 WCB material, belongs to the API 600 standard series, and has a diameter of DN250.
Take a look at the design specifications for chemical process construction drawings
BB refers to a bolt-connected valve cover, while OS&Y denotes a gate valve with an exposed stem.
Sir, where can I find a comparative explanation for this? ?
This post was last edited by zedc_ly on 2016-12-1 at 13:14. If I remember correctly, it’s in API600, where there are detailed explanations of what each code refers to for gate valves
This post was last edited by zedc_ly on 2016-12-1 at 13:14. If I remember correctly, it’s in API600, where there are detailed explanations of what each code refers to for gate valves
Once you master the English on the single-line diagram, you’ll understand where the standards come from. . .