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| NTS | not to scale | ||
| ( ) ( ) | Æ 250 | 250 dia | diameter of 250 mm |
| D 25 () | 1) NB25 (mm) 2) NS | 1) nominal bore 2) nominal size | |
| d 25 | 25 OD | outer diameter | |
| d 25 | 25 ID | inner diameter | |
| ( , ) | y, /2 | nom, kgf/cm2 | nominal pressure |
| ( , ) | Sch. number | m. , | |
| PNS | pipe nominal size | ||
| () | . 3 | 3 mm thk | thk = thickness |
| . | set; unit | set ( ) unit ( ) | |
| ( , ) | .; . | Item No. | |
| ( ) | . 112 | Item 112 (112) | |
| Tag Number | - | ||
| 1-14, - | Along 1-14 axes, - rows | . | |
| +2,6 | . +2,6 | At +2.6 m el. | el. = elevation |
| W/screen | with a screen | ||
| W/o screen | without a screen | ||
| 8 8 | 8 . Æ 8 | 8-8 dia hole | (small holes) |
| 8 300 | 8 . Æ 300 | 8 300 dia opening | (large holes) |
| 8 200×300 | 8 200×300 opening | ||
| 6 Æ 12 () Æ 60 | 12 mm drill 6 equally spaced holes on a 60 mm b.c. | b.c. = bolt circle | |
| 0,003 | ang displacement tol. 0.003 mm datum A | ang = angular; tol. = tolerance | |
| Sketch | |||
| ( ) | Legend | ||
| ( ) | Legend | ||
| ( ) | Equipment specification | ||
| TBM to sketch | To be made to sketch | ||
| ( ) | DRG No. | Drawing No. | |
| 25 | Substitution for 25 | ||
| ( ) | dop | Date of publication | |
| ( ) | dow | Date of withdrawal | |
| ( ) | DRWN | Drawn by: | |
| ( ) | . | Originated by | |
| ( ) | CHKD; CHD | Checked by: | |
| , | . | AP'D | Approved by: |
| ( ) | Agreed by: | ||
| ( ) | .; - | Qnty; Qty | Quantity |
| ( ) | .; - | No; no; Nr | 2 no = 2 . 8 Nr = 8 . |
| ( ) | . | Mat. | Material |
| () | IFA | Issued for approval | |
| () | IFP | Issued for procurement | |
| () | IFC | Issued for construction | |
| () | AFC | Approved for construction | |
| . | Examined by | Examination of compliance with regulatory documents | |
| NDC | Notification of Document Change | ||
| DCN | Document Change Notification | ||
| . | Rev. | Revision | |
| . | Sign. | Signature | |
| Date | |||
| 0 | NIL | Negligible | |
| / | I/O | ||
| ditto | Same as above | ||
| HOLD | To be submitted later | ||
| N/R | Not Required | ||
| . | Exist. | Existing | |
| Available | |||
| : ; | NA | Not available | |
| : ; ; | N/A | Not applicable | |
| ( , ) | NC | NORMALLY CLOSED | |
| ( ) | NC = Nc | Normally closed | |
| ( , ) | NO | NORMALLY OPEN | |
| ( ) | NO = No | Normally open | |
| ( ) | Common | ||
| L | Line | ||
| N | Neutral | ||
| #, No, NO | Machine No; Serial No; PART NO; | ||
| .; - | No; no | 2 no = 2 . | |
| Nr | 8 Nr = 8 . | ||
| .; - | Qty | Quantity | |
| MTL | Material | ||
| No Reqd | Number required | ||
| PIPE, STD | Pipe of standard thickness (, ) | ||
| / | PIPE, XSTR | Extra strong pipe (, ) | |
| / | PIPE, XXSTR | Double extra strong pipe (, ) | |
| N/S/R | No special requirements | ||
| OBE | Overtaken by events | ||
| TBO | To be ordered | ||
| Other | |||
| TBD | To be determined | ||
| TBS | To be specified | ||
| TBV | To be verified | ||
| THD | Thread | ||
| (, , , ) | Sectional elevation (vertical, transverse, longitudinal, plan) | ||
| (, , , , ) | View (rear, bottom, front, side, in the direction of the arrow A) | ||
| Exploded view | |||
| Fragmentary view A on an enlarged scale | |||
| IV-IV | Section IV-IV | ||
| ( "a 5 mm /F hexagonal wrench) | A/F | Across Flats | |
| SIM. | Similar | ||
| G/A | General Arrangement | ||
| (, ) | ND | No Drawing | |
| (-) | w/ | With | |
| (-) | w/o | without | |
| c/w | complete with | ||
| (, ) | ga. | gage | |
| INCL. | Inclusive | ||
| TEMP. | Temporary | ||
| M.T.O. | Material take-off | ||
| / | Overall | ||
| DP | Deep | ||
| . | deg. | degree | |
| PCD | Pitch-circle diameter | ||
| LG. | Long | ||
| U.N.O. | Unless noted otherwise | ||
| o/o | Out of | ||
| A.O.S. | As other side | ||
| A.O.E. | As other end | ||
| GR | Grade | ||
| c/c | center to center | ||
| N.T.S. | Not to scale | ||
| O.F.C. | Omitted for clarity | ||
| CL | Center line | ||
| approx. | Approximately | ||
| cont. | Continued | ||
| MISC | Miscellaneous | ||
| . | Ref | Reference | |
| c/o | Consisting of | ||
| TYP. | Typical | ||
| W.T. | Wall thickness | ||
| .. | C.O.G. = C of G | Center of gravity | |
| * | GOST | Russian Federal Standard | |
| * | OST | Industrial standard | |
| * | I | Industrial code | |
| * | SP | Russian Code of practice | |
| * | RD | Russian Guideline | |
| * | SNIP | Construction Code and Regulations | |
| * | SanPin | Sanitary Rules and Standards | |
| * | PUE | RF Electrical Code | |
| - * | SPP | Standard Practices & Procedures | |
| * | 360-78 | Spec. TU 360-78 | Spec. = Specification |
| CFR | Code of Federal Regulations | ||
| DOD-STD | Department of Defense Standard | ||
| MIL-STD | Military Standard | ||
| MIL-SPEC | Military Specifications | ||
| MIL-HDBK | Military Handbook |
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No ) , ) ; )
| Customer Order No | |
| Dwg No = Drawing number | |
| Item No | ; ( ) |
| Job No | ( ) |
| Part No | |
| Ref. No = Reference number | ( ) |
| Sch. No = Schedule number | ( , , ) |
| Tag No | a ( ); ( ) |
| QUATATION N0 | |
| ! | |
| No Reqd | |
| 2 = 2 Nr | 2 . |
| Approximate quantities for 8 n. buildings | |
| 1 n. new reservoir |
