Padding&erection Procedure MRU

Doc. No.
: PL5044-LP001
ERECTION PROCEDURE
Rev. No. : 0
1. General
This specification covers the minimum requirements for the equipment
installation at the site.
2. Foundation
Prior to the installation work, the foundation shall be checked for the following point:
1) Dimension, position (center marking) and height (level marking) shall conform to
the relevant drawings.
2) On the foundation concrete, porous state and laitance shall not exit.
3) Existence of damage and rust of threaded parts of buried anchor bolts shall be
checked and their size shall conform to the drawings and specification.
4) Anchor bolts shall be cleaned and their size shall conform to the drawing.
5) Foreign matters shall be removed on the foundation.
6) Level if liners on chipped surface shall be checked.
7) Chipped surface shall be good for grout mortar without cracking, peeling off, etc.
3. Liners
1) The liner plates shall be absorbed load 30 Kg/cm2
2) The following liner plates made of carbon steel shall be used:
Erection Q’ty of Q’ty of Design Size of

Actual Size of Liner
Tank No. Weight Anchor Liner Liner plate
plate
(Kg) bolt plate (mm.)
2R-204 2210 8 8 50x80 PL 6t x 75L x 100w
2R-205 4255 12 12 50x80 PL 6t x 75L x 100w
Remark:
Area of Liner Plate = (Erection Weight / Q’ty of Liner Plate * Absorbed Load)
3) Setting of the liner plates shall be carried out with mortar cement type I (ASME C-
150) on one side of anchor bolt and leave in more than 3 days for curing.
4) The mortar cement shall be applied non-shrink cement.
Doc. No. : PL5044-LP001
ERECTION PROCEDURE
Rev. No. : 0
4. Check for level

1) The Level of padding shall be checked at the same elevation with in tolerance  3
mm. and two adjacent level  6 mm..
5. Installation, Centering and Alignment
1) Installation the vessel shall be followed lifting plan for 2R-204 and 2R-205 (see
attachment 1 to 5)
2) centering and alignment of vessel shall generally be carried out in
accordance with Table 1 and the following order ;
- Place the equipment on the liners and set anchor bolts
- Adjust the equipment at the accurate position
- Carry out the final centering/alignment and verticality by alignment plates.

Doc. No. : PL5044-LP001
ERECTION PROCEDURE
Rev. No. : 0
- Grout the base of the vessel
3) Horizontally and perpendicularity of installed equipment shall be within
the allowance specification in table 1 item B.
Table 1 TOLERANCE OF EQUIPMENT INSTALLATION
Equipment Class
Item A B C D
Location ± 10 mm. ± 10 mm. ± 6 mm. ± 3 mm.
Elevation ± 10 mm. ± 6 mm. ± 6 mm. ± 3 mm.
Level
Centering 1 mm. /m. 1 mm. /m. 0.1 mm/m 0.05 mm. /m
Alignment 5 mm. Max.
Vertical
Centering 2 mm. /m. 1 mm. /m. - 0.05 mm. /m
Alignment 30 mm.Max. 20 mm.Max.
6. Grouting
The following points shall be taken into consideration in grouting between the
base of the equipment and its foundation ;
1) Concrete surface for grouting shall be confirmed the suitable coarse surface by
chipping. The surface shall be clean without grease, oil and dirt.
2) Water shall be applied for surface soaking; mixing and curing cement based grout
3) In case drain pipe, oil exhaust pipe, etc. are buried in the grouting mortar,
necessary countermeasures shall be taken into consideration not to clog
up the pipes.
Doc. No. : PL5044-LP001
ERECTION PROCEDURE
Rev. No. : 0
4) Concrete surfaces on which cement – based grout is to be performed shall be
thoroughly soaked with water for 24 hours. Just before grouting, the water shall be
removed leaving only a dump film.
5) The mixing ratio of grouting mortar shall be generally in accordance with
Table 2.
Table 2 Mortar Composition
Ordinary Cement Non-Shrinkage Cement
Non-shrink Agent - 1
Ordinary Cement 1 1
Sand 2 1
Gravel - -
Water (wt. %/cement) 40 - 50 40 – 50
Period of hardening more than 7 days more than 3 days
Machinery (e.g. Pump, Compressor, Special
Blower etc.) And general use
Use.
Note: The above figures are weight ratios against cement. The gravel ratio shall be if
necessary, instructed later on.

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Doc. No.

Erection Q’ty of Q’ty of Design Size of

4. Check for level

5. Installation, Centering and Alignment

2) centering and alignment of vessel shall generally be carried out in

accordance with Table 1 and the following order ;

- Place the equipment on the liners and set anchor bolts

- Adjust the equipment at the accurate position

- Carry out the final centering/alignment and verticality by alignment plates.

- Grout the base of the vessel

3) Horizontally and perpendicularity of installed equipment shall be within

the allowance specification in table 1 item B.

Table 1 TOLERANCE OF EQUIPMENT INSTALLATION

Location ± 10 mm. ± 10 mm. ± 6 mm. ± 3 mm.

Elevation ± 10 mm. ± 6 mm. ± 6 mm. ± 3 mm.

Centering 1 mm. /m. 1 mm. /m. 0.1 mm/m 0.05 mm. /m

Alignment 5 mm. Max.

Centering 2 mm. /m. 1 mm. /m. - 0.05 mm. /m

Alignment 30 mm.Max. 20 mm.Max.

base of the equipment and its foundation ;

necessary countermeasures shall be taken into consideration not to clog

4) Concrete surfaces on which cement – based grout is to be performed shall be

removed leaving only a dump film.

5) The mixing ratio of grouting mortar shall be generally in accordance with

Table 2 Mortar Composition

Ordinary Cement Non-Shrinkage Cement

Water (wt. %/cement) 40 - 50 40 – 50

Period of hardening more than 7 days more than 3 days

Machinery (e.g. Pump, Compressor, Special

Blower etc.) And general use

necessary, instructed later on.

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