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Saigon M&C Tower Project Method Statement For Fire Stopping Page 2 Installation Mechanical Piping: A. PPR Pipes & Fittings Installation. B. uPVC Pipes & Fittings Installation. C. Cast Iron Pipes & Fittings Installation. D. Ductile Iron Pipes & Fittings Installation. E. Steel Pipes & Fittings Installation. F. Copper Pipes Installation. - 12-03-09 FIRST ISSUE C.T.P -.-.- J.R.P L.Q.K

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Page 1: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 2

Installation Mechanical Piping:

A. PPR Pipes & Fittings Installation.

B. uPVC Pipes & Fittings Installation.

C. Cast Iron Pipes & Fittings Installation.

D. Ductile Iron Pipes & Fittings Installation.

E. Steel Pipes & Fittings Installation.

F. Copper Pipes Installation.

- 12-03-09 FIRST ISSUE C.T.P -.-.- J.R.P L.Q.K

Page 2: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 3

General: Items: - The Method Statement For Mechanical Piping System Installation

Work.

Aim: The objectives is to describe Plumping works associated with installation of

internal pipes in compliance with the contract specification, approved shop

drawings, combine and coordinated all services and structural penetration shop

drawings.

Scope of Works: This method statement covers work related to all Mechanical works of the

SAIGON M&C TOWER Project.

Installation:

Page 3: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 4

A. PPR Pipes & Fittings Installation: 1. Adhesive Bonding Joint For PP-R Pipes and Fititng

a. Cutting of the pipe

- Mark pipe according to the necessary length.

- Cutting the pipe follow the marking. Cut the pipe at right angles to the pipe

axis.

Cutting of the pipe

b. Heating of pipe and fitting

- Push the end of the pipe up to the welding depth into the welding tool.

- After the stipulated heating times quickly remove pipe and fitting from the

welding tool (See table 1).

- Join them immediately until the marked welding depth is covered by the PP-R

bead from the fitting.

Heating-up of the pipe and fitting

Page 4: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 5

Joining and fixing

Pipe and fitting are aligning

Table1: The fusion data.

Pipe external - d

(mm)

Welding depth

(mm)

Heating time

(sec)

Welding time

(sec)

Cooling time

(min)

16 13 8 4 2

20 14 8 4 2

25 15 11 4 2

32 16.5 12 6 4

40 18 18 6 4

50 20 27 6 4

63 24 36 8 6

75 26 45 8 8

90 29 60 8 8

110 32.5 75 10 8

125 40 90 10 8

Page 5: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 6

c. Weld in saddles

- Weld in saddles are available for pipe outer diameter of 40, 50, 63, 75, 90,

110, 125, 160, 200 and 250 mm. The maximum sensor well diameter is

specified in the following table 2.

- Weld in saddles are used for:

• Branch connections in existing installations.

• The substitution of a tee.

• Branch connections in risers.

• Sensor wells, etc.

Weld-in saddle detail.

- Drill through the pipe wall at the intended outlet point by using the drill.

- Insert the heating tool on the concave side of the weld-in saddle tool into the

hole drilled in the pipe wall until the tool is completely in contact with the outer

wall of the pipe

- Fusing the weld-in saddle with the pipe the outer surface and the pipe inner

wall the connection reaches highest stability.

Drilling through the pipe wall

Page 6: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 7

Table2: The saddles data.

Page 7: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 8

The welding tool is inserted into the pipe wall … … heating-up of the elements

Joining Weld-in saddle finished

d. Butt welding

Pipes and fittings are fused, as explained below by butt welding ( pipe

dimension 160, 200, and 250mm).

- Cut pipe into required length

- Plastic pipes are aligned and fixed by means of the clamping elements

- Push The pipes onto the heating place with a defined adjusting pressure.

- When heating time has expired, divide the machine slide, remove heating

element quickly and join the pipes (by putting both parts of the slide together).

- The welded connection can be unclamped the welding process is finished.

The parts to be welded are fixed and aligned respectively

Page 8: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 9

Positioning of heating element

Divide the machine slide, remove heating element.

Join the pipe, cool down under pressure.

Page 9: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 10

e. Repair

- Damaged pipes may be repaired by mean of fusion.

- In addition to this the offers the possibility of the pipe repair stick.

- The installation: same step for weld-in saddle.

Heat-up Install repair stick and cutting

2. Pipe installation

a. Exposed pipes

Hanger rod

Anchor

Concrete Slab

PP-R Pipe

Sleeve

Wall

Pipe clamp

Detail of exposed horizontal PP-R pipe installation

Page 10: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 11

Hanger rod

Concrete

PP-R Pipe

Sleeve

Wall

Anchor

PP-R Pipe

SleeveSupport

Slab

Pipe clamp

ConcreteSlab

Detail of exposed vertical PP-R pipe installation

Picture for illustrating of PP-R Pipes installation

Page 11: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 12

b. Concealed pipes

- Mark location of pipes and outlet on walls according to approved shop drawings.

- After layout has been established, marking the pipes route on the brick wall with

two marked lines according to installed pipes size (Follow table 3).

Table 3: Wall Opening Size for PP-R Pipes

Item Pipe size (d) mm

Opening (b) mm

Depth (t) mm

1 20 60 35 2 25 60 35 3 32 100 45 4 40 100 50 5 50 150 65 6 60 150 80

Cutting line

Backfill

PP-R Pipeoutlet

PP-R Pipe

(by other)

PP-R Pipeinlet

End cap(cover)

InletPP-R Pipe

PP-R Pipe

Cutting line

Detail of concealed PP-R pipe installation.

Page 12: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 13

PP-R Pipe

Cutting line

Mortar hole pipe

Outlet and End cap

Picture for illustrating of concealed PP-R pipe installation.

B. uPVC Pipes & Fittings Installation:

1. Adhesive Bonding Joint For uPVC Pipes and Fititng

Stopper

PVC socket PVC pipe

Zero point

PVC socket PVC pipe

Swell layer by Adhesive(0.1-0.2 mm)

Detail of Installation uPVC fitting

Page 13: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 14

2. Pipe installation

a. Exposed pipes:

uPVC Pipe

Hanger rod

Anchor

Concrete Slab

Sleeve

Wall

Pipe clampuPVC Pipe

Sleeve

U-bolt

Fitting

Detail of exposed uPVC pipe installation

uPVC Pipe

Fitting

Pipe clamp

uPVC pipe

Support

Rubber rope

Pipe strap

Picture for illustrating of exposed uPVC pipes installation

Page 14: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 15

b. Concealed pipes:

Table 4: Wall Opening Following Pipe Size Item Pipe size (d) Opening (b) mm Depth (t) mm

1 32A 100 45 2 40A 100 50 3 50A 150 65 4 80A 200 100 5 100A 200 120

Cutting line

Backfill

uPVC Pipe

(by other)

End cap(cover)

uPVC Pipe

Cutting line

Concrete slab

Wall

& Fitting

Drain Drain

Concrete slab

Wall

Detail for Concealed of uPVC pipes

End cap uPVC pipe

Mortar Hold pipe

Picture for illustrating

Page 15: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 16

C. Cast Iron Pipes and Fittings Installation

1. Cutting of Pipe

- All cutting must be done in warehouse or in designated areas at each floor. All

cutting must not be done at work area.

- Cutting angle must be right angle.

- Pipe shall be cut by power hacksaw, circular cutting machine with abrasive wheel,

hand hacksaw or square end sawing vice only.

- Inside edges shall be reamed smooth by reamer or sand paper.

Example for Cutting pipes

2. Coupling Joint

a. Pipe with Pipe

1. Push the supplied complete connector on to the pipe

end right up to the middle spacing ring of the seal.

2. Turn over the open half of the sealing collar.

Page 16: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 17

3. Install the next pipe or formed part flush with the spacing

ring and fold back the turned over half of the collar.

4. Place the clamping sleeve around the collar.

5. Alternatively tighten the two clamping screw uniformly

and hard tight. The guiding and threaded plates of the

clamp must come together parallet to avoid any

deformations.

Page 17: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 18

b. Pipe with Fitting

1. Push the supplied complete connector on to the pipe

end right up to the middle spacing ring of the seal.

2. Push the pipe end from the other end into the connector.

3. Firmly tighten the hexagon socket screw with a socket

spanner, hard ratchet or impact screwdriver, if possible to the

point where the two clamping jaws come together.

Picture for illustrating install complete

Page 18: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 19

D. Ductile Iron Pipes and Fittings Installation

D.I PipeFlange

D.I Pipe

Bolt and Nut

Detail Flange joint of D.I Pipe with Pipe

D.I Fittng

FlangeD.I Pipe

Bolt and Nut

Rubber rope

Detail Flange joint of D.I Pipe with Fitting

Flange

D.I Pipe

Hanger rod

Anchor

Concrete Slab

Sleeve

D.I Pipe

D.I Fittng

U-bolt

Angle Steel Detail for Installation D.I pipe

.

Some picture for illstrating

Page 19: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 20

E. Steel Pipes and Fittings Installation 1. Screw Joint: For pipes size less than 65A

Useful thread(see note 1)

A (see table 5)Useful threadWashout

Threads

End face of internallythread parts

Useful thread(see note 1)

A (see table 5)

Note 1: The useful thread of the internally threaded part is to be not less than 80% of the length.

Detail of Screw

Table 5: Size of Screw (BS 21:1985) Minimum lengths A in turns of thread (see note) for:

Thread size designation

Internal thread with extreme plus tolerance (maximum diameter)

Internal thread of basic size (gauge diameter)

Internal thread with extreme minus tolerance

(minimum diameter)

1/16

1/8

1/4

3/8

1/2

3/4

1

2

mm 8⅛

(7.4)

8⅛ (7.4)

8¼ (11.0)

8½ (11.4)

8¼ (15.0)

9 (16.3)

8¼ (19.0)

9¼ (21.4)

9¼ (21.4)

11⅛ (25.7)

mm 6⅞

(6.2)

6⅞

(6.2)

7 (9.3)

7¼ (9.7)

7 (12.7)

7¾ (14.1)

7 (16.2)

8 (18.5)

8 (18.5)

9⅞ (22.8)

mm 5⅝ (5.1)

5⅝

(5.1)

5¾ (7.7)

6 (8.0)

5¾ (10.4)

6½ (11.7)

5¾ (13.3)

6¾ (15.6)

6¾ (15.6)

8⅝ (19.9)

Page 20: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 21

Hanger rod

Anchor

Concrete Slab

Pipe clamp

Steel pipe

Steel fitting Detail installation for thread steel pipe and fitting

2. Welding Joint: For pipes size 65A and over

Bevel angle

Pipe thickness

Distance between Pipes Detail for Chamfer of groove weld

Weld point

Pipe thickness

Details Finish of welding seam

Flange

Weld point

Steel Pipe1mm shorter than X

t (mm)

X: (mm)

Pipe thickness

More than t

Details of welding Joint for Flange

Page 21: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 22

Welding

Hanger rod

Anchor

Concrete Slab

Sleeve

Steel Pipe

Steel Fittng

U-bolt

Angle Steel Steel Pipe

point

Detail Installation welding pipes

3. Welding joint for branch pipes: For pipe size less than 65A.

Table 6. Saddle fitting connection combination

Main pipe diameter Ø (mm) Branch pipe diameter Ø (mm) 40 50 65 80 100 125 150 Hole size Ø (mm)

15 27 20 33 25 40 32 48 40 54 50 o 66

o: to limit used : to allow used

Hole on pipe

1. Making and Cut hole 2. Insert saddle and Spot weld

Saddle fitting

3. Welding for certain

Main pipe

Branch pipe

Saddle fitting

Spot weld

4. Insert branch pipe by screw

Main pipe

Branch pipe

Main pipe

Main pipe

Seam weld

(see table 6)

Detail of welding joint for branch pipe.

Page 22: Ms for-mechanical-piping-system-installation-work

Saigon M&C Tower Project Method Statement For Fire Stopping

Page 23

F. Copper Pipes and Fittings Installation

1. Application of Flux and Insert

Flux must apply only joint areaToo much Flux cause pipes to corrosion

No applicaion area of FluxD = 8 - 15 mm: about 3 mmD = 5/8B, 20 - 32 mm: about 5 mm

Copper pipe Copper pipe

Detail for Application of Flux

2. Application of Solder

Table 7. Necessary Length of Solder

Pipe Size 8 10 15 5/8B 20 25 32

Necessary Length (mm) 6 8 13 22 30 60 90

Maximum Length (mm) 8 12 19 32 42 82 123

* Diameter of solder is 2mm. If other diameter is used, Change the length in

accordance with this table.

Copper pipe Copper pipe

Solder

Flame

Solder must be melted by the heat of surface.Apply solder to opposite side of heated position.

Detail for Application of Solder