8/16/2019 SB notes

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Project:  LR Zero Liqu id Discharge (ZLD) ProjectDocument Title: PIPING MATERIAL SPECIFICATIONCompany Doc. No: 258-90-90-MP-TS-NA-009000Contractor Doc.No. MQAE626-K0L-9002 Revision No: 00Document Class:  1 

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G. Miter bends may be used when provided in the relevant piping classes or with the COMPANY

approval. Miter segments and thickness shall be suitable to satisfy the calculation rules

provided by ASME B31.3.

H. Up to NPS 1½ (DN 40), elbows according to ASME B16.11 shall be used.

I. Butt-welded elbows shall be long radius type (1½ D), wherever possible. Exceptions shall be

noted on the piping drawings.

J. Integrally reinforced forged branch outlet fittings Design, dimensions and tolerances shall

conform to MSS SP-97.

7.4 Figure 8 Blinds, Paddle Blanks and Spacers

 A. Paddle blank and spacer shall be used for NPS 14 (DN 350) and above for CL150, NPS 12

(DN 300) and above for CL300, NPS 10 (DN 250) and above for CL600, NPS 6 (DN 150) and

above for CL900 and above, and where the weight of a figure 8 blind would make its operation

impractical.

B. Figure 8 blinds shall be used for piping NPS 1 (DN 25) through NPS 12 (DN 300) for CL150,

NPS 1 (DN 25) through NPS 10 (DN 250) for CL300, NPS 1 (DN 25) through NPS 8 (DN 200)

of CL600, NPS 1 (DN 25) through NPS 4 (DN 100) of CL900 and above.

C. Figure 8 blinds, Paddle blanks and spacer material shall be in accordance with line piping

class. Blanks and spacers shall have separate handle configuration for identification.

D. Figure 8 blinds, Paddle blanks and spacer dimensions shall be according to ASME 16.48 up to

NPS 24 (DN 600) .

7.5 Branch connections

 A. General

(1) The type of branch connection to be used is shown on Attachment 3.

(2) When the type is not defined the branch connection shall be calculated in

accordance with ASME B31.3.

(3) The branch connection should not intersect the longitudinal weld of the run(if

seamed pipe), so coefficient 1 shall be used for calculation.

(4) In all cases, and mainly when strong loads and moments may be applied to thebranch connections, the MANUFACTURER (or the designer) must verify that

stresses are lower than the allowable stress levels defined by the relevant

code.

(5) All branch connections shall be of the "set-in" type.

(6) Branch reinforcing pad dimensions shall be defined according to Project

Standards and ASME B31.3

B. Branch Connections below NPS 2 (DN 50)

Paddle Blanks and SpacersFigure 8 Blinds,7.4

 A. Paddle blank and spacer shall be used for NPS 14 (DN 350) and above for CL150, NPS 12

(DN 300) and above for CL300, NPS 10 (DN 250) and above for CL600, NPS 6 (DN 150) and

above for CL900 and above, and where the weight of a figure 8 blind would make its operation

impractical.

B. Figure 8 blinds shall be used for piping NPS 1 (DN 25) through NPS 12 (DN 300) for CL150,

NPS 1 (DN 25) through NPS 10 (DN 250) for CL300, NPS 1 (DN 25) through NPS 8 (DN 200)

of CL600, NPS 1 (DN 25) through NPS 4 (DN 100) of CL900 and above.

C. Figure 8 blinds, Paddle blanks and spacer material shall be in accordance with line piping

class. Blanks and spacers shall have separate handle configuration for identification.

D. Figure 8 blinds, Paddle blanks and spacer dimensions shall be according to ASME 16.48 up to

NPS 24 (DN 600) .