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0 28/03/08 Issued for bid Minniti Pontiggia MinottiRev Date Description Prepared Checked Approved

ABB SpA – Process Automation Division

CHILE – COYA SURPOTASSIUM NITRATE CRYSTALLIZATION PLANT KNO3

CLIENT DOC. NO.

Scale/

SizeA4

EQUIPMENT ALLOWABLE NOZZLE LOAD

SPECIFICATION

Project20019

Unit/Area0000

DisciplineL41

Doc. Design.SP

Progressive00005

Sheet1/7

Rev.0

Document property of ABB SpA: its reproduction, circulation and use without prior consent are forbidden L41-SP-00502Q:\pss\00-COE-EN\EPI\Piping Class\20019-KNO3\DS-LB-RE-SP-SW\20019-0000-L41-SP-00005-0 (Nozzle Allow).doc

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N°. : 20019-0000-L41-SP-00005TECHNICAL SPECIFICATION

Client Doc. N°. :

EQUIPMENT ALLOWABLE NOZZLE LOAD DATE: 28/03/08ABB SpA

PA DivisionPAGE: 2/7

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Document property of ABB SpA: its reproduction, circulation and use without prior consent are forbidden L41-SP-00502

Q:\pss\00-COE-EN\EPI\Piping Class\20019-KNO3\DS-LB-RE-SP-SW\20019-0000-L41-SP-00005-0 (Nozzle Allow).doc

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1

SCOPE 3

2 REFERENCES 3

3

REQUIREMENTS 3

4 NOZZLE LOAD CRITERIA FOR SPECIFIC EQUIPMENT 4

4.1 CENTRIFUGAL PUMPS 4

4.2 ROTARY TYPE POSITIVE DISPLACEMENT COMPRESSORS 4

4.3 RECIPROCATING COMPRESSORS AND PUMPS 4

4.4 PRESSURE VESSELS, COLUMNS AND SHELL TUBE EXCHANGERS 4

4.5 PLATE HEAT EXCHANGERS 4

4.6

AIR COOLED HEAT EXCHANGERS 4

4.7 TANKS 5

4.8 FIRED HEATERS 6

4.9 OTHER EQUIPMENT 6

5 PACKAGED UNITS 6

6 TABLE 1 – ALLOWABLE NOZZLE LOAD 7


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1 SCOPE

This Specification defines maximum nozzle loads applied by piping to mechanical equipment

connections related to onshore. Such equipment must therefore be designed to withstand theseloads.

The Specification shall apply where piping connects to nozzles equipment or to edge skid inPackage Unit.

Nozzle loads defined in this specification shall apply to all nozzles connected to piping; therefore

man-ways and instrument nozzle connections are not to be considered.

2 REFERENCES

Were applicable, nozzle loading shall be in accordance with the requirements specified in the lastedition of codes and standards listed below:

ASME B73.1M Centrifugal Pumps for Chemical Process

API 619 Rotary-Type Positive Displacement Compressors for General Refinery Services

API 560 Fired Heaters for General Refinery Service

API 661 Air Cooled Heat Exchangers for Refinery Service

3 REQUIREMENTS

a) The allowable forces and moments for pressure vessels, exchangers and tanks stated in thisspecification apply to carbon steel and stainless steel equipment.

b) For others materials, the Supplier shall provide an appropriate set of calculations for approval.

c) Where the Supplier submits lower allowable loading than those stated in this Specification, adetailed technical explanation shall be provided.

d) A statement of compliance with this Specification shall be provided by the Supplier, except asnoted in (c) above


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4 NOZZLE LOAD CRITERIA FOR SPECIFIC EQUIPMENT

4.1 CENTRIFUGAL PUMPS

The allowable external forces and moments on pump suction and discharge nozzles, imposed bythe external piping, shall be presented by Manufacturer at the specified operating temperature andat the stand-by condition of the pump.

4.2 ROTARY TYPE POSITIVE DISPLACEMENT COMPRESSORS

The loads on Rotary Type Positive Displacement Compressors shall be in accordance with section

2.4 of API 619. (As per API 617 appendix “G”)

4.3 RECIPROCATING COMPRESSORS AND PUMPS

Nozzles loads on reciprocating compressors and pumps shall be agreed with the Supplier.

4.4 PRESSURE VESSELS, COLUMNS AND SHELL TUBE EXCHANGERS

The allowable forces and moments on nozzles of pressure vessel, columns, and shell and tubeheat exchangers, imposed by the external piping, shall be in accordance with the values listed inTABLE 1.

Loads given in TABLE 1 are to be applied at nozzle/shell intersection simultaneously.

Allowable loads for nozzles not addressed in TABLE 1 shall be presented by Manufacturer and

shall be agreed with Mechanical Department.

4.5 PLATE HEAT EXCHANGERS

Maximum allowable loads on plate heat exchanger end plates shall be:

Forces 70% of the values given in TABLE 1

Moments 100% of the values given in TABLE 1

4.6 AIR COOLED HEAT EXCHANGERS

Maximum allowable loads shall be twice the values given in table 3 of API 661.


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4.7 TANKS

a) Nozzle loads applied to Cylindrical Storage Tanks shall comply with the following maximum

allowable nozzle loads:

NOZZLE FORCES (N) MOMENTS (Nm)

Size Axial Vertical Horizontal Torsion Bending 1 Bending 2

50 500 340 340 70 50 50

80 1050 750 750 250 160 160

100 1500 1000 1000 400 280 280

150 2500 1700 1700 1050 700 700

200 3750 2600 2600 1900 1350 1350

250 5200 3700 3700 3300 2350 2350

300 6900 4900 4900 5250 3850 3850

350 8850 6300 6300 7900 5700 5700

400 11000 7800 7800 11250 8000 8000

450 13390 9400 9400 15100 10750 10750

500 15750 11150 11150 19250 13600 13600

600 21400 15150 15150 28000 19850 19850

b) Nozzle loads applied to Flat Side Tanks shall comply with the following maximum allowablenozzle loads:

Nozzle FORCES (N) MOMENTS (Nm)

Size Axial Shear Torsion Bending

50 750 750 750 450

80 1500 2000 750 450

100 2000 3000 1400 750

150 3000 5000 3000 2000

200 3500 6000 4500 3000

All loads stated above act at the tank plate / nozzle intersection and are to be assumed to actsimultaneously.

The Tank Supplier shall provide sufficient local reinforcement to ensure that stress due to pressure

head, radial load and applied moment does not exceed 1.5 times the allowable design stress forthe plate.

For nozzles exceeding 8” nominal diameter, allowable loads shall be agreed with the MechanicalDepartment.


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4.8 FIRED HEATERS

Allowable loads applied to Fired Heater terminals shall be in accordance with the values given inTABLE1.

If not possible, they shall be limited to those given in table 7 of API 560 and agreed with theMechanical Department.

4.9 OTHER EQUIPMENT

Allowable loads applied to equipment other than that listed above shall be agreed with theMechanical Department.

5 PACKAGED UNITS

The following procedures shall be adopted where piping is connected to packaged units

a) If connected directly to equipment listed in section 4 the nozzle loads shall be in accordancewith Section 4.

b) If the piping is connected to equipment other than that specified in Section 4 or to a nozzleanchored at the edge of the skid, the loads listed in TABLE 1 shall be used.

c) Where physical constraints do not permit anchoring, the interface nozzle, at the skid edge,shall be supported and guided as necessary within the package such that the interface

nozzle will accept the loads listed in TABLE 1. The Supplier shall provide thermal expansionmovements at the interface nozzle.


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6 TABLE 1 – ALLOWABLE NOZZLE LOAD

SIZE P TL TC MT ML MC

50 1000 1000 1000 500 500 50080 1500 1500 1500 600 600 600

100 2100 2100 2100 1100 1100 1100150 4600 4600 4600 3400 3400 3400200 6000 6000 6000 5700 5700 5700250 7600 7600 7600 6900 6900 6900300 9200 9200 9200 8000 8000 8000350 10800 10800 10800 9200 9200 9200400 14600 14600 14600 11300 11300 11300

450 18500 18500 18500 13500 13500 13500500 22300 22300 22300 15600 15600 15600550 26200 26200 26200 17800 17800 17800600 30000 30000 30000 20000 20000 20000

Nomenclature

P is the axial force on nozzle line centre

TL and TC are the shear forces (Longitudinal and Circumferential on the shell of the vessel)

MT is the Torsion moment on nozzle line centre

ML and MC are the bending moments (Longitudinal and Circumferential on the shell of the vessel)

Values are to be considered as simultaneously acting.

CORRECTIVE FACTORS

Allowable loads as given are valid for a vessel having 10 mm shell thickness “t” and 1000 mmshell radius “R”. A corrective factor has to be considered for different values of t and R.Factor KtR = t

1.5 / R

0.5

Allowable loads as given are valid for a carbon steel vessel. A corrective factor has to beconsidered for different materials:Factor KM = 1.00 Carbon steel

Factor KM = 0.95 Stainless steel TP 304 & TP 316 Factor KM = 0.75 Stainless steel TP 316L

Allowable loads as given are valid for materials up to 200°C; over 200°C a de-rating factor must beapplied as follows:

Temperature °C 200 250 300 350 400 450 500

Factor KT = 1.000 0.933 0.866 0.800 0.733 0.666 0.600

Interpolation between given values is permitted.

Values of TABLE 1 then will be considered as

ACTUAL VALUE = DATA VALUE x KtR x KM x KT

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