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Learn Basic of Piping Engineering: Chapter-3

Posted by Antony Thomas at Monday, February 28, 2011



CHAPTER-3
FLUID

INTRODUCTION:
It can be
·         A gas
·          A liquid
·          A mixture of gas or liquid
·          A suspension of small solid particles inside a liquid.

BASIC PROPERTIES OF CONVEYED FLUIDS:
  • Fluid type
  • Flow rate
  • Pressure
  • Temperature


FACTORS DEPENDING UPON FLUID TYPE:

1. MATERIAL:
a. Non corrosive fluids: Services where impurities are accepted
Example:
Industrial water lines (cooling water)
Steam
Lube oil return / before filter lines
Air lines
Vents and drains
Material:
Carbon Steel
Low Alloy Steel (High T)
b. Corrosive fluids: Services where impurities are not accepted
Example:
Demineralized water
Lube oil after filters
Fuel gas / oil
Sea water (water containing Chlorine)
Material:
Stainless Steel
No Iron (Fe)
Copper/Nickel Alloys (Cu-Ni)
c. Aggressive Chemicals
Example
Strong Acids / Bases
Material:
Plastic: PVC – TEFLON – PE
Rubber: NBR, Viton
Composites: RESIN GLASS
2. CORROSION ALLOWANCES:
Thickness of the pipe increases with respect to corrosion. Typical corrosion allowance for water is 3mm.

3. TYPE OF JOINT:
Dangerous fluids are conveyed in fully welded pipes, were leaks are not accepted.

4. TESTING AND EXAMINATION:
For Dangerous Fluids 100% of joints are likely to be X-Ray examined


FACTORS DEPENDING UPON FLOWRATE:
1. DIAMETER:
For a given flow rate:
Small diameter means higher velocity of the conveyed fluid.
Big diameter means slower velocity of the conveyed fluid.

Velocity of fluids in pipelines affects:
Pressure losses along the pipeline.
Pressure losses are proportional to the square velocity (v2).
Vibration of the pipeline.

Usual velocities of fluids inside pipelines are:
Gas: 20 m/s - max. 40 / 50 m/sec.
Liquid: 2 to 4 m/s - max. 10 m/sec.


FACTORS DEPENDING UPON PRESSURE:
1. WALL THICKNESS CALCULATION
2. TYPE OF JOINT
Low pressure pipelines can be threaded or socket welded
High Pressure pipelines are Butt Welded
3. TESTING AND EXAMINATION:
Non process Pipelines (For Example Vents and drain lines) may even have no tests at all Low Pressure Pipelines can undergo only the Hydraulic Test For intermediate pressures a 10% to 50% of joints must be examined with X-rays High Pressure Pipelines are usually 100% X-ray examined.

FACTORS DEPENDING UPON TEMPERATURE:
1. MATERIAL:
Steel for High Temperature (Low Alloy Steel Creep Resistant)
2. WALL THICKNESS CALCULATION
3. THERMAL INSULATION:
T>60°C Insulation for Personnel Protection is mandatory for all pipeline parts that can be reached by hands.
4. STRESS ANALYSIS:
Hot Lines must be routed properly. Provisions shall be taken so that when temperature rises from ambient to Operating Temperature the thermal expansion of Pipelines does not generate stresses too high for the pipes to withstand.

FLUID SERVICE CATEGORIES:
B31.3 recognizes the following fluid service categories and a special design consideration based on pressure. It is the owner’s responsibility to specify the fluid service category for each piping system. With the fluid service category known, then the designer can make material and component selection, as well as employ the code required fabrication and inspection requirements based on the selected fluid category. These fluid categories and pressure concern are:

1. Normal fluid service
2. Category D fluid service
3. Category M fluid service
4. High pressure piping
5. Severe cyclic conditions

Category D Fluid Service is defined as all fluid services that are:
· Nonflammable
· Nontoxic
· Not damaging to human tissues
· The design gage pressure does not exceed 150 psig
· The design temperature is from -20° f to 366° f is the saturated temperature of  steam at 150psig

Category M Fluid Service is defined as a service in which a single exposure to a very small quantity of toxic fluid can produce serious irreversible harm to person on breathing or bodily contact, even when prompt restorative are taken.

The Normal Fluid Service is defined as all other fluid services that are not category D and category M

High Pressure Piping Service is defined as that in which the pressure is in excess of that allowed by the ASME B16.5 2500 flange class ratings.

PIPING SYSTEM CORROSION:

General or Uniform Corrosion:
Uniform metal loss. May be combined with erosion if high velocity fluids, or moving fluids containing abrasives.

Pitting Corrosion:
Localized metal loss randomly located on material surface.
Occurs most often in stagnant areas or areas of low flow velocity.

Galvanic Corrosion:
Occurs when two dissimilar metals contacts each other in corrosive electrolytic
environment.

Concentration Cell Corrosion:
Occurs when different concentration of either a corrosive fluid or dissolved oxygen contacts areas of same metal.

Crevice Corrosion:
Localized corrosion similar to pitting.
Occurs at places such as gaskets, lap joint, and bolts where crevice exists.

SEE ALSO:

Learn Basic of Piping Engineering: Chapter-2



PDMS DESIGNERS / ENGINEERS FOR MNC IN MUMBAI

Posted by Antony Thomas at

 

Dear All,

MUMBAI

A) We have a fresh requirement for Engineers and Designers with experience in oil and gas /power sector for permanent position in Mumbai (for a reputed MNC) in following disciplines.
In all disciplines working knowledge of PDMS is essential.
1) Piping Engineers (PDMS)-exp 6Yrs+ Lead Engineers :- 2Nos.
2) Piping Engineers (PDMS) Chief Design Engineer       :-2Nos.
3) Piping Designers (PDMS) Exp 6yrs+                         :-8 Nos.
4) Electrical Engineers(PDMS) exp 5Yrs+                     :-4 Nos.
5) Electrical Designers (PDMS) exp 5yrs+                     :-8Nos.
6) Static Eqpt. Engg 5 to 8 yrs exp                              :-4 Nos.
7) Instrumentation  Designers 6yrs+exp                        :-4 Nos.
8) RCC/Structural Engineers Min 5 yrs Experience        :-4 Nos.
9) RCC/Structural Designers(PDMS) exp 6Yrs+            :-6 Nos.
B) Also required for Mumbai PDS Designers exp 6yrs + (for one year contract) extendable :- 12 Nos.

CHENNAI

1) SP3D Designers with 6+ yrs experience.                  :-20 Nos.

    (for one year contract) extendable

Suitable candidates are requested to forward their Cvs.
On approval of Cv and on clearing the iinterview,direct negotiation with client for salary.
Thks,

Best Regards...
Ajit Wadhwa/Geetanjali,

Cell:  91-9323791132/   9322476422
www.petroindia.net

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Indonesia WorleyParsons Engineering Vacancies in Jakarta

Posted by Antony Thomas at Saturday, February 26, 2011


Dear All,

WorleyParsons Indonesia has been awarded a couple of projects, work on which would be starting shortly. The details of the projects were explained in the Staff Briefing meeting this month. To meet the additional requirements of the projects, we are looking to hire the following-





  1. Engineers for all disciplines- Process, Structural, Mechanical, Electrical, Instrumentation, Pipeline and Safety ( All levels)
  2. Designers for Piping, Structural, Instrumentation, Electrical, Pipeline ( all levels)
  3. PDMS Administrators
  4. Lead/ Senior Document Controller

We would appreciate if you could support the recruitment drive by submitting the CVs of your friends, ex-colleagues etc who have the relevant experience to Jakarta.Vacancy@worleyparsons.com.  

I would like to take this opportunity to reiterate that you shall be entitled to the Employee Referral Award for the successful recruitment of your referred candidates.

Thank you very much and we look forward to your support and contribution.

Regards,

Sujata Goel

PIPING PDMS DESIGNER CHENNAI

Posted by Antony Thomas at

Hi!
Greetings from HCR Global Services!
At present we have Urgent Openings with one of the pioneers Companies In the globe, they are into Oil & gas / Refinery Sector, Looking for Sr. level " Piping PDMS Designer " Position.
Position : Piping PDMS Designer
Industry : Oil & Gas
Experience : 6+
Education : Diploma / ITI (Mechanical)
Location : Chennai
Experienced candidates from: Oil & Gas / refinery / Petrochemicals - can only apply
If you are interested kindly forward your updated profile with the following details:
Total years of Experience:
Current CTC:
Expected CTC:
Notice Period:
Present location:
Contact Number:
Thanks & Regards,
Sandhya| Sr.HR-Analyst
HCR Global Services| Email ID: sandhya@hcrglobal.com |
Website: www.hcrglobal.com

Labels: ,

Overseas Opening-PDS Administrator

Posted by Antony Thomas at Thursday, February 24, 2011

Dear Sir,
We take pleasure in introducing our company Source Pundit to you.
Source pundit is a leading consultancy servicing a broad range of clients in the upstream oil & gas process industries. We are operating on a global basis thru our offices in St. Louis (USA), New Delhi (India) and San Jose (Costa Rica).
We offer the following services:
• Recruitment (finding the right talent),
• Marketing services (finding & keeping the right client)
• Application services (Software development and support).
The Below Position is with one of leading EPC Company based in Yokohama, Japan
Job Title
:
Piping 3D CAD(PDS) Administrator
Department/Division
:
Piping Engineering Department, Engineering Division
Location
:, Yokohama, Japan
1. Responsibilities
The Piping 3D CAD(PDS) Administrator will support the Lead Piping Engineer (LE). The Piping PDS Administrator will undertake the duties regarding PDS related work for the LE of the Project.
2. Knowledge and Experience
The Piping PDS Administrator shall have the following minimum experience and knowledge:
experience in user support work in actual project using PDS
· Knowledge of material system such as SmartPlant Materials
· Knowledge of EPC projects for oil/gas processing plants
· Knowledge of basic piping design
· Knowledge of general CAD application such as MicroStation and AutoCAD
· Knowledge of programming such as RIS, SQL
· Good English communication skills
· Knowledge of standard international styles of business communication and experience in the preparation of business and technical documentation
1. First Name:
2. Middle Name:
3. Last Name:
4. Job Title / Applying Position For:
5. Nationality:
6. Place of Current Residence:
7. Date of Birth (Age):
8. Passport Number:
9. E-Mail Address:
10. Direct Contact No.:
11. Total Work Experience
12. Total Work Experience in Oil & Gas:
13. Education:
14. Current Company:
15. Current Salary USD:
16. Expected Salary USD:
17. Status of Stay (along with dependents details)
Kindly send me your updated CV also.
If you have any reference of your friend or colleague for this position then pl let me know or forward my mail to them
Please let me know if you would like to have any further information
arm Regards,
Mallika Sinha
Recruiter
SourcePundit Info Systems Pvt. Ltd.
Office: +91-11-30894188
Cell: +9899462701
Email: mallika.sinha@sourcepundit.com
Web: www.sourcepundit.com

SEE ALSO:

PDS ADMIN URGENTLY WANTED FOR A MNC

Labels:

PDS Administrator Urgently Wanted for MNC

Posted by Antony Thomas at

PDS ADMINISTRATOR URGENTLY WANTED FOR A MNC

Monday, 21 February, 2011

WE have an urgent opening for the position PDS Administrator profile with one of the MNC co.
Company Profile
Our client is an leading MNC in the EPC segment, ie.international leader in Engineering, Procurement, Construction

Job profile


Computer Skills;
> PDS 3D - Piping Modeling, Equipment Modeling, Drawing Manager, Isometric Extraction.
> Intergraph Smart Plant Review (SPR).
> Pelican Forge (Support Modeler for PDS), Micro station, Auto CAD R2000 to Auto CAD R2006.
Professional Strengths:
> Prepare the Piping & Equipment 3D Modeling in PDS environment.
> Prepare the Support Modeling & extract the support Drg. from Pelican Forge.
> Extract the Engg. Isometrics from PDS. Pipe clash checking in SPR.
> Prepare the GA drawings for onshore, off shore Platform and Power Plant Piping.
Piping & Equipment Modeling ~ Pipe Support Modeling
Synopsis - should have minimum 8 years experience in Oil & Gas Offshore Platforms, Process plants and Power plants.
> Possessing International projects exposure using ASME, API, ANSI and ASTM codes.
> Well versed in Oil & Gas pipe line involving receivers / launchers, separator area, water injection manifold system, pump house area piping appurtenances and process piping design.
> Technically adept in PDS 3D (Piping Modeling, Equipment Modeling, and Isometric Extraction); SPR (Smart Plant Review); Pelican Forge (Support Modeler for PDS) and Micro station.
Kindly send your updated for the same
Contact person -Sarita
Contact no.-7498018598
The Giant HR

sarita.thegianthr@gmail.com

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PUMP PIPING LAYOUT DESIGN GUIDELINES

Posted by Antony Thomas at Monday, February 21, 2011



Pump suction lines shall be as short as possible, without pockets and with adequate flexibility. Piping should be self venting and self draining to the suction source where possible.
Eccentric reducers shall be used in horizontal suction lines, installed top flat.
Pump piping shall be arranged and supported such that pumps, permanent strainers, temporary strainers and pump internals can be easily dismantled or removed. Temporary strainers shall be located close to the pump nozzle. Removable spool shall be installed for  conical strainers. Permanent strainers shall be located to permit servicing without disturbing pump alignment. “Y” type and basket strainer arrangement shall permit installation and operation of a blowdown/drain valve and clearance to remove the strainer basket.
Pumps with side or double suction inlets and horizontal suction lines require a min straight length as stated below:

Type of Pump
Position of Suction Piping
Minimum Straight Length
Single suction, end suction type
Not applicable
4D
Single suction, top-top connection
At top of pump
4D
In same plane as pump shaft
1.5D
Double suction
Perpendicular to pump shaft (preferred situation)
3D
Any other position other than perpendicular
5D min/10D max

Suction and discharge pulsation dampeners (bottles) on positive displacement pumps, if required, should normally be installed between pump nozzles and first block valve.
Lines at reciprocating pumps shall be designed and supported such that pistons can be removed without disturbing piping.
All valves in pump piping shall be accessible without use of chain operators or extension stems.  Valve operators shall not intrude into access ways.
Piping shall be routed clear of pumps, and overhead clearance shall be provided for pump maintenance and removal.
All suction lines shall be checked by the Mechanical/Process Engineer to approve layout and ensure the net positive suction head (NPSH) falls in the range of the pump performance curve.

VALVE / PERSONNEL ACCESS, WORKING SPACE & INSTALLATION GUIDE

Posted by Antony Thomas at Sunday, February 20, 2011

VALVE OPERATING CLERANCE:

Valves are best installed with the stem pointing staright-up (Vertical stem). Since this position greatly facilitates in-place maintenance (lubrication, inspection & repacking)

Valves may be rotated as far as the horizontal position with no great decrease in maintenance convenience. But should not be installed with the stem downward since the bonnet acts as a trap for acrasive sediment and water wich may freeze under extreme climatic conditions.

Safety (operation & maintenance ) requires that valves be placed over platforms, rather than adjacent to them. Valves can be placed over access area if they comply with horizontal stem limitations and area bove 2100 min head clearance.


Valve operating clearance
 MINIMUM CLEARANCE PASSAGE WAYS:

Ergonomical requirements for minimum clearance of passage ways are illustrated in the following picture.

Passage ways - Minimum Clearance

PERSONNEL CLEARANCE WORKING SPACE:

Ergonomical Requirements for the personnel clearance for working space is illustrated in the following figure.


Personnel Clearance work space
 Ergonomical Valve Installation Guide


Valve Installation Guide

ENGINEERING OPPORTUNITIES IN SINGAPORE MALAYSIA

Posted by Antony Thomas at Thursday, February 17, 2011

We have an interesting opportunity of Instrumentation Designer and the position is based in Singapore.

In case you are inclined to change your job to enhance your career growth, please keep in touch with me with your latest CV and contact details.

Please feel free to forward this email to your friends and contacts whom you feel would be interested in working Singapore, or alternately you could pass their contact numbers to me and I will contact them on your behalf. Interested may send updated CV as soon as possible.

We have the following openings also


 

Sl.NO

Job Title

Openings

Location

1

Project Engineer - Construction

4

Malaysia

2

Lead Piping Designer

1

Singapore

3

Piping Stress Engineer

1

Singapore

4

Piping Material Engineer

1

Singapore

5

Process Engineer(PRO10)

1

Delhi

6

HSE Design Engineer(HSE10)

1

Delhi

7

Structural Design Engineer(STR10)

1

Delhi

8

Piping Engineer(PIP10)

1

Delhi

9

Project / Planning Engineer(proj10)

1

Delhi

10

Instrumentation Engineer

1

Delhi

11

Electrical Engineer

1

Delhi

12

Business Development/Proposals Manager

1

Delhi

13

Auto CAD/PDMS Designer/ Architect

1

Delhi

14

General Manager  – TPGM/MMHE -  Hull Engineering JV

1

Malaysia

15

Senior Piping Materials Engineer

1

Malaysia

16

PDMS Administrator

1

Singapore

17

Lead Piping Engineer

1

Malaysia

18

Project Engineer

4

Malaysia

19

Mechanical Engineer - Rotating

1

Malaysia

20

Instrumentation Designer

3

Malaysia

21

Instrumentation Engineer

3

Malaysia

22

Process Safety Engineer

3

Malaysia

23

Process Engineer

1

Malaysia

24

Safety Engineer (Norsok)

1

Singapore

25

Process Engineer (Norsok)

1

Singapore

26

Planning Engineer Manager

1

Dubai

27

Construction Manager

1

Dubai

28

Contracts Engineer

1

Malaysia

29

GM - Shipbuilding, Hazira

1

Hazira

30

Business Development Executive - FPSO

1

Singapore

31

Project Controls Manager

1

Singapore

32

Mechanical Engineer - Lead /Senior

2

Singapore

33

Technical Safety - Lead/ Senior

1

Singapore

34

Structural Engineer - Lead/ Senior

2

Singapore

35

E&I Engineer - Lead/ Senior

2

Singapore

36

Electrical Engineer - Lead/ Senior

2

Singapore

37

Process Engineer - Lead/ Senior

2

Singapore

38

Piping Engineer - Lead/ Senior

2

Singapore

39

Senior Procurement Specialist

1

Malaysia

40

Project Control Engineer

1

Malaysia

41

Mechanical Engineer Static Equiment

1

Noida

42

Mechanical Engineer - Package

1

Noida

43

Business Development Manager, Refineries

1

Singapore

44

Subsea Installation Engineer

1

Singapore

45

Electrical Designers

1

Singapore

46

Piping layout Designer

1

Singapore

47

Instrumentation Designer - PDMS

2

Singapore

48

Business Development Director-Upstream, Kuala Lumpur

1

Kuala Lumpur

49

Pipe Stress Engineer

2

Singapore

50

Process Safety Engineer

1

Singapore

51

Mechanical Engineer - Pressure Vessel

1

Singapore

52

CAD Administrator (PDMS)

1

Singapore

53

Mechanical Engineer - Static

1

Singapore

54

Mechanical Engineer - Rotating

1

Singapore

55

Information Management Coordinator – Fabrication

1

Singapore

56

Environmental Engineer

1

Singapore

57

President - Shipbuilding

1

Chennai

58

Process Safety Engineer

2

Abu Dhabi

59

Structural Engineer

1

Abu Dhabi

60

SENIOR SAFETY ENGINEER

1

Abu Dhabi

61

VP - Water Business

1

Hyderabad

62

Quality Assurance Manager

1

Singapore

63

Head of Electrical & Automation business

1

Mumbai

64

Subsea Engineer - Lead

1

Singapore

65

Subsea - Department Head

1

Singapore

66

Electrical Designer - PDMS

1

Singapore

67

Electrical PDMS Designer

3

Singapore

68

Project Engineers

1

Delhi

69

Plant Manager

1

Delhi

70

Sr.Environmental Engineer

3

Delhi

71

Geotechnical Engineers / Geologist

4

Delhi

72

Operators  – Tunneling

15

Delhi

73

Survey manager-Tunneling

1

Delhi

74

Chief land surveyor- Tunneling

1

Delhi

75

Blasting Engineers-tunneling

2

Any Location

76

Saftey Manager-Tunnels.

1

Any Location

77

Structural Designer - PDMS

12

Singapore

78

Lead Hook Up Engineers / Managers

1

Dubai

79

Structural Designer - PDMS

1

Singapore

80

Process Engineers

10

Singapore

81

Proposal/ Bid Coordinator

1

Dubai

82

Sr. Project Engineer (Electrical Specialist)

1

Dubai

83

Sr. Project Engineer (CABLE )

1

Dubai

84

Field Engineer

2

Dubai

85

Bid / Proposals Assistant / Coordinator

1

Dubai

86

QA Administrator

1

Dubai

87

Head-Engineering

1

Delhi

88

Divisional Logistics Manager

1

Mumbai

89

Piping Designer - PDMS

20

Singapore

90

E and I Engineer

1

Singapore

91

Structural Engineer

10

Singapore

92

Power-Engineering Head

1

Delhi

93

Engineering Manager

1

Abu Dhabi

94

Piping Designer - PDMS with MDS

1

Singapore

95

Piping Designer PDMS

1

Singapore

96

Technical Services Director

1

Delhi

97

Project Director - Infrastructure

1

Azerbaijan

98

Mechanical Engineer - Package

1

Singapore

99

Sr. QA / QC Manager

1

Mumbai

100

Process Engineer

1

Singapore

101

Tunnelling Manager

1

Delhi

102

Estimation Engineer

5

Delhi

103

Mining Manager - Johannesburg, South Africa

1

South Africa

104

Project Engineering Manager

1

Mumbai

105

Planning Manager - Mining & Geo-tech

1

Delhi

106

Construction Manager - Tunneling

1

Delhi

107

Operations Manager - Mining

1

India

108

Estimation Manager/ Head - Estimation

1

India

109

GM - Project Development

1

India

110

Estimation Manager - E and C

1

India

111

Senior Operation Engineer

1

Singapore

112

Business Development Manager

1

Perth

113

Lead Piping Engg Stress Analysis

1

Mumbai

114

Lead piping Engg  Materials

1

Mumbai

115

Lead Piping Engg  Layout

1

Mumbai

116

BD Manager (Oil & Gas) - India

1

Mumbai

117

HSE Manager

1

India

118

Operations Manager_India

1

Mumbai

119

Divisional Manager

1

Mumbai

 

Should you need any clarifications please feel free to call me on the co-ordinates in my signature below.

 

Regards,

Jerry Sebastian

Asst. Consultant

+919895355712

 

 

INDIA: : Camino India, 1st floor, Metro Palace, Opp. North Railway Station, Cochin – 18. Tel: 0484 2397086 / 2393865

SINGAPORE:  Camino Asia Pte Ltd,77 High Street, #07-06 High Street Plaza,Singapore - 179 433. Tel: +65 - 633 44 700

USA:  Camino International LLC,Two Prudential Plaza,180 North Stetson Suite 3500,Chicago 60601.Tel: +1 312 265 5803

 

Website: www.caminoasia.com

 

CHINA – PHILIPPINES – INDIA – SINGAPORE – USA - UAE

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