Source Inspection Blog

The Source Inspection Blog is my mini-journal about source Inspection, Pre-Shipment Inspection and Plant Inspection. It...

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Jan 12, 2017

Centrifugal Compressor Vibration Testing and Analysis

This article describes about centrifugal compressor vibration testing, analysis and limits based on API Std. 617

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Jan 12, 2017

Centrifugal Compressor Testing

The centrifugal compressor testing article explains about compressor mechanical running test and compressor aerodynamic performance test, impeller overspeed, casing inspection, gas leak test etc.

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Jan 11, 2017

Centrifugal Compressor Aerodynamic Testing

The API 617 requires the Centrifugal Compressor Aerodynamic testing being performed based on the requirement of ASME PTC 10 -1997. This article provides you with information about this test.

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Jan 11, 2017

Pump Impeller Dynamic Balancing

The pump impeller dynamic balancing is done based on API 610 requirements. The standard requires the balancing be performed based on ISO 1940-1 to the Grade G2.5

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Jan 10, 2017

Pump Casing Hydrostatic Test

The pump casing hydrostatic test is performed after successful completion of the pump casing inspection.

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Jan 10, 2017

Pump Casing Inspection

The pump casing inspection starts with material inspection, nondestructive testing and ends with hydrostatic testing.

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Jan 09, 2017

Pump Mechanical Run Test

Pump mechanical run test is performed for 4 hours to proves pump work in stable condition and all variables are within acceptance range.

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Jan 09, 2017

Pump Net Positive Suction Head Test

The pump net positive suction head test (NPSH test) isperformed to measure the ability of the pump to avoid cavitation in the inlet section of the pump.

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Jan 09, 2017

Pump Vibration Testing

The pump vibration testing is performed during performance test at different flowrates and also during the mechanical running test at the rated flow.

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Jan 05, 2017

Pipe Three Layer Polyethylene Coating Specification

This content provides a sample pipe three layer polyethylene coating specification and highlights important inspection and testing requirements.

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Jan 04, 2017

What is the Valve Backseat Test?

The valve backseat test is performed in the valve with backseat feature and it is similar to the valve shell test and the valve shall be fully opened and packing gland shall be loose.

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Jan 04, 2017

What is the Valve Seat Leak Test (Closure Test)?

In valve seat leak test one side (valve inlet or outlet) shall be subjected to the hydrostatic pressure and amount of leakage shall be measured on the opposite side of the valve.

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Jan 03, 2017

What is the valve Shell Test (Body Test)?

The valve shell test is conducted by valve manufacturer and based on the requirements of API STD 598 ( Valve Inspection and Testing).

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Jan 03, 2017

What is the Welding Map?

The welding map is the equipment sketch which identifies the welding seams and indicates what WPS shall be used for that particular welding seam.

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Jan 03, 2017

What is the Nondestructive Testing Map?

The Nondestructive testing map identifies NDE method and location of the application on the equipment sketch.

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Jan 03, 2017

What is the nonconformity report (NCR)?

The Nonconformity report is a supplementary document for source inspection report when a nonconformance being observed.

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Dec 23, 2016

What is the Material Test Report (MTR)/ Mill Test Report?

Material test report or Mill test report certifies that the chemical analysis and mechanical properties are in conformance with the specified specification.

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Dec 22, 2016

What is the Maximum Allowable Working Pressure?

This article explains about maximum allowable working pressure and its difference with design pressure in the ASME pressure vessel.

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Dec 18, 2016

What is the Arithmetic Average Roughness Height?

This article talks about Arithmetic Average Roughness Height in industrial surfaces such as flange face etc.

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Dec 17, 2016

What is the normalizing heat treatment?

The objective of normalizing heat treatment is to enhance the mechanical properties of the material by refining the microstructure.

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Dec 17, 2016

What is the non-ferrous materials?

This article provides information about non-ferrous materials properties and applications such as Aluminum, copper, and nickel.

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Dec 16, 2016

What is the Plate Lamination Defect?

Plate lamination defect is one of the primary processing discontinuity that originates during hot or cold forming processes and is considered as a serious metal plate defect.

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Dec 16, 2016

What is the metal hot working?

This article provides information about metal hot working and its mechanical properties such as ductility and tensile strength.

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Dec 15, 2016

What is the Weld Destructive Testing?

This article provides information about weld destructive testing for WPS qualification, welder qualification, and production testing.

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Dec 15, 2016

What is the Ferrous Materials?

This content provides information about Ferrous Materials chemical compostion, strength, and properties.

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Dec 14, 2016

What is the Destructive Testing?

This article explains about metal destructive testing such as yield and tensile strength tests, elongation, reduction in area, bend test, and impact test.

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Dec 14, 2016

What is the Metal Cold Working?

The article provides information about metal cold working and its affect on ductilityand strength.

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Dec 14, 2016

What is the Stainless Steel Cladding?

This article provides information about stainless steel cladding over carbon steel material in corrosive services.

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Dec 14, 2016

What is the Annealing Heat Treatment?

The article provides information about the annealing heat treatment e.g. process, temperature, holding time and heating and cooling rate.

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Nov 11, 2016

ASME Section IX Tensile Test

This article provides brief information about ASME Section IX Tensile Test requirements.

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Nov 22, 2015

ASME Section IX Bend Test

This article provides information about ASME Section IX bend test requirements.

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Nov 13, 2015

What is the F number in Welding Procedure Specification?

This article provides information about F number in Welding Procedure Specification based on the requirement of ASME Code Section IX.

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Nov 13, 2015

What is the A number in Welding Procedure Specification?

This article provides information about A number in Welding Procedure Specification based on requirement of ASME Code Section IX.

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Nov 12, 2015

What is the Group Number in Welding?

This article provides information about Group number in welding procedure specification based on the requirement of ASME Code Section IX.

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Nov 12, 2015

P number in Welding

This article provides information about P number in welding procedure specification, welding performance qualification or any other ASME Code section that this number is used.

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Nov 12, 2015

What is the Welding Performance Qualification (WPQ)?

This article talks about welding performance qualification (WPQ) based on requirements of ASME Code Section IX.

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Nov 11, 2015

What is the Welding Procedure Qualification Record (PQR)?

This article provides you information about welding procedure qualification record (PQR) based on requirements of ASME Code Section IX.

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Nov 07, 2015

What is the welding procedure specification?

This article provides information about welding procedure specification(WPS) based on the requirement of ASME Code Section IX.

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Nov 06, 2015

What is the nonessential variable in welding procedure specification?

This article provide information about nonessential variable in welding procedure specification based on ASME Code Section IX.

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Nov 05, 2015

What is the essential variable in welding procedure specification (WPS)?

This article provides information about essential variable in welding procedure specification based on requirements of ASME section IX.

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