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Valve Inspection checklist,Valve Inspection

Valve is the control component in the fluid conveying system, with the functions of cutting-off, regulation, diversion, upstream current prevention, pressure stabilization, diversion or overflow pressure relief.

Valves used for fluid control systems, from the simplest stop valves to the extremely complex automatic control systems used in the various valves, their varieties and specifications are quite wide. Valves can be used to control the flow of various types of fluids, such as air, water, steam, various corrosive media, mud, oil products, liquid metals, and radioactive media

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1.Inspection Environment and Requirement

-Requirement for place of inspection:Light from a power of at least 500 Lux.

-Perspective:The products must be tested by every angle.

-Distance of viewing:In doubts, check the products from a distance of 30 cm. If it is not visible, it is no defect. View the items by various angles.

2.Defect Description

-Not permitted any sharp point/sharp edge.

-Not permitted infestation of live insect.

-Not permitted blood mark

-Not permitted heavily odor.

-Not permitted crack mark,chipped edge, dent mark,scratch mark etc.

-Not permitted air holes,flash mark,short shot,burr etc.

-Not permitted shrink,slag hole,scab,flow mark etc.

-Not permitted deformantion etc.

-Not permitted rust mark.

-Not permitted wrong stamp,missing stamp etc.

-Not permitted unreasonable gap

-Not permitted water spot,color stain,oil stain,dirty, impurity mark etc.

3.Field Test & Measurement

-Color shade check

-Smell check

-Product dimension check

-Product weight check

-Assembly check

-Leak test

-Quantity per pallet check
-Pallet dimension check

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