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Tag Archives: intools course in chennai

Test Pressure Detail from Codes


Code Test type Test pressure minimum Test pressure maximum Test pressure holding time Examination ASME B31.1 Hydrostatic(1) 1.5 time design Max allowable test pressure any component or 90 percent of yield 10 minutes Design pressure ASME B31.1 Pneumatic 1.2 times design 1.5 times design or max allowable test pressure any component 10 minutes Lower of 100 psig or design pressure ... Read More »

Types of Common Fittings

Types of Common Fittings

Flange Weld Neck, Slip On, Socket Weld, Screwed, Lap Joint, Blind Neck Elbow Butt Weld (LR, STD, SR), Screwed, Socket Weld Equal Tee Tee Butt Weld, Screwed, Socket Weld Un-Equal Tee Butt Weld, Screwed, Socket Weld Concentric Reducer Butt Weld, Screwed, Socket Weld Eccentric Reducer Butt Weld Coupling Screwed, Socket Weld, Reduced Bushing Screwed Boss Screwed, Socket Weld Weld-o’let Butt ... Read More »

Piping Design Engineer Interview Questions Part-11 (Valves – V)

Piping Design Engineer Interview Questions Part-11

41. What is relief valve? Valve to relieve excess pressure in liquids in situations where full flow discharge is not required, when release of small volume of liquid would rapidly lower pressure. 42. What is safety valve? Rapid opening(popping action) full flow valve for air and other gases. 43. What is foot valve? Valve used to maintain a head of ... Read More »

ASTM Materials

piping engineering training

Pipes A106 = This specification covers carbon steel pipe for high-temperature service. A335 = This specification covers seamless ferritic alloy-steel pipe for high-temperature service. A333 = This specification covers wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures. A312 = Standard specification for seamless, straight-seam welded, and cold worked welded austenitic stainless steel pipe ... Read More »

Piping Design Engineer Interview Questions Part-8 (Valves-II)

Piping Design Engineer Interview Questions Part-8

11. What is wire drawing? This term is used to indicate the premature erosion of the valve seat caused by excessive velocity between seat and seat disc, when valve is not closed tightly 12. What is straight through valve? Valve in which the closing operation of valve is achieved by 90 degrees turn of the closing element. 13. What pressure ... Read More »

Piping Design Engineer Interview Questions Part-5 (Compressors)

piping engineering

1.What are the types of compressors? Positive displacement, centrifugal and axial, rotary screw, rotary vane, rotary lobe, dynamic, liquid ring compressors. 2.What are the types of compressor drives? Electric motor, gas turbine, steam turbine and gas engine. 3.How centrifugal compressors work? High speed impellers increase the kinetic energy of the gas, converting this energy into higher pressures in a divergent ... Read More »

Flanges and types of flanges

Flanges and types

A flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system. It also provides easy access for cleaning, inspection or modification. Flanges are usually welded or screwed. Flanged joints are made by bolting together two flanges with a gasket between them to provide a seal. Types of Flanges The most used flange types ... Read More »

Suggestions for Reducing Equipment Loading

piping design courses

Piping imposes loads on equipment nozzles. These loads may exceed the allowable given by the manufacturer or codes such as API 610.The following guidelines may be helpful in reducing these piping loads on nozzles connected to equipment. 1. If the dead loads exceed the allowable, Ensure the piping system is adequately supported Remove unneeded supports, they may be the cause ... Read More »

In-Line Pressure Balanced Expansion Joint

In-line pressure balanced expansion joint

When axial deflections exist, and anchoring is impractical for structural or economic reasons, such as high in the air or short straight pipe runs between two large vessels, the in-line pressure balanced expansion joint is a powerful solution to a difficult design problem. The principle of this type of unit is essentially the same as the pressure balanced elbow type, ... Read More »

Functions of Valves

Functions of Valves

The design of the valves are done in such a way as to perform any of the above functions. The type of valves used can be classified in the following categories.1.0 Isolation Gate valves Ball valves Plug valves Piston valves Diaphragm valves Butterfly valves Pinch valves Related Courses in Engineering Design CAD Training 3+ Live Project Time Flexibility Expert Mentors ... Read More »

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