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Types of Control Valve


Types of control valves are Pcv – Pressure control valve Tcv – Temperature control valve Fcv – Flow control valve Lcv – Level control valve Xv – Isolation valve Xcv – High pressure control valve Top Courses in Engineering Design PDMS Training 3+ Live Projects 700+ Interview Questions 24/7 E-learning Access SP3D Training Certified Trainer 700+ Interview Questions Job Assistance ... Read More »



Welding Welding is a process by which two materials, usually metals, are permanently joined together by the coalescence, which is induced by a combination of temperature, pressure and metallurgical conditions. The particular combination of these variables can be range from high temperature with no pressure to high pressure with no increase in temperature. There are a number of different methods ... Read More »

Piping Overview – Codes & Standards

piping overview

Piping is governed by the following codes: ASME B31.1 for power plant piping. ASME B31.3 for chemical process plant piping. ASME B31.4 for oil pipelines. ASME B31.5 for refrigeration piping. ASME B31.8 for gas pipelines. ASME B31.9 for gas, steam and water piping. ASME B31.11 for for slurry transportation piping. AWWA for water works piping. NFPA-13 and -24 for fire ... Read More »

Difference between Materials Take-off and Bill of Materials

Material takeoff

A material take-off is the process of analyzing (this includes list of materials with quantities and types, grades of materials and the weights of such materials) drawings and determining all the materials required to complete the design. A bill of materials is adocument that shows detailed descriptions of materials used in completing a project, this includes, types of materials, specification ... Read More »

What are the Various Statutory Requirements to be Considered during Layout?

piping layout requirements

State Industrial Development Corporation (SIDC) Central/State Environment Pollution Control Boards(PCBS) Factory Inspectorate State Electricity Boards Chief Controller of Explosives (CCOE) Static & Pressure Vessel Rules(SMPV) Tariff Advisory Committee Aviation Laws Chief Inspector of Boilers(CIB) Oil Industry Directorate (OISD) Food and Drug Administration (FDA) Ministry of Environment and Forest (MoEF) Top Courses in Engineering Design PDMS Training 3+ Live Projects 700+ ... Read More »

What do you Mean by NPSH? How do you Calculate it?


NPSH = Net Positive Suction Head. NPSH is the pressure available at the pump suction after vapor pressure is subtracted. It is calculated as: Static head + surface pressure head – the vapor pressure of your product – the friction losses in the piping, valves and fittings It thus reflects the amount of head loss that the pump can sustain ... Read More »

Standards for Valves

standards of valves

Standard Title ASME B16.34 Valves – Flanged, Threaded, and Welding End API 594 Wafer Check Valves API 599 Steel and Ductile Iron Plug Valves API 600 Steel Gate Valves, Flanged and Buttwelding Ends API 602 Compact Steel Gate Valves API 603 Class 150 Cast, Corrosion-Resistant, Flanged – End Gate Valves API 608 Metal Ball Valves – Flanged and Buttwelding Ends ... Read More »

What is the Major Difference between API & ASME Standards?

API & ASME standards

ASME (American Society of Mechanical Engineers) produces a series of documents. API (American Petroleum Industry) also produces a series of documents. I don’t know where in this small world of ours you are located but in the United States, all states except for two have adopted ASME as code or law. This means that the facilities located in these states ... Read More »

Stress Flexibility Analysis

pipe stress felxibility

Why do we perform pipe stress analysis? 1) To keep stresses within the code allowable limits 2) To keep nozzle loadings on equipment within manufacture’s or code allowable (API 610, API617, Nema SM 23 etc.) 3) To keep vessel stresses at nozzles within ASME SEC.V111 allowable 4) To calculate design loads on supports and structures 5) To determine piping displacements ... Read More »

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