QA - Tips and Notes: ALL

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Nominal Pipe Size (NPS)
Confusion with CLASS designations between valves and flanges
Flow Direction in a Reducing Tee
Correcting Uneven Wall Thicknesses
Incorrect flange surface finish for the gasket type
What is Induction Bending?
How can pipe expansion in steam systems be prevented?
What are the differences between HEA, HEB and HEM steel beams?
Functions and types of Swage nipples
Correct Way to Define a Pipe Nipple
What are Miter bends?
What are Dip Pipes?
When should you choose seamless or welded pipes?
Hydraulic bolt tension in flange joints
Gear-driven valve vs. handwheel valve with rising stem
What is the difference between type R and RX gaskets?
Can piston check valves be installed in the vertical position?
Why is a steam boiler needed?
What are bellow sealed valves?
What is a dead man's handle for a valve?
What are Camprofile Gaskets?
Advantage of reduced bore valves over full bore valves
Have you ever heard of the Strait of Hormuz?
From what diameter a pipe in inches is equal to its actual outside diameter in millimeters?
Gate valve solid wedge vs. gate valve flexible wedge
Why is flushing before hydro testing and drying after hydro testing important?
Installation of RTJ gasket rings in the wrong flange groove
In what position should the ball valves be held during the hydrostatic test?
What is meant by Dual Certified Materials?
Single Random Length vs. Double Random Length of Pipes
What does Mesh mean in a Strainer?
What are the functions of steam traps?
What does Lokring technology mean?
What is the difference between ASTM A106 Grade A, Grade B and Grade C?
What's the definition of Valve Trim?
What is meant by all flange bolt holes are "Straddle the Centerlines"?
What is meant by a reinforcement pad?
What does a "Unit Rate" contract mean?
What is Hose Whipping, and can it be dangerous?
What is Explosion Bonding or Explosion Cladding or Explosion Welding?
Dishing of Spiral Wound Gaskets
High-Density Polyethylene (HDPE) piping systems
What are collar bolts and what are they for?
What is a cryogenic tank and what is stored in it?
What is an O'let Branch Connection?
What are Socket Weld Fittings?
Have you ever heard of CorTen steel?
What are Hinged Expansion joints?
What is meant by Flaring in Industry?
What is clean, renewable energy literally under our feet?
What is level measurement by Level Indicators?
Why pipeline pigging is essential?
Why Orifice plates are one of the most popular devices for the measurement and control of fluid flow?
Are threaded fittings a good choice?
What are Fossil Fuels?
What are the welding requirements of O-Let Fittings?
Is green steel produced without the use of fossil fuels?
Are there differences in Raised Face Height of flanges?
What is the need for steam tracing in pipeline systems?
Why are floor gratings used in the petrochemical industry?
Why is Pickling and Passivation applied to stainless steel?
Pressure classes forged steel flanges made acc. to ASME B16.5
What is meant by Hot Forming of a butt weld fitting?
So what is a Valve Interlock System?
What might Wellhead and Christmas Tree mean?
Do you know what RAL colors are?
Have you ever heard of Victaulic pipe joining systems?
What is Hydrogen Induced Cracking of pipeline and pressure vessel steels?
What are Compression Fittings?
What are Thermowells and why are they used?
What are the differences between Cast Iron and Cast Steel?
MTO, BOM, BOQ in a nutshell
At what point is Pressure Drop an issue?
What are Manholes in Process Piping?
What are Flange Insulation Gasket Kits?
Are there differences between Piping and Pipelines?
Is working in a confined space hazardous?
What is Pressure Equipment Directive (PED)?
How to read a Piping Isometric?
Have you ever heard of the Eastern Scheldt storm surge barrier?
Do you know what Eddy Current testing is?
Function of an Emergency Shutdown Valve
What is a Hot Tap and why it is made?
What is Hot Bolting and why are we doing it?
What does a Golden Weld mean?
What are Breather Valves?
Is Fall Protection always required?
Are ANSI B16 or ASME B16 the same thing?
What is a Coriolis Flow Meter and how does it work?
Lower and upper explosion limits for flammable gases and vapors
What are Piping Specifications?
What is Fireproofing for Petrochemical facilities?
What do we need for lifting heavy loads? Rigging
What are the differences between Lifting and Rigging?
What are are Lifting and Rigging Parts?
What are are Lifting and Rigging Slings?
What is Lifting and Rigging Equipment? tirfor chain hoist lever grip winch floor crane mechanical rack jack
Most commonly used Gaskets for flanged connections
Most common types of O'let branch connections
Bolt length for RTJ flange connections
What are leak repair clamps?
What is Cold Cutting?
What are Demister Pad's in Process Piping?
What are Belleville washers?
What is meant by the Chunnel between the United Kingdom and France?
Which ASME standard covers the dimensions of buttweld elbows?
Which ASME standard applies to sizes of WN flanges through NPS 24?
What is meant by PPM in gas dection?
What is a PID - Photo-Ionization Detector?
What is Rockwell Hardness Testing?
What are Pipe Supports?
ASTM A333 - What is meant by killed carbon steel?
Is it possible to print a leak repair clamp for industry?
Do you know what is a Cryogenic support?
What is the difference between a variable and a constant spring support?
What does NACE mean?
Where is Instrument Air being applied?
What Is Sour Service?
What are the differences between ASTM A and ASME SA?
What is ASTM A53 pipe?
What is the Canadian Standards Association (CSA)?
What is Glass Lined Piping?
Nitrogen is one of the most dangerous gases
What is meant by Location is Relative in a Coordination system?
What is Microbiologically Induced Corrosion (MIC)?
Why can't we use Geothermal Energy everywhere?
What is a Tank Terminal or Tank Farm?
What are Marine Loading Arms and a Jetty?
What is Chlorine?
What is the difference between GRE and GRP pipes?
What are the cutter sizes at Hot Tapping through gate valves?
What are Process instruments in Oil and Gas?
Pipeline Safety for Users, Personnel, and Environment
What is a Vortex Flow Meter and how does it work?
What is meant by a Plot Plan and Equipment Arrangement?
What are the most common welding defects?
What is the Mandrel method (Hot Forming) for Elbows?
What is a Pressure Relief valve?
What are Pressure Reducing Valves?
Rupture Discs: Essential in a Pipeline System
What does the Unified Numbering System (UNS) mean?
What are Practical Solutions to Modular Project Execution?
What types and materials of insulation is commonly used?
What are the properties of Inconel® Alloys?
Marking standards for pipes, flanges, fittings, valves, etc.
What can be found on a Process Flow Diagram (PFD)?
What are Flange (Pipe) protectors?
Steel pipe lining with cement mortar
What is a Piping and Instrumentation Diagram (PID)?
What is the difference between Pipe and Tube?
What is a Positive Displacement Pump?
What is a Septic Tank?
Flash Point vs. Fire Point
What does Welding Positions mean?
Do you know what is meant by P Number in Welding?
What is a Sucker Rod Pump?
What are Drip Legs in Steam Systems?
Why is health and safety in welding important?
Have you ever heard of a Turnbuckle?
What are Roller supports in piping?
What is a Blowout Preventer?
What is a Bleedring?
What is a Quickflange?
Which piping items fall under the ASTM A234 material specification?
Which process describes TIG welding?
What does HAZOP study stand for?
How can you easily draw the centerline symbol in AutoCAD?
Why are isometric drawings (views) so important in piping engineering?
What is meant by Nominal Pipe Size?
Why beveling pipes, fittings, and flanges is necessary?
What does ASTM A105 refer to?
What is Non-destructive testing?
Differences between ASME B16.47 A and B flanges
What is the difference between TIG and GTAW welding?
What is the difference between MIG and GMAW welding?
What is JIS?
What is G3452/5 Pipe Standard?
What is B2220 flange standard?
Are there differences between NPS and pipe Outside Diameter?
Is throttling with a ball valve recommended?
Why are pressure gauges filled with liquid?
Is prefabrication of pipe spools necessary?
What can you do if weld ends have unequal wall thicknesses?
Is it possible to use A106 Grade B for low temperature service?
What is the most commonly used material for inner rings in SPW gaskets?
How is the length of stud bolts measured?
What are Xylan coated Bolts?
Torque calculation ASTM 193 Stud‎‏ Bolts
Expansion gap for a socket weld connection
Why can't ASME B16.5 and EN 1092‑1 flanges be combined?
What are venturi orifice steam traps?
What is Engineers' Day celebration?
How is the Sydney Opera House described?