Before you start piping stress calculation, you have to refer to line index ( or called the line classification lists or process line lists) to check design temperature and an operating temperature for line to be checked.Stress analysis shall be carried out on the basis of the design temperature.

Secondly, you have to know requirements base on your project specification such as

Minimum Ambient Temperature. ( TAMIN )

Maximum Ambient Temperature. ( TAMAX )

Maximum Solar Radiation Temperature. ( TS )

Site Installation Temperature. (TAs )

We will use value below in our piping stress analysis tutorials:

TAMIN = 16°C ( For Stress Range Purpose, in case hot lines)

TAMAX = 36°C ( For Stress Range Purpose , incase cold lines )

TS = 70°C

TAs = 21°C

Line design temperature shall be taken from process line lists ( or line index).

In case plus design temperatures <70°C , 70°C will be taken as design temperature

Example 1:

Line design temperature as per line index is 65°C so we will take 70°C as design temperature for stress calculation

TAMIN = 16°C ( For Stress Range Purpose )

TAs = 21°C

Example 2:

Line design temperature as per line index is -250°C so we will take -250°C as design temperature for stress calculation

TAMAX = 36°C ( For Stress Range Purpose with )

TAs = 21°C

Noted:

TAMIN= 16°C in example 1 ( for hot line) and TAMAX = 36°C in example 2 ( for cold line)
You have to find Minimum Ambient Temperature, Maximum Ambient Temperature, Maximum Solar Radiation Temperature, Site Installation Temperature in your project specifications

The following article lists some simple, informative tips that will help you have a better experience with Piping Material Specification Terms.

Compact Gate Valve

Compact gate valves are used for economic reasons. They are cheaper and weighs lesser. Lesser weight in a piping system means fewer supports and therefore, savings. It is used for small size gate valves up to 1-½” although the standards supports its use up to 2”. This is because most projects have socketwelds only up to 1- ½” NPS. The reference for these valves is API 602.

Full Port(Bore) vs. Reduced Port (Bore) vs. Standard Port(Bore)

The full port valve has an inlet and an outlet size equal to the ball opening size. In contrast, a reduced port has a bigger inlet tapering towards the smaller ball opening. The outlet tapers toward a bigger exit. Standard port is actually another name for reduced port.

Reducers

Reducers may either be concentric or eccentric. However, for small reducers, most often than not, they are concentric because they are made of forged material like A105. With Caltex specifications, small reducers are not distinguished (as to whether they are concentric or eccentric), which can be confusing.

Piston Lift

This type of check valve uses the piston in the form of a cylinder, with its lower end shaped to form a seating face. The cylindrical part fits into the shell. The piston must be long enough to ensure that it is well guided over the distance of its travel. Likewise, piston-type check valves shall have an integral or separate guide of sufficient length to ensure effective guidance over the full length of the piston travel.

Tanged Insert

A type of gasket used as a substitute for asbestos.

SC, BC

Check valves do not have bonnets, instead covers are used. SC stands for Screwed Cover while BC means Bolted Cover. Screwed Cover is usually used for low pressure service, instrument air and water. Bolted Covers can be used for higher pressure service.

Bonnet

Bonnet is a valve body closure component that contains an opening for the stem. Attachment of bonnet to the body shall be either of the following types:

Bolted bonnet (BB) - A valve construction in which the bonnet is bolted in the body. A mating flange between the body and bonnet shall be installed. This flange shall be of a suitable shape to provide adequate strength. The joint between the body and bonnet shall be of a type that confines the gasket.

Screwed bonnet (SB) - A valve construction in which the body and the bonnet are attached using by a threaded end. There are two types namely:

Threaded-in bonnet - a bonnet that is threaded into the body.

Threaded-over bonnet - a bonnet into which the body is threaded.

Screwed bonnet is mainly used for instrument air, potable water lines and very low pressure service such as CL125 and CL150. Some projects require seal welding for this type of valve construction.

Union bonnet (UB) - A valve bonnet that is fastened to the valve body by means of a union nut. Union bonnet valve construction may be used for very low pressure service.

Welded bonnet (WB) - A valve construction wherein the bonnet is welded to the body. This type of bonnet is rarely used but is applicable for very toxic fluid service (Type M). Maintenance or replacement of the unit is difficult for the welding is uneasy to remove.

Pressure seal bonnet (PSB) - A bonnet closure assembly in which internal fluid pressure force on the bonnet increases the compressive loading on the sealing gasket. This type of assembly is very expensive and usually used for very high pressure services (over 900 psi).

Gland
A part of a valve that provides compression on the packing to prevent leakage.

OS&Y (Outside Screw and Yoke)

A valve design where in the packing is between the stem threads and the valve body. Yoke is a part of a valve assembly used to position the stem nut to mount the valve actuator.

ISS (Inside Screw and Stem)

This assembly is of two types namely:

Inside screw non-rising stem - A type of gate valve design where in the disc rises on the threaded part of the stem instead of the stem rising through the bonnet. The stem does not rise or descend as the stem is turned.

Inside screw rising stem - A type of gate valve or globe valve design where in the stem has both rotary and axial motions and rises as the stem is turned. The stem threads are between the stem packing and closure member.

Stem - a valve component to which motion is impaired outside the valve assembly to move the closure member inside the valve.

Seats

There are two seats in a valve: the disc seat and the body seat. The disc seat is softer and removable. The body seat is usually harder than the disc. All disc seats can be removed unlike body seats.

There's a lot to understand about Piping Material Specification Terms. We were able to provide you with some of the facts above, but there is still plenty more to write about in subsequent articles.

Desuper heater is a device fitted with one or more spray nozzles, in which the quantity of spray nozzles depends upon the capacity.  These injects a fine spray of cooling water or feed water into a section of pipe where the superheated steam passed through, absorbing the heat from the steam and reduces the quantity of superheat.   To achieve the maximum mixing efficiency of steam and spray water, the direction of water injection is parallel to the steam flow.
       
HERE ARE TYPICAL INFORMATION TO VENDOR

1. Item Number
2. Quantity
3. Condition Type
4. Size & Connection
* Inlet Steam
* Outlet Steam
* Desuper heater water

5. Materials
* Casing
* Internal
* Bolt and Nuts

6. Location
* Line No.
> Inlet Steam
> Outlet Steam
> Desuper heater Water
* Line Class
* P & ID No.

7. Actuator Tag No.

SOME DESUPER HEATER VENDOR S

1. Fouress Engineering Ltd.    http://www.fouressengg.com
2. Petropages Co.             http://www.petropages.com
3. Komax System Inc.          http://www.komax.com
4. Mazda Limited Co.          http://mazdalimited.com
5. Dongsuh machinery Co.      http://dongsuhmachinery.co.kr

A spray nozzle is used for various applications, ideal for parts and other cleaning applications, cooling and drying, moving of materials, water, and oil cut-off, sludge removal, or other similar operations that depends on a controlled blast of compressed air.
The unit can be fitted to standard piping, or flexible hosing.

HERE ARE TYPICAL INFORMATION TO VENDOR

1. Item No.
2. Quantity
3. Type
4. Size
5. Fluid Service
6. Design Condition
a. Temperature
b. Pressure
7. Operating Condition
a. Temperature
b. Pressure
c. Flow rate
d. Density
e. Viscosity
f. Capacity
g. Pressure Drop
8. Material
a. Pipe
b. Flange
c. Elbow
d. Nozzle
e. Reinforced Pipe
9. Hydrostatic Pressure Test
10. Location
a. Line Numbers
b. Line Class
c. Equipment No.
d. P & ID no.

SOME SPRAY NOZZLES  VENDORS
1. Spraying Systems Co., Japan
2. Dema Engineering Co.         http://www.demaengg.com
3. Technical                   http://www.fluidproducts.com

A static mixer is a device used as an in-line blender, the mixing element create a definable pattern of splitting, rotating and integrating actions to achieve the desired mix.

HERE ARE TYPICAL INFORMATION TO VENDOR

1. Item No.
2. Size
3. Type
4. Design /Operating Condition
* Pressure
* Temperature
5. Maximum Allowable Pressure Drop at max. Flow
6. Calculated Pressure Drop at max. Flow
7. Calculated Pressure Drop at min. Flow
8. Degree of Mixing Required
9. Process Design Data
* Mixing Data
a) Component
b) Phase
c) Flow
d) Density
e) Viscosity
f) Temperature
g) Solids
10. Material
* Pipe
* Flanges
* Element
11. Line Class
12. Location
* Line No.
* Line Class
13. Remarks

SOME STATIC MIXER VENDORS

1. Noritake                http://www.noritake.co.jp
2. Sumitomo Heavy Industry    http://www.shi.co.jp
3. STATIFLO            http://www.statiflo.com.uk
4. Ross Engineering            http://www.rosseng.com

A steam trap serves as an automatic valve, which removes the hot condensate, a byproduct of the heat transfer between the steam and the fluid to be heated in a steam system.  The hot condensate is returned to the boiler to conserve its available heat.  Likewise, it is also important to remove the condensate from the heat system because if left at the bottom of a system, it reduces the efficiency of the heat transfer and it can cause several types of water hammer and thus, damage the pipe system.  Steam traps also remove air and other non-condensable gases as they reduce the efficiency of the heat transfer.  Other gases like CO2 and O2 have to be kept out of the system as well because they react to form the corrosive carbonic acid.  Steam traps open to release condensate, air and CO2 but close to keep the steam in.

    A drain trap serves as an automatic loss prevention valve.  Water or moisture may be carried with the air being used in machinery or some tools.  Presence of these elements is unwanted because it washes away the lubricating oil within these machines, accelerating wear and tear.  In instrument air systems, water can collect dirt causing sensitive instruments to fail.  In compressed air systems, excess moisture and oil tend to decrease the efficiency of the gaskets and hoses.  Removing water, moisture or oil may be done manually or using a drain trap.  A drain trap opens to discharge fluids and closes to prevent air and gas loss.

HERE ARE TYPICAL INFORMATION TO VENDOR
 (SAME FOR BOTH)

1. Item No.
2. Quantity
3. Type
4. Size & Connection (Flange Rating)
5. Fluid
6. Design Conditions
* Upstream Work Pressure
* Temperature
7. Operating Conditions
* Upstream Work Pressure
* Downstream Work Pressure
* Temperature
* Flow Rate
5. Materials
* Body
* Trim
6. Heat Treatment
7. Accessories
* Strainer
8. Installation
9. Location
* Equipment No.
* Line No.
* Line Class

SOME STEAM TRAP AND DRAIN TRAP VENDORS

1. TLV Co.            http://www.tlv.com
2. Nippon Keystone  - 
3. Spirax Sarco Ltd.        http://www.spirax-sarco.com.au
4. Armstrong         http://www.armintl.com
5. Miyawaki Inc.        http://www.miyawaki.net
6. Velan Engineering

Section I - Piping Components

A. Valves - By Anton Dooley
This is a brief overview of different valves and their uses.

B. Pipe - By: James O. Pennock
This is a discussion about pipes, from their history and their uses to weights and grades.

C. Fittings - By: James O. Pennock
This is a discussion about fittings, the different types of fittings and their uses.

D: Flanges - By: James O. Pennock
This article covers ASME B 16.5 Standard Piping Flanges up to 24" NPS

Section II - Equipment Piping and Assembly Applications

A: General Guidelines for Equipment and Piping Location, Spacing, Distances and Clearances - By: James O. Pennock

This article is intended to aid both the novice and experienced piping designer with guidance for plot plan development.

C1: Introduction to Vessels and Vessel Orientation - By: James O. Pennock

C2: Vertical Vessel Orientation - By: James O. Pennock

Section III - Pipe Supports

A. Pipe Supports - Part 1, By: James O. Pennock
This is a discussion about the two basic categories of pipe supports (the primary pipe support systems, and the secondary pipe support systems).

B. Pipe Supports - Part 2, By: James O. Pennock
This is a discussion about the data requirements and the process of selection and qualification for the typical secondary pipe supports.

Section IV - Piping Stress for the Piping Designer

A. Stress Problems and Designer Stress Training - By: James O. Pennock
This discussion is an introduction to the problems found in piping caused by thermal expansion and dead weight, their relationship to the overall piping arrangement and the type of stress related training required for the piping designer.

B: The Problem with Piping "Lift-off" - By CAEPIPE
Contemporary commercial piping analysis programs deal differently with the problem of apparent lift-off of an operating pipe at a rod hanger or a one-way vertical support, such as a pipe on a support rack (… more)

Section V - Field Issues

A. Field trip guidelines - By: James O. Pennock
This discussion is about what to expect when you are asked to go to the field?

Section VI - Pipe Fabrication Shop Issues

A: Checking of Pipe Fabrication Shop Drawings - By: James O. Pennock

B: Pipe Fabrication Shop Assignment Questions and Problems - By: James O. Pennock

Section VII - Management and Supervision

A: Introduction To Line Numbering - By: James O. Pennock

Source: http://www.pipingdesigners.com/Training.htm

 AutoCAD Blocks 

To download, simply click, save to your hard drive and unzip.

Calculation

conversion calculator - Conversion Calculator fom http://www.engnetglobal.com .. download, then hit open to install it on your pc

convert - convert liters to pints, inches to light years etc, download and unzip

Code

Codes & Standards - New pages packed with piping codes & standards … a library at your fingertips

Equipments

Tank volume and weight calculations - tank volume and weights …. no surprise there, excel format

asme fittings - pdf document fittings guide for asme bpe fittings. supplied by ROR

biotech asme bpe fittings - STERiBORE & STERiLEX 10 Tubes, Dimensions & Chemical Composition, courtesy of Global Stainless Ltd

dockweiler SS fittings - dockweiler SS fittings tables in excel

fittings 1 - pdf format fittings guide

fittings 2 - pdf format fittings guide

FRP fittings - Fibre Reinforced Pipe fittings tables in excel

Pipe and vessel data - all the piping info you need, without lugging the folders around, download and unzip

Flanges

Flange Data - Flange catalogue from containing useful flange data. with the kind permission of Texas Flange. (www.texasflange.com)

Flange and valve pressure Vs Temperature Ratings - A Microsoft Excel Worksheet of the pressure temperature limits of various Piping Flanges and Valves. Kindly given by Dennis Kirk Engineering

Flange info - A link to a page about flanges, quite a good overview to explain what they are to the layman.

General
Agency Database - Find an agent in your country

contract - standard contract for services

glossary - A - Z of piping abbreviations at your fingertips

Piping

Lined Pipe - pdf format line pipe info

overview of process piping - overview of process piping systems. pdf document from http://www.asme.org

pipe chart - info on pipe weights, wall thickness etc

pipe spacing chart - 150#, 300#, 600# up to 24" - Thanks to Mark (pdf format)

pipe spacing chart (welded) - what it says

pipe spacing chart (150# flanged) - same as, except flanged

Pipe Spans - Excel file with pipe spans, full, empty, insulated and differing schedules.

U.S. Army piping manual - PDF File, it's exactly what it says it is.

Valve

Learn about Valves - Links to a great site to learn about Gate, Globe and Check valves.

Source: http://www.pipingdesigners.com/Tools.htm