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Pipe sizing is a crucial aspect of steam system design. This page offers detailed advice on standards, schedules, materials and sizing for various saturated and superheated steam duties.

There are a number of piping standards in existence around the world, but arguably the most global are those derived by the American Society of Mechanical Engineers (ASME) and the American Petroleum Institute (API), where pipes are categorised in schedule numbers.

These schedule numbers bear a relation to the pressure rating of the piping. For nominal pipe size NPS 6 and smaller, Schedule 40 (sometimes called 'standard weight') is the lightest that would be specified for steam applications.
Only Schedules 40 and 80 cover the full range from NPS 1/2 up to NPS 24 and are the most commonly used schedule for steam pipe installations.

Note.. For more information about steel pipes, Nominal Pipe Size, pipe schedule, fabrication, lengths and ends of pipes etc. see main Menu "Pipes".

Pipe material

Pipes for steam systems are commonly manufactured from carbon steel ASTM A106. The same material may be used for condensate lines, although copper tubing is preferred in some industries.

For high temperature superheated steam mains, additional alloying elements, such as chromium and molybdenum, are included to improve tensile strength and creep resistance at high temperatures.

Piping lengths from the factory not exactly cut to length but are normally delivered as..

• Single random length has a length of around 5-7 meter
• Double random length has a length of around 11-13 meter

Product Details:

• Ducts are passages used in heating, ventilation, and air conditioning to deliver and remove air.

                                                                        or

• The Duct system carries air conditioning air from air conditioning equipment to air distribution points and carries return air from the room to air conditioning equipment for reconditioning and recirculation.    
• Example: Supply air duct, return air duct, exhaust air duct, and fresh air duct.
• Supply air duct: It is used to supply air into the room.
• Return air duct: It is used to remove the air from the room to maintain pressure inside the room.
• Exhaust air duct: It is used to remove smoke, odor from the kitchen, and toilets.
• Fresh air duct: It carries the outside air,

Product Details:

Watline Systems Pvt. Ltd" is a well known manufacturer, supplier, distributor, wholesaler and trader of Process heating system, water, waste water treatment and heat recovery system.

Additional Information:

• Item Code: Tank