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Let AFT Impulse make code compliance easier and safer for you  

 

CODE COMPLIANCE &
WATERHAMMER STANDARDS 

"Surge calculations should be made and adequate controls and protective equipment shall be provided so that the pressure rise due to surges and other variations from normal operations shall not exceed the internal design pressure at any point in the piping system and equipment by more than 10%."
(ASME B31.4-2012 para. 403.3.4)

Let AFT Impulse make it easier and safer for you

 

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HOW AFT IMPULSE CAN HELP ENGINEERS COMPLY WITH ASME CODES

Engineers are often responsible for designing systems that comply with codes and standards.
In recent years codes that apply to waterhammer and surge pressures have become more prominent. Increasingly 
AFT Impulse is being used to help engineers comply with such codes.


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AFT IMPULSE HELPS
RESOLVE OVERPRESSURE
SAFETY ISSUE BY MODIFYING
SUBSEA VALVE OPERATIONS 

This case study provides an in-depth look at
how go-to solutions are not always applicable to waterhammer scenarios. 


Read how this Impulse user aimed to keep overpressurization under 110% of the design pressure. This simply could not be solved by extending valve closure times. His analysis expanded to adjustments in upstream valves.


TRAINING

No matter your user level with AFT software products, we have training and assistance available
to help you continue your education, or tools to advance your knowledge to expert levels.

 
Webinar Image Pumps as Turbines Image

WEBINAR
AFT Impulse 9,
You're In For a Great Time!

Watch the Webinar

We have yet again taken AFT Impulse many steps forward with our newest version that contains some powerful AFT Impulse specific new features including:

  • Dramatic re-design of the Gas Accumulator
    junction with the ability to calculate liquid heights
    for various accumulator geometries
  • Minor losses for elbows, orifice plates,
    venturis, and screens can now be
    explicitly modeled as junctions
  • Valve transients can now be modeled
    as open percentage vs. time in addition
    to the traditional Cv vs. time or K factor vs.
    time methods
  • Multi-scenario graphs can be plotted
    when scenarios use different pipe
    sectioning and time steps

There are many other new features that enhance the users experience and efficiency of the software like the new Analysis Setup window, Library Manager which was created from our previous Database structure for customization, Warning and Design Alert re-organization, improved non-Newtonian fluid modeling that includes the Herschel-Bulkley method as a new viscosity model, and many others.
 

WEBINAR
Pumps as Turbines:
The Pump that Produces Electricity

Watch the Webinar

Pump As Turbine (or PAT) is a pump that can be used as a turbine to produce electricity. The PAT takes advantage of the fact that a motor can be used as a Generator if you reverse the process. This webinar will discuss using PAT, Turbine and Power Curves, Decoupling Speeds, No Load Curves as well as demonstrate how to model PAT in AFT Fathom (with XTS) and AFT Impulse.
















 

 
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