Impulse Testing
Fuel Systems &
Contamination Research

Most industrial machinery dealing with fluids experience cyclic pressure load from time to time. Unlike the steady-state load, cyclic load can cause more severe malfunctions or damage and eventually shortens service life of the machines.

image: High-pressure impulse profile

High-pressure impulse profile

Test Stands for Impulse Testing

Southwest Research Institute (SwRI) staff have developed three dedicated test stands to perform impulse tests to help component and machinery manufacturers to evaluate the cyclic load environment. These impulse test stands cover a very wide range of pressures such as:

  • Low Pressure Range: 0–300 psi
  • Medium Pressure Range: 0–4,000 psi
  • High Pressure Range: 0–30,000 psi
image: Low-pressure impulse profile

Low-pressure impulse profile

Test stands are carefully developed and can be used to conduct impulse tests in accordance with ISO, SAE, and military specifications. They can also be used to conduct nonstandard or industrial-specific impulse tests to evaluate components such as:

  • Fuel hoses
  • Oil hoses
  • Seals
  • Fuel rails and injectors
  • Pressure sensors
  • Fuel filters
  • Oil filters

Related Terminology

industrial machinery  •  cyclic pressure load  •  impulse testing  •  cyclic load evaluation  •  ISO compliance  •  SAE specifications  •  MIL specs  •  component evaluation

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Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 11 technical divisions.
11/26/12