Medical Gas Piping

Card Set Information

Author:
iLLian
ID:
289300
Filename:
Medical Gas Piping
Updated:
2014-11-15 18:25:54
Tags:
Plumbing 4th Period
Folders:
Plumbing
Description:
Special Applications
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  1. What two types of copper tube can be used for medical gas piping?
    Type K and L, hard tempered with exception to underground to allow for bends eliminating fittings and possible leaks.
  2. What is the minimum size of copper tube permitted for medical gas distribution?
    1/2" for brazing, anything smaller must be threaded and can not be concealed.
  3. Medical gas piping must be free of ________ or ________ that could combine with the contents, resulting in an explosion or fire.
    Medical gas piping must be free of _oil_ or _grease_ that could combine with the contents, resulting in an explosion or fire.
  4. Small diameter piping under 1/2" may be joined using ________ fittings.
    Small diameter piping under 1/2" may be joined using _threaded_ fittings.
  5. The approved method of joining copper tube and fittings must be joined using ________.
    The approved method of joining copper tube and fittings must be joined using _silver brazing_.
  6. Flux is permitted when joining ________ metals.
    Flux is permitted when joining _dissimilar_ metals.
  7. What gas must be present in the piping system while joints are being brazed?
    nitrogen
  8. What is the maximum horizontal support spacing for 1/2 " pipe?
    (medical piping supports can vary from standard supports for piping)
    1.8 metres or 6 feet
  9. What is the maximum horizontal support spacing for 3/4 pipe?
    (medical piping supports can vary from standard supports for piping)
    2.4 metres or 8 feet
  10. Colour coding for oxygen piping is _________ lettering with a _________ background.
    Colour coding for oxygen piping is _green_ lettering with a _white_ background.
  11. Colour coding for nitrogen piping is ________ lettering with a ________ or ________ background.
    Colour coding for nitrogen piping is _black_ lettering with a _white_ or _silver_ background.
  12. The approved cleaning materials for degreasing copper tube and fittings are ________ and ________.
    The approved cleaning materials for degreasing copper tube and fittings are _trisodium phosphate_ and _sodium carbonate_.
  13. What temperature must water be when used for cleaning and rinsing copper tube and fittings?
    HOT
  14. What is the minimum test pressure for a medical gas distribution system?
    1030 kPa (150 psi)
  15. What is the maximum test pressure for a medical vacuum system?
    425 kpa or 60 psi
  16. What is the minimum test pressure for a nitrogen system designed to operate at 120 psi?
    120 psi x 1.5 = 1250kpa or 180 psi
  17. During the 24-hour test, is any pressure fluctuation permitted in a medical gas piping system?
    It is only allowable if it is caused by a change in the ambient temperature in the areas around the medical gas piping.
  18. To complete a cross-connection test on each medical gas piping system individually, the piping must be pressured to 345 kPa (50 psi) using ________ or ________.
    To complete a cross-connection test on each medical gas piping system individually, the piping must be pressured to 345 kPa (50 psi) using _oil free air_ or _oil free nitrogen_.
  19. Each system must be tested at every ________.
    Each system must be tested at every _terminal unit_.
  20. All medical gas piping systems and medical vacuum systems must be provided with a ________ in case of power failure or low supply in the primary system.
    All medical gas piping systems and medical vacuum systems must be provided with a _backup system_ in case of power failure or low supply in the primary system.

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