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Author Question: Briefly describe the construction of a bi-metallic device. What will be an ideal ... (Read 18 times)

jon_i

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on: Jul 26, 2018
Briefly describe the construction of a bi-metallic device.
 
  What will be an ideal response?

Question 2

What are the typical pressure settings for a pressure-reducing valve and system relief valve in a hot-water oil-fired boiler?
 
  What will be an ideal response?


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millet

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Reply #1 on: Jul 26, 2018
Answer to Question 1

Bi-metallic devices consist of two different types of metals bonded together. The expansion and contraction rates are different for each type of metal. The resulting warping or distortion of this action is connected via mechanical linkages to the indicating pointer.

Answer to Question 2

The pressure reducing valve is normally set for 12 to 15 psi and the system relief valve is set for 30 psi.


jon_i

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Reply 2 on: Jul 26, 2018
Great answer, keep it coming :)

AngeliqueG

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Reply 3 on: Yesterday
Gracias!

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