Issue 22 and Volume 60.

QUESTIONS AND ANSWERS Readers of FIRE AND WATER ENGINEERING are invited to send in questions which will be answered in the order in which they are received. Area of the Safety Valve. To the Editor: How ran you tell if the area of the safety valve is of a proper size for your boiler? Is there any method of checking this up which can be used by a layman? If you know of any, 1 should be very pleased to have you give them through your Questions and Answers column, for I am sure there are a number of other engineers of steamers who have often been confronted with the same question. Do any of the manufacturers use the scale bean type of safety valve on their fire engines? Awaiting your advice through your Questions and Answers column, Respectfully yours, F. G. Butte, Mont., November 14th, 1916. (Answer: The proper…

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