Mechanical equipment of buildings; a reference book for engineers and architects (1916)
Harding, Louis Allen, Willard, Arthur C. (Arthur Cutts), 1878-1960 · New York Wiley · leaf 261
force, such as the power required to move the valve and the force required to overcome theinertia or accelerate the reciprocating parts of the valve gear, tends to disturb thisequilibrium. 238 POWER PLANTS AND REFRIGERATION … Fig. 7. Double-Ported Balanced Valve. The force required to move an unbalanced slide valve is considerable, being the product ofthe projected area of the valve, steam pressure in the chest and the coefficient of friction of a lubricated surface. The accelerating forcerequired to reverse the mo-tion…
Building · Heating · Ventilation
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