Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 234
water in the system.With this system, two safety-valves with non-corrosive seatsshould be used, unless some well-tested device of demonstrated meritdesigned especially for this purpose is adopted. The advantage of the closed-tank system is that smaller radiatorsmay be used, since they can be heated… … rig. 106. ExpansionTank Connections. 194 STEAM AND HOT WATER FITTING 61 strain; and in case of rupture in any part of the system, much greaterdamage results than would he the case with an open-tank system. System of Forced Circulation. In extensive systems the wateris kept in circulation by pumps,…
Architecture · Building · Carpentry
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