San Francisco : Architect and Engineer, Inc · leaf 396
which a \-100-K is properly installed can hack-svphon regardless of the degree of vacuumor the suddenness with which it develops.The Y-100-B will not leak, even if theflow is restricted to a trickle, and willwithstand any degree of back-pressurethe fixture may produce. The V-100-13 uses the same…
Architecture · Building
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