. Reliable vacuum and vacu-vapor heating equipment . of the V/ift and l^No. 1 Vacu-Traps on next page.) The thermal membersare heavy gauge phosphor bronze, constructed in strongestpossible manner. The thermal members are filled with avolatile liquid which expands or contracts them, as tem-perature raises or lowers. The removable seat at bottomof Vacu-Traps is solid brass, and rounded, so that dirt can-not accumulate on it. The superior design and extra heavy construction ofVacu-Traps insures durability under expansion and con-traction, without danger of breakage. The Vacu-Traps are made in H,
. Reliable vacuum and vacu-vapor heating equipment . of the V/ift and l^No. 1 Vacu-Traps on next page.) The thermal membersare heavy gauge phosphor bronze, constructed in strongestpossible manner. The thermal members are filled with avolatile liquid which expands or contracts them, as tem-perature raises or lowers. The removable seat at bottomof Vacu-Traps is solid brass, and rounded, so that dirt can-not accumulate on it. The superior design and extra heavy construction ofVacu-Traps insures durability under expansion and con-traction, without danger of breakage. The Vacu-Traps are made in H, %\ 1, 1M and1H sizes. The J^ M and 1 sizes are furnished inbrass or nickel plated finish. The 1M and l^ Vacu-Traps are painted black. See page 79 for dimensions and weights of the Vacu-TrapsRoughing in dimensions are given on page 81 PERMANENTLY ADJUSTED Each Vacu-Trap is given a 5 hour working test, andis properly and permanently adjusted at our factory. Noadjustments are necessary when installing, or afterward. Forty-Nine THE RELIABLE RETURN LINE. No. 1 VACU-TRAP (lji and 13^ inch sizes) These low pressure Vacu-Traps are designed especiallyfor draining condensation and relieving the air from blastor dryer coils. They can also be used with indirect radi-ation. The style of construction and operation is identicalwith the other Vacu-Traps, described on the four preced-ing pages. The openings in the seats are full Y% inch in diameter,which always insures rapid draining of condensation andquick air relief. The covers of these Vacu-Traps are boltedto the body and can be quickly removed without breakingconnections. They can be installed where the space isvery limited on account of the flanged screw connections. These Vacu-Traps are exceptionally durable. The bodyand cover are heavy iron castings, securely fastened to-gether with brass cap screws, with a washer between. Thethermal member is heavy gauge phosphor bronze. Therod brass seat and all working parts are renewable. Asthe abov
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Keywords: ., bookcentury1900, bookdecade1910, bookidreliablevacu, bookyear1915
