Document Ok58qrwJ2vp7GqqyNNbOedzQ

I Strand's Continuous Boiler Blow* down Auemblj' Includes a Strong block steel Evrtytc* Valve (1), a trainer (2) and an orifice block (!}, cu4(0mbullt and accurately lied far your own Job condition*. The assembly Is essentially two orifices arranged in series. Ttio first orifice (valve) Is variable the second is fixed. Correct proportion* Ing of orifices provides extremely accurate control and reduces wire drawing. Alta.available In (Id* itrtw and yfc. Strong Evrtyte steel valves have special Anum-Metl X| scats and discs of 750 Brlndl surface hardness far long life. Available for pressures to 1500 psi and temiwrotiires to 800* F. or 6000 psl oon*ehoek cold service. Let us custora-sl.se your eontlnuotis blowdown system. Send for Catalog No. 103 and our Continuous nlowdown Check-Chart lodav l thl.TMins STRONG, CARLISLE A HAMMOND COMPANY SS 1393 Wsif 3rd ftrsst Ctsvetond 13, Ohio 152 (321) 1 reduced boiler maintenance dee to J w4t6f1roakeup. should be cotutder^ fa making a final decision. Beaty { Dentingt Brens, N. Y. Heat Gain Shown .... c s cylinder, 6 ^ diameter ond 65 It long, U appro*, mately 1837 cu (L Assuming occupied. by concrete blocks and tnitb Is 40% ol cylinder volume, ne*o fa, the cylinder will occupy 60%, or eu ft, Steam at 100 psl weight sbom 0.255 lb per cu'ft, hence there are 280 (b ol steam to exhaust from each eylM der when the curing. Is completed. Whh two cylinders there are 560 lb anilshk (or use each 6 hr. Heat eonient of the steam would t* approximately 560x970 s 54300 (fo. If the boiler efficiency is 75%, boiler output per 6-hr period U (9000x9000) 4.. 4 s 20,SO,000 Otu. Therefore the bcu gain la 545,200 20,250,000 a 1H% If the exhaust steam ia used to beat feed* water. If the exhaust steam U used, a task haring a capacity of 4230 lb or 600 gil is required. This Is equivalent to a usk about 4 ft in diameter by 6.5 ft long. Cost of sueh 0 tank plus insolation sad piping will probably amount to 91000. Whether the investment la worth wkOe Is s problem for management. HIP exo adjust the figures In the above calculations since no allowance vu made for the heat the blocks weald' give op in cooling from 308 to 212 P. No consideration was given to the best loss from the feedwater lank and pip ing, at it would probably be balanced by tho gob from the blocks. A feedwater-eterage tank large enough to use up the available exhaair team will utilise it effectively, though It may not be worth while from as economy standpoint. Irs A Dateha', Plttty River, Vs. Believes Open-Type .Hester Is Best Bet In visw of the short exhaust period. I would not use any elaborate hookup to recover heat from the exhausting learn. I suggest a simple, open-type feedwater healer to have available at all times a supply of hot feedwater for the boiler. HtF could use 0. pressure-reducing valve to keep steam pressure at 10 P^. and an automatic valve to control ste* to the hot-water. This valve should b* actuated by a thermostat immersed la the heater to the steam will be on oolf when needed. Set the thermostat any desired temperature feedwater. B* POWER Mar 6 to realAmericans Why is it necessary to sell America to Americans? One of the reasons is. not until now did the people ol this country have to be Bhown that they lived in the most favored and most favorable country on earth. Where are the salesmen to do this job? Every community has its leaders who have this responsibility, not only to themselves, but to their families, their community and their country : ' 1 ai The Youngstown Sheet and Tube Company General Offices--Youngstown 1, Ohio Export Ollices-500 Fifth Avenue, New York MANUFACTURERS OF CARBON ALLOY AND YOLOY STEELS SjjJO PINI3HBD CARBON AND ALLOT BARS - SHEETS . PLATES . WIRE - TIE PLATES AND SPIKES . LKTROLYTtC TIN PLATE COES TIN PLATE . PIPE AND TUBULAR PRODUCTS . CONDUIT . BARS - RODS. May 1940 in j1