Document gbJLX11GGpjM2NLMgkwREjjqe

THE ZaJlea Stainless Steel Expansion Joint shown above is one of several used in the process steam distribution line of a large Western refinery . . . installed for dependable, economical operation. In refineries, in power plants, in chemical process plants-- throughout industry--Zallea Expansion Joints are rated first choice as the ideal medium for absorbing movement in pipe lines due to thermal changes. These features tell why more and more engineers and designers insist on Zallea when tney want the best: Mori tamotnicai than txPunsioo ' Avtufr--the cost of insulating and installing a bend alone is fre quently more than the cost of a Zallea Expension Joint. No maintenance-- having no fiacking they may be used n underground lines with out manholes.' Lout thrust against #nrAon--re quire only 1/10 the force re quired to compress some slip type expansion joints. An expansion joint /or *Very Kpe o) service--special types >r combined axial and lateral movement. Shorter Jace to Jace dimen . tbnt--enables installation In close quarters. Elements may be made of stain less steels, cooper, or any other metal required. Hydraulic method of forming assures uniform wall thickness throughout corrugations. e As easy to install as an ordinary Ganged or welding fitting. 0 Traverse range from fractions of an inch up to 7<A" (n a single unit end 15" in a double unit. Pressure range from vacuum to 300 lbs. in standard uniu. Up to 1000 lbs. io special units. e Temperature range from tubaero to 1600* P. Catalog 47 contains complete information on all Zallea Expan sion Joints. We would be pleased to send you a copy. write todayl Zallea Brothers, 814 Locust Street, Wilmington 99 Del. tb8 (tSte) companies under the stipulation any and all savings derived by the pany will be passed on to the uT consumer, with the government as the regulator. Belore outlining the relative ~ of the two plans, Mr Vennard cussed: 1. Combination flood-control ~ dams. 2. Peaking power in the SoaL 3. Section V of the Flood Control X ol 1944. From his analysis of the flood-coair power problem in the Southwest, reaches the conclusion that the pInterest is best served by: 1. Lot men in government attend (A) the development of America's ri ers, including building flood-eon 'dams where necessary. (B) regulati the electric utility business, acting umpire to insure fair play, sod to 1m after the public's interests. 2. Let men in business attend ta.flT ning the power business under ' 'American free-enterprise system, under government regulation. Plso will accomplish these objectives' guarantee that the public will rt oil iba benefits. MPC Paper. Sediment Transportation In Stm In Relation to Power Plant Operalj by M C Boyer, research engineer, I Institute of Hydraulic Research, University of Iowa. For SO years,* have been developed intensively transportation of goods, flood coolr irrigation, increased power and si other purposes. Tfaeso develops hove impressed upon man the portance of sediment and its eflects on his work. Ho is coming to r the fact that future usefulness of; of the largest reservoirs he bas atructed is doomed to serious in meat because sediment will ineri fill them. To maintain certain for navigation, dredging and river-channel modifications are tinually required. Sediment interferes with the opt lion of steam power-plant eondcu^ cooling systems. It depoiiti i 1 quiet waters of o forebay. In tbs p leading from the stream, or in ^ wells from which the cooling pumped. The sharp particles of fl8 cut the blades and bearings ofolfMjJS ing pumps and the cooling a/*1* regions of high velocity. It ii P*r that the chemical composition solutes in the water has a bear* the phenomenon ol deiincificetion- After outlining the preble* \ dated with sediment control, discusses sediment--its nstuto POWIR Oriob*f