Document N26dZopvRbw6gMQrkvVykJ1E

More EQUIPMENT NEWS Duct Liner -jg 046 Flexible fiberglas liner iar^j dllionlng or warm air ducts he* reduction efficiency and thernul^jj ing properties. When oicd 'insijrfu metal surfaces act a* a vapor hairitt& Liner may bo cut to match i&ifB formed sheet* end adhered to t&'tfn which ore then formed, prodiei^uj with liner already Installed... U|JVj prene costing on liner prevents high-velocity air. reduces frict|oai|^fl Owens-Cnmlng Fiberglas Conttl ledo 1, Ohio ^grlwoul V-10 Flow Regulating Valves Sash maintenance costs in systems with \qb pressure drop or flashing condensate .... . New Wire Ropes Hove - Plastic or Spring Cores BOS * Solid plailie-core wire ropet, left, serve acme condition* better than hcmpeeater ropes. Except (or the core, they are similar to ordinary wire ropes. The plastic core Is not affected -by mois ture, acid, caustics or other destructive gents found (n many applications and the corn retain their resiliency over a long pe riod. These ropes sre available from % to several inches in diameter, with 3 to 8 strands of 19, 25 or 41 wires each. They were developed (or use In cable-tool drilling of oil and gaa well* but are applicable to many other industrial uses. Another new wire rope made by the tame company hat a closely-colled sice) spring for its core, right. The spring gives greater strength against crushing, plus the flesUtil ity of a hemp core. Because of the hollow spring center this rope can hold a largo amount of lubrieant, keeping inner part* from rutting and wear ing- It returns readily to original thapo and . diameter when unloaded. This rope It available In 94 to 2 In. diameter*, and c*n be built In most wire rope constructions. It was developed for oil and gas well rotary-drilling tip, but ean be used for most other applications where wire or hemp-center ropes are applied. Jonet & Laughlln Steel Carp, Gateway Center, Pittsburgh SO, Pa. Trlplc-chcc.k Lube FUtlnjyj B47 * ThlslubrleationfitUngfeatani.lv. ball checks augmenting the stsftdarddaaj valve at lhs lap, thus giving prUkajl 12 against escape of line fluids and tnaJdagTI pracUcolly impoulble for foreign mAMi|i>- *'/. foul all checks at the same lnst*t>$41?r'; | la especially deslgoed for use oa plug valvei, where extreme ptessuto^j cneountercd. $L The triple check fitting replaces.i) brkant screw, so lubricant moy be tajsg into the valve directly from a bs*M& or bucket pump, cutting lubrieatioojjg Stewart*Warner Corp, 1826 Tkwy, Chicago 14, 111. !iu!!iSSmmEiNU<N Iln reducing saturated steam-particularly from pres* lures above 2)0 piig-oioUture Is thrown out during expansion, This moisture creates severe "sandblasting." In pressure reduction, steam expands along Constant Entropy Une as shown by broken black line. Even chough initial and final conditions are superheated, steam may expand deep In moisture tone.This moisture, traveling at extremely high velocity, qukklydestroys ordinary valves. k 4 Swartwout V-10 valves are scientifically designed -to handle liquids at high; pressure drops and also under flashing eoadithns, All direct impingement is '.eliminated and longer valve lift is assured two wayi-by better flow design, plus use of materials specifically selected for the service - involved. As a result, SwartwouJ V-10 valves outperform other oaloet h similar service. Swartwout POWEft PLANT EQUIPMENT Condensate Pump B4S * Haw condensate pump does not re quire n pit even though return pipes are as low as a foot above the floor. Unit handies 8000 aq ft-of radiation at 20 psL, Pump Is all-bronse centrifugal construction, con nected through a fleiible coupling to a V&'hp single-pbaae motor, Walter I| Eagan Co, Ine, 2SS6 Fair* mount Ave, Philadelphia 30, Po. IM Chemical Pump 014 * New fractional horsepower Chempump is recommended (or handling cotre-' sive, radioactive, ond highly volatile fluids, end for vacuum processes. Basle principle permits the fluid being pumped to enter part of tho motor. Stator and winding* are Isolated from the fluid by corrosion-resistant, nonmagnetic alloy cylinder inserted in the air gap. The rotor is hermetically sealed with the same alloy. Bulletin C 1000. Chcmputnp Corp, Station D, 1300 E Mermaid lAne,'Phltndelphla 18, Pa, READER SERVICE SECTION Hard*Surfacitig KlectrodfltjM 835 Typo W-98 slectiodo l* * covered flaoe-hardanlng rod that csjM uwd in all positions. Arc la of spray type. The electrode ia deslfsrfjM build-up work and hard surfacing'*!*]^ cations where the depoiitad maul < . machined or flame hardened. Mu??/ turer Ttcommends It where a higher .Wjj neas deposit is desired than that obj able wilh electrodes used, for under bj^. Hardness is generally approxinutdr.? Brlnell as welded, and is ssid harden to about 350 Drinell. I' ft**-* boiler blowdown servke is extremely rigorous, closed, there Is full pressure drop across.valve; when i'^**06****1 snd flashing rapidly increase Une loss and .l^0Wflhlr drop across the valve. The variations in ^ wtxke critical since valve mutt handle 7* ,%#ions. A lo unirated liquid drainage service, such as on high pres* sure extraction type bearers, water at saturation temperature flashes loto steam when pressure is reduced. Exclusive scroll inlet end greduslly expanded straight outlet of V*I0 valve derigo permit a eliding action instead of direct impingement thus preveoting corrosion-erosion. Ceneral Electric Co, Schoneetad^ N. Y. tSUUETIM $-20811 THE SWARTWOUT COMPANY. 18511 EOCIID AVENUE. CLEVEIAND 12, OHIO (Continued on page 160) 5m?-.AU0UST 1953 I