Document zzaaKpp3wJ8eB9aNDkReXe1og

306 Controls and Instruments Leslie Regulators and Controllers 316 GRANT AVE., LVNDHURST, NEW JERSEY Leslie offers a complete line of regulators, reducing valves and controllers. All units are built to provide the utmost in long-life, reliability and interchangeability. Designs Leslie Pressure Reducing Valves Automatically maintain a constant reduced pres* sure of steam, air, gas or liquids. Single seated, tight closing. Respond instantly to load changes, Renewable, interchangeable pacts. Stellited seat ing surfaces. Complete overhaul permitted with out removing body from pipe tine. Made in bronze, cast iron, cast steel or cast alloy steels. Sizes V4" to 6*. Other units available for constant differential pressure, unloading and for remote adjustment. Inlet pressures to 1500 p&i steam at 9S0*F. Reduced pressures range from 2 to 600 psi. SEND FOR BULLETIN 5302-B incorporate the most advanced techniques and are based on Leslie's 60 years of experience in supplying regulation and control equipment To locate your nearest Leslie factory-trained engineer, look in theYellow Pages under "Valves" or "Regulators." Leslie engineers are part of a world-wide organization with headquarters in or close by these principal cities: Leslie Low Reduced pressure Steam Reducing Valves New simplicity in pressure reducing valve design for steam heating and processes. High accuracy of regulation and years of maintenance-free per formance. Only 2 moving parts. Full capacity bodies . no dirt catching parts . . . ideal for poor steam conditions. Choice of air loaded valve or the spring loaded Leslie-Topper with mechani cal pilot entirely out of the path of steam. Inlet pressures up to 500 psi, 550*F. Reduced pressures from 0 to 299 V4 psi for the air loaded valves or ranges from 2'to 35 psi for Leslie-Toppers. Cast iron: screwed, 125 or 250 lb. ASA Flanged, Bronze: screwed, 150 or 300 lb. Flanged. to 4" for air loaded and Vh" to 2" id Leslie-Toppers. SEND FOR BULLETINS 561-B AND 582. Leslie Temperature Regulators Designed for a wide range of applications. Vary the flow of steam, hot water or cooling water to heater or process to automatically maintain con stant temperature.. Rugged 50*F. or 100*F. ad justable range thermostatic element. For small end large flows, direct operated,direct and reverse acting or with "Duomatic," two-element (pressure and temperature) control. For driers, fuel oil heaters, instantaneous and storage heaters, kettles, ' open tanks, ovens, process heaters, degreasing machines, steam tables, sterilizers, storage beaters, urns, etc. SEND FOR BULLETIN 5307 - Leslie Pump Pressure Regulators Maintain predetermined constant or differentia! pump discharge pressures. Accurate control to compensate for frequent or sudden load changes. Assure freedom from hunting, cycling and overregulating. Available for either reciprocating or turbine driven pumps in a wide choice of body materials; inlet pressures 40*1500 psi and pump discharge - pressure ranges 5*25 psi to 100*2000 psi. See why most industrial, marine and naval engi neers place thtir confidence in Leslie--the world's most complete line of pump pressure regulators. SEND FOR BULLETIN 5306 Laslle Diaphragm Control Valves Control flow of steam, liquid, air or gas. Tight shut-off. Operated automatically by air, water or oil pressure supplied from a Control Pilot or from other pneumatic controllers or instrumenta tion. Available in unbalanced or fully balanced types, single and double seared, 14-16' in cast bronze, cast iron, cast steel, aluminum, stainless steel and alloy steels. Primary service ratings to 2500 psi, 1000*F. SEND FOR BULLETIN 5304 Leslie Floatless Level Control Provides accurate control of liquid level (plus or mjn>>5 l* water column). Eliminates problems caused by troublesome linkages, torque tubes, floats and miffing boxes. Simple design provides steady, positive, precise control even under diffi cult conditions. Consists of Level Control Pilot and suitable diaphragm control valve. Available with either fixed or adjustable proportioned bands. SEND FOR BULLETIN 583 Leslie Control Pilots Simple mechanical controllers employing constant supply of clean air, gas, water.or light oil at. 20-22 psi to produce a variable output or loading pressure of 0*20 psi in response to a level, pres sure or temperature change, applied to operate a diaphragm control valve or power cylinder actu ated valve. SEND FOR BULLETIN 5303 Leslie Sell-Cleaning Strainers Recommended to protect all equipment in pipe line from dirt and foreign matter. Cast iron, bronze, cast steel, carbon moly, chrome-moly, stainless and forged steels. Strainers with screwed, flanged, socket and butt welded connections; sizes V%* to 10" inclusive. Ratings to 2500 lb. ASA. Screens furnished in Monel and stainless steel with various perforations and meshes for steam, liquid, gas (including liquified gases), air and oil services. SEND FOR BULLETIN 5303-A Controls and Instruments 307 IT1AXITROL company 12200 Beech Hoad, Detroit 39, Michigan GAS APPLIANCE PRESSURE REGULATORS High capacity, Straight-Thru-Flow type regulators for low pressure service on residential heating appliances, commercial and industrial gas-fired equipment. Rubber seat poppet type regulators for precise low-flow control--even the smallest pilot flame. For residential appliances, MODEL RV 10* RV-42 NOMINAL SIZE (INCHES) OUTLET PRESSURE ADJUST MENT INLET OUTLET INCHES ex. Vi Vi 2-5 Vi H Vi Vi 2-S 2-5 2-5 Vi Vi Vi 3-4 3-4 Vi Vi Vi Vi 34 3-4 3-4 2-5 K Vi 2-5 3.S-4.5 H y. 3.5--4,5 Vi Vi 2-5 y< * i 1 25 .2-5 2-5 m IVi m IVi ZVi 33 2-5 2-5 2-5 2-5 25 25 PRESSURE 0R0P CAPACITY H 8.3' wx. Praam Dnp aD/to SF 15 81 81 88 81 81 88 81 81 88 126 135 126 135 170 270 270 450 460 676 705 1250 1260 2030 2030 4200 4900 eta/to Bts/to. (COBta/caU SBSte/nft 1.7 9 tr Gn MatrGs 11.000 7,450 60.000 60,000 65.000 . 40.500 40.500 44,000 60.000 60.000 65.000 40,500 40,500 44.000 60.000 60.000 65.030 40,500 40.500 44,000 93000 100,000 61,000 67,500 93,000 100.000 61.000 67.500 126.000 85.000 200,000 200000 135.000 135,000 333.000 340.000 225.000 230.000 . 500,200 521.700 338.000 352.500 . 925.000 932,400 625.000 630.000 1.502.200 1.015.000 1.502.200 1,015,000 3.108.000 2.100.000 3.626,000 2.450,000 REGULATION CAPACITIES Bta/to-80 Bti/eatt, 8-291:G** (MAXIMUM) (MINIMUM) 17,000 100,000 100.000 100.000 100,000 100,000 100.000 100,000 100:000 100,000 152.000 174,000 152/100 174.000 196,000 310.000 310,000 517,000 527.000 775.000 810/100 1.430.000 1.450.000 2.330.000 _2.330.000 4,850.000 5.650,000 1.700 10/00 10.000 10,000 10.000 10.000 10.000 10/00 . 10.000 10/00 15,200 17.400 15,200 19.600 31.000 31.000 51.700 52.700 77,500 81.000 143,000 145.000 233.000 233.000 485.000 * A.G.A. certified for main burner and pilot load applications. Pressure Setting: Standard outlet settings are ZS>~ wx. for all models except the following: RV-IO............................................................................ 3.0in.w.c. RV-41K. RV-41A............... V............................... 4.0 in. w.c. RV-110.......................................................................... 4.0 in. wx. Upon request, any regulator will be adjusted to any other pres sure within range of standard spring at no extra charge. Inlet Pressures: Can be satisfactorily operated at inlet pressures up to one psi. Higher inlet pressures permissible under certain circumstances. Consult factory. Accessories: A complete line of accessories including: Maxi-grip rubber sleeve and conventional double-compression vent tube connector fittings; vent limiting orifices; automatic safety vent limiting devices; surge arresters; vent screens. Celon plastic caps. ELECTRONIC MODULATION FOR FORCED AIR GAS FURNACES Only practical means of providing in stantaneous modulation of gas flame to heat ItfSs in the home. Re mote .control Seleetrastat (lower left) sets and senses living area tempera ture. Alt-electronic amplifier located adjacent to furnace receives signal from Seleetrastat. Amplifier (left) powers com bination modulator-regulator valve (right) which replaces conventional regulator on fur nace manifold. Provides infi nite proportioning from foil fire to 1/3 fire; responds in one second to changes as small 1/10 degree. Mo hystere sis--eliminates temperature droop and drift.