Document ZJ0gR6zpOEbKMx5dMV0QBRzXZ

Heating Systems Specialties Armstrong Machine Works R,'prr;rvcs 851 Maple Street Three Rivers, Mich. Principal cities Armstrong offers two types of traps for heating, air conditioning, and steam distri bution service. Standard Inverted Bucket Traps, the type originated by Armstrong, are non airbinding and self-scrubbing. They are used for low, medium, and high pressure service where relatively little air must be handled along with the condensate. Their free-floating lever design makes it possible to open very large discharge orifices com pared with the size of the trap itself. Armstrong Blast Traps are used where large amounts of air must be vented quick ly when steam is first turned on. They have several advantages over the conven tional float and thermostatic trap. 1. The Armstrong Blast Trap has but a single orifice to be maintained tight against the full pressure differential. 2. Positive action. The discharge valve in an Armstrong Blast Trap is either wide open or tight shut. Fast opening and fast closing prevent wire-drawing. 3. Handles dirt. There are no dead spots in an Armstrong Trap in which dirt can settle and interfere with the operation of the trap. Cross-section of No. 800, 81J, 818 and 818 traps for straight- through pipe connections. Cross-section of No. 801 trap for siondara angle pipe connections. Side Inlet Traps Trap Size No. 800 No. 611 No. 812 No. 813 No. 801 Pipe Connections................................ List Price (Regular)........................... List Price (Blast Trap)..................... Telegraph Code (Regular)............... Telegraph Code (Blast Trap)......... Dimension A........................................ B......................................... " C.......................................... D........................................ 44 E.......................................... Number of Bolts................................. Diameter of Bolts............................... Weight.................................................... Maximum Pressure, lbs.................... VS Vs' $7.00 $8.50 Aloe Aloette 3%' W 5' ` 6` `/s' 4Vz lbs. 125 VS or VS $10.00 $11.50 Brown Brownette 33/4' W 5' 6' VS 5Vl lbs. 250 '// or 3/4' $16.00 SI 8.00 Cherry Cherette w 8l*4' V/S "i' VS 133/2 lbs. 250 Continuous discharge capacity in lb of water per hour at pressure indicated. For more complete information see the Capacity Chart in Armstrong Steam Trap Book. 5 10 15 > 20 13 3so0 CL 70 _e, 100 -J 125 150 200 250 450 560 640 690 500 . 580 660 640 680 630 950 1060 880 1000 840 950 860 950 810 720 760 1600 1900 2100 1800 2050 1900 2200 1800 2000 1500 1200 1300 VS or 1*' $22.00 $24.00 Dawn Dawnette V UVS 73/4* k, 250 2900 3500 3900 3500 4000 4100 3800 3600 3900 3500 3200 3500 VS or 3/4' $7.00 $8.50 Arrow Arrowette 363/*4' VfS W 6 VS AVi lbs. 125 450 560 640 690 500 580 660 640 680 1076 No. 800 No. 801 Armstrong. Machine Works Heating Systems specialties MATERIALS USED IN ARMSTRONG TRAPS Part No. 1 &2 3 4 5 6 7 8 9 10 11 12 Name Material Cap and Body............................................................................... Seat................................................................................................... Guide Plate Pins........................................................................... Valve................................................................................................. Lever................................................................................................. bucket (drawn tn one piece for No. 8UU, BUI, 211 and 212) Retainer........................................... ............................................... Gasket.............................................................................................. Bolts and Nuts.............................................................................. Thermic Vent........... .................................................................. Test Plug......................................................................................... Cast Semi-Steel. 33,000 lb tensile strength Chrome Steel Stainless Steel Stainless Steel Stainless Steel Compressed Asbestos %a Steel *Va!ve and Seat are heat treated after machining. 4. The wearing parts in all Armstrong Traps are identical in design, material, and precision workmanship with parts used in Armstrong Forged Steel Traps for pres sures up to 1500 lb gage and total tempera tures of 850 F. RE6ULAR AIR VENTv AUXILIARY FOR BLAST TRAP JOBS Armstrong Steam Trap Book. This 36 page book gives complete information on all sizes and types of Armstrong Traps. It also contains 17 pages of data on the subject of trap selection, installation, and maintenance. A free copy will be mailed on request. ALL-,Armstrong traps are readily convertible into "Blast" type traps merely by using buckets equipped with the patented auxiliary thermic air vent. As shown in the above sketches, the mechanism for this vent consists of a stainless steel disc slotted to receive the end of a bi-metal strip. Different coefficients of expansion, in the bi-metal cause it to bend down when cold and up when hot. Normally, it is set to close at 212 deg, but it can be set to close at higher temperatures. Capacity, 50 to 100 times the air-venting capacity of a standard trap. Bottom Inlet Traps Trap Size Pipe Connections................................... List Price (Regular)............................. List Price (Blast Trap)........................ Telegraph Code (Regular).................. Telegraph Code (Blast Trap)............ Height................DimensionB........... Diameter........... 44 A Wall Thickness " Diameter of Bolts C Number of Bolts.................................... Weight......................................... Maximum Pressure. . No. 211 VS $ 9.25 $10.75 . Aspen Aspette Ws w w Vi" No. 212 W $17.00 Birch Birette 8" 5" VS VS 8 KH^ib No. 213 VS or vs $20.75 $22.75 Walnut Walette ms w % 6 . 19 lb 250 No. 214 1n $29.00 $31.50 Hemlock Hemlette 1w W 321b 250 Continuous discharge capacity in lb of water per hour at pressure indicated, for more complete information. see the Capacity Chart in the Arm- strong Steam Trap Book. 5 10 15 20 13 30 50 70 100 3 125 150 200 250 830 950 1060 880 1000 840 950 860 950 810 860 760 1600 1900 2100 1800 2050 1900 2200 1600 2000 1500 1600 1300 2900 3500 3900 3500 4000 4100 3800 3600 3900 3500 3200 3500 4800 5800 6500 6000 6600 6300 6000 6200 6700 5700 5300 5700 1077 No. 215 1 or P/4" $38.00 $40.50 Larch Larette 14 1 47 lb 250 7600 9000 10000 8500 9800 9000 9200 10400 10900 9500 9200 7000 No. 216 P/a or 2* $55.00 $60.00 Tamarack Tamrette 163/4 10*" Hi8 VS 12 80U> 250 14500 17300 19200 18500 18000 18200 18300 18000 20000 18500 17500 19000