Document 6RKK7L743bEBV9nRYg8BrBpB1
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Heating System* 9td.n
ARMSTRONG MACHINE WORKS
851 Maple St., Three Rivers, Mich. GUARANTEED: SATISFACTION OR YOUR MONEY BACK Traps Available from Local Stocks of 45 Factory Representatives
135 Jobbers, or Through the Supplier of Your Choice, or Direct from Factory
Open Float and Thermostatic Traps for Low Pressure
Heating Service
Armstrong O.F. AT. traps answer the specific needs of low-pressure intermit tent service where large amounts of air accumulate when the steam is off-- especially good for unit heaters, pipe coils and standing radiation.
Design is open-float, single valve, with bi-metal controlled air vent. Conven tional float and thermostatic connec tions--X in. to 2 in.
Mechanisms are of the same design, materials and workmanship as those used in Armstrong forged steel invertedbucket traps for high-pressure, hightemperature service. Bodies and caps are close-grained cast semi-steel, de signed for pressures to 350 prig.
Further information in Bulletin No. 775.
FEATURES
1. Low First Cost--on the basis of actual capacity for discharging hot condensate. No. 860 (X in.) has a capac ity of 640 lb/hr at 15 psi, lists at $12. Other capacities to 6800 lb/hr.
2. Easy Installation--horizontal -straight-through pipe connections mini mize fittings and labor. Also, traps can be equipped with internal check valves.
3. Long Life and Low Maintenance --Armstrong 0. F. & T. traps are non-,
air-binding and self-scrubbing. Working parts are corrosion-proof. Open-float is Ron-collapsible. Inadvertent admission
of high pressure stream will not harm
trap. Traps hydraulically tested at 500
psig. 4. Automatic Air Elimination--
during warm-up, thermostatic vent is
wide open to discharge large amounts of
ARMSTRONG INVERTED-BUCKET STEAM TRAPS
Side Inlet, .
Bottom Inlet,
Side Inlet,
Integral Strainer
Side Outlet
Top Outlet
Bottom Outlet
For draining steam mains and all
types of institutional and industrial steam-heated equipment--including hot
less to buy and install than standard trap plus separate strainer. Following table lists types, connections, and max
water heaters, and kitchen, hospital and imum capacities of hot condensate:
laundry equipment. High capacity for
size due to time-tested two-phase lever
age system. Sizes for every capacity need. Cast semi-steel models may be used
Type
fMWfWlM fa). (ivfc)
for pressures to 250 psi. Forged steel
models available for higher pressures. Features: basically the same as those
outlined above for O. F. A T. traps ex cept for the extra large air-handling capacity--air is discharged through the
bucket vent. Choice of body styles and built-in
accessories minimise fittings and instal
Side Inlet-Side
Outlet Bottom Inlet-Top
Outlet
Side Inlet-Bottom Outlet
Integral Strainer
X to IK X to2 X or x X to IK
7500 19000
570 3500
lation labor. Each type available with
thermic vent for handling faster heat-up
and/or internal check valves. Integral strainer traps are available which cost
Other Armstrong traps available with capacities up to 300,000 lb/hr.
Complete details in Catalog K.
air rapidly. Regular vent handles normal air and/or CO* in system after heat-up, venting it at steam temperature.
5. Fast Condensate Removal--con densate is discharged at steam tempera ture--as fast as it enters trap. No cooling leg needed.
6- No Steam Loss--valve parts are always water sealed, and cannot be nicked by. dirt or scale. Excellent for vacuum service.
Y-TYPE STRAINERS Semi-steel: screwed, X in.-2 in.; flanged,
2 in.-fi in. Carbon steel: screwed or socket weld,
X in.-3 in.; flanged, 2V in.-6 in. Chrome moly: screwed or socket weld,
X in.-2 in. Bronze: screwed or silbr&s, X \n.-2 in. Type 316 stainless: screwed or socket - weld, X in.-2 in. -
Y-Type Strainer Air Relief Trap
AIR RELIEF TRAPS Ball-float traps for venting air from high points in hot-water systems. Cor rosion-proof stainless-steel mechanisms. Smallest size is No. 21 (shown above)-- X in. or X in. connections, 6J-in. diameter, capacity of 10 cfm at 30. psi, list price $16.00. No. 2lG, same capacity as 21 but fits between studs.
Heating System* Sph,ihm
357
MUELLER STEAM SPECIALTY CO., INC.
29 Meserole Avenue, Brooklyn 22, New York
/ 1 " 'I
1 MUELLER 1
1
No. 751 yv0, us
STRAINERS FOR ALL SERVICES
251 SELF CLEANING "Y" TYPE X in. through 3 in. Cast Iron, Cast Steel, Bronze and Aluminum. Pressures up to 600 lb steam.
751 FLANGED SELF CLEANING "Y" TYPE
Sizes 1-X in- through 16 in. Larger sizes available on application. Available in Cast Iron, Cast Steel, Stain less Steel and Bronze. Pressures up to 600 lb steam.
155 and 165 BASKET TYPE
Basket-Type Strainers available with screwed or flanged ends, in CasTSteel, Cast Iron, Stainless Steel and Bronze. Furnished with closed or open bottom baskets.
Baskets lined with mesh are available where very fine screening is required. Drain plug at bottom of strainer easily removed for blowdown of accumulated sediment.
145 BASKET TYPE
Sizes X in. through 3 in. Iron Body and Bronze Body screwed end removable Basket-Type Strainers.
Screens and Baskets made from a variety of per
forated metals and wire mesh available for all types of
strainers.
.'
No. 155
No. 165 X
Cast Carbon Steel and Stainless Steel Basket Strainers are available for gasoline and jet fueling applications ... In full accordance with U.S. Government Specifications.
Every Mueller Strainer is individually tested and fully guaranteed
PRESSURE DROP CHARTS ON MUELLER STRAINERS AND 1959 CATALOG ARE AVAILABLE ON REQUEST.