National boilers, radiators, and specialties: catalog no26 . Wood Wheel Valve Key Valve Vs inch, each $ V8 inch, each. $ Extra Keys, 10 cents net. Key and Wood Wheel air valves are of the best workmanshipand finish. The threads are tapped with care and precisionand are tapered, insuring perfectly tight joints. The Novus Automatic Air Valve isthe best competition valve on the mar-ket. The composition carbon is thebest made and is drilled through thecenter, permitting the passing of ametal pin through this opening. Thispin holds the carbon in position andprevents buckling. This valve wil
National boilers, radiators, and specialties: catalog no26 . Wood Wheel Valve Key Valve Vs inch, each $ V8 inch, each. $ Extra Keys, 10 cents net. Key and Wood Wheel air valves are of the best workmanshipand finish. The threads are tapped with care and precisionand are tapered, insuring perfectly tight joints. The Novus Automatic Air Valve isthe best competition valve on the mar-ket. The composition carbon is thebest made and is drilled through thecenter, permitting the passing of ametal pin through this opening. Thispin holds the carbon in position andprevents buckling. This valve willfree the radiator of all air and preventwater escaping. List Price $1-25. 64 NATIONAL HEATING SPECIALTI ES The Solus Perfect Automatic Air Valve
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectsteambo, bookyear1920
