F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
122/29
F22B 37/18 (2006.01) F22B 37/48 (2006.01) F24H 9/00 (2006.01) F24H 9/20 (2006.01)
Patent
CA 1282654
BOILER HYDRAULIC COLUMN CHOKE AND REAMER WITH BURNER CONTROL PROTECTION AGAINST A LOW WATER CONDITION ABSTRACT An improved hydraulic column choke valve and reamer, adapted to hot water heating boilers and the like, permitting maintenance on low water fuel cut-off controls and similar columns without draining the boiler, characterized by a universal valve body and locking mechanism which interchangeably mounts a reaming assembly and/or choke assembly, the latter of which may be retained in the column after removal of the valve body. The water column choke is adapted to columns of variant horizontal cross-section without exchange of the valve body, per se. Supplemental to the basic choke valve is the adaptation of an electric low water cut-off control, useful as and when the water column may be isolated from the boiler.
604252
Finlayson & Singlehurst
Swallow David H.
LandOfFree
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