Condensate trap on a condensing gas-fired furnace

Details Condensate trap on a condensing gas-fired furnace Condensate trap on a condensing gas-fired furnace

1988-03-30

1989-08-15

Jones, Larry

Fluid handling

Diverse fluid containing pressure systems

Fluid separating traps or vents

126 99R, 126110R, F16T 120

Patent

active

048565504

ABSTRACT:
The present invention pertains to a condensate trap for a condensing furnace comprising a housing having an inlet adapted to be connected to a condensing heat exchanger, an outlet for flue gas and an outlet for condensate. The housing has a chamber therein, a valve seat defining an opening from the chamber, a float valve in the chamber adapted to close the opening, and a drain orifice in the outlet for condensate forming a dam to prevent negative pressure from undesirably dislodging the float valve from the opening. The drain orifice is constructed and arranged to retain condensate at a level higher than that of the bottom of the valve seat.

REFERENCES:
patent: 1316171 (1919-09-01), Marion
patent: 4527584 (1985-07-01), Miller
patent: 4603680 (1986-08-01), Dempsey et al.
patent: 4627460 (1986-12-01), Eising
patent: 4685486 (1987-08-01), Yokoyama

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