ADJUSTABLE VACCUM BREAKER FILL VALVE

A fill valve for controlling liquid level in a toilet water tank or other tank includes a valve head assembly positioned at a selected level in the tank by a telescoping riser assembly with liquid inlet and outlet conduits extending toward the tank bottom. An adjusting nut on a stationary riser enga...

Full description

Saved in:
Bibliographic Details
Main Author JOHNSON DWIGHT N
Format Patent
LanguageEnglish
Korean
Published 12.10.1991
Edition5
Subjects
ACTUATING-FLOATS
BLASTING
COCKS
DEVICES FOR VENTING OR AERATING
ENGINEERING ELEMENTS AND UNITS
FIXED CONSTRUCTIONS
FLUSHING VALVES THEREFOR
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
SEWERAGE
TAPS
THERMAL INSULATION IN GENERAL
VALVES
WATER SUPPLY
WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES
WEAPONS
Online AccessGet full text

Cover

More Information
Summary:A fill valve for controlling liquid level in a toilet water tank or other tank includes a valve head assembly positioned at a selected level in the tank by a telescoping riser assembly with liquid inlet and outlet conduits extending toward the tank bottom. An adjusting nut on a stationary riser engages thread structures on inlet and outlet conduits for raising or lowering the valve head assembly and adjusting the liquid level. A main valve in the head assembly is controlled by a non-horizontal diaphragm separating a vent chamber and a control chamber. The control chamber is pressurized as liquid rises to the selected level by a standpipe extending downwardly in the tank. The valve closing and opening levels are offset by partly filling the vent chamber with liquid when the main valve is open to hydraulically load the diaphragm. A vacuum breaker valve obstructs backflow through the valve, vents the flow path when the valve is closed, and regulates flow into the vent chamber when the valve is open.
Bibliography:Application Number: KR19840005902