Title:
FEED WATER SUPPLY SYSTEM OF BUILDING
Document Type and Number:
Japanese Patent JPH05156673
Kind Code:
A
Abstract:
PURPOSE: To keep water fed smoothly inside a building by automatically supplying water into a pump and a water suction pipe at the detection of the idling state of the pump.
CONSTITUTION: A duct 11, 12 is provided which bypasses a check valve mounted in a discharge pipe 13, 14 and a solenoid valve 9, 10 is mounted in the duct. The solenoid valve 9, 10 is controlled by a pressure sensor 15, 16 and water is automatically supplied into a pump 7, 8 and a water suction pipe 5, 6.
Inventors:
OKABE KAZUO
Application Number:
JP34987191A
Publication Date:
June 22, 1993
Filing Date:
December 10, 1991
Export Citation:
Assignee:
HITACHI BUILDING SYST ENG
International Classes:
E03B11/16; F04B49/06; F04D15/00; (IPC1-7): E03B11/16; F04B49/06; F04D15/00
Attorney, Agent or Firm:
Kenjiro Take (2 outside)