This utility model discloses a water-saving building
water supply and drainage device, relating to the field of building
water supply and drainage technology. The device includes a valve housing, a valve core, and an inlet
pipe. The valve core is inserted into the inner side of the valve housing, and the inlet
pipe is also inserted into the inner side of the valve core. The valve core consists of a throttling valve and an opening / closing valve. The opening / closing valve is connected to the top of the throttling valve. The throttling valve controls the
outflow rate, while the opening / closing valve controls the opening and closing of the device. A ball core is inserted into the inner side of the throttling valve, and this ball core is connected to a connecting rod that passes through the throttling valve to the outer side. A knob is sleeved on the outer side of the connecting rod, and the knob is fixed to the connecting rod by connecting bolts. The valve housing includes a plug-in shell, a valve
handle, and a fixing ring. A positioning ring and an outlet
pipe are set on the outer side of the plug-in shell. The outlet pipe is equipped with an aerator and has a sealing ring on its inner side. A sleeve is connected to the inner side of the valve
handle, which cooperates with the plug-in rod at the top of the opening / closing valve to control opening and closing. A nut is fitted on the outer side of the inlet pipe. This device achieves independent control of flow regulation and opening / closing, resulting in good water-saving performance, convenient operation, reliable sealing, and a simple and easy-to-maintain structure.