Silicon brass lead-free water meter

Abstract

The invention discloses a silicon brass lead-free water meter. The water meter comprises a water inlet pipe, a water stop valve, a water stop valve switch, a pipe connecting nut, an upper ring chamber, a water meter movement, a lower ring chamber, a filter screen, a water meter lower sealing cover, a water meter water outlet connector, a pressing handle, a rotating shaft, a meter cover, a meter dial plate, a main reading meter and an auxiliary pointer value indicating dial. The water inlet pipe is communicated with the water meter through the pipe connecting nut. The interior of a shell of thewater meter is divided into the upper ring chamber and the lower ring chamber. The water inlet pipe is communicated with the upper ring chamber through the pipe connecting nut. A water stop valve isarranged on the water inlet pipe, the water stop valve switch is arranged outside the water stop valve, the water meter movement is arranged in the upper ring chamber, the filter screen is arranged inthe lower ring chamber, and a water flow pushing rotating impeller is arranged in the filter screen and is in linkage with the water meter movement through a transmission system. The water meter is made of silicon brass, compared with existing brass, the silicon brass is greatly reduced in lead content, and the silicon brass lead-free water meter meets requirements for environmental protection and health.

Description

technical field [0001] The invention relates to a water meter, in particular to a silicon brass lead-free water meter. Background technique [0002] A water meter is an instrument for measuring water flow. Most of them measure the cumulative flow of water. They are generally divided into two types: volumetric water meters and speed water meters. They originated in the United Kingdom. The development of water meters has a history of nearly two hundred years. , you should first estimate the size and flow range of the flow normally used, and then choose the water meter of the specification with the usual flow closest to the value as the first choice. [0003] Water meters with excessive lead content will increase the lead content in drinking water to exceed the standard, first of all, it is caused by the excessive lead content in the copper material of the water meter. According to reports, the valve bodies and shells of some water meters on the market are made of inferior bra...

AI Technical Summary

Problems solved by technology

In order to cope with market competition, some manufacturers of water watch cases blindly reduce costs and use lead instead of tin to smelt brass, resulting in excessive lead content in the material

[0004] It is well known that metallic lead is a harmful substance to the human body. If a large amount of lead precipitation in ordinary copper water meters exceeds the standard, it will cause secondary pollution of water sources and will pose a great threat to human health.

According to medical analysis, excessive lead in the human body will cause low immunity of the human body. After lead enters the body, it will cause harm to multiple systems such as nerves, hematopoiesis, digestion, kidneys, cardiovascular and endocrine. In adults, more likely to form health risks

Images