Jun 18 2014

Rotary Piston Volumetric Type Water Meter characteristics, water structure, technical parameters and the composition of the material

Volumetric meter is also called the piston type water meter, is a constant flow type water meter. The national standard in the volumetric meter is defined as “installed in the closed pipe, by some to be a water meter chamber volume successive full known and discharge fluid and with fluid driven mechanism.

Rotary Piston Volumetric Type Water Meter

Volumetric meter with rotary piston type and disc type two series, when the water flow through the meter, the drive piston flow (disc) rotation (swing), and the piston cylinder (disk chamber) volume is constant, so, by counting mechanism measured piston rotation (disc swing) times, can get through the water meter water.

Rotary Piston Volumetric Type Water Meter is the main rotary piston type water meter, water meter disc type not used in domestic, abroad also only a few countries American etc.. Rotary piston type water meter is generally small caliber specification, is characterized by measuring high level (up to C grade and D grade), small flow measurement capability, high sensitivity. At present is mainly used for the measurement of pipeline pure water, water purification water to produce drinking water meter water Limited by Share Ltd Ningbo and Ningbo Donghai instrument channel limited company as the representative, in the water meter diameter is 8, 15 and 20ram. Volumetric meter repair debugging complex, high requirement on quality, used in China has not yet been widely.

Under the action of water pressure, water from the lower water inlet into the measurement chamber, center 3 driven rotary piston 7 surround the measurement chamber shaft to rotate, and the water from the piston blank and piston and the measuring chamber wall surface formed by the air flows to the upper outlet, at the same time the piston rotates, connected by a rotating shaft 4 and shifting fork 5 and counting mechanism, so as long as the note of piston rotation times, can flow through the water volume.

Volumetric meter generally refers to the ordinary rotary piston type water meter, has the advantages of high accuracy and sensitivity. At present, it is not yet in China such as velocity meter (impeller, turbine and so on) that is generally used, but is widely used in Europe and the United States and other developed countries, as the share of 50% in France, 77% in Britain, 79% in Sweden, American is 99.8%; while in China and the former Soviet Union is almost zero.


1, the measurement principle of  Volumetric Piston Type Nylon Plastic Water Meter(Dry Register).

2, high sensitivity, can be in 1 liters / low traffic hours were measured.

3, horizontal installation reach D standard, non horizontal installation of not less than C class standards.

4, the counter by vacuum sealing, can keep clear reading.

5, moving parts are made of high quality materials, stable and reliable performance, long service life.

6, the built-in check back plate, which can prevent the countdown.

7, the case is made of stainless steel, beautiful and durable.