Đồng Hồ Nước Zenner Wpv

Compound Woltman meter

- Compound meters were conceived for measuring extremely fl uctuating water amounts. For example, in the case of a fi re, a very high fl ow rate must be measured at a tap connection where under normal circumstances a domestic meter would be suffi cient. In this operation case, the spring loaded valve opens and the main meter also measures the volume fl owing through. Typical locations for these are schools, homes, offi ce buildings, or supply lines of smaller residential areas, where the fl ow rate must be exactly measured during the night.

- Our Compound meters are characterized by a high measuring accuracy in the commutation range and the low pressure loss during maximum load.

- They are simple in design, stable during use and have a relatively low weight. The counter of the main meter is designed as a dry dial meter. The secondary meter, which is usually arranged to the right, is typically a wet dial meter. A variation with the secondary meter arranged to the left, or with other secondary meter types, is available upon request.

- Reed sensor, optical and inductive-NAMUR sensors in the counter can always be retrofi tted without damaging the calibration seal. The secondary meter is supplied serially retrofi ttable and can be easily retrofi tted with a

Reed sensor.

- Performance characteristics in overview

- Extremely wide measuring range

- For cold water up to 30º C

- Evacuated counter protected from condensation

- Low starting fl ow and high measuring accuracy

- Flanges according to DIN 2501, PN 10

- Secondary meters arranged to the right, upon request to the left

- Main meter of WPH type

- For horizontal installation position

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