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| Product Name: |
Throttling Device Series
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| Supply Ability: |
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| Related proudcts |
throttling device, |
| Specifications |
DN3~DN3000 |
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I. Purposes and Characteristics1 Purpose:
The Differential-pressure flowmeter is made up of the throttling device, differential transmitter and flow accumulator. The throttling device is a primary element installed on the pipeline, mainly applied in measuring the flow of all kinds of gases (which is pure or containing dust), steams (which is saturated or superheated) and liquids (which is conductive or non-conductive, of strong corrosivity, sticky, smudged or containing particles, etc.), and can measure the volume flow or quality flow directly.
2. Characteristics
The Throttling device is the earliest adopted method of the flow measurement with the longest history, and is the most widely used method at present. Its main advantages are as follows:
For Standard Throttling Devices, there is no need to calibrate the real flow to ***ermine its measurement accuracy (and it is the only flow instrument at present).
The applications of measurable mediums of the throttling device are very large. They are almost applied in measuring the flow of all the gases, steams and liquids.
<>3)Its working pressure can reach 32 *** and can be also applied to the subatmospheric pressure.
Temperature range of mediums: -185oC ~ + 650oC (which is impossible for other flowmeters.
There are many kinds of structures of Non-Standard Throttling Devices, which can be almost applied in measuring the flow of all kinds of fluids.
The range of the flow can be changed on the spot by setting the ***n of the Differential-pressure transmitter.
Its operation and use are very simple and can be mastered easily. Besides, its daily maintenance is very little.
II. Working theory
The working theory of the flow measurement of the throttling device is based on the famous Bernoulli Hydrodynamic Theory. As shown in the below figure (1), if one throttling element is put in the pipeline, a Differential-pressure (Differential-pressure P) will be produced on both sides of the throttling element when there are liquid |
| Company: |
HK.SPYANL CO., LTD
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| Contact: |
Ms. Tina Zhao |
| Address: |
Heping Dictrict |
| Postcode: |
210048 |
| Tel: |
86-18118811360 |
| Fax: |
86-18118811360 |
| E-mail: |
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