Which manufacturer’s pressure transmitter flanges are available in sizes below DN50?
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May I ask, who knows which manufacturers can produce pressure transmitter flanges with a size of DN50 or smaller? For example, DN20 or DN25； Please tell me. Thank you
This post was last edited by qugd on 2011-1-20 at 17:36. Rosemount and Yokogawa both offer transmitters with such small flanges, but you may need to place a special order; I cannot guarantee that these are their standard products. Additionally, the pressure guiding effect of small flanges is less reliable than that of large flanges; although they are easier to install, this leads to a problem of poor responsiveness.
Why must it be flanged type? Can’t it be threaded or use a pressure guide tube? It must be a flanged type; can’t we use an eccentric reducer instead? Why choose non-standard products? Not only are they expensive, but there are also no spare parts available.
This post was last edited by xshying on 2011-1-20 at 16:32. Rosemount offers 1", 1-1/2", and 1-1/4" mounting flanges; I just checked the production line
Try to use standard personal opinions
Is it meaningful to use a transmitter with flanges for something that is so small?
The flange of a pressure transmitter is used primarily to separate the transmitter from the medium. Some media are corrosive, viscous, or contain particles that can cause blockages in the transmitter; therefore, a flange is necessary； In other words, it is necessary to use it in some cases; other connection methods will not work. There is a diaphragm on the flange, and the capillaries between the flange and the diaphragm are filled with silicone oil, which is used to transmit pressure. At present, our company supplies the flange diaphragms for more than half of the transmitter manufacturers both in China and abroad. We offer flanges with diameters ranging from 1\" to 5\", and custom designs are also available; flanges made from various materials can be produced as well. The general difference between small flanges and **flanges is that small flanges are used to measure high pressures, while **flanges are typically used for measuring lower pressures; of course, this is not absolute. The flanges such as DN25 and DN50 mentioned by the original poster are very common types of flanges, and we can produce flanges as small as DN15 as well
The 3051 pressure transmitter works fine. The usual diameter is around 25; I haven’t seen any smaller ones yet
Rosemount has the 3051 pressure transmitter + 1199 remote diaphragm assembly! For details, see the 1199 remote diaphragm component selection guide!