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What are Capillaries?
Sep 17,2020
There are many reasons to think about using capillaries with diaphragm seals. Before considering them, it’s important to understand the role that a capillary plays. Capillaries are used for mounting pressure gauges, transmitters, and switches away from the tank or pipe. This may be done for several reasons. You might wish to mount your pressure instrument in an area with good visibility, like an instrument panel. In other cases, it may be necessary to reduce instrument pulsation. 

Capillaries are also used to separate instruments from very hot or cold temperatures. The level of temperature reduction they provide is condition-dependent and varies. Make sure you have the right capillary for your requirements by working with the knowledgeable team at MIEPL. Various product options are available, including degreasing for oxygen applications.

What to Know Before Using a Capillaries
Please note that capillaries will affect the response time of your assembly. Specifically, the length and diameter of the capillary causes such an effect, in conjunction with system fill fluid, temperature, pressure, and instrument-displaced volume.

In addition to mounting pressure instruments, capillaries may be used between measuring instruments and diaphragm seals. There are several types of capillaries available for use in various industries and applications. Capillaries come in a range of lengths and with different process connections, so you can find the perfect one for your setup. No matter what you plan to use your capillary for, it is essential to conduct thorough research before ordering.

Capillary Protection
Capillary armor plays an important protective role. It is strongly recommended to use capillary armor in all applications if possible. There are many types of armor available. SS interlocking is the most common, while polyethylene white tube armor is the second most commonly used. Other options include SS reinforced woven and PVC black coating. As with the capillary itself, the type of armor used must be based on application requirements.

Use of capillary protection will ensure your peace of mind, protecting your instruments from potential failure. For assistance choosing the right armor, speak with the professionals at MIEPL. Once you explain your desired application, we will provide you with data relevant to your selection of armor and other capillary options. Getting the initial order right will ensure the smooth operation of your pressure instruments.