How to electrically trace the heat of the high temperature silicone oil double flange

I don't know the performance of the "high-temperature silicone oil" you talked about, just from the double flange use of electric heat tracing, first of all, you have to consider the temperature of the medium in the pipeline itself, whether the selected electric heat tracing can reach the working temperature you require, and whether the material of the electric heat tracing can withstand the high temperature of the medium;

There are generally two ways to install electric heat tracing with double flanges, one is to leave enough margin at the flange, there is this part of the electric heat tracing winding double flanges, and the other is to wind the pipe along the first end flange, and then come out from the second end flange, and then return to the pipeline for the installation of heat tracing. It is important to note here that you will need to see if the electric heat trace you choose can be overlapped.

The above information is for reference only, if you don't understand, you can call us.

DC200 is, DC704 is.

The density of silicone oil is temperature dependent, silicone oil is -10-250, -30-180, and high-temperature silicone oil is 10-300.

Usually, slightly smaller than water.

To find a good silicone oil, you can refer to:

The density of silicone oil in a Rosemount double flange transmitter varies depending on the temperature of the medium being measured, and is usually slightly smaller than that of water.

Passing by to take a look at the Samsung i9100 parallel import**.

The main body of the transmitter oil-filled equipment is a vacuum pump. The rest of the parts are shown in the figure below, and you can do it yourself.

Low viscosity silicone oil can be used. High viscosity is not good.

To send to the manufacturer for maintenance, silicone oil leakage will lead to inaccurate pressure measurement, affecting the life of the transmitter, you can contact me for details.

The calculated amount of migration may not be accurate unless all parameters are accurate.

At zero level, the differential pressure on the transmitter is the amount of migration.

The measuring range is calculated based on the distance of the pressure take-out.

Migration h1· 1·g h2· 2·g formula: h1 lower impulse installation height transmitter installation height, (m) h2 upper impulse installation height transmitter installation height, (m) 1 positive impulse pipe liquid density (kg m).

2 Negative impulse tube liquid density (kg m).

g Acceleration due to gravity (g).

The positive or negative of the calculated result corresponds to the positive or negative of the migration.

When the liquid density of the positive and negative impulse tubes is 1 2, there is:

Migration (h1 h2)· g

For the case that the installation height of the transmitter is equal to the height of the lower impulse port, the h1· 1·g term is 0;

For the case that the negative pressure pipe is a dry pipe (empty pipe), the h2· 2·g term is 0;

In the case of double flanges, the amount of migration due to the height of the transmitter installation cancels each other out, and the density of 1 2 silicone oil , so:

Migration h· ·g ;

Where: h Upper impulse installation height Lower impulse installation height.

Format: Filler Name Temperature Limit Value Specific Gravity rosemount:

There are four types of ordinary filler liquid.

Syltherm XLT -75 150DC 704 0 260DC 200 -45 205 Inert Oil -45 175 Also known as halogenated hydrocarbons, or fluorine oils.

There are three types of hygienic filler fluids.

Glycerol with water -15 95

Neobee M-20 -15 205 Propylene glycol plus water -15 95