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Description
This range of fully welded seals are manufactured from 316 SST using two similar halves which are welded together with a thin stainless diaphragm sandwiched in between.
So a very simple design but very effective, so no chance of loss of the filling fluid.
Here at CPS we stock a large range of these seals in many configurations.
Please click on the options available tab above for pricing and different thread combinations. To support this product line we also offer a fitting and filling service as all seals must be filled under vacuum using a fill fluid such as silicon or cooking oil. These seals work particularly well with the P2500 and P4000 series gauge. Please check the data sheet for pressure ranges for each model.
Product code: MIB
Additional information
| OPTIONS AVAILABLE | S300: 1/2 F x 1/2 M NPT, S310: 1/4 F x 1/4 F NPT |
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Technical Information
Technical Information
The filling of diaphragm seals is not a difficult process but it can’t be rushed; basically the air is removed (by applying vacuum to the external of the gauge) from the inside of the bourdon tube of the gauge and replaced with a fill fluid eg Silicon Oil or cooking oil (in the case of CPS). The more air that is removed the better the fill will be. Because air is compressable any residual air will affect the accuracy of the gauge and reduce the life of the seal. Have too much air left behind and the thin stainless diaphragm in the seal will try and compensate for it and start to flex too far backwards and forwards as the pressure changes. The diaphragm will work harder and crack and fail and you will loose the fill fluid into your process. So it is important that your fill fluid is compatible with your process. So be aware of suppliers offering the filling of seals in a couple of hours. We evacuate our system overnight to ensure there is no residual air.
So if you have a special application that requires a special fill just contact us we are sure to help.
FOR FULL SPECIFICATIONS REFER TO MANUFACTURERS DATA SHEET.
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