Diaphragm seals protect expensive measuring instruments from direct contact with potentially dangerous process media. Adding a diaphragm seal to a pressure gauge or sensor offers protection from corrosive media and mitigates the impact of both high- and …
Pressure
Getting a Grip on Dual-Purpose Capillary Lines
| Raimund WeissnerAn instrument capillary line can serve a dual purpose. First, capillary lines, or tubes, are a convenient method for separating a pressure instrument such as a gauge or transmitter from the process connection so the reading can be taken at a more accessible location. …
An Overview of Temperature Measurement with Bimetal Thermometers
| Hardy OrzikowskiSometimes a technology is so useful it becomes the standard for several decades. Such is the case with bimetallic spring temperature measurement devices, which have been used to indicate temperature for more than a century. With bimetal temperature indicating …
How to Choose the Right Fill Fluid for Your Diaphragm Seal
| Raimund WeissnerA diaphragm seal is designed to protect expensive instruments. It operates by transferring the pressure effect of a process media through a membrane-like seal to a fill fluid that then transfers the resulting pressure wave to a pressure gauge or sensor at the head of …
Extreme Process Temperatures Need Diaphragm Seals with Cooling Elements
| Raimund WeissnerExtreme process temperatures need diaphragm seals with cooling elements, heat will degrade almost any mechanical or electronic device over time. Similarly, extreme process temperatures have been shown to dramatically reduce the functional lifetimes of sensitive …