Swagelok measurement devices

Following 5 rules will help make sure you're using gauges correctly:

1. Double gauge pressure over system pressure.
2. Liquid fill where vibration is present.
3. Always use a restrictor when pressure spikes are present.
4. Hang a gauge upside down when high pressures and flows are present
5. Never mount the gauge directly above a high temperature source

Even for some of the simple applications -- you want a precise measurement. The most basic measurement device is the variable area flowmeter. It measures the flow rate of liquids and gases by means of a tapered tube and float. The float is pushed up by increasing fluid flow and pulled down by gravity as fluid flow decreases. No external power is required, though Swagelok does offer some electronic options.

Once you have flowmeters in place, it's a good idea to follow up with a calibration program, checking every so often that you are still getting accurate readings. Other than that, very little maintenance is required.

Like you, we can't tell thread size and thread pitch on a component just by looking at it. But we can provide calipers, combs, and guides that help with identifying threads.

When you look at a thread, you'll see peaks (called crests) and valleys (called roots). The part in between the crest and the root is called the flank. The first thing you want to find out is whether the crests are all the same diameter. That would mean you have straight threads. So we get out our calipers and measure the first, fourth and last crests. If the measurements are the same, you have straight threads. If you get three different measurements, you have tapered threads.

Do not mix or interchange product parts with those of other manufacturers. This will void the Swagelok warranty.

Swagelok's Field Station Module is a pre-engineered, fully built subsystem that moves samples to the analyzer faster. When this pre-engineered subassembly is placed directly off the supply tap, it lowers the pressure of a gas as soon as possible.

In addition to giving you a fast response time, the field station module reduces condensation in the sample. Higher pressure will squeeze out any water in a gas, causing condensation issues. With a lower pressure, you don't get that change in phase. Lower pressure also provides a safer environment for your personnel.

Here are five common mistakes and the problems they can cause. Do any of these sound familiar?

1. Your gas sampling system has too much volume upstream of the first regulator.
2. Your liquid sampling pressure is too low.
3. You’re sampling from a stagnant line.
4. Your vaporizer is too hot.
5. Your sample flow is too slow. 

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