ASM FICO 4552144 Output Card

ASM FICO 4552144 Output Card

Product Details

Swagelok compression fittings are standard. Polished 300-series stainless steel tubing should

be used to insure a leak-tight system. Insert tubing into the fitting all the way to the shoulder.

Check that ferrules are oriented as required. Tighten nut finger-tight, then while holding the

fitting body steady with a backup- wrench, tighten the nut 1-1/4 turns. For more detail see

Swagelok catalog C-1072. For other types of fittings available on special order, use

appropriate standard practice or consult manufacturer.

The following conditions should be considered to optimise system efficiency :

1. Operate the LVC at minimum back pressure. The lower the vaporizer pressure the higher the concentration.

2. Size bubbler for system.

3. Minimize plumbing pressure drops and dead volume by using correct tubing size. Use short plumbing

runs where possible.

4. Prevent vapor condensation in system by proper plumbing temperatures (i.e. plumbing temperatures

equal or greater than bubbler).

5. Most source materials when combined with air (which contains moisture) will form acid and a residue.

Therefore, proper purging procedures must be followed to avoid system contamination during installation

or removal.

6. Use check valve on outlet side of LVC to prevent liquid backing into line. Use a low cracking pressure

type check valve (1/3-2 psi).

7. Since vaporizing will tend to decrease bubbler temperature, care should be taken to minimize this effect

since concentration will decrease.

8. Use HI-Purity materials for minimum contamination.

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