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Pure-Flo®

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GENERAL ENGINEERING DATA<br />

PRESSURE/TEMPERATURE RECOMMENDA-<br />

The above chart does not pertain to steam or corrosive services. Please consult our Service and<br />

Engineering Catalog for particular service recommendations. For services exceeding these<br />

pressure/temperature recommendations, consult the factory.<br />

PTFE DIAPHRAGMS FOR VACUUM SERVICE<br />

Notes:<br />

1. Service conditions falling to the right of these lines will require bonnet<br />

evacuation.<br />

2. PTFE-Diaphragms, 6" (DN 150) size and larger, will not withstand full<br />

vacuum at any temperature unless bonnets are evacuated.<br />

3. With evacuated bonnets any size PTFE-Diaphragms can be used up<br />

to 350°F (176°C).<br />

75<br />

GENERAL ENGINEERING DATA

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