Shut-off butterfly valves offer high saf
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Article
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1997
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Elsevier Science
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English
β 107 KB
## NEWS type N1400, which is often used in generating stations. Highlights in this range of gas sampling pumps are the special versions with heated pump heads --in this way condensation of the gas sample can be avoided. For aggressive gases there are ceramic and PTFE pumps in the range, and for p