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Bomba de diafragma

Este artigo não cita fontes confiáveis. Ajude a inserir referências. Conteúdo não verificável pode ser removido.—Encontre fontes: ABW  • CAPES  • Google (N • L • A) (Agosto de 2014)
Princípio de funcionamento de uma bomba de diafragma.
Bomba de diafragma aspirando.
Bomba de diafragma impulsionando.

A bomba de diafragma ou bomba de membrana é um tipo de bomba de deslocamento positivo, geralmente alternativo, na que o aumento de pressão se realiza pelo empurrar de uma parede elástica — membrana ou diafragma — que variam o volume da câmara, aumentando-lhe e diminuindo-lhe alternativamente. Umas válvulas de retenção, normalmente de bolas de elastômero, controlam que o movimento do fluido se realize da zona de menor pressão para a de maior pressão.

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Bomba de diafragma
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