4. Fluid handling
  5. Back flow prevention by vacuum breaking
  6. Air vent in liquid flow line

Dema Engineering Co.

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Divertor valve

Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Patent

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Fluid pump assembly

Pumps – Motor driven – Fluid motor
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Proportioner

Fluid handling – Back flow prevention by vacuum breaking – Air vent in liquid flow line
Patent

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Proportioner

Fluid handling – Back flow prevention by vacuum breaking – Air vent in liquid flow line
Patent

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Vacuum actuated pump

Dispensing – Plural sources – compartment – containers and/or spaced jacket – Measured discharge from one and indeterminate flow from another
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