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Fire resistant: In applications
where fire hazards or environmental pollution are a concern,
waterbased or aqueous fluids offer distinct advantages. The
fluids consist of water-glycols and water-in-oil fluids with
emulsifiers, stabilizers, and additives. Due to their lower
lubricity, piston pumps used with these fluids should be
limited to 20,670 kPa (3000 lb/sq in.) Furthermore, vane
pumps should not be used with water-based fluid unless they
are specifically designed to use such fluids.
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