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Manufacture of gear pump, gear motor, orbital motor and valves.
The main difference between high-pressure arc gear pump and atmospheric arc gear pump is: First, high-pressure arc gear pump made of hard alloy material after high frequency processing, gear wear than ordinary arc gear hardness Good sex. The conventional circular gear pump gear all 40Cr nitriding, and even limited small manufacturers use 45 # steel quenching and tempering for arc gear pump gear. Second, the high pressure arc gear pump body is made of forged steel castings. Gear pump pump body higher density, higher pressure, higher temperature, better wear resistance. Ordinary arc gear pump body is made of HT200 ordinary cast iron. Third, high-pressure circular arc gear pump lip seal imported lip seals, sealing performance higher. Ordinary arc gear pumps are generally used graphite and skeleton oil seal as a seal. Fourth, high pressure arc gear pump coupling with flexible pin coupling, higher concentricity, longer service life. Ordinary arc gear pump couplings are generally used three-jaw flexible coupling.
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