Gear pump structure
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Please help me, what is the pipe-like thing on the outer end of the gear pump used for?
It's something like a safety valve to prevent pressure from being held in. Look at the drawings given by the manufacturer.
Return safety valve, a safety device that regulates outlet pressure to prevent accidents, is generally found in positive displacement pumps.
Safety valves and positive displacement pumps are included to prevent pressure damage to the equipment.
Safety relief device, because the gear pump is a positive displacement pump and relies on volume changes and system back pressure to generate pressure. Therefore, overpressure will occur, so the pump body needs a safety protection system.
This is a device for adjusting the backflow pressure of the gear pump. Open the protective cap and use the adjusting screw to adjust the pump output pressure. This facility not only functions as a pressure reducing valve for adjusting the output pressure, but also acts as a safety valve to prevent overpressure. For reference.
Safety valves and gear pumps are positive displacement pumps that require safety protection systems and also have the function of regulating outlet pressure.
relief valve: A type of safety valve. When the rear end valve is closed, the fluid flows from the back of the pump to the front of the pump, reducing the pressure at the rear end of the pump and preventing damage to the pump or other accessories.
Please refer to the picture I made 15 years ago.
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