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both, if it pumps liquid then it's hydraulic, if it pumps gas it is pneumatic

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Q: Is a piston pump hydraulic or pneumatic?
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What does hydraulic and pneumatic systems have incommon?

both pneumatic & hydraulic systems are applications of fluid powers


Is a backhoe loader hydraulic or pneumatic?

its hydraulic.


What is the ratio of variable displacement axial piston hydraulic pump and variable displacement bent axis hydraulic motor?

These have to do with the hydraulic density. In automobile, the density increases therefore making the hydraulic ratio to displace more than any hydraulic ratio in a displacement.


What is the opposite of hydraulic?

There is no opposite. Hydraulic refers to liquid; an alternative would be "pneumatic,' which refers to gas.


Functions of relief valves in fluid power control systems?

Fluid power comes in two forms: hydraulic and pneumatic. The pump in an hydraulic system is a flow source, delivering a set amount of fluid every revolution. Pressure is an effect due to restriction on flow in the circuit. If the oil delivered by the pump is used to operate a cylinder, the pressure that develops is due to load on the piston. If the pressure required to move the load on the cylinder is greater than the setting of the relief valve, the piston will not move and all the oil will pass through the relief valve. Also, when the piston has moved to the end of the stroke, it cannot move any further, however the oil delivered by the pump goes over the relief valve. If there wasn't a relief valve, the pressure will build up until the oil from the pump can flow somewhere: by bursting a hose or breaking the pump or cylinder.

Related questions

Is a bike pump hydraulic or pneumatic?

Pneumatic. Pneu = Air. Hydra = liquid


How can you generates mechanical waves?

You can use a hydraulic pump pushing a large piston.


How can generate mechanical wave?

You can use a hydraulic pump pushing a large piston.


What does hydraulic and pneumatic systems have incommon?

both pneumatic & hydraulic systems are applications of fluid powers


What is single acting hydraulic cylinder?

Single-acting devices consist of a large plunger, or piston, into which oil (or air in a pneumatic cylinder) is pumped.


Is a backhoe loader hydraulic or pneumatic?

its hydraulic.


Are Dam hydraulic or pneumatic?

It depends on the dam. Some dams are hydraulic and some are pneumatic. Short answer: Both


What is difference between axial piston pumps and vane pumps?

An axial piston pump is a positive displacement pump that has a number of pistons in a circular array within a cylinder block. It can be used as a stand-alone pump, a hydraulic motor or an automotive air conditioning compressor.A radial piston pump is a form of hydraulic pump. The working pistons extend in a radial direction symmetrically around the drive shaft, in contrast to the axial piston pump.


Are all cranes hydraulic?

It may be hydraulic or pneumatic system


Where is the piston pump located on a truck?

The hydraulic piston pump is a part, which is common in trucks. It is located below the gearbox, near the chassis of the truck. It is an essential part, therefore if it is broken, the truck will not move.


What is the working principle of a hydraulic crane?

it is due to to the pressure and suction of water


How does a pneumatic differ from hydraulic system?

Transmission fluid is performed by the hydraulic system. Pneumatic power transmission system is done by the gas.