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1-in piston pump uses O-ring
2-in piston pump use metalic piston cylinder
3-piston pump use for expensive service
4-low pressure then plunger pump
1-in plunger pump use gland packing
2-plunger pump use for medium service
3-in plunger pump use in casing,cam and gijan pin
4-high pressure use 1000psi
Wiki User
∙ 11y ago
Wiki User
∙ 13y agoThe most important difference between hem is that, the piston is working to create force or energy, means the energy is important for carrying out some activity as like as pistons in cars,
but plunger role is exciting some process for carrying out any activity for example when you push some buttons in car (heater button) first you push it and after exciting the sensor the activity would be carried out.
Wiki User
∙ 14y agoPlungers and pistons for both pumps are moving inside cylinders.
However, plunger pumps can handle higher pressures than piston pumps
Plunger pumps more than 1000 psi.
Wiki User
∙ 14y agoit is one type of pump
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