A reciprocating pump design which produces a pressure differential across the pump on both the in and out stroke of each drive rod. Dual action pumps use two separate pumping chambers per drive rod. On the forward stroke, it pushes fluid out of the first chamber, and draws fluid into the other.

What are double-acting pumps?

A reciprocating pump design which produces a pressure differential across the pump on both the in and out stroke of each drive rod. Dual action pumps use two separate pumping chambers per drive rod. On the forward stroke, it pushes fluid out of the first chamber, and draws fluid into the other.

What is the difference between single acting and double-acting reciprocating pump?

Single-acting pumps discharge on either the forward or return stroke of the piston or plunger; every cycle of the pump displaces only one volume of liquid. In double-acting pumps, liquid is discharged on both the forward and return stroke of the piston.

Why it is called reciprocating pump?

Reciprocating Pump: A positive displacement pump which utilizes a plunger or piston to change a cavity’s volume, and produce a pressure differential. A plunger pump operates using the reciprocating motion of plungers or pistons. Depending on the design of the pump, the use of a single or multiple plungers may be used.

What is a single action pump?

Single Action (Pump) Single action pumps only use a single pump chamber per drive rod. They are only capable of producing pressure while the plunger or piston is moving into the pump chamber. Single action pumps are common in all sizes of reciprocating plunger and piston pumps.

What is the difference between single-acting and double-acting hydraulic pump?

A single-acting hydraulic cylinder includes just one port. This is where the hydraulic fluid enters and forces the plunger out in one direction. A double-acting cylinder includes two ports. One for the hydraulic fluid to enter and extend the plunger, and the other for retracting the cylinder.

What is difference between centrifugal pump and reciprocating pump?

The basic and main difference between centrifugal pump and reciprocating pump is that centrifugal pump use kinetic energy of impeller so it continuously supply fluid but in reciprocating pump piston sucks the fluid and then pushes it out which does not gives continuous supply.

What is the difference between single-acting and double acting hydraulic pump?

What are the main types of pumps?

There are three basic types of pumps: positive-displacement, centrifugal and axial-flow pumps.

What is single-acting hydraulic pump?

A single-acting cylinder is one in which the hydraulic fluid performs on just one side of the piston only. Since hydraulic oil does not compress, when applying force via a hand, electric or gas powered pump, the piston rod of the cylinder will extend.

What pump is the most efficient?

Positive displacement pumps are able to handle variations in pressure, flow and viscosity and remain efficient, unlike centrifugal pumps which do not operate well off the centre of their curve.

What is the difference between rotary and centrifugal pump?

Centrifugal pumps differ from rotary pumps in that they rely on kinetic energy rather than mechanical means to move liquid. Liquid enters the pump at the center of a rotating impeller and gains energy as it moves to the outer diameter of the impeller.

Why are there two pumps in HPLC?

In high-pressure mixing systems, two (and occasionally three) separate high-pressure pump units are used to mix solvents at high pressures downstream of the pump units (Figure 2a). A coordinated flow rate control of each pump is used to generate different isocratic blending or gradient profiles.

How many types of pumps are used in HPLC?

There are two common types of HPLC pumps: reciprocating pumps and syringe pumps. Reciprocating pumps are by far the most common pump used and can have single piston or dual pistons.

What are the two main types of water pumps?

There are two basic types of water pumps: centrifugal and positive displacement. Both types are designed to move water from one place to another continuously. A centrifugal water pump uses a rotating impeller to move water into the pump and pressurize the discharge flow.