What is a pump liquid end?

LMI Pump Liquid End Assemblies With every stroke a controlled amount of the process fluid, along with any trapped vapor, is recycled back to the chemical supply. The optional 4-Function Valve is mounted on the discharge port, which is located on the front of the liquid end.

Can reciprocating pump handle viscous liquid?

Reciprocating pump designs handle a full range of liquid characteristics, including low viscosity chemicals, high particle content slurries and high viscosity liquids. Conversely, reciprocating pumps have nearly constant flow for a given speed, regardless of pressure.

What are the main parts of reciprocating pump?

Parts of Reciprocating Pump:

• Water Sump.
• Strainer.
• Suction Pipe.
• Suction Valve.
• Cylinder.
• Piston and Piston rod.
• Crank and Connecting rod.
• Delivery valve.

What is the discharge of reciprocating pump?

All reciprocating pumps have a pulsating discharge. This is the result of the piston motion as it stops and reverses. At this moment, the flow from that piston theoretically drops to zero.

Which pump is used for high discharge?

Centrifugal pumps
All Answers (23) Please see the following image where there is comparison between positive displacement pumps (Reciprocating pumps are type of PDP) and Dynamic pumps (Centrifugal pumps). It is clear that PDP are used when we need high outlet pressure and dynamic pumps are used when we need high discharge.

What is the major drawback of reciprocating pump?

Disadvantages of Reciprocating Pump: 1) The pump is very costly (Capital cost is high). 2) Viscous liquids are difficult to pump using a reciprocating pump. 3) The maintenance cost of the pump is very high as there is a large number of parts.

Which is an example of reciprocating pump?

Types. Simple hand-operated reciprocating pump. The simplest example is the bicycle pump, which is used ubiquitously to inflate bicycle tires and various types of sporting balls. The name “bicycle pump” is not really the most correct term because it generates more compression than volume displacement.

Where is a reciprocating pump used?

Incorporating reciprocating pumps results in repeatable and precise mechanical operations. Industries that commonly use reciprocating pumps include: Oil and gas: Oil and gas industry applications include disposal, offshore oil, production, injection, feed, charge, steam generators, mainline, and field gathering.

What is the efficiency of water pumps?

The centrifugal pump converts mechanical energy into hydraulic energy (flow, velocity and pressure), and the AC motor converts electrical energy into mechanical energy. Many medium and larger centrifugal pumps offer efficiencies of 75 to 93 percent and even the smaller ones usually fall into the 50 to 70 percent range.

Which is the best description of a reciprocating pump?

Reciprocating pump is a positive displacement pump where certain volume of liquid is collected in enclosed volume and is discharged using pressure to the required application. Reciprocating pumps are more suitable for low volumes of flow at high pressures. 1.

How does the power end of a pump work?

The power end (Figure 1) converts a motor’s rotary motion into reciprocating motion by means of a crankshaft, connecting rods and crossheads. The liquid end (Figure 2) connects to the power end and contains the plungers, packing, fluid chambers and valves.

How many PSI does Nikkiso reciprocating pump have?

For performance and safety, each pump is tested throughout production and prior to delivery. Nikkiso ACD’s reciprocating pumps are primarily used for cryogenic applications requiring flows up to 340 gpm (1.300 1/min) from high pressures of 4,350 to 21,000 psi (300 bar to 1.450 bar) and range from 500 to 2,500 kw.

What kind of pumps are used for cryogenics?

Nikkiso ACD’s reciprocating pumps are primarily used for cryogenic applications requiring flows up to 340 gpm (1.300 1/min) from high pressures of 4,350 to 21,000 psi (300 bar to 1.450 bar) and range from 500 to 2,500 kw. Gases pumped include LNG, nitrogen, oxygen, ethylene, halon, hydrogen, carbon dioxide and nitrous oxide.