Mechanical Articles

The purpose of an air compressor is to provide a continuous supply of pressurized air. An air compressor is a machine to compress the air and to raise its pressure. The air compressor sucks air from the atmosphere, compresses it and then delivers the same under high pressure to a storage vessel. From the storage vessel, it may be conveyed …

Today we will discuss about typical Mechanical Valve functions and the basic parts of a Valve. Valves are the most common single piece of equipment found in industrial facilities. Although there are many types, shapes, and sizes of valves, they all have the same basic parts. This chapter will review the common parts and functions of a valve. What is …

Positive displacement pumps operate on a different principle than centrifugal pumps. Positive displacement pumps physically entrap a quantity of liquid at the suction of the pump and push that quantity out the discharge of the pump. A positive displacement pump is one in which a definite volume of liquid is delivered for each cycle of pump operation. This volume is …

Improper operation of centrifugal pumps can result in damage to the pump and loss of function of the system that the pump is installed in. It is helpful to know what conditions can lead to pump damage to allow better understanding of pump operating procedures and how the procedures aid the operator in avoiding pump damage. Many centrifugal pumps are …

Today we will discuss about (BFWP) boiler feed water pump working principle and operation of a boiler feed water pump. The boiler feed pump function is to supply pressurized feed water to the boilers to maintain the water inventory at various operating loads. Boiler feed water pumps are commonly centrifugal pumps. To ensure a high enough head and pressure, Boiler feed …

Centrifugal pump Components vary in design and construction from simple pumps with relatively few parts to extremely complicated pumps with hundreds of individual parts. Some of the most common components found in centrifugal pumps are wearing rings, stuffing boxes, packing, and lantern rings. Wearing Rings Centrifugal pumps contain rotating impellers within stationary pump casings. To allow the impeller to rotate …

Classification of Centrifugal Pump Centrifugal pumps are classified in several ways. Pumps may be classified: • in terms of energy conversions (volute type and diffuser vane ring type); • in terms of fluid flow through the pump (radial, mixed flow and axial flow); • as either single stage or multistage i.e. in terms of number of stages; • according to …

Introduction to Centrifugal pumps Centrifugal pumps are the most common type of pumps found in industrial applications. Centrifugal pumps enjoy widespread application partly due to their ability to operate over a wide range of flow rates and pump heads. The centrifugal pump, as the name implies, uses centrifugal force to transfer fluids from one pressure to a higher pressure. Fluid enters …

Many hazards are associated with welding and cutting safety, but as in any other operations they can be controlled by appropriate preventive measures. Unless these measures are taken, the hazardous situations can easily give rise to personnel injury and/or material damage. Welding and cutting hazard examples are:- Electric shock Fumes and gases Welding sparks Arc rays Confined space General work …