Which type of impeller is used in centrifugal pump?

The impeller is the key component of a centrifugal pump. It consists of a series of curved vanes. These are normally sandwiched between two discs (an enclosed impeller). For fluids with entrained solids, an open or semi-open impeller (backed by a single disc) is preferred (Figure 1).

How do I choose a pump impeller?

As a guide, select a pump with an impeller size no greater than between 1/3 and 2/3 of the impeller range for that casing with an operating point in the high efficiency area (see Figure 4-8). It is also important not to go too far right or left from the B.E.P..

What type of pump is used for glycol?

centrifugal pumps
Showing 1 – 24 of 103 products Glycol has a relatively low Specific Gravity and viscosity meaning it can be handled with centrifugal pumps.

What is pump MOC?

viii) MOC for Casing and Impeller. : A I S I – SS 304. ix) Material of construction of all.

How do you make an impeller for a centrifugal pump?

To achieve the better performance for a centrifugal pump, design parameters of impeller such as number of blades, the blade angle, blade width etc have to be considered for the impeller. The rise in head is done only by the impellers action with the help of the blades.

How many number of valves are required for the rotary pump?

Explanation: There are no valves required for a rotary pump. A rotary pump is the one in which the flow is continuous. Since, the flow is continuous, we do not require any valves. 2.

What are the main considerations when choosing an impeller diameter of a centrifugal pump?

The speed and diameter of the impeller determines the head or pressure that the pump can generate. The rotational speed and height of the impeller blades determines the flow that the pump can accommodate [4, 5]. The design of the impeller diameter is critical because it affect the performance of the centrifugal pump.

How do I know what size impeller I need?

The trick is to measure the radius and multiply it by 2 to get the diameter. Measure the outer most tip of the blade to the center of the bore to obtain the radius. Therefore, a propeller or impeller that measures a radius of 3” from the tip of the blade to the center of the bore will have a diameter of 6”.

Is glycol an alcohol?

A glycol is an organic chemical compound belonging to the alcohol family. Within the glycol (another terms for diol), molecule, it contains two hydroxyl groups attached to different carbon atoms. Glycols belong in the alcohol group of chemicals.

Is ethylene a glycol?

Ethylene glycol (IUPAC name: ethane-1,2-diol) is an organic compound with the formula (CH2OH)2. It is mainly used for two purposes, as a raw material in the manufacture of polyester fibers and for antifreeze formulations. It is an odorless, colorless, sweet-tasting, toxic, viscous liquid.

What is impeller hub ratio?

The hub-tip ratio is one of the most important parameters for the impeller. The hub is used to fix the blades. When deviating from the design of the pump it causes the disorder of the liquid flow such as inverse flow at the outlet of the impeller.