A complete guide to choosing a submersible pump for deep wells in Shiraz

Water supply from underground sources has always been one of the main concerns of the agricultural, industrial and drinking sectors throughout the country, especially in Fars province and Shiraz metropolis. The drop in the level of underground water tables in recent years has made digging deep wells a necessity. In such a situation, the optimal use of these resources requires the use of advanced, durable and efficient equipment. Among the types of water transfer equipment, the submersible pump is known as the most efficient option for extracting water from deep wells.

Choosing a suitable floating pump for Shiraz deep wells due to the special geological and climatic features of this region, requires detailed technical and engineering investigations. In this article, we try to provide a comprehensive guide for choosing this equipment and finally introduce one of the top producers in this field, that is Gazar Pump Industries, so that you can make a purchase with an open and specialized view.

Climatic characteristics and challenges of underground water resources in Shiraz

This increase in depth creates several challenges for pumping systems:

1. Decreasing the water level: The pump must be able to overcome gravity at very high altitudes.
2. Changes in water quality: Water from deep wells in some areas of Shiraz may have high salts, salinity or suspended particles and sand, which accelerates the erosion of pump parts. It can cause serious damage to the electric motor of the floating pump.

According to these challenges, the basic selection of a resistant and optimal submersible pump plays a decisive role in reducing energy and repair costs. Pamp Sazan Gasar Industries has designed products that are well compatible with the water and soil conditions of Shiraz, with a detailed understanding of these needs and local conditions.

What is a submersible pump and how does it work?

Before entering the specialized topics of selection, it is better to get acquainted with the structure of this device. Floating pump, which is also called submersible electric pump in technical terms, is an integrated set consisting of an electric motor and a multi-stage centrifugal (centrifugal) pump. This set is placed vertically inside the well and immersed in water.

The motor part of the pump is completely sealed to prevent water from entering the winding part. When the engine is turned on, the pump impellers located on different floors rotate and direct the water with high pressure towards the outlet pipe and the ground level. Due to being immersed in water, these pumps do not need to be vented, and unlike old self-priming or shaft-enclosed pumps, they are very quiet and have higher energy efficiency.

Key criteria in choosing a submersible pump for deep wells

In order to optimally choose a pumping system for use in Shiraz deep wells, several factors should be considered. Any mistake in the calculation of these factors can lead to the burning of the electric motor, lack of proper watering, or severe waste of electrical energy.

1. Pumping height or pump head

The pump head indicates the height that the pump can lift the water to the consumption point. Head calculations must be done very accurately and include the following:

• Pump installation depth: The height where the pump hangs inside the well.
• Dynamic Water Level: The level of water that is created after the pump is turned on and the irrigation is stabilized.
• Horizontal height of water transfer: The distance from the well opening to the storage tank or agricultural land.
• Pressure drop in connections and pipes: Friction Water in piping, elbows and valves, which must be calculated as equivalent to the vertical meter and added to the total head.

If the pump head is selected less than the required value, the water will not reach the ground or the output flow will be very small. On the other hand, choosing a head far beyond the needs of the well will put additional pressure on the propellers and greatly increase the electricity consumption. Specialists of Gasar Pump Industries can perform accurate hydraulic calculations based on the technical specifications of your well.

2. Flow Rate

Flow rate is the volume of water that the pump removes from the well per unit of time (such as liters per second or cubic meters per hour). The required flow rate depends on your use (agricultural, industrial or drinking). However, the most important limiter of the flow rate is well yield.

If the flow rate of the submersible pump is greater than the capacity of the underground aquifer of the well, the water level will drop quickly, the pump will work without water (dry running) and eventually it will burn due to the overheating of the motor. Matching the pump capacity with the permitted flow rate of the well exploitation license is one of the basic principles in choosing equipment.

3. Diameter of the well opening and dimensions of the pump

Floating pumps are produced in different diameters. Before buying a submersible pump for Shiraz deep wells, you should make sure that the outer diameter of the electric pump body is fully compatible with the inner diameter of the well wall pipe. The pump should fit easily into the well and there should be enough room (at least a few inches of side clearance) for water to flow around the motor to cool the coil. If the well has a deviation or twist in the wall pipe, it is necessary to choose a pump with a narrower diameter.

4. Material of the body and internal parts

Water quality is not the same in different areas of Shiraz. In areas where the water has high corrosive properties, heavy salts or sanding, the use of ordinary cast iron pumps will have a short life. In such a situation, you should go for more resistant options:

Gazar Pump Manufacturers Industries has produced parts with advanced alloy materials by using the world's latest technologies so that the pumps last longer against the harsh conditions of underground water.

Types of floating pumps based on technical specifications

There are different classifications for submersible pumps that buyers in Shiraz should be familiar with in order to make a smart choice based on their use.

Single-phase and three-phase submersible pumps

• Single-phase pumps: These pumps generally have lower power and are used for domestic use, villas, gardens and semi-deep wells that do not have access to industrial electricity.
• Three-phase pumps: For Shiraz deep wells that have extensive agricultural or industrial use, three-phase pumps are the main choice. These electric motors have very high power and provide better work efficiency at high altitudes.

Radial flow and local flow (mixed) pumps

The design type of propellers in submersible pumps determines their hydraulic behavior. Radial flow pumps are suitable for supplying very high heads with medium flow, while mixed flow pumps have the ability to move more water volume (high flow) at medium heights. The choice between these two types of propellers completely depends on the type of project needs and the characteristics of the well.

Important points in installing and maintaining submersible pumps in deep wells

Buying the right pump is only half the way; Proper installation and maintenance will guarantee the life of your pumping system. In deep wells, due to the difficulty of access and the high costs of pulling out the pump, it is necessary to observe the following points:

1. Using protection equipment for electrical panel: Be sure to use smart control panels equipped with thermal switch, phase control and load control to protect the motor from sudden fluctuations in the Shiraz electricity network.
2. Installation of water level control sensors (floater): To prevent the pump from running dry, relevant sensors must be installed in the well to cut off the electricity flow as soon as the water level drops sharply.
3. Using the well power cable Waterproof: The connection of the cable to the motor must be done with fully sealed resin thermal joints. The penetration of the smallest amount of moisture into the cable will cause the engine to burn in the depth of the well.
4. Periodical washing of the well: In the wells that have sand fall, the well should be dredged regularly so that the life of the floating pump impellers does not decrease.

There are various brands of water supply equipment available in the Iranian market, but why is the name Gazar Pump Industries always mentioned as a reliable option in the large industrial and agricultural projects of Fars? The answer that experts give to this question can be summarized in several axes:

The products of this collection are designed based on the real needs and climatic conditions of semi-arid regions such as Fars province. Resistance to voltage fluctuations, the use of high-quality materials to deal with corrosive and sandy waters are among the distinctive features of the products of this industrial unit.

Due to the increase in electricity costs of agricultural and industrial wells in Shiraz, the use of high-efficiency electric pumps plays a key role in reducing current costs. Gazar Pump Industries minimizes the consumption of electrical energy and maximizes the efficiency of water transfer with the precise design of propellers and the use of high-quality dynamos.

The use of modern machining machines and precise laboratory tests in the production line of this factory has caused the output pumps to have the lowest amount of mechanical imbalance. This reduces the vibration of the pump in the depth of the well and prevents the wear of bearings and bushings.

One of the big concerns of well owners in Shiraz is the long-term stoppage of the well due to pump failure and lack of spare parts. The extensive support and fast supply of spare parts by the reliable dealers of this brand across the country gives the consumer the confidence that in case of any problem, the system will be restarted in the shortest possible time.

Choosing a submersible pump for Shiraz deep wells is a sensitive technical decision that requires careful evaluation of variables such as well depth, required flow rate, water quality and electrical conditions. Ignoring any of these parameters can make your investment fail.

To achieve maximum efficiency and ensure the long-term operation of your water supply system, it is recommended to always consult with consulting engineers and specialists in this field. The products of Gasar Pump Manufacturers Industries are a smart and sustainable choice for supplying water from deep wells, relying on modern technical know-how, unique manufacturing quality, and matching the weather conditions of the region. By choosing domestic high-quality equipment, in addition to supporting national production, ensure the stability of water resources and the security of your investment.