Borehole, how much water can I extract
Borehole, how much water can I extract When trying to determine the volume of water one can draw out of a borehole, it is crucial to have an accurate water yield test report. The driller of the hole will conduct a draw down test to determine how much volume the aquiver is providing to the specific well (hole). Should it be producing 100 litre per minute for example, we recommend that the user not install a pump greater than 50% of the yield. The reason for this is that the actual well will not pull down completely and the level in the hole will remain static with a 50% draw from the yield. Premature borehole collapse is encouraged by rapid adn excess extraction by installing borehole pumps which are capable of removing the full yield volume or even more per minute. Pedrollo 4 SR submersible deep well pumps provide a quality and efficient solution to both standard and solar power options. In South Africa we do not find any demand at this stage for 6″ pumps. Please contact our sales team for qualified free information and assistance in pump selection.
water pump selection
water pump selection Water pump selection assistance from Pedrollo pumps South Africa The most common issue a prospective buyer of a water pump for domestic use has is trying to determine the type and model pump to purchas. The major stumbling block is not knowing what to ask for? Where does one start with providing information for the pump supplier in order to have them assist you in determining the type or size of pump you may need. Going through a load of pump data to try to determine the correct unit for your use is time consuming and can become stressful. When things get a little hectic, give us a call or mail us at support@pedropumps.com for assistance. BEFORE YOU MAIL OR CALL….. Here is a quick guide with the information you will need to give your pump suppliers:- Guidelines for your enquiry:- Please have the following information available when requesting a pump quotation. Flow rate, Pump fluid flow rate in litres per minute. Static Head, the highest point to which the pump must elevate the fluid is known as static head. It is measured from the centre body of the volute casing to the maximum vertical height of the discharge pipe above the pump. Friction Head, the friction loss that the fluid will develop while travelling through the pipe system. In terms of water this is easily determined by consulting a friction loss curve. You will need to know the total length of the pipe and the internal diameter of this pipe. Suction condition Another piece of information you will need is the suction condition you expect the pump to operate with, is it flooded (water level above pump centre body) self priming (pump is above water level) Submersible (pump is located inside the water body? Once you have this basic information, you are ready to send your mail or make a call to sales as per the contact details above. Please email this information for accurate and fast responses.
Pedrollo pump AL RED stainless steel
pedrollo pump al red Pedrollo pump al red model in stainless steel The pdf file can be downloaded here Pedrollo AL-RED_EN_50Hz AL-RED The Pedrollo Stainless steel centrifugal pump model AL Red is specifically designed to handle clean water for use in domestic, industrial, agriculture or aquaculture systems. The unit is an end suction design and is specifically for surface mounting in a flooded suction system. Typical applications would include water supply systems, fruit and vegitable washing, laundry water supply, water treatment plants, small greenhouse or external irrigation systems. In South Africa these units are also used by small fruit juice manufacturers for both mixing and decanting of the mixing systems. Coupled to our GM Mixers (request information) this pump makes the ideal equipment mix for the small fruit juice, detergent or laundry liquid softner manufacturer. Please email our technical help line for more information :- support@pedropumps.com
Pedrollo pump catalogue
Pedrollo pump catalogue The Pedrollo pump catalogue includes our high quality, in demand, water pressure pumps. The Pk series peripheral impeller design is very popular in small pump systems. CLICK here In South Africa, with our recent water shortages it has almost become a necessity to install grey water or rain water systems. Pedrollo water pumps for pressure pump purposes are a great option for the small home, garden, irrigation or car wash system. A water tank with a water pump completely equips the homeowner with a basic water supply system which is capable of processing grey water and harvested rain water. While Pedrollo provides a centrifugal pump for most small applications the pressure pump market demands reliability and quality. The Pedrollo pump design studio in Italy is fully equipped to research and manufacture pumps which are extremely efficient. Our pumps are sought after in all countries of the world because of their reliability and low cost of ownership. Pedrollo Contacts for South Africa emails:- For help with pump selection and pricing sales@pedropumps.com For assistance with supply or any further information support@pedropumps.com
water pump selection tips
How to select a water pump for my needs? Some useful information on “how to select a water pump for my needs” follows. Before one starts to determine which pump is the best type of pump or the correct size etc., there is basic information you need to know. This post is our tip on the basics you need when enquiring about your pump needs. Guidelines for your enquiry:- Pump fluid flow rate in litres per minute. Static Head, the highest point to which the pump must elevate the fluid is known as static head. It is measured from the centre body of the volute casing to the maximum vertical height of the discharge pipe above the pump. Friction Head, the friction loss that the fluid will develop while travelling through the pipe system. In terms of water this is easily determined by consulting a friction loss curve. You will need to know the total length of the pipe and the internal diameter of this pipe. Another piece of information you will need is the suction conditionyou expect the pump to operate with, is it flooded (water level above pump centre body) self priming (pump is above water level) Submersible (pump is located inside the water body? Once you have this basic information, you are ready to send your mail or make a call to sales as per the contact details above. Email sales@pedropumps.com or support@pedropumps.com for a full quotation with technical detail.
Pump pressure control system
Pump pressure control system The simple pump pressure control system available from Pedrollo, South Africa has many advantages. We often have the request to assist with the design on systems where water is pumped from a dam. river. pond/ bulk storage to a service tank next to a home etc. The problem seems to occur when the user becomes embroiled in working on complicated control systems and ends up with horrific costs for cable runs or radio telemetry systems. The simplest system to use is to have the pump fitted with either an electronic pressure/flow controller like the Pedrollo Easy Press or a Hyrdrosphere/pressure switch system. Pedrollo Easypress This controller activates if it recognises a flow demand and / or a pressure set point. The really great feature of the Pedrollo Easy Press is that it has a storage vessel to buffer the pressure on/off switch. This buffer zone is fantastic for two purposes, potential dry run operation (lack of water on the suction side of the pump like an empty dam or low water level in the source) and long discharge pipe lengths. This buffer is essential to enable the unit to switch positively and not to instantly switch when the contacts would close and open with oscillating flow. Once one has a pump fitted with an automatic controller the rest is relatively simple. A ball float valve or a solenoid valve at the point of delivery completes the cycle. Basically the pump reacts to the line pressure. In this case the ball float valve in the receiving tank rises and closes the valve, pressure in the line builds and flow slows. As the flow stops with the closed valve condition, the controller (which is located at the pump and can be up to 200 meters away from the pump) stops the pump. Water usage from the tank will drop the water level, the ball float drops with the water level, opening the valve, releasing pressure and generating flow. The controller sees the resultant flow and pressure drop and the pump starts. We do like to use the older technology HYDROSPHERE PRESSURE PUMP systems in long er pipe runs. The size of the hydrosphere must be linked to the pump flow at the operational head of the system. We like this system for very long pipe runs up to a few Km due to the added protection provided to the motor for stop/start conditions. The hydrosphere tends to absorb and delay stopping and starting due to pressure and flow variations in longer pipe runs, small leaks, air entrainment etc. One does need to ensure that the pumps are protected with the correct overload protection. We like to recommend a proper control panel be installed with the pump which includes surge protection. In Southern Africa with power cuts, brown and black outs which can be frequent, it is crucial to ensure the electrical components are adequately protected. The above represents the simplest way of controlling a pump remotely without using […]