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
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 […]