When using progressing cavity pumps, slow is better. The initial investment is something the end user is normally afraid of coming up as an one time investment, but It will greatly reduce the consumption of rotors and stators in the long run which is the main turn off when comparing PC Pumps to other style of pumps in the market. Progressing cavity pumps are more than adequate to pump very abrasive and corrosive materials (they even pump explosives when fitted with SS internals), but it is important to size the right pump for the job. In sizing progressing cavity pumps, there are a few factors that have to be considered as Max flow required, working flow, head and lift, temperature, solids size and concentration. There are even different joint sizes between the rotor and connecting shaft or con rod that are more suitable for difference applications. Different manufacturers as Moyno, Seepex, Netzsch, and Allweiler offer different joint types, and materials of construction depending on what fluid you want to handle. They even offer direct couple of motors to the pump as a cost reduction, and space saving feature. So, making the right choice on selecting a PC Pump can be instrumental to love them or hate them.
Let’s start by discussing the biggest size factor on progressing cavity pumps, flow. Over sizing a progressive cavity pump for certain applications can be a killer factor from the manufacturing point of view as price increase substantially with bigger sizes in PC pumps. It is very counterproductive when you have to compete against other manufacturers as one size up in model will take you out of a bidding project, but one size up will reduce the end user cost of ownership greatly. There is also a balance between selling 3-4 stators a year to selling only one and keeping your manufacturing facility going and happy. This is what heavy users of Progressing cavity pumps have found out throughout the years. Please note that whenever engineering is done for a new plant, it is mostly done by a third party engineering company, specially for new plants. They will try to select a pump for the application accordingly to a balance for initial investment, cost, function ability, and cost of ownership. However, it is awarded to the lowest bidder 95% of the time which means pumps will turn faster. Please consider the the pumping elements for a PC Pump are a pipe filled with elastomer (Rubber) which encapsulates a rotor made usually of metal. Basically it fits like a glove on a rotating rubbing piece. The slower you go the longer it will last. there if you can get the volume required for the application with a very low speed, you will be on optimal territory for Progressing Cavity Pumps.
Another factor on sizing PC Pumps is pressure to overcome for the operation of the cavity pump. Most standard construction rotors and stators can stand about 6 bars or 90 PSI per stage on water. You can argue that the construction of the evenwall stator increases the pressure factor to about 10 PSI. There are just a few manufacturers that offer the even wall stator, and it is not very common as of yet. After that 90 PSI per stage, you will star seeing what is called slip. Slip is simply put fluid going back through the interference of the rotor and stator against the direction of pumping. This will create a stator and rotor failure that stars on the discharge side and progress inwards towards the suction side. For example, there are applications where the end user increases the height where he was normally pumping from 10′ to 50′ with the exact same flow. This change reduced his life expectancy of his stators from 1 year to dismal 3 months. That is 4 times the cost of acquaintance for that specific pump. ON this specific application, he had a 2 stage pump, and increased it to 4 stage pump and started getting the same life out of the stator back again. This increase of 2 stages for this pump meant that the pump need to be almost twice as long from the suction to the discharge. So, sizing the PC pump for pressure greatly can increase the foot print of your pump and your initial cost, but reduce your cost of ownership.
Temperature is a limiting factor on pumps manufactured by Moyno, Seepex, Netzsch and Allweiler. There are different kinds of rubber compounds that can be used in stators. There are even stators made out of Teflon or metal which can handle temperature much better than rubbers. There is a way to compensate for the increase dilatation of the rubber by undercutting the rotor and making it thinner. However, temperature is one of the biggest handicap for PC pumps limiting their applications. Moyno pumps have manufactured stators out of metal for applications where temperature is an issue. IN this case you will have to sell the stator as a match set with the rotor as not other will fit interchange. Some times this stator and rotor sets are even manufactured by hand by an very skilled artisan.
PC Pumps are notorious for handling solids rather well. Not only they can handle large size particle, but a high concentrations of them as well. As the rotor turns inside the store of a progressive cavity pump creates this cavity the progresses along the direction of the pump. This cavity is what gives the PC its name and its ability to handle the solids. In some cases, they even have the ability to pump solids with minimum breakage as when pumping grapes. This give an advantage over centrifugal’s and other type of pump designs.
One of the biggest disadvantages of PC pumps are repairing the rotor and stators. Usually the cost of manufacturing another stator is very inexpensive compare to relining the current stator unless the piping material used in the original manufacturing process is Stainless Steel or any other fancy alloy. Most stators are manufactured with carbon steel pipe, and have their ends either bevel or threaded. Rotors, on the other hand, can be resurfaced and most of the times and re chromed. There are places where you can find spare parts for progressive cavity pumps such Moyno, Seepex, Netzsch, and Allweiler for less cost of the Original Manufactured Equipment such as ACCA Pumps. This places specialized in retrofitting spare parts mainly stators and rotors with interchangeability options. This means, for example, mix and match between an OEM stator and an aftermarket rotor.
Overall, Progressive cavity pumps are generally an industry saving option when sized properly and used adequately. They will provide you sometimes with the only option for the application that you are trying to achieve. Oversizing your PC pump in terms of flow, pressure, and solids will provide an advantage to total cost of ownership after its initial cost. Furthermore, there area certain options now-a-day to reduce the cost of those stators and rotors as relining and rechroming whenever possible, and or buying spare parts from companies that will provide you with a reliable aftermarket product that will be able to interchange with your existing pump. This retrofitting will allow you to reduce the cost of ownership of those spare parts.
June 29th, 2013 | Posted in Pump News | Comments Off
Among the many different types of equipment, water pumps is the one thing that most individuals are acquainted with because is widely used for home purposes. Pumps are devices that move or transport fluids, including slurry and liquids, plus they are useful in getting things done efficiently and effectively. Water Pumps have turned into a necessity within our everyday lives, be it at home, at your workplace, or everywhere you go as even our cars have them.
Types of Water Pumps
Well Water Pumps
Inside a well water pump, the motor on the pump makes a suction that attracts the water and pushes it within the pipes. This is how water gets brought to the household unless you have a gravity system. To determine the required potency of the well, you’ll need to check and confirm the number of the water outlets in your house. The horsepower needed for well water pumps to perform also relies on the volume of households sharing that same pump. Well pumps is just about the major pieces of a water system, so they need to be correctly measured in order to function well. Submersible well pumps is really a popular type of water pump helpful to transport water from wells that are deep and require considerable pumping capability. This pump is well known due to its toughness, particularly the stainless-steel types which could resist corrosion much better.
Sump Pumps
Sump Pumps are required exactly where there is built up of water that need to be pumped from a specified area. They are usually installed on a sump; hence, the label Sump Pumps. The most typical applications are residential and industrial.
Garden Fountain Water Pumps
Fountains require transferring water in order to function. Water pumps often is the device that helps fountains produce the attractive and serene effect of running water. Presently, more people are embracing solar powered pumps because it is environmentally friendly as well as helps save a significant amount of electricity for Fountains. It is usually easy to install and maintain.
Water Pumps For Irrigation
Water pumps possess a key role to play in regards to irrigation. They must be correctly selected as a way to match the necessities of the water source and to make the system work effectively and efficiently. The most popular varieties of pumps used in an irrigation system can be classified into the many centrifugal pump types.
Electric Water Pumps
If you are looking for the right electric water pumps to use, make sure to explore all your available options. Finding the right electric-powered water pumps can sometimes be very challenging. There are numerous water pumps that you can choose from and each of these can do something specific. Most people are often clueless when it comes to choosing a water pump; however, you will enjoy the benefits of having a water pump on a daily basis once you have chosen the right one that you actually need.
Pictures of Water Pumps
January 14th, 2011 | Posted in Pump Definitions | Comments Off
De Backer & Co
Nieuwstraat 29
9230 WETTEREN
Belgium
Phone:+ 32 (09) 369 34 96
Fax:+ 32 (09) 369 57 52
email:dbj@duba.be
Product Information for De Backer & Co:
Non-submersible pumps
? Hand Pumps for
– Agriculture
– Food and Drink
– Water Supply
? Rotary displacement: Gear or Vane for
– Other manufacturing
? Reciprocating: Plunger or Piston for
– Commercial Marine and Navy
– Other manufacturing
– Water Supply
? Reciprocating: Diaphragm for
– Other manufacturing
– Water Supply
? Rotodynamic: Single Stage for
– Agriculture
– Food and Drink
– Petrochemicals
– Chemical Industry – Basic Chemicals
– Commercial Marine and Navy
– Other manufacturing
– Water Supply
– Sewage
? Rotodynamic: Multi Stage for
– Food and Drink
– Petrochemicals
– Chemical Industry – Basic Chemicals
– Commercial Marine and Navy
– Other manufacturing
– Water Supply
Submersible pumps
? Hand Pumps for
– Agriculture
– Food and Drink
– Water Supply
? Rotodynamic: Single Stage for
– Agriculture
– Food and Drink
– Petrochemicals
– Chemical Industry – Basic Chemicals
– Commercial Marine and Navy
– Other manufacturing
– Water Supply
– Sewage
? Rotodynamic: Multi Stage for
– Food and Drink
– Petrochemicals
– Chemical Industry – Basic Chemicals
– Commercial Marine and Navy
– Other manufacturing
– Water Supply
August 14th, 2010 | Posted in Pump Manufacturers | Comments Off
Sterling Fluid Systems NV
Zone Gosset – ‘t Hofveld 1
1702 GROOT-BIJGAARDEN
Belgium
Phone:+32 (02) 481 77 11
Fax:+32 (02) 481 77 37
email:John_Niemegeers@sterlingfluid.com
Product Information for Sterling Fluid Systems NV:
Non-submersible pumps
? Dosing and Proportioning for
– Food and Drink
– Pulp and Paper
– Petrochemicals
– Chemical Industry – Basic Chemicals
– Water Supply
– Sewage
? Rotary displacement: Gear or Vane for
– Oil and Gas Production
– Food and Drink
– Pulp and Paper
– Petrochemicals
– Chemical Industry – Basic Chemicals
– Sewage
? Rotary displacement: Lobe or Helical Rotor for
– Oil and Gas Production
– Food and Drink
– Pulp and Paper
– Petrochemicals
– Chemical Industry – Basic Chemicals
– Sewage
? Reciprocating: Diaphragm for
– Food and Drink
– Pulp and Paper
– Petrochemicals
– Chemical Industry – Basic Chemicals
– Water Supply
– Sewage
? Rotodynamic: Single Stage for
– Agriculture
– Mining and Quarrying
– Oil and Gas Production
– Food and Drink
– Pulp and Paper
– Petrochemicals
– Chemical Industry – Basic Chemicals
– Commercial Marine and Navy
– Water Supply
– Building Industry/Services
– Sewage
? Rotodynamic: Multi Stage for
– Agriculture
– Mining and Quarrying
– Oil and Gas Production
– Food and Drink
– Pulp and Paper
– Petrochemicals
– Chemical Industry – Basic Chemicals
– Commercial Marine and Navy
– Power Generation
– Water Supply
– Building Industry/Services
– Sewage
? Rotodynamic: Canned or Magnetic Drive for
– Mining and Quarrying
– Oil and Gas Production
– Food and Drink
– Petrochemicals
– Chemical Industry – Basic Chemicals
– Commercial Marine and Navy
– Sewage
? Rotodynamic: Circulators for
– Commercial Marine and Navy
– Water Supply
– Building Industry/Services
? Rotodynamic: Side Channel for
– Mining and Quarrying
– Oil and Gas Production
– Food and Drink
– Pulp and Paper
– Petrochemicals
– Chemical Industry – Basic Chemicals
– Commercial Marine and Navy
– Building Industry/Services
? Rotodynamic: Mixed Axial or Channel Impeller for
– Food and Drink
– Pulp and Paper
– Petrochemicals
– Chemical Industry – Basic Chemicals
– Water Supply
– Sewage
? Other types of pumps for
– Food and Drink
– Pulp and Paper
– Petrochemicals
– Chemical Industry – Basic Chemicals
– Commercial Marine and Navy
– Power Generation
– Water Supply
– Building Industry/Services
– Sewage
Submersible pumps
? Rotodynamic: Single Stage for
– Agriculture
– Mining and Quarrying
– Oil and Gas Production
– Food and Drink
– Pulp and Paper
– Petrochemicals
– Chemical Industry – Basic Chemicals
– Commercial Marine and Navy
– Water Supply
– Building Industry/Services
– Sewage
? Rotodynamic: Multi Stage for
– Agriculture
– Mining and Quarrying
– Oil and Gas Production
– Food and Drink
– Pulp and Paper
– Petrochemicals
– Chemical Industry – Basic Chemicals
– Commercial Marine and Navy
– Power Generation
– Water Supply
– Building Industry/Services
– Sewage
? Rotodynamic: Mixed Axial or Channel Impeller for
– Food and Drink
– Pulp and Paper
– Petrochemicals
– Chemical Industry – Basic Chemicals
– Water Supply
– Sewage
? Other types of pumps for
– Food and Drink
– Pulp and Paper
– Petrochemicals
– Chemical Industry – Basic Chemicals
– Commercial Marine and Navy
– Power Generation
– Water Supply
– Building Industry/Services
– Sewage
August 14th, 2010 | Posted in Pump Manufacturers | Comments Off
Oy KOLMEKS Ab
P.O. Box 27
14201 Turenki
Finland
Phone:+358 3 53531
Fax:+358 3 5353 200
email:export@kolmeks.fi
http://www.kolmeks.fi
Product Information for Oy KOLMEKS Ab:
Non-submersible pumps
? Rotodynamic: Single Stage for
– Food and Drink
– Pulp and Paper
– OEMs/Machinery Manufacture
– Commercial Marine and Navy
– Power Generation
– Water Supply
– Building Industry/Services
– Miscallaneous Markets
? Rotodynamic: Circulators for
– Food and Drink
– Pulp and Paper
– OEMs/Machinery Manufacture
– Commercial Marine and Navy
– Power Generation
– Water Supply
– Building Industry/Services
– Miscallaneous Markets
August 14th, 2010 | Posted in Pump Manufacturers | Comments Off
Bareja Pumps Pvt. Ltd.
Production Facility Address for Bareja Pumps Pvt. Ltd.:
Budge Trunk Road, Maheshtala, Chandan Nagar, 24-Parganas (S), West Bengal.
Main Office for Bareja Pumps Pvt. Ltd.:
10/1 Princep Street, Calcutta-700072.
033-2379265, 267084, 260772
91-33-2486871
Contact Information for Bareja Pumps Pvt. Ltd.:
Shri K.M.Bareja, Managing Director
033-2379265, 267084, 260772
barejapumps@vsnl.net
Bareja Pumps Pvt. Ltd. has other branches at:
Pump Types Bareja Pumps Pvt. Ltd. manufactures:
End Suction Centrifugal Pumps
API-610 End Suction Centrifugal Pumps
Axially Split Casing Pumps
Vertical Suspended sump Pumps
Vertical Turbine Pumps
Multistage Pumps
Non-clog solids-handling Pumps
Borewell submersible Pumps
Dewatering submersible pumps
Open well submersible pumps
Regenerative Turbine Pumps
Non-metallic or lined pumps
External Gear Pumps
Internal Gear Pumps
August 14th, 2010 | Posted in Pump Manufacturers | Comments Off
Bareja Engg. Inds.Pvt. Ltd.
Production Facility Address for Bareja Engg. Inds.Pvt. Ltd.:
Main Office for Bareja Engg. Inds.Pvt. Ltd.:
4/16-B, Asaf Ali Road, New Delhi-110002.
011-3276731
011-3278526/3276731
Contact Information for Bareja Engg. Inds.Pvt. Ltd.:
Shri L.M.Bareja, Jt. Managing Director
011-3276731
Bareja Engg. Inds.Pvt. Ltd. has other branches at:
Pump Types Bareja Engg. Inds.Pvt. Ltd. manufactures:
August 14th, 2010 | Posted in Pump Manufacturers | Comments Off
Auro Pumps Pvt. Ltd.
Production Facility Address for Auro Pumps Pvt. Ltd.:
Main Office for Auro Pumps Pvt. Ltd.:
225/226 Race Course Towers, Race Course, Baroda-390015.
Contact Information for Auro Pumps Pvt. Ltd.:
Shri Jayesh S. Desai
Auro Pumps Pvt. Ltd. has other branches at:
Pump Types Auro Pumps Pvt. Ltd. manufactures:
August 14th, 2010 | Posted in Pump Manufacturers | Comments Off
Atlantic Agencies
Production Facility Address for Atlantic Agencies:
Main Office for Atlantic Agencies:
Mirza Ismail Road, Jaipur 302001
0141-367465/360342
0141-366879
Contact Information for Atlantic Agencies:
Mr. G.R.Nahar
0141-367465/360342
Atlantic Agencies has other branches at:
Pump Types Atlantic Agencies manufactures:
August 14th, 2010 | Posted in Pump Manufacturers | Comments Off
Asia LMI Pvt. Limited
Production Facility Address for Asia LMI Pvt. Limited:
12, Raja Rajan Street, Visalakshi Nagar, Ekkadutangal, Madras-600097
Main Office for Asia LMI Pvt. Limited:
4, Raja Rajan Street, Visalakshi Nagar, Ekkadutangal, Madras-600 097 Telex: 041-26050
2344200, 2344213
2342505
Contact Information for Asia LMI Pvt. Limited:
Dr. Nallakrishnan, Managing Director
2344200, 2344213
Asia LMI Pvt. Limited has other branches at:
Representatives at bangalore, Bombay, Calcutta, Delhi ang Hyderabad.
Pump Types Asia LMI Pvt. Limited manufactures:
Diaphragm Pumps
August 14th, 2010 | Posted in Pump Manufacturers | Comments Off
