Dewatering

Air diaphragm pumps are widely used in a variety of applications due to their versatility. Air operated double diaphragm pumps feature few moving parts, with no motor, base plate or other peripherals required. The design style, coupled with its positive displacement functionality, allows for the transfer of shear sensitive products with self-priming up to 25 feet. Air diaphragm pumps feature low initial investment as well as low replacement costs for wear parts when compared to other pump types.

Atex options are available

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The TRANS-FLO gold product line features a rugged anodized aluminum piston-style air valve system, capable of functioning in the harshest compressed air conditions, emphasis on mining, construction and utilitarian applications. The TRANS-FLO GOLD system also features the fewest moving parts in the diaphragm pump business, allowing for ease of maintenance, assembly and disassembly.

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Rotary lobe pumps are equally suitable for low and high-viscous media. Due to their large free ball passage and low rotational speed they are relatively tolerant to blockage and solid materials in the medium. Varying solid content and thereby caused pressure variations are no factor to the flow. Their performance capacity is higher than that of many other positive displacement pumps of the same type. As energy is the most decisive factor of life cycle costs this is one of the most important benefits of this pump technology.

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Air operated double diaphragm pumps are widely used in a variety of applications due to their versatility. AODDP's feature few moving parts, with no motor, base plate or other peripherals required. The design style, coupled with its positive displacement functionality, allows for the transfer of shear sensitive products with self-priming up to 25 feet. Air diaphragm pumps feature low initial investment as well as low replacement costs for wear parts when compared to other pump types.

Advantages of AODD pumps can include:

• Chemical compatibility
• Self priming
• Ability to dead head
• Variable speed
• High viscosity
• High pressure
• High temperature
• Large particle size
• Portability

Macnaught Pty Ltd is a leading designer and manufacturer of quality lubrication and fluid transfer equipment into markets such as agriculture, automotive, mining, aviation, industrial and marine. Macnaught is also globally renowned for the manufacture of high quality, oval-gear, positive displacement flowmeters that are known for their reliability, durability and overall design excellence.

Macnaught Pty Ltd, a privately owned company established in 1948, has been designing and manufacturing premium quality fluid measurement, fluid transfer and lubrication equipment for the agricultural, automotive, industrial, mining and transport industries across the globe for over six decades. 

Leaders in our field, we design and manufacture world-class products with a commitment to excellence as one of our main goals. 

We maintain our leading position in the market through strategic distributorships, innovative design, technical expertise and dedicated people. 

Macnaught continues to lead the market by providing its strategic partners with superior product options and quality service to ensure ongoing loyalty. We value the relationships we maintain in the industry and are committed to ensuring we continue to add value to the businesses we serve.

Through enhanced R&D, manufacturing, warehousing, sourcing and distribution capabilities, as well as the ongoing design and development of new products, Macnaught is well positioned for substantial growth and maintaining our leading position in the market.

Macnaught's mission is to always exceed industry standards with its products and services.

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The Wilden® family of Air-Operated Double-Diaphragm (AODD) pumps has proven its rugged durability and reliable performance in countless installations since 1955.

As the inventor of the Air-Operated Double-Diaphragm (AODD) pump, Wilden remains the trustworthy industry leader by pioneering new innovations while providing unparalleled excellence in customer satisfaction. Wilden has also developed state-of-the-art Air Distribution Systems (ADS) that significantly increase positive displacement pump productivity by reducing air consumption and maintenance for the most energy-efficient AODD pump operation possible.

Wilden has an Air-Operated Double-Diaphragm (AODD) pump for almost every industrial application and process, including:

• Abrasive particles, • Acids, • Alcohol, • Beverage, • Cement, • Chemicals, • CIP (cleaning in process), • Dairy, • Food, • Fuel, • Gases, • Glues, • Hygienic, • Industrial, • Lubricants, • Paints and Coatings, • Petroleum, • Pharmaceutical, • Slurries, • Sugars and syrups, • Water – incl Wastewater, • Wine

Available in various sizes from 1/4" up to 4". With a wide range of elastomers available to suit your application

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Wilden®plastic pumps are specifically engineered for maximum performance and efficiency in a variety of applications. In choosing a plastic pump over a metal pump, price, chemical compatibility and mobility come into play. Wilden plastic pumps are lighter compared to metal pumps and therefore easier to transport.The Wilden Advanced Series AODD plastic pump is lighter compared to metal pumps and is easier to transport. When chemical compatibility is critical, plastic AODD pumps provide an outstanding option over metal pumps that are incompatible with certain chemicals. The bolted configuration ensures total product containment optimised liquid path reduces internal friction to maximise output and efficiency. The clamped configuration ensures reliability without sacrificing ease of maintenance. The clamp bands are easily removed for replacement of diaphragms and easy cleaning.

A variety of elastomer options, including Teflon® PTFE, are available to meet abrasion, temperature and chemical-compatibility requirements. The Bolted Series plastic pumps are offered in polypropylene, PVDF and Teflon® PFA. A variety of options, such as ANSI and DIN flanges, and specialised air distribution systems (ADS) are available to meet specific application requirements.

Wilden has an Air-Operated Double-Diaphragm (AODD) pump for almost every industrial application and process, including:

• Abrasive particles, • Acids, • Alcohol, • Beverage, • Cement, • Chemicals, • CIP (cleaning in process), • Dairy, • Food, • Fuel, • Gases, • Glues, • Hygienic, • Industrial, • Lubricants, • Paints and Coatings, • Petroleum, • Pharmaceutical, • Slurries, • Sugars and syrups, • Water – incl Wastewater, • Wine

Available in various sizes from 1/4" up to 4". With a wide range of elastomers available to suit your application

Any type of fluid pump such as Air Operated Double Diaphragm, Metering, Hose, or Centrifugal pump will ultimately create uneven pulses in your system just due to its fluctuating nature.  However, over time this will quickly wear out the components of your pump as well as the overall system, often leading to sudden cracks in the pump or damage to the equipment.                    

A pulsation dampener is designed to absorb and give pressure when needed in order to smooth out the flow and reduce up to 99% of pulsation and shock in the system. Don’t wait until it’s too late; protect your system from the beginning.  Learn more about dampeners for any application:

Standard Pump, Inc. began manufacturing Drum Pumps in 1992 in Snellville, Georgia.

Over the next twenty-five years, we have expanded the product line to include Air-Operated Double Diaphragm pumps (AODD) as well as Metering Systems.  Our Fluid Handling Equipment serves the Chemical, Food, Beverage, Cosmetic, Pharmaceutical and Automotive industries in fifty-two countries.

Today, we continue our commitment to manufacturing high quality Fluid Handling Equipment in our modern ISO 9001 certified factory in Duluth, Ga.  All Standard Pump products adhere to stringent safety guidelines set for by agencies such as Underwriter’s Laboratories (UL), CSA, 3A, ETL and the FDA.

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The Grundfos CR vertical, multistage, centrifugal in-line pump family works for water supply, water treatment and almost any industrial solution – including those for high-pressure, hot, dangerous, flammable and aggressive liquids.

Now, the range has been upgraded with a new, more robust generation of CR pumps (CR 95, CR 125 and CR 155), offering an optimised hydraulic design for world-class energy efficiency.

Thanks to a small footprint, the pumps are also easier and less costly to install than comparable pumps.

The new CR pumps have been developed using simulation-driven design to perfect every single component and have been field-tested around the world, so you can install and operate the range with total confidence.

The CMB is the horizontal alternative

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Grundfos SP submersible pumps are renowned for their high efficiency and reliability throughout the range. Made entirely of corrosion-resistant stainless steel, SP pumps are ideal for a wide variety of applications.

Grundfos SP pumps represent state-of-the-art hydraulic design. Built to deliver optimum efficiency during periods of high demand, the SP pumps provide low long-term costs and high operating reliability regardless of the application.  

The Grundfos SP range offers high efficiency, high resistance to sand and other abrasives, motor burnout protection, and easy maintenance. A complete monitoring and control system is available for constant optimisation of the pumping system.

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Heavy duty cast Ni Al bronze & cast 316 stainless steel, self priming, centrifugal electric drive pumps with high pressure and flows available in a range of sizes from 1” through to 4”.  

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The Unilift AP and Unilift AP Basic are submersible drainage pumps designed for both temporary/portable installation and permanent free-standing installation. These single-stage pumps are made mostly of stainless steel. All types are available in either single phase or three phase versions and for 50 or 60 Hz power supply.

The number in the type designation, e.g. AP12, indicates the spherical particle size that can pass through the pump.

All Unilift AP and AP Basic pumps are fitted with a plug for connection to the mains.

Unilift AP is a single stage pump with either semi-open impeller (AP12) or with vortex impeller (AP35 and AP50). All Unilift AP pumps are fitted with a stainless steel sleeve for cooling during operation. The strainer at the bottom prevents particles larger than the pump is designed for from entering the pump. The strainer is clipped onto the pump housing. All Unilift AP pumps can be supplied with or without float switch, for automatic or manual operation. Pumps with an ”A” in the type designation are fitted with a float switch. 3-phase versions have an additional starter box connected to the float switch. The outlet is positioned at the top of the pump and is available in Rp 1 1/2 to Rp 2.

An optional non-return flap valve can be fitted in the outlet in order to prevent backflow.

Unilift AP Basic pumps are single-stage pumps (AP35B, AP50B) with vortex impeller. All Unilift AP Basic pumps are made of stainless steel, with a composite baseplate. The Unilift AP Basic range is designed for submerged operation, either free-standing on the base plate or installed using an auto coupling. The pump inlet is designed to prevent to large particles from entering the pump. The base plate is clipped on by means of four clips hidden under the composite ring at top of the pump housing. The ring prevents dirt from sticking to the clips. All Unilift AP Basic pumps can be supplied with or without float switch, for automatic or manual operation. Pumps with an ”A” in the type designation are fitted with a float switch. The outlet is positioned at the side of the pump and is R 2.

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A pressure boosting system is designed to increase low pressure in a water system in order to achieve sufficient water flow and pressure to consumers.

Pressure boosting systems generally consist of one or more pumps which are installed in a booster system to increase the pressure in a system to a certain point independent of flow and inlet pressure.
 
System configuration
Pressure boosting systems are available in various system configurations, each offering different advantages and characteristics such as comfort level, initial investment cost, running costs, flexibility and supply assurance.
 
Examples of pressure boosting configurations:

• Direct boosting systems: A system where a booster set connected directly to the water mains serves the whole building or only the upper parts of it.
• Zone divided systems. Here, a number of boosters connected to the water mains or a common break tank serve their own pressure zone.  
• Roof top tank systems. Here, a booster fills up a roof tank from where the water uses gravity to run to the consumer. This system often has a separate booster set serving the upper floors where the pressure is too low due to insufficient geometric height.
• Series connected system with intermediate break tanks. Here, every booster serves its own pressure zone in a building, drawing from its own break tank which is located on a separate floor. 
• Series connected system without intermediate break tanks. Here, the boosters are connected directly in series.  

 
 
Variable Frequency Drive (VFD) controlled systems
VFD controlled systems can deliver the exact needed amount of water thus ensuring that only the needed energy is consumed. These systems also have the advantage that the set point can be altered according to the flow, ensuring that the energy loss due to resistance in pipes is reduced. So even though the initial investment in such a system is higher than in a non-VFD system, the low running cost, the high comfort level and the flexibility of the system often justify the investment. 

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