The actual Top 10 posts on Δ p GLOBAL Online:

1. Netzsch: Downhole progressing cavity pump with submersible drive
2. SPX Flow strengthens ties with the Tapflo Group
3. Siemens: Pressure transmitters for remote commissioning of functional safety
4. AS-Schneider: Metal seated ball valves for up to 420 bar and 450 °C
5. Grundfos: Providing the best water in Karelia
6. Circor/Allweiler: “Play globally – but act locally”
7. Schunk: Technical Paper – High-performance carbon – the service life extender for pumps
8. KSB: Impeller improves suction characteristics in high-pressure pumps
9. Almatec: AODD pumps with a solid plastic design
10. KSB: New app simplifies pump operation

The actual Top 10 posts on  Δ p Online in German:

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The new C-Series pumps have been specifically developed by Almatec to be a cost-effective alternative. The housing parts are tightened to each other via housing bolts. All of the C-Series’ bolts are tightened together against a diaphragm-sized ring on each side of the pump.

This design distributes the forces of the housing bolts onto the housing parts evenly, providing a consistent flow of forces that increases bolt torque and improves pump safety.

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The new MM Series AODD pump is specifically designed to meet the strict standards, regulations and operational requirements that govern the food and beverage industry. Typical applications include the transfer and filling of beverages, sauces and toppings, dosing of food and beverage ingredients; processing of meat, pastry dough, smoothies, fruit pulp and candies; and the transfer and filling of cosmetics.

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The actual Top 10 posts on Δ p GLOBAL Online:

1. Allweiler:_Maintenance-in-place-solution for progressing cavity pumps 
2. Almatec: What To Consider When Selecting a Filter-Press Pump
3. Andritz to supply irrigation pumps for Egypt
4. Grundfos appoints Catherine Yang as new Head of China Sales Region
5. Fristam: Single-flow twin screw pump for industrial applications
6. Lutz: Barrel pump for food, pharmaceutical and cometics industry
7. KSB: Pump acceptance testing – now online
8. PSG at Anuga FoodTec 2018, Cologne
9. KSB: Self-cleaning tank inserts for waste water tanks
10. John Crane showing innovative solutions at Achema 2018

The actual Top 10 posts on  Δ p Online in German:

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PSG has been providing pumps for the food and beverage industry for over two decades. The PSG brands that serve this market meet the strict requirements for hygienic transfer with certifications like 3A, FDA, EC 1935/2004 and EHEDG, providing solutions that safely transfer high value fluids. The exhibition motto at this year’s show is “Resource Efficiency,” which refers to utilizing resources in a sustainable and optimized way to minimize impacts on the environment, or in other words, to deliver greater value with less input. Specifically, the PSG brands that will be on display at this year’s show include:

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Fig. 1 A typical chamber filter press being fed by a Almatec high-pressure air-operated double-diaphragm (AODD) pump

Technical paper by Peter Schüten:

High-Pressure Air-Operated Double-Diaphragm (AODD) Pumps Deliver The Operational Advantages Necessary For Optimized Operation Of Chamber Filter Presses.

In many industrial processes that feature the handling of liquids, the substances that are being transferred may occur in an aqueous or “muddy” state, with the liquid portion needing to be removed. This liquid-removal stage may take place during the production process – for example, in the filtration of edible oils or yeast solutions – but it more frequently occurs at the end of a process like wastewater treatment when the waste sludge that has formed must be withdrawn. Since the disposal of such sludges is calculated based on weight and volume, their thickening and drying is particularly lucrative for the processor. During the thickening and drying process, the sludges are treated using chemicals and/or physical processes so that the waste sludge forms into flake-like solids. After adjusting the pH level to neutral or alkaline via the use of milk of lime, the subsequent dewatering process separates the water for disposal, with the remaining volume of sludge significantly reduced.

The simplest technology for this process involves collection and thickening of the sludge through the use of gravity. However, it is significantly more effective to use technical drying methods via processes such as centrifuges and evaporators, or more commonly, chamber filter presses (Fig. 1).

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The Futur S/SH pump series is now available in 316 stainless steel with high surface finish for the transfer of pure solvents in the semiconductor industry.

Realizing the importance of reliable and contamination-free pump performance in critical semiconductor operations, Futur S/SH Series pumps are cleaned several times, then assembled and tested in a cleanroom line before being released for delivery. Futur S/SH Series pumps incorporate a “straight-through flow pattern” with only one wetted housing part (center housing) while the air control system and the air chambers are located in the side housings.

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The Biocor pumps have been specifically designed for critical sterile applications, and meet the strict standards, regulations and operational requirements that govern the food and beverage industry because they contain no horizontal areas. Available with a 316L polished stainless steel wetted path, these pumps provide superior containment and utilize ball-lifting magnets that can be attached to the pump housing from the outside at the location of the four ball valves. With the use of magnets, the ball valves can be lifted from their seats, allowing the pump to be drained entirely without needing to be disassembled or removed from the application. This enables clean-in-place (CIP) and sanitize-in-place (SIP) capabilities.

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The actual Top 10 posts on Δ p GLOBAL Online:

1. KSB: New efficient high-pressure pump
2. Daurex: An evolution of progressing cavity pumps
3. Neptune: New Metering Pump
4. Almatec: High-Pressure Pump Series  
5. Sulzer launched a Retrofit App
6. Flowserve: Seal Failure Analysis App
7. Sulzer introduces new lifting stations
8. EnviroGear: 3”, 4” and 6” Metal Sealed Internal Gear Pumps
9. KSB opimized mechanical seal for waste water pumps
10. Sundyne: API 685 Sealless Pumps     
    

Here the actual Top 10 on  Δ p Online in German

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This new high-pressure pump series AHD/AHS are developed for applications up to 15 bar (218 psig) such as filter press applications.

The “D” in AHD stands for Duplex, which means the reinforcement of the drive pressure is more than 2:1 by the internal pressure boosting stage. This is achieved thanks to a maximum drive pressure of 7 bar (100 psig), which allows the AHD to build up discharge pressures up to 15 bar (218 psig). AHD Series pumps are available in three sizes (AHD 15, 25 and 40) with maximum capacities of 4, 10 and 20 m³/h (17, 44 and 87 gpm).

The new AHS Series, which does not include an internal pressure booster, features an extremely rugged housing making it suitable for higher discharge pressures. The “S” in AHS stands from Simplex, meaning the drive pressure is transferred to the medium in a ration of 1:1.

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