Posts Tagged ‘AODD’

What To Consider When Selecting a Filter-Press Pump

Friday, February 2nd, 2018 von admin

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more frequently occurs at the end of a process like wastewater treatment when the waste sludge that has formed must be withdrawn.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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Wilden Donates New AODD Pump To Mercy Ships

Wednesday, January 10th, 2018 von admin

@MercyShips, credit: Shawn Thompson

This new AODD pump is transferring blackwater onboard the hospital ship Africa Mercy, the largest civilian hospital ship in the world. Founded in 1978, Mercy Ships is a global charitable organization that operates a fleet of hospital ships specially designed for use in developing nations.

Many people in Africa have little or no access to healthcare. For nearly 40 years, Mercy Ships has delivered free services valued at more than $1 billion – directly impacting more than 2.5 million children and families. As a state-of-the-art hospital ship, the Africa Mercy brings volunteer medical teams and sterile operating rooms directly to people who would otherwise go without care.

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Almatec: AODD Series Now Available in Stainless Steel

Friday, October 27th, 2017 von admin

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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Wilden: 13 mm (½”) Clamped Metal Pump

Friday, September 1st, 2017 von admin

This 13 mm (½”) clamped metal AODD pump PS1 is equipped with the energy-efficient Pro-Flo Shift Air Distribution System and its clamped configuration allows for easier maintenance, diaphragm replacement and cleaning.

The footprint of this AODD pump matches that of the Wilden PX1, which enables direct replacement of a PX1 with no repiping necessary. With less components and 7% more efficient than the PX1, the backward capability of the PS1 makes it an easy way to enhance and upgrade existing pump performance.

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Wilden at drinktec: Hygienic Pumps & Diaphragms

Wednesday, August 23rd, 2017 von admin

Exhibiting in booth B3-218, Wilden will be featuring its Saniflo Hygienic AODD pumps. Designed to meet and exceed the strictest international regulatory guidelines for food-and-beverage applications, these pumps feature product containment and a straight flow-through design that enables clean-in-place capability. These pumps also offer self-priming, dry run and deadhead capabilities, and are ideal for handling shear-sensitive products. These AODD pumps are validated by both 3-A in the area of CIP and EHEDG cleaning protocol.

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Almatec: Sanitary AODD pumps

Monday, August 7th, 2017 von admin

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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Wilden: New E-Commerce Store

Thursday, July 20th, 2017 von admin

Wilden, focused on air-operated double-diaphragm (AODD) pump technology, announced the launch of its new e-commerce store.

The Wilden Store provides end users with an online shopping environment. Not only can end users easily find appropriate and authentic spare parts and accessories for their Wilden pumps, but they can also find comparable Wilden pumps based on competitor part numbers.

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Tapflo: New series of diaphragm pumps

Wednesday, June 28th, 2017 von admin

The new TC pumps are fitted with LEAP – Low Energy Air Pump – technology used in AODD pumps to reduce the minimum operating air pressure by reducing internal losses and friction. LEAP uses a indirect system to detect the position of the diaphragm shaft controlling the diaphragm movement automatically.

The TC pump is able to start pumping at 0.1 bar without stalling. Key benefits are

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Wilden: New Diaphragms for Industrial Applications

Monday, May 22nd, 2017 von admin

The new Chem-Fuse diaphragms are specifically designed for industrial applications. The Chem-Fuse diaphragm technology eliminates the potential leak point at the outer piston as well as outer piston abrasion. This is crucial for industrial applications that pump abrasive or dangerous fluids. The diaphragm design also offers easy cleanability for faster changeovers between products. These features allow Chem-Fuse diaphragms to enhance productivity, reliability and safety.

An additional benefit of Chem-Fuse diaphragms compared to other reduced-stroke integral piston diaphragms is the use of a large integral piston and full-stroke shaft that provides greater efficiency. This design allows Chem-Fuse diaphragms to provide up to 100 % increased flow and suction lift compared to other diaphragms.

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Tapflo: USP VI approved pharmaceutical pumps

Thursday, May 18th, 2017 von admin

The independent, Swedish, family owned, manufacturer and global supplier of air operated diaphragm pumps introduces the USP approved (United States Pharmacopoeia) hygienic PE pump. The Pharmaceutical series is developed in co-operation with one of the world leading supplier to the biotech market. It is produced to serve the biotech- and pharmaceutical industries in numerous applications.

Main features are:

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