Pumps & Valves

Snack attack continues for hungry Chopper Pumps

At a London-based snack-food manufacturer, Landia has just supplied its 25th pump in a partnership that is now celebrating its 20th anniversary.

Supplying branded and private-label snack and crisp products for both independent and major retailers within the UK and across Europe, the food manufacturer began using Landia long-shaft chopper pumps two decades ago to transfer effluent from below-ground pits to its wastewater treatment plant.

First supplied as 5.5kW units, but in more recent years as 7.5kWsome of the original smaller chopper pumps are still working, with only a bare minimum of basic wear and tear parts ever required.

Landia’s MPG-I long-shaft vertical chopper pumps are designed with a fan-cooled motor that sits above the liquid surface and is therefore well protected. The pump contains no seals, which makes it extremely robust and tough.

This latest long-term landmark for Landia follows its recent milestone with North Wales-based KK Fine Foods (manufacturers of high-quality meat, fish and vegetarian meals), where its wastewater mixing and aeration system has completed five years of uninterrupted service. Landia has also provided numerous wastewater pumping, mixing and aeration solutions to the food and drink industry, including at Hook Norton Brewery, 2 Sisters Food Group and Aspall Cyder.

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CUSTOM ACTUATED BUTTERFLY VALVES FOR IRAQI OIL REFINERY

 

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When a major Iraqi-based oil refinery required custom actuated butterfly valves for a large-scale plant refurbishment, T-T Flow’s expert product knowledge, access to quality manufacturing partners and extensive export experience made us the ideal choice to deliver a robust, reliable and fully compliant customised solution both on-time and within budget.

THE PROBLEM

During a major refurbishment project at a plant operated by South Refineries Company in Iraq, there was a requirement for custom actuated butterfly valves constructed of materials that needed to be fully traceable and certifiably of UK, EU or USA origin.

As the client specified non-standard materials, a completely customised valve build was required. To ensure full compliance, the valves underwent several independent third-party functional inspections and even the chemical analysis of components, along with the supply of extensive expert documentation including attested embassy origin certificates.

In addition to the non-standard materials, the client specified actuator connectivity to integrate with existing control panels and operating philosophy.

THE SOLUTION

T-T's expert product knowledge, access to quality manufacturing partners and extensive export experience made us the ideal choice to supply this actuated valve package within budget and on time. 

Supplied indirectly through an Iraqi-based specialist engineering company, we assembled and supplied 30 lugged centric butterfly valves to EN598, rated to 175psi with limit-set directly mounted non-modulating 230V/60Hz actuators.

To meet client specifications, the valves have a chemical resistant epoxy coated carbon steel body, acid resistant stainless steel (grade 1.4404 / SS316L) discs, EPDM liner, and are suitable for installation between ASME B16.5 Class 150 flanges.  

Versatile actuators were selected, offering quarter-turn reliability, weatherproof IP68 enclosure, feedback functionality and manual override. T-T identified proven partners that would ensure end-user acceptance and functional longevity.

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T-T Flow were able to select, source, assemble, coordinate third party inspections, undertake comprehensive in-house hydrostatic and functional testing, and arrange global logistics, offering the end user full assurance. We also produced an instructional video detailing step-by-step actuator settings for trouble-free site commissioning.

T-T are experts in the design and manufacture of custom valves and associated ancillary equipment, utilising our expert product knowledge, manufacturing partners and extensive export experience to deliver solutions to even the most challenging projects. Our flexible approach allows the supply of just a single valve, a combination of stock products, or the ability to work with our clients to provide a complete engineered valve package, as was the case with this project.

Explore our range of valves or find out more about our custom valve solutions. For expert advice, chat to our friendly and knowledgeable team on +44 (0)1630 647200.


 This article also featured in the December/Jan issue below

 

 

 

How Sealless Pump Technology can Reduce Maintenance & Pump Wear

A customer contacted us who was experiencing issues with their vane pump handling a new blend of adhesive consisting of 3 parts -Solvent, Resin and Ceramic. They were experiencing high levels of wear with their vane pump with the mechanical seal repeatedly failing, allowing air ingress into the pump, hazardous flammable liquid would leak from the casing, and end product would fail to meet quality standards. 

At each breakdown not only did wearing parts have to be replaced, but the casing and any small parts would require a full clean using hazardous chemicals to remove any product set. When the seal leaked, product would ingress into the bearings, quickly rendering them useless. Maintenance required at least two people, and the downtime that the factory was experiencing was annualised at over £200,000 of lost product output per year.

The Vane pump was feeding a batching line which would batch fill containers on an assembly line before bottles were packaged, and dispatched for delivery. Having to repeatedly disassemble the vane pump, change the seal, bearings and vanes meant repeated stoppages which the plant could no longer accept.

The capacity of the existing unit was between 5-15L/min with a discharge pressure of 4 bar. The glue had a viscosity similar to Ketchup (1000cps) but Various pump technologies were studied before finalising our specification for an ATEX(UKCA EX) roller Peristaltic pump controllable via Variable Frequency Drive. This design of pump which contains a single wearing part – a hose eliminating any chance of mechanical seal failure, and more importantly air ingress contaminating product. 

Our Low Maintenance Solution

Hose pumps are of non clog design meaning there was no chance of blockages forming within the pump. They are of positive displacement design meaning the pressure will be constant, and flow rate proportionate to speed. This meant that the speed of dispensing and bottling could be altered according to line speed.

As solvent can attack cast iron the unit was coated in Halar. Halar is a type of plastic coating highly resistant to temperature fluctuations, chemicals and corrosion, protectingthe pump in case of spillage or liquid escapement should the hose fail.

The ATEX (UKCA EX) Peristaltic pump was supplied with a motor suitable for operation via external variable frequency drive. The customer had existing 1¼ inch NPT fittings which we had fitted to the pump to enable plug and play operation. 

The main difference in output flow from the Peristaltic to the vane pump is that vane pumps do not have a pulsating flow. To ensure accuracy within their liquid filling packaging machinery we supplied the pump complete with an inlinepulsation dampener which eliminates up to 98% of pulsations during operation, meaning the customer receives a smooth linear flow important for flowmeter accuracy during dispensing, and that containers are not over or underfilled as an unintended consequence.

Process Improvements, Payback Period, & Outcome

The customer received the pump within 3 weeks of order and is set to save over £200,000 in lost output with a payback period of less than 1 month. 

Maintenance is far simpler requiring only one person with the pump kept in situ. As there is only one wearing part – the hose, when this approaches the end of its useful life, it is removed from service, sent for disposal and replaced without any cleaning of parts using hazardous chemicals and added risk to personnel. 

Furthermore as the plant had experienced some restructuring with team members who had expertise in pump overhaul and maintenance leaving the business, having such a simple to maintain solution accelerated training and meant outside expertise was not required. 

If you are experiencing frequent pump downtime, repeated maintenance or seal replacement speak to us on 01773 302 660 or visit www.northridgepumps.com to see how we can help.

MSE Systems bring in Landia pumps and mixers to help treat potato effluent

Following the successful installation two years ago of Landia Chopper Pumps and a Landia Aeration System, MSE Systems is set to install a further three units from Landia for one of the UK’s leading supplier of potatoes.

During an upgrade to the customer’s potato processing factory, Chesterfield-based MSE Systems found that the addition of a high-efficiency Dissolved Air Flotation (DAF) plant would improve the activated sludge process by reducing oxygen demand. To ensure that the plant could meet future needs, a new chemical addition system was introduced to remove suspended solids, free emulsified oils, grease and elevated residual phosphorus.

For odour control, an 11kW Landia AirJet system was installed to mix, aerate and control odours of screened potato effluent in a balance tank. In addition, two submersible Landia Chopper Pumps were brought in to pump screened potato effluent from a 4.5m deep pit (500m away), which included an additional 4m lift.

Andy Neal, Design Manager at MSE Systems, said: “Our challenge, which meant utilising a very small footprint between the existing plants, was to help our customer meet and maintain a stringent Environment Agency discharge consent, so that they remain fully compliant. The Landia AirJet and Chopper Pumps have proved very reliable and cost-effective, so it gave us the confidence to invest further in this equipment as the best, long-term solution.

He added: “For a new packing line, two submersible Landia Chopper Pumps will pump potato effluent, whilst a Landia Jet Mix system will mix organic sludge (dissolved solids 3-5%) in a 60m3 tank”.

MSE Systems ensured that the initial installation proceeded with the minimal amount of disruption, in order for their customer to reopen on schedule. Despite the tight time frame, the new wastewater treatment plant was delivered by MSE Systems ahead of deadline and within budget.

www.msesystems.co.uk

www.landia.co.uk

MSE Systems bring in Landia pumps and mixers to help treat potato effluent

Following the successful installation two years ago of Landia Chopper Pumps and a Landia Aeration System, MSE Systems is set to install a further three units from Landia for one of the UK’s leading supplier of potatoes.

During an upgrade to the customer’s potato processing factory, Chesterfield-based MSE Systems found that the addition of a high-efficiency Dissolved Air Flotation (DAF) plant would improve the activated sludge process by reducing oxygen demand. To ensure that the plant could meet future needs, a new chemical addition system was introduced to remove suspended solids, free emulsified oils, grease and elevated residual phosphorus.

For odour control, an 11kW Landia AirJet system was installed to mix, aerate and control odours of screened potato effluent in a balance tank. In addition, two submersible Landia Chopper Pumps were brought in to pump screened potato effluent from a 4.5m deep pit (500m away), which included an additional 4m lift.

Andy Neal, Design Manager at MSE Systems, said: “Our challenge, which meant utilising a very small footprint between the existing plants, was to help our customer meet and maintain a stringent Environment Agency discharge consent, so that they remain fully compliant. The Landia AirJet and Chopper Pumps have proved very reliable and cost-effective, so it gave us the confidence to invest further in this equipment as the best, long-term solution.

He added: “For a new packing line, two submersible Landia Chopper Pumps will pump potato effluent, whilst a Landia Jet Mix system will mix organic sludge (dissolved solids 3-5%) in a 60m3 tank”.

MSE Systems ensured that the initial installation proceeded with the minimal amount of disruption, in order for their customer to reopen on schedule. Despite the tight time frame, the new wastewater treatment plant was delivered by MSE Systems ahead of deadline and within budget.

www.msesystems.co.uk

www.landia.co.uk

ABB to share its flow measurement expertise at forthcoming factory open day

abb march 15ABB Measurement & Analytics to hold open day at its Stonehouse factory to demonstrate its flow testing facility and expertise for industrial flow measurement applications

ABB Measurement & Analytics will be holding an open day at its Stonehouse factory on the 25th March to share its expertise on flow measurement and calibration. Free to attend, the event is open to anyone involved in the specification, operation and maintenance of flowmetering equipment and will cover a variety of areas relating to flow measurement and calibration.

New Sauer standard for safety valves

sauer-april-5They make a considerable contribution to safe operation: Safety valves have to defy high temperatures, pressure fluctuations and vibrations while reacting precisely – requirements that mass-produced valves often do not satisfy sufficiently.

NERO Launch New E-Commerce Website

nero-logoNERO Launch New E-Commerce Website
NERO's E-Commerce website has been designed to provide customers with a user-friendly experience with improved functionality and navigation throughout. The site includes NERO's entire range of stainless steel pipe fittings.
Find out More

Control Pinch Valves and their Application

Controlled Processing of Product Flows

In a fully opened position, the flow of a processing product is in direct line with the critical elastomer sleeve, which maintains a direct control over the flow of a liquid, fluid or material. The Control Pinch Valve has a form constructed of a casing, flanged or screw type ends and the unique elastomer sleeve, the controlling factor of this variety of valve. This innovative valve has a designed construction, making it able to operate without damaging cavitations for specified conditions. The opening and closing of the valve whether a screw type or flange, is either by manual means or compressed air pressure fed into the casing.

 

Manual operated Pinch Valves and Innovative Parts

Innovation in Design and Construction

 

A Manual operated Pinch Valve is an innovative type of valve, by its design and construction simplicity. However, it has established a reputation for extremely high and effective performances in applications such as slurries, liquids and suspended solids, in comparison to other valve varieties. The valve consists of three basic parts, only one of which has any direct contact with a processing product. It provides a sealing process by using an elastomer sleeve, situated inside the valve casing. The remaining integral part of the valve, are flanging located at either end of the casing.

Weir acquires South Korean Valve Company, HIM Tech

Weir News Headlines >> 
Weir strengthens global valves business with acquisition of South Korean valves business formerly operated by HIM Tech Co Ltd (“HIM Tech”). HIM Tech designs and manufactures control and choke valves for severe service power generation and oil & gas applications.

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