UK specialist pump manufacturer Flotronic Pumps Limited was founded by Lew Norris in 1981. The engineering design consultancy ‘Norris Brothers’ had been involved in the design of specialist pumps since 1952. Lew Norris’ new company pioneered the air-operated, double-diaphragm ‘One-Nut’ pump. Flotronic’s ‘One-Nut’ design allows quick pump disassembly for inspection, cleaning and maintenance – delivering a massive benefit for pump users in terms of reduced down-time, particularly as the pump can be inspected or maintained in line without disconnection of pipework. Flotronic remains the only British-owned specialist manufacturer of air-operated, double-diaphragm pumps in the UK.
Posts Tagged ‘EHEDG’
At this year’s BrauBeviale trade fair KSB is going to showcase the youngest generation of its hygienic Vitachrom single-stage close-coupled pump. It now features both the standard connection and, as an option, an 8-mm flexible tube connection for liquid supply to the mechanical seal. With its electropolished stainless steel surfaces and almost complete lack of dead volume the pump is very easy to clean by CIP/SIP. The type series is EHEDG-certified and all materials used comply with FDA and EN 1935/2004 standards. An Atex-compliant version is available.
Pure-Fuse diaphragm technology incorporates a one-piece design that eliminates product-trap areas between the outer piston and diaphragm that can harbor bacteria, a critical consideration for hygienic applications. This patented design also provides an unbroken fluid-contact surface for CIP capability and reduced contamination risks. Pure-Fuse combines food-grade plastics and elastomers with a stainless-steel core using no adhesives or nylon fabric that can contaminate process fluids in the event of a breech. In addition, by eliminating the outer piston Pure-Fuse diaphragms experience reduced abrasion, which results in longer diaphragm life.
The superior efficiency of the LKH Prime results in reduced energy consumption. This delivers low cost of owner-ship. Designed for CIP duties containing entrained air, it can also pump product, potentially reducing the capital investment when designing process systems.
Quiet in operation, the LKH Prime is engineered to meet the most stringent standards and hygienic requirements of the food, dairy, beverage, and home & personal care industries. The pump is also going to be available as an UltraPure model, meeting the needs of pharmaceutical customers.
Flotronic Pumps Limited, the UK-based specialist manufacturer of air-operated double diaphragm pumps, having already secured 3-A Sanitary Standards, Inc (3-A SSI) approval for their ‘H’ series pump, have now achieved the European Hygienic Engineering & Design Group (EHEDG) accreditation for their new ‘E’ Series pump.
The ‘E’ Series pump has been specifically designed for the Food and Beverage industry and other processes where product contamination must be avoided. The pump’s features include Flotronic’s established and unique ‘One-Nut’ pump design which allows swift diaphragm access without disconnecting process pipework. The internal surfaces of the ‘E’ Series pump can be effectively ‘cleaned in place’ or, alternatively, easy dismantling can be carried out for cleaning and inspection. Cleaning is aided by the provision of polished wetted surfaces to 0.8μm Ra maximum and an electro-polished overall finish. Cleanability is also assisted by the incorporation of a support stand whereby the pump can be inverted for full draining.
- USP Class VI,
- 1935/2004/EC and
- FDA CFR 21.177
requirements for use in a wide variety of hygienic applications. These metal AODD pump models utilize the energy-efficient Pro-Flo Air Distribution System (ADS).
The new 76 mm (3”) Full-Stroke Integral Piston Diaphragm (FSIPD) is made for use in Wilden’s Saniflo FDA pumps, as well as its Original, Advanced and Advanced FIT series of air-operated double-diaphragm (AODD) pumps. These diaphragms are well suited for hygienic applications because they are constructed of food-grade Santoprene™, and the integral piston is completely encapsulated within the TPE material, meaning there is no outer piston that can trap fluid and particles.
The result is a durable, highly cleanable diaphragm assembly that features a large integral piston and a full-stroke shaft that enables it to maintain the same stroke length as conventional Wilden diaphragms. The diaphragm’s full-stroke design increases product displacement per stroke, which translates into improved suction lift, greater flow rates and higher efficiencies than experienced when using pumps that operate with reduced stroke diaphragms.
Single-flow hygienic Twin-Screw-Pumps, type SLH from ITT Bornemann, have been successfully installed in many applications in the food-, beverage and pharmaceutical industry for many years. It is one of the main functions to pump high viscous fluids. Because of the high rotational speed range (up to 3600 rpm) it is also possible for the pump to handle low viscous products with a high flow velocity. So it is possible to use the SLH Twin-Screw-Pumps also for the CIP-Process.
To reach the high criteria of hygienic design ITT Bornemann designs the pump inside and outside in best way without loss of functionality. As a result the pump is EHEDG EL class 1 certified and also 3-A registered. Now the SLH-4G Twin-Screw-Pump reaches the next level: EHEDG EL Aseptic Certificate. The certificate underlines the hygienic design of SLH-4G Twin-Screw-Pump and confirms the possibility to operate in aseptic applications.
Wilden has received Patent No. 8,496,451 from the United States Patent and Trademark Office for its Full-Stroke Integral Piston Diaphragm (FSIPD). “The FSIPD provides the clean-ability that customers need and adds the flow rate and suction-lift performance they want. In addition, customers will be happy to know that a Wilden FSIPD is about half the cost of a PTFE IPD,” says Robert Jack, Development Engineer, Wilden Pump and Engineering.
Constructed of Wil-Flex™ (Santoprene®), FSIPDs do not incorporate an outer metallic plate that requires the pump to be cleaned manually. Instead, the metallic plate is integrated into the material itself, resulting in a diaphragm design that uses the same shaft and inner piston as Wilden’s rubber and TPE diaphragms to maximize performance. Wil-Flex FSIPDs are easy to install and do not require inverting of the diaphragm for installation. Wilden FSIPDs do not use any adhesives that could get exposed to the pumping media.
The new Tapflo pump series is certified by EHEDG, the European Hygienic Engineering Design Group. The aseptic pump series will come in three sizes. The first to be launched is the smallest, with a maximum flow of 425 litres per minute.