Tanks & storage Niplast tanks replace bulk storage units
SIMPSON THOMSON Filtration
(STF), which
manufactures Niplast Storage Tanks, has replaced two bulk storage tanks in situ for NGF Europe 25 years after the originals were first installed in the company’s St. Helens site. Niplast bulk storage tanks were originally installed at the site in 1988 and the replacement tanks will continue to store solutions for the company.
However, the contract brought
new challenges. The original tanks were
installed as part of the site construction, being lifted into place before the plant roof was assembled. Twenty-five years on, STF was required to undertake the demolition of the redundant tanks and complete the construction of the new tanks in situ, within the plant.
STF also undertook the licensed disposal and 100% recycling of the original polypropylene tanks.
The two 30,000l Niplast tanks have been designed and manufactured to British and
European Standard BS EN 12573 Welded Static Non- pressurised Thermoplastic Tanks, which was adopted by the BSI in 2000. Manufactured
from black
UV stabilised polypropylene, each tank featured a 15deg angled conical lid, ribbed to accommodate personnel loads, plus internal sloping bases running from 500mm height to 200mm at the outlet to assist with drainage and clean down.
Overall the tanks were 3m diameter by 5.5m height,
with a range of tank furniture including access flanged
connections indicators overflow.
The key tank components were manufactured at STF’s Stockport factory, primarily the tank roofs, base sections and wall cylinders. They were then transported and offloaded on guided trolleys through
NGF’s production
areas, across a distance of 300m to the storage section.
Kirk adds AQUA TANK pre-cast concrete tank to range
KIRK ENVIRONMENTAL,
part of the Kirk Group, has introduced a new tank system, the AQUA•TANK Pre-Cast Concrete Tank, to its existing product range for the UK water and wastewater treatment industry in the UK. AQUA•TANK provides a safe, cost-effective method of containment with numerous applications within the water, wastewater and industrial sectors. Guaranteed factory controlled quality combined with
a robust structure
and tried and tested design principals, offer life expectancy previously only
achieved with installations.
Following a period of extensive product development, AQUA•TANK is one of the first to locate the post tensioning tendons within the pre-cast panel and is the first system to
incorporate the no
maintenance EPDM rubber jointing gasket.
Benefits of choosing a pre- cast tank system include off- site manufacture and fast installation times possible in any weather conditions, rugged construction, optimum storage capabilities
cast in-situ
ranging from 50m³ to 12,500m³, minimum maintenance and health and safety standardised construction methods. Andrew Peace, managing director at Kirk Group, is optimistic about the company’s ever growing product range and its latest addition. He said: “The introduction of this product allows Kirk to fully service all our clients’ storage tank needs and fits very well within our current range of products and services. “Our enhanced product range will raise the bar on the level of quality, service
and performance in the tank industry and the working partnerships and framework agreements we currently have with our clients will benefit greatly from a unique package that will significantly enhance any project.”
Kirk will incorporate the AQUA•TANK product into its overall packaged solution along with foundations, access steelwork, GRP covers, pipework and BIODOME gas holders, all of which are constructed onsite by Kirk’s dedicated team to provide a finished installation of the highest possible quality.
Forbes opens new production facility
FORBES TECHNOLOGIES, a leading producers of custom designed and built tanks in
plastics and composite
materials with capacities up to 200,000l, has opened its new £1.7M production
facility at Kelso to meet an increased demand for its products.
The facility will enable the automated production of tanks and towers up to 4m diameter and up to 100,000l
in thermoplastic. Forbes has already received an order of six of the new tanks from world-leading electronics firm NXP Semiconductors in Manchester.
The new facility will boost
production and ensure that the company can respond to the increased demand for their products while continuing to provide secure, highly skilled jobs for local people.
manways, for
incoming latex, outlets, connections content
for ultrasonic and
STF’s fabricators connected the components on-site using extrusion welding, a technology which is transferred from factory to site environment ensuring successful completion of the project. Similarly, it was possible for STF to undertake its water testing and weld spark testing on site as easily as it can in the manufacturing plant.
Following fabrication of the tank components in STF’s factory, on site construction, from delivery to final testing
by qualified Niplast tank fabricators took one week, thereby
causing minimal disruption.
STF managing director Adrian Greenwood said: “The 25 year’s service provided by the original Niplast tanks demonstrates the excellent service life achieved by thermoplastic tanks constructed to BS EN 12573. The provision of the new tanks shows the flexibility of this design standard and the manufacturing and testing techniques.”
Level switch certified for tanks
EMERSON PROCESS Management’s
2120, 2130 and 2160 vibrating
fork liquid
Rosemount level
switches have been tested for overfill protection and certified by the German DiBt WHG approval authority. The approval means that the Rosemount level switches are included in the list of approved products published by DiBt, certified under safety devices for tanks and piping related to water pollution control. The tests for
overfill
protection were successfully completed by the 3rd party tester TÜV Nord (Technischer Überwachungs-Verein),
and
certified by DiBt (Deutsches Institut für Bautechnik), an authority
of the Länder Governments for
German a
uniform fulfilment of technical tasks in the field of public law. Proven instrument accuracy and reliability are key factors in
the overfill protection
approval process and the Rosemount level devices were required to pass the comprehensive test of 5000 overfill situations for each switch,
over the temperature range.
Overfill protection devices can shut off or restrict product flow or alert the operator with an alarm when a tank is close
whole
to being full. The Rosemount 2120, 2130 and 2160 Series are designed for high and low alarms, overfill protection, pump control, including wide pressure and temperature requirements, and hygienic applications.
Rosemount 2100 Series vibrating fork level switches are suitable for a wide range of
liquid are virtually
applications. They unaffected
turbulence, foam, vibration, solids liquid
content, properties
coating and
by or
offer
a complete range of process connections, with a wide choice of housing and wetted part materials. Built-in instrument health/self-checking diagnostics, plus hazardous area options make them the ideal choice for a variety of challenging applications in many industries. The Rosemount 2160 wireless enabled vibrating fork liquid level switch combines Emerson’s wireless expertise and vibrating short fork technology.
It has all the features of the wired level switches but without the complication and cost of wiring. This makes it ideal for level monitoring and control in locations previously inaccessible or too costly for wired devices.
The Rosemount level devices
The facility will enable the automated production of tanks and towers up to 4m diameter and up to 100,000l in thermoplastic 16 | WET News | December 2013
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