11.11.2014 Views

C2572 02 Apr-May 06 AW - LP Gas Magazine

C2572 02 Apr-May 06 AW - LP Gas Magazine

C2572 02 Apr-May 06 AW - LP Gas Magazine

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

AUTOGAS CONVERSION EQUIPMENT<br />

Toroidal lpg tanks in the computer controlled paintshop.<br />

SAFETY IS PARAMOUNT AT WVM<br />

Dutch company, Witte van Moort, has been making lpg tanks since 1974. It now manufactures<br />

54 different types of lpg tank and has capacity for an annual production of 100,000 units.<br />

HKL <strong>Gas</strong>power Ltd has been<br />

purchasing and distributing WVM<br />

pressure vessels in the UK for over<br />

20 years.<br />

“The main reason we have opted<br />

to stock these tanks for so long is<br />

down to a number of reasons,<br />

quality being the main one,” said<br />

Stuart Bradley, general manager at<br />

HKL. “Generally, in the UK, WVM is<br />

still regarded as the premium tank<br />

brand, despite great competition<br />

from some other manufacturers with<br />

similar products. The tanks are also<br />

four-hole orientated, offering<br />

maximum reliability and safety, and<br />

giving peace of mind to us as a<br />

company to confidently sell the<br />

product.<br />

“There are two main marketplaces<br />

in which we sell WVM tanks –<br />

predominantly, the thriving UK lpg<br />

automotive conversion sector, but<br />

also to a number of forklift truck<br />

dealers and manufacturers.<br />

“We are happy to continue<br />

working with WVM for the<br />

foreseeable future and stock a full<br />

and comprehensive range of its<br />

product line here in Birmingham.”<br />

In the 1950s, Witte van Moort<br />

began manufacturing children’s<br />

bicycles, and has since progressed<br />

to mopeds, components for central<br />

heating systems and, in 1974, in<br />

cooperation with a Shell subsidiary;<br />

it began to design lpg tanks.<br />

Initially, it made six types of tanks,<br />

and this has now increased to 54<br />

varieties for different models of cars<br />

and forklift trucks, made in the lpg<br />

department of Witte van Moort’s<br />

20,000m2 factory in Vriezenveen,<br />

Holland. The tanks are each<br />

hydraulically tested to 30-bar.<br />

“The Dutch prefer tanks equipped<br />

with four separate accessories – a<br />

mechanical 80% filling valve, a<br />

solenoid takeoff valve, a gauge with<br />

an electronic sensor and a security<br />

spring valve set at 27 bar - primarily<br />

because of their reliability compared<br />

to multivales,” said Henk Borger,<br />

manager of the lpg department at<br />

Witte van Moort.<br />

“Multivalves often have a smaller<br />

capacity than security spring valves<br />

and that’s why, during a fire, the<br />

pressure in the tank rises too much.<br />

Also, filling the tank takes too much<br />

time and the filling capacity is too<br />

low. The electronic filling valve has a<br />

PTC that measure the level of the<br />

liquid and the solenoid valve shuts off<br />

when the liquid level reaches 80%.”<br />

Production of lpg tanks is a<br />

serious business, says Henk. To<br />

homologate the lpg tank, a cycle test<br />

is required to reach 12,000 times a<br />

pressure between 0 and 30-bar.<br />

Then a burst test much reach a<br />

minimum of 67-bar. Witte van Moort<br />

tanks can withstand 80 to 120-bar in<br />

a burst test, depending the shape of<br />

the tank, says the company.<br />

During production, the tanks are<br />

also subjected to mechanical and x-<br />

ray tests. After mounting the valves,<br />

the tanks are finally tested with<br />

compressed air to 11-bar, to be sure<br />

that all the tanks are safe.<br />

“Production quality is Witte van<br />

Moort’s number one priority,” said<br />

Henk. “That’s why a lot of OEMs are<br />

our customers, including Renault,<br />

Volvo, Vauxhall, Volkswagen,<br />

Subaru, and so on.<br />

“Volkswagen AG has performed<br />

quality audits in Poland and Italy to<br />

compare Witte van Moort to other<br />

companies. They were happy with the<br />

results. Witte van Moort was the only<br />

company with enough points to deliver<br />

all brands in the Volkswagen Group.<br />

“We make sure that our assurance<br />

of quality is also available to the<br />

aftermarket.”<br />

The production of lpg tanks needs<br />

a lot of investment, says Henk<br />

Borger. Equipment, such as deep<br />

draw presses, fully robotised<br />

welding machines and hydraulic test<br />

machines, are needed.<br />

“In my opinion, Europe needs one<br />

organisation that controls the national<br />

notified bodies so the customer is<br />

sure that lpg tanks produced in<br />

Europe and lpg tanks that are<br />

imported into Europe all exactly fulfil<br />

the demands of United Nations<br />

Regulation 67.01,” said Henk.<br />

“The Dutch lpg tank market,<br />

including forklift trucks, is about<br />

25,000 tanks per year. We find that<br />

UK customers tend to give less<br />

priority to quality than those from<br />

Holland and other countries.”<br />

Contact Witte van Moort on<br />

+31 546 562444<br />

www.wvm.nl<br />

Ford Transit lpg twin tanks.<br />

PED homologated forklift lpg tanks.<br />

18<br />

<strong>LP</strong> GAS MAGAZINE APRIL/MAY 20<strong>06</strong>

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!