Already certified by the German Institute DVGW, the Venus Series has been further improved upon, and is certified to the EN 331 European norm covering gas ball valves. The Venus series offers a high working reliability at low and very low pressures, which are typical in gas installations.
This article was originally published on Engineeringtalk on 23 August 2001 at 8.00am (UK)
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The NEPS1900's choice of three selectable pressure cycles ensures that the dry gas influences all the test space volume
Each valve is equipped with wrapping seats to ensure long and maintenance free life cycles.
The Venus series are also fitted with blow-out proof stems and offer perfect air-bubble sealing.
The patented PTFE conical seals that distinguish Effebi ball valves are, of course, included.
The Venus gas ball valve is available with different operating devices, including aluminium lever and T-handle, square and sealing brass cap and underground adaptor.
An anti-friction ring forms the first automatic sealing at high pressure.
The second sealing, for low pressure, consists of two cone shaped seals, made with Teflon-Teflon sliding surfaces, ensuring that it does not wear.
All of the valves in the Venus series are tested at 25 bar pressure, for a period exceeding 48 hours.
Effebi gas ball valves are available in the UK through specialist distributors. casting,wind generators,bending machines,hisuppliers,casting,auto bearing,water filter,ball valves
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