Ein Spiel-Wechsler für Stahl Gasnetzersatz und Anschlüsse

Nach der erfolgreichen Netzwerk Innovation Allowance (NIA) funded project to develop a tool for the safe, effective window cutting of ductile iron mains, Wales & West Utilities has worked with Steve Vick International (ALL) to introduce a cutter which allows the removal of a window from a steel main.
Due to the lack of tooling available, Wales & West Utilities and all other gas distribution networks have not been able to plan the replacement of steel networks other than by inefficient methods such as ‘open cut’. Often, replacement jobs are rerouted to avoid the replacement of steel sections which results in additional work incurring extra costs.

Live-Netz Eingefügt

As Wales & West Utilities replaces around 90% of its network using the Live Mains Insertion technique, the company identified a need to develop a tool to effectively cut a window in steel mains and be the first GDN to plan a replacement programme for its 200km steel network.

When it comes to transferring services to a newly inserted PE pipe, it is necessary to cut out the metal main. Cast iron can be simply broken out; Wales & West Utilities and SVI successfully developed the Rapid Window Cutter for Ductile Iron. Now the two companies have produced, with NIA funding, the hand-held Rapid Window Cutter for Steel which will transform the way the industry plans replacement programmes for steel networks.

The design of the tool builds on the successful engineering of the Rapid Window Cutter for Ductile Iron with modifications to the air powered motor and blade system. Der Cutter macht sowohl halb Umfangs- und Längsschnitte, letztere ein geringes Gewicht unter Verwendung von, leicht Führungsrahmen zu passen, die freie lineare Bewegung ermöglicht.

The frame incorporates a small winch at one end of the guide rail, and using a turn handle the winch cable is used to pull the cutter along the track. By adding this simple mechanism, the operator is in complete control of the machine without having to apply any force.

The light weight frame is available in various lengths, and comes complete with 4”, 6” and 8” profiles.

Ausgestattet mit dem Führungsrahmen, die SVI Fenster Cutter eingerichtet ist, einen Längsschnitt auf einem Stahl zu machen.


By developing a window cutter for steel mains, all networks can efficiently start to replace this material and avoid high costs associated with unplanned works, reducing costs for the end customer.

Der Rapid-Fenster Cutter für Stahl ist geeignet für Tier 1 Netz mit einer maximalen Schnitttiefe von 13 mm und wird mit Tiefensteuerscheiben, die es erlauben, eingesetzt Netz sicher zu schneiden, ohne das PE zu beschädigen. Der Motor ist Luft angetrieben und ist von einem typischen Standort Kompressor angetrieben. Die Maschine ist schnell aufgebaut und einfach von einer Person bedient.

New Connections

Where there is a need for a new gas connection on previously inserted mains, the Rapid Window Cutter is able to safely cut a typical ‘top tee’ size window in less than 30 Minuten; this is dramatically faster compared with existing tooling.

Lucy Mason, Wales & West Utilities Innovation Manager, sagte,:

“After the success of our Ductile Iron Mains Cutter, working alongside SVI to develop an equivalent for steel was a natural step. Our use of Live Mains Insertion is driven by what our customers want: us to work efficiently, safely and quickly, with as little disruption to them as possible. The Rapid Window Cutter for Steel helps us deliver this.
The Network Innovation Allowance (NIA) is an Ofgem incentive for funding smaller innovation Projects that can deliver benefits to customers.

Die Stahlschneider sind so konzipiert, Fenster auf Stahlnetz auszuschneiden der Installation einer Service-Spitze T, wo das Host-Haupt mit PE eingesetzt ist bereits zu ermöglichen. Das Fenster wird entweder am Ende mit zwei halbumlaufende Schnitte ausgeschnitten und zwei Längsschnitte einen Führungsrahmen unter Verwendung von

Steel Pipe Cutting Made Fast and Easy

As part of the Rapid cutter range, SVI has also designed a circumferential cutter for steel mains.
With these two new products – The Rapid Window Cutter and the Rapid Rotary Cutter – SVI believes that it offers utilities faster, safer and more efficient cutting of steel mains.

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