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System-One live mains entry system meets stringent GAS-FREE standards, and handles any maintenance operation requiring up to a 2-1/2"
tapping.
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- 3/4" to 2-1/2" live entry in an extremely compact lightweight package
- A realistic alternative to working "open hole"
- Interchangeable components cover multiple applications
- Operates on cast iron and steel and under development for PE
- Handles operations ranging from camera entry to under pressure street tee replacement and live internal bell joint repair
- No throttling procedures required
- No expensive control fittings to purchase or leak
- Total safety with sensible economics.
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Exclusive Distribution Pressure Design
Driven by the need to protect the environment and the ever present requirement to improve safety standards in the industry,
ALH offers an effective new technology already adopted by many US Gas Utilities. System-One is designed for the relatively
low pressures used in gas distribution. The equipment is compact and light, the procedures simple and the economics viable.
Gas-Free operations at both Low and Medium Pressure are now a reality, without exposure to the risks associated with open hole work.
An Escape from Escaping Gas
Today, much low and some medium pressure distribution maintenance is still carried out while gas escapes from open holes
cut in the pipe. This practice contradicts worldwide trends where increasing the levels of safety and environmental
concerns have become important issues. Acceptance of the status quo is the result of deep-set traditions, created
before there was a viable alternative.
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