PE Trenchless Pipe Rehabilitation For Inside Pressure Water Pipes

PE/PE Pipe-in Liner for Renchless Pipe Rehabilitation for Water Pipes with inside pressure

Asoe Hose Manufacturing, Inc. has developed different types of trenchless pipe rehabilitation solutions to pressure pipes. Pipe-in Liner is the easiest one of them. Pipe-in Liner is Fabric Reinforced Flexible Plastic Pipes (FRFPP). The basic installation procedure is “firstly to fold Pipe-in Liner into a U-shape, secondly to pull the liner into the host pipes and thirdly to expand the liner in the host pipes”. The Pipe-in liner will work as a leakage-free liner inside the host pipes. Pipe-in Liners are classified into four different series: Pipe-in Liner W Series, Pipe-in Liner O Series, Pipe-in Liner G series, and Pipe-in Liner H series. Pipe-in Liner W series are used to rehabilitate water main pipes and other types of water pressure pipes at normal temperature. Pipe-in Liner O series are used to rehabilitate oil pipes onshore or offshore. Pipe-in Liner G series are used to rehabilitate gas pipes onshore or offshore. Pipe-in liner H series are used to rehabilitate pipes in municipal heat systems. Pipe-in liner H series can resist a temperature no more than 95° C (203° F). Asoe is the first company in the world to develop this type of solution to rehabilitate hot water pipes. Besides liners, Asoe has also supplied complete solutions including couplings which connect Pipe-in Liner with host pipes, equipment to install couplings, and technical consulting service, etc. Pipe-in Liner solution is non-structural pipe rehabilitation. There is no connection between the host pipe and the liner so that the liner works independently from the host pipe. The liner is a little bit rigid and it will maintain its round shape inside the host pipes even without inside pressure or with little pressure from outside. Pipe-in Liner is flexible and can easily be pulled from 45 degrees bends or of 90 degrees bend with a 5D radius. Only coarse pipe cleaning is required before the installation when Pipe-in Liner trenchless pipe rehabilitation solutions are applied.

Nominal ID of host pipes: 50mm (2 inches)— 800mm (32
inches)
Maximum length of each installation: up to 4000m (13,000ft)
Maximum operating pressure:1.0 - 4.0 Mpa (150psi-600psi)
Maximum bursting pressure:3.0-12.0 Mpa (450psi-1800psi)
Installation mode:Pull in U-shape Liners
Raw materials:high tenacity fabric reinforcement layer,
abrasion-resistant PE cover, PE tube (NSF61 certified,
Potable Water Safety approved by NHFPC of China)
Abrasion resistance (DIN53516):10.5 mm
Temperature of media:-40°C to 75°C (-40°F to 167°F)
Wall thickness:6mm-8mm (0.236-0.315 inch)
Trenchless solution type:Non-structural pipe rehabilitation
Pulling speed: up to 400m/h
Service life duration: 50 years

Pipe-in Liners are fabric reinforced flexible plastic pipes (FRFPP) used for
trenchlessly rehabilitating four different types of pressure pipes:
Pipe-in Liner W Series: rehabilitating water main pipes and other water pipes