KCIP 한국주철관

PE 슬리브 폴리에틸렌(PE) 슬리브란?
A method that blocks direct contact between corrosive soil
and pipe by cladding 0.2mm thick polyethylene sleeve
Ductile cast iron pipe is prevalently used in a construction site
on waterworks, sewage, and gas even in U.S, Europe, Middle
East, and Japan → proved an excellent anti-corrosive effect on
corrosive soil
폴리에틸렌 슬리브의 특징
An effective and economical method on corrosive deterrence,
possible to construct at construction site → less damage or
deterioration of anti-corrosive film, can simply be restored by
adhesive tape
폴리에틸렌 슬리브
폴리에틸렌 슬리브 사용 관로 (일본)
Excellent anti-corrosive effect on highly corrosive soil
Soil Osaka Osaka Fukuoka Sapporo Yokohama
Soil Reclaimed land Reclaimed land Reclaimed land Reclaimed land Reclaimed land
Soil character Clayer soil
(seawater effect)
(seawater effect)
Clayer soil
(seawater effect)
Marine clay Marine clay
Pipe Size 400 100, 200 500 100 100
laying period (year) 20 19 29 16 14
ANSI (soil evaluation) 15.5 12.0 15.5 15.5 14.5
Inspection No corrosion No corrosion No corrosion No corrosion No corrosion
※ Japan Ductile Iron Pipe Association
부식성 토양에서의 덕타일주철관 내식성(미국)
Pipe Condition Number of Specimens Mena Deepest Pitting Rate(in./yr.) Years to Penetration
Sand Blasted
(annealing oxide layer removed)
102 0.025 10
Bare (uncoated) 22 0.0151 17
As-manufactured (Standard Shop Coating) 103 0.0151 24
Polyethylene Encased 150 0.00045 556
Comparing the pitting rates for the unprotected versus polyethylene-encased iron pipes, the results show
that polyethylene encasement is a very effective way to control corrosion on Ductile Iron pipelines in most
corrosive soils. These results have been confirmed through more than 45 years of successful usage of
polyethylene encasement on tens of millions of feet of water and wastewater lines throughout North