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Title: Plastic pipe insertion

Abstract

In March 1987 KPL changed all that when the utility inserted 1,000 ft of 16-in. SDR 15.5 Phillips Driscopipe 8000 pipe with a wall thickness of 1.032-in., into an abandoned 24-in. cast-iron line in downtown Kansas City. This is believed to be the largest diameter insert removal job ever done for gas distribution in the U.S. For KPL it was a natural progression from the smaller sizes used earlier. The procedure is the same, and the operation was quick and comparatively simple. Lower construction costs were the bottom line because with insert renewal there is no need to cut up the streets, a major expense in any urban pipeline work. There are other significant costs savings as well because the insert renewal construction process is faster than other techniques.

Authors:
Publication Date:
Research Org.:
District Superintendent, KPL Gas Service, Kansas City, MO
OSTI Identifier:
6441206
Resource Type:
Journal Article
Resource Relation:
Journal Name: Pipeline Gas J.; (United States); Journal Volume: 214:5
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS; 42 ENGINEERING; NATURAL GAS; TRANSPORT; NATURAL GAS DISTRIBUTION SYSTEMS; PIPELINES; LINERS; MATERIALS; CAPITALIZED COST; CAST IRON; CONSTRUCTION; GAS UTILITIES; INSTALLATION; MISSOURI; PIPE FITTINGS; PLASTICS; URBAN AREAS; ALLOYS; CARBIDES; CARBON COMPOUNDS; COST; ENERGY SOURCES; ENERGY SYSTEMS; FEDERAL REGION VII; FLUIDS; FOSSIL FUELS; FUEL GAS; FUELS; GAS FUELS; GASES; IRON ALLOYS; IRON BASE ALLOYS; IRON CARBIDES; IRON COMPOUNDS; NORTH AMERICA; PETROCHEMICALS; PETROLEUM PRODUCTS; PUBLIC UTILITIES; SYNTHETIC MATERIALS; TRANSITION ELEMENT COMPOUNDS; USA 032000* -- Natural Gas-- Transport, Handling, & Storage; 420205 -- Engineering-- Transport & Storage Facilities-- (1980-)

Citation Formats

Diskin, J. Plastic pipe insertion. United States: N. p., 1987. Web.
Diskin, J. Plastic pipe insertion. United States.
Diskin, J. 1987. "Plastic pipe insertion". United States. doi:.
@article{osti_6441206,
title = {Plastic pipe insertion},
author = {Diskin, J.},
abstractNote = {In March 1987 KPL changed all that when the utility inserted 1,000 ft of 16-in. SDR 15.5 Phillips Driscopipe 8000 pipe with a wall thickness of 1.032-in., into an abandoned 24-in. cast-iron line in downtown Kansas City. This is believed to be the largest diameter insert removal job ever done for gas distribution in the U.S. For KPL it was a natural progression from the smaller sizes used earlier. The procedure is the same, and the operation was quick and comparatively simple. Lower construction costs were the bottom line because with insert renewal there is no need to cut up the streets, a major expense in any urban pipeline work. There are other significant costs savings as well because the insert renewal construction process is faster than other techniques.},
doi = {},
journal = {Pipeline Gas J.; (United States)},
number = ,
volume = 214:5,
place = {United States},
year = 1987,
month = 5
}
  • In searching for a faster, more economical means of replacing old cast-iron natural gas mains, South Carolina Electric and Gas Co. found the recently perfected method of live insertion of plastic pipe into larger mains to have several advantages over either parallel main replacement or dead insertion. These advantages include (1) substantial cost savings due to reduced man-hours. (2) lower cost/ft of replacement main, (3) shorter pavement excavations and repairs, (4) reduced materials requirements, (5) shortened customer outage times, and (6) interruption of work at any stage due to inclement weather or line obstruction. The method is intended for usemore » on low-pressure systems with 2-in.-diameter or larger mains.« less
  • British Gas Engineering Research Station considers the application of polyethylene pipe as an alternative to direct burial replacement in terms of material selection and availability, system design and planning, jointing and installation procedures, and associated economic factors. Sufficient evidence exists to demonstrate the technical and economic feasibility of insertion replacement of mains using PE pipe. Developments in the field also suggest that replacement schemes involving service reconnection may be viable in economic terms. Manufacturers of pipe in the United Kingdom, aware that the industry's dependency on imported pipe can substantially influence the economics of insertion, are taking steps to providemore » British-produced pipe to meet the gas industry's requirements.« less
  • Excessive maintenance problems arising after Wisconsin Gas Co. introduced natural gas into its primarily cast-iron distribution system prompted an economic evaluation that resulted in a long-range main rehabilitation program based on network analyses of pipe condition and the economics of repair vs. replacement. Advocating the widespread use of plastic main inserts and polyethylene pipe, analysts developed a simplified cost-estimating system to establish guidelines for future installations and a baseline for measuring completed installations. A review of material and installation costs for 1965-81 comparing 2-in. plastic inserts to 2-in. steel pipe in both paved and nonpaved areas (including direct-burial plastic installations)more » indicated 20% cost savings by using plastic inserts. The insertion technique has proven successful primarily because of favorable economics, reduced excavation, minimum inconvenience to area residents, and brief downtime. Crews can generally install mains and renew services in any typical block in 3-5 working days from initial excavation to final surface restoration.« less
  • Northern Indiana Public Service Co., using the newly developed patent-pending C.H. Rohrer gas-main-replacement method, has successfully inserted 2-in-. plastic pipe in a live cast-iron gas main and maintained service to the customer during the insertion. The method is considerably less expensive than installing a new main in the street ($5/ft less), minimizes public disturbance, and saves the time of having to dig up the service connections twice. Step-by-step instructions are presented for the plastic-pipe replacement method and the procedure for transferring services to the new plastic main. The key to the method lies in maintaining pressure to the main tomore » be replaced by installing a bypass, then isolating the section by removing a pup-joint.« less