Innovations in penstock lining

Journal Article · Sat May 01 04:00:00 EDT 1993 · Hydro Review; (United States)

OSTI ID:6319826

Stutsman, R D ^[1]

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1. Pacific Gas and Electric Co., San Francisco, CA (United States)

Through laboratory and field testing, Pacific Gas and Electric Company (PG E) has determined that 100 percent urethane used as a penstock llining offers several advantages over conventional ining materials. PG E plans to reline eight steel penstocks stretching 14,000 linear feet with urethane in the next three years. The material resists abrasion and corrosion and prevents leakage. Holes can be repaired without performing weld repairs. Urethane can be applied quickly, and the penstocks can be returned to service within 24 hours. However, one disadvantage is that urethane is more complicated to apply than conventional lining materials. Results from PG E's tests can help hydro plant owners and operators weigh the advantages and disadvantages of using urethane as a penstock lining.

• OSTI ID: 6319826
• Journal Information: Hydro Review; (United States), Journal Name: Hydro Review; (United States) Vol. 12:3; ISSN HYREE8; ISSN 0884-0385
• Country of Publication: United States
• Language: English

Related Subjects

13 HYDRO ENERGY
130700* -- Hydro Energy-- Power-Conversion Systems
COATINGS
CORROSION INHIBITORS
DEPOSITION
HYDROELECTRIC POWER PLANTS
LINING PROCESSES
MATERIALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PENSTOCKS
PETROCHEMICALS
PETROLEUM PRODUCTS
PIPES
PLASTICS
POLYAMIDES
POLYMERS
POLYURETHANES
POWER PLANTS
PROTECTIVE COATINGS
SPRAYED COATINGS
SURFACE COATING
SYNTHETIC MATERIALS