PTFE/aramid packing in boiler feedwater pump saves over $2000/year
This article describes a polytetrafluoroethylene/aramid packing for boiler feedwater pumps which has saved DuPont Company's Savannah River Plant over $2000/yr. Although the packing is more expensive than the material previously used, the one year minimal service life, compared to less than 8 weeks for the packing previously used, has already saved more than $2000, and the packing is still in service. The yellow packing is made of a chemical resistant aromatic polyamide (aramid) fiber that has high tensile strength and good thermal stability. A low friction coating of chemically inert Teflon PTFE and a non-silicone, temperature stable lubricating oil, are applied to the individual fibers by a patented process before they are interbraided. The dimensionally stable packing can be used with fluids and slurries over a 1-13 pH range and at temperatures from -360 to 570/sup 0/F.
- Research Organization:
- Savannah River Plant, DuPont Co., Aiken, SC
- OSTI ID:
- 6135153
- Journal Information:
- Chem. Process. (Chicago); (United States), Journal Name: Chem. Process. (Chicago); (United States) Vol. 46:1; ISSN CHPCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
320302* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Materials
ARAMIDS
BOILERS
FLUORINATED ALIPHATIC HYDROCARBONS
HALOGENATED ALIPHATIC HYDROCARBONS
MATERIALS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
PACKINGS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYETHYLENES
POLYMERS
POLYOLEFINS
POLYTETRAFLUOROETHYLENE
PUMPS
SYNTHETIC MATERIALS