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Hose Safety During High-pressure Water-jet Cutting.

Authors
Taylor-CD; Thompson-JL; Handewith-HJ; Thimons-ED
Source
MISSING :9 pages
Link
NIOSHTIC No.
10005615
Abstract
Flexible hoses with rated working pressures up to 40,000 psi are used when high-pressure water jets are employed to cut rock or improve the performance of mining machines. Hose failures at such high pressures can result in serious injuries to workers. The Bureau of Mines used fatigue and burst tests to investigate the failure modes of high-pressure hoses at their rated working and burst pressures. Fatigue failure, at rated working pressures, occurred when the inner liner of the high-pressure hose broke, allowing water to seep through the wire wrapping, although the reinforcement wires did not break. At the burst pressure, all hoses failed catastrophically when the reinforcement wires broke. Low- pressure hoses placed over the high-pressure hoses for safety failed to contain water released by catastrophic failure.
Publication Date
19870101
Document Type
IH; Information Circular;
Fiscal Year
1987
NTIS Accession No.
NTIS Price
Identifying No.
IC 9126
NIOSH Division
PRC;
Source Name
MISSING
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