Failure analysis of an HCl gas cylinder valve

Journal Article · Fri Dec 01 00:00:00 EST 2000 · Engineering Failure Analysis

DOI:https://doi.org/10.1016/S1350-6307(99)00036-9· OSTI ID:763219

Holcomb, G R

The fouling failure of an anhydrous HCl gas cylinder valve was investigated after the failure led to an accidental release of HCl gas. It is surmised that water penetrated into the valve by improper purging or valving, and created a severely corrosive environment. The aluminum bronze valve body underwent general corrosion. The corrosion products, primarily nantokite (CuCl), built up within the valve and led to the fouling failure. Dezincification was observed in a leaded nickel silver component of the valve. The Monel 400 valve stem was intact. The cylinder and valve testing procedures that led to the gas release incident are also examined.

• Research Organization: Albany Research Center, Albany, OR (US)
• Sponsoring Organization: USDOE Office of Fossil Energy (FE) (US)
• OSTI ID: 763219
• Report Number(s): DOE/ARC-2000-004; TRN: AH200033%%208
• Journal Information: Engineering Failure Analysis, Vol. 7, Issue 6; Other Information: PBD: 1 Dec 2000; ISSN 1350-6307
• Publisher: Elsevier Science Ltd.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
HAZARDOUS MATERIALS SPILLS
ACCIDENTS
FAILURES
GAS CYLINDERS
FAILURE MODE ANALYSIS
HYDROCHLORIC ACID
CORROSION
VALVES
FOULING
HYDROGEN CHLORIDE
HCL
DEZINCIFICATION
VALVE FAILURES
FAILURE ANALYSIS