High pressure pipe sleeve for pressure testing of joint seals

Details High pressure pipe sleeve for pressure testing of joint seals High pressure pipe sleeve for pressure testing of joint seals

1992-07-13

1993-10-12

Williams, Hezron E.

Measuring and testing

With fluid pressure

Leakage

73 40, G01M 328

Patent

active

052514722

ABSTRACT:
An apparatus for pressure testing a penetration seal between a process pipe and surrounding penetration sleeve of larger diameter, where the process pipe passes through the wall of a containment structure. A wrap-around elastomeric boot connects the penetration sleeve with the process pipe and defines a chamber communicating with the penetration seal to be tested. Inner and outer collar sets, each formed of an opposed pair of semi-cylindrical collar segments, are mounted over the process pipe and penetration sleeve and secured together in surrounding relation to the elastomeric boot. Wrap-around, pneumatically inflatable clamping rings are interposed between the respective collar sets and the ends of the elastomeric boot, to tightly and sealingly clamp the boot to the process pipe and penetration sleeve. Pressurizing valves are provided on the clamping rings and on the elastomeric boot to enable periodic testing of the penetration seal by first pressurizing the clamping rings and thereafter pressurizing the sealed chamber formed by the elastomeric boot.

REFERENCES:
patent: 2817230 (1957-12-01), McCully
patent: 3731525 (1973-05-01), Suter
patent: 4194389 (1980-03-01), Laging
patent: 4624131 (1986-11-01), Holm et al.
patent: 4727749 (1988-03-01), Miller et al.
1991 Catalog of The Presray Corporation "Pneuma-Seal", p. 12.

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