Blackhawk manufactures hot tapping and line stop fittings and accessories for
the natural gas, oil and chemical industries and has earned a reputation as a
premier supplier of pressure control fittings for the global energy markets.
Dresser Piping Specialties of Bradford, PA, a division of Dresser, Inc. Natural Gas
Solutions, acquired Blackhawk in 2006. The addition of the Blackhawk product
line enhances Dresser’s ability to provide an extensive line of quality products to
their energy market customers worldwide.
BLACKHAWK LS-2 Pressure Control Fittings are available for steel piping
systems in threaded sizes from 1/4” through 3” and flange fittings from 4”
through 12”. LS-2 fittings are designed, tested and manufactured to meet and/or
exceed the code area replacement requirements for pressure containment per
ASME/ANSI B31.8 (Gas Pipelines).
The LS-2 fittings are certified for use in Class 1, 2, 3 & 4 locations at the
Maximum Allowable Operating Pressures of 285 PSI for ANSI Class 150 Series
fittings and 740 PSI for ANSI Class 300 Series fittings.
BLACKHAWK Full-encirclement LineStop fittings are available in ANSI 150,
300, 600 and 900 Series from 4” through 48” sizes. Split sleeve fittings are also
manufactured with side outlet, spherical configurations and with a plain raised
face weld neck flange for hot tapping. LineStop Flanges and Completion Plugs
are also available.
LS-2 Pressure Control and LineStop Fittings are compatible with specific
tapping and plugging equipment and are designed to carry the extra loads
imposed during hot tapping and line stopping operations. All fittings can be
designed to ASME/ANSI B31.8 (Gas Pipelines); B31.4 (Liquid Pipelines); B31.3
(Chemical Plants & Refineries); B31.1 (Power Plants); DOT 192 Federal Regulation
for gas pipelines; DOT 195 Federal Regulation for liquid pipelines and most
international codes. All fittings are marked in accordance with ASME Section VIII
& IX (and API 1104) Welding Procedure specifications.
BLACKHAWK employs Quality Assurance and Quality Control Procedures, |
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