Coupling & Repair
Blackhawk Pressure Control Fittings
Dresser Coupling & Repair LS-2 fittings are available for steel piping systems in threaded sizes from1-1/4” 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 B31.4 (liquid pipelines)/B31.8 (gas pipelines).
The Dresser LS-2 line of fittings is designed for use in Class 1, 2, 3 & 4 locations at the maximum allowable operating pressures of 285 PSI for ANSI Class 150 fittings and 740 PSI for ANSI Class 300 split-sleeve fittings. ANSI Class 300 spherical fittings rated for Class 1, 2, 3, and 4 locations are also available upon request.
Dresser pressure control and split sleeve fittings are compatible with Industry standard tapping and plugging equipment. All fittings and equipment can be designed and certified 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 and on request NACE MR0175 compliance and certification.
All fittings are welded in accordance with ASME section IX or API 1104 welding procedures. Dresser employs quality assurance and quality control procedures, as well as in-process inspection and documentation.
Line Stop Fittings
Our full-encirclement split sleeve line stop fittings are available in ANSI 150, 300, and 600 from 4” through 24” sizes. Fittings can be manufactured with side outlet, spherical configurations, or with a standard weld neck flange for hot tapping applications.
LS-2 Distribution Fittings
Dresser LS-2 fittings are available for steel piping systems in threaded sizes from 1- ¼” through 3” and flange fittings from 4” through 12”. They are fully compatible with industry standard HTLS tools and equipment.