Dual Valves Australasia announces the availability of Hydromine U-Cone pipe
couplings designed specifically for high pressure mining pipe systems.
Offering mine engineers a simple and economical alternative to
traditional flanges for use on high pressure pipe systems, Hydromine U-Cone pipe
couplings allow faster assembly and stripping of pipelines than conventional
Pipes are joined simply by bringing the ends of the pipe with welded
hubs together after inserting the seal, fitting the clamp set over the
adjoining hubs and tightening the clamp bolts. The external tapers on the hubs
provide alignment while the clamp set pulls the hubs together, forming a simple
but effective seal comparable to similar rated conventional flange systems.
Mining engineers can save time with the number of bolts to be tightened
on U-Cone pipe couplings far less than the bolts on a standard comparable
flange system. For instance, a U-Cone DN100 250 Bar (25Mpa) rated coupling uses
two bolts whereas a similar rated flange (ANSI/ASME B16.5 Class 1500#) would
use eight bolts.
Since hub diameters are smaller than flange diameters, the more compact
footprint occupied by pipes with welded hubs lowers storage and transportation
Hubs can be offered full bore with metallurgy to ensure weld
compatibility with the pipe used, and are supplied prepared for standard butt
welding to all pipes.
Key features and specifications of Hydromine U-Cone pipe couplings
include cast steel BS3100 Gr. 2 or equivalent construction as standard, with
optional coatings available; St52 hubs as standard, with other alloys available
on request for weld compatibility with the pipe system used; Gr.8.8 or higher
for bolts, electro-galvanised as standard; and designed and tested per ASME
B31.3 and ANSI/ASME VIII.
Hydromine U-Cone pipe couplings are available in a choice of sizes with standard
pressure ratings from 64 Bar up to 250 Bar (25Mpa): 100 Bar (10MPA) rated DN50
to DN500; 160 Bar (16Mpa) rated DN50 to DN400; and 250 Bar (25Mpa) rated DN50