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JCM Ductile Iron Couplings provide and maintain several field
proven design features which are being compromised by todays coupling
manufacturers. Here are Features which allow the JCM Ductile Iron Couplings to
provide the superior working characteristics economics needed for todays water
systems.
- JCM Ductile Iron Couplings (210, 211, 212) are cast with longest middle
rings available in its class. These longer middle rings allow for more
space between pipe ends and accommodates field cutting miscalculations which
speeds installation time. Shortened middle rings permit excessive pipe
deflection, increasing the change of gasket failure.
- JCM Ductile Iron Couplings provide
the maximum number of bolts which
as become the industry standard through generations of field proven designs.
Strategically placed bolt centers increase the coupling's pressure holding
capability by providing even compression of the gasket into the middle ring.
Bolt placement also eliminates gasket misalignment and gasket failure.
- JCM Ductile Iron Couplings are heavily cast of quality
ductile iron. This significant weight provides greater safety factor and
a reliable connection to last the life of the pipeline. JCM castings
experience close inspections and are consistent to casting design criteria.
- One coupling fits both cast iron and A/C class 150 in
4", 6" and 8" sizes. One coupling does the job in most commonly
used sizes. This eliminates the need carrying two couplings of expensive
transition couplings. Just a simple, economical change of gaskets
accommodates most types of pipe. JCM also offers an oversized series of
coupling iron to join oversized cast iron and Class 200 A/C to the more
exacting diameters of pipe being manufactured today.
MATERIAL SPECIFICATIONS - JCM Ductile Iron
Couplings
SLEEVE AND FLANGES: Ductile Iron ASTM A536
GASKETS: Specially compounded new rubber polymer for superior shelf life
and resistance to permanent set. Recommended for water, salt solutions, mild
acids and bases.
BOLTS: Corrosion resistant, high strength low alloy bolts and nuts (AWWA
C-111, ANSI A21.11). Optional Stainless Steel, 18-8 Type 304.
FINISH: Heavy coating of corrosion resistant metal primer. Optional
Fusion Applied Epoxy Coating available.
JCM 8 DUCTILE IRON COUPLING FOR IPS 8.63 OD 211-0863
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