TPi July 2009

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July 2009 Tube Products International 47
ConnectorsFi t t ings , Flanges &
WRAS-approved Redman fitting, as
barrier integrity is preserved in the joint
area. Joints are rated for cold water at
16 bar, and the range of fittings includes
elbows, couplers, flange adaptors,
reducers, tees, flanged tees, repair
joints and duck foot bends.
Specialist applications include jointing
of polyester reinforced polyethylene
hose used in pipe lining, low SDR (thick
wall) high pressure pipes and externally
reinforced polyethylene pipes for oil,
gas and chemical applications.
The fittings consist of an epoxy coated
mild steel outer casing with an internal
coaxial copper membrane, plus a
polymeric coated (Rilsan) mild steel
(stainless steel optional) insert. The
joint is made by a purpose-designed
hand pump used to inject a non-toxic
biodegradable fluid through a nipple into
the cavity between the mild steel outer
and the copper inner. At 260 bar the
copper insert is permanently deformed,
forcing the PE pipe onto the insert,
forming an end load resistant joint.
Once the joint is made, the pressure
may be released. For high pressure
applications the fluid may be replaced
by a setting resin to resist long-term
back pressure and relaxation of the
copper membrane.
The fabricated nature of the fittings
allows flexibility of design and production
for variants of the standard range and
for bespoke applications.
Redman Fittings Limited – UK
Flange products
from Korea
ST&H Corporation is an ISO 9001, CE/
PED, CRN (Canada) and SABS certified
manufacturer. All of the company’s
products are manufactured in com-
pliance with the requirements of JIS,
ANSI, DIN, BS and special requests.
The company’s production range
includes sizes from ½" to 72" (15 to
1,800mm), in materials such as A105,
A105N, A350 LF2, A694 F series, A182
F304/304L and F316/316L. Production
capacity is 1,500 metric ton/month.
ST&H Corp – South Korea
ST&H Corporation manufactures flanges S S
up to 72"