TPi April 2008

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April 2008 Tube Products International 35
f i t t ingsfeature on . . .
Pressfitting system
Eurotubi’s Pressfitting is a system
of tubes and fittings used for
hydrothermosanitary installations,
recommended for the conveyance
of water, gas and compressed air.
The fittings use an o-ring seating
with a high resistance rubber seal,
able to support high pressures and
temperatures over 85°C.
Tubes and fittings are assembled
through the permanent defor-
mation of the fitting by special
pressing jaws mounted on small
electromechanical tools. Once
pressed, the o-ring ensures a
hermetic, indivisible connection.
The Pressfitting system combines the reliability of joints with an easy and
quick laying method, as it does not need any gluing, threading or welding. As
a consequence, the major costs of fittings are balanced by the low cost of
labour.
The system has a wide range of fittings available, in diameters from 15 to
108mm in stainless steel 316L, and 12 to 108mm in carbon steel.
The quality of materials, the constant sealing, duration tests and a rigorous
quality control have allowed Eurotubi’s Pressfitting system to obtain conformity
with the strictest European certifications.
Carbon steel represents for thermal installations a competitive and innovative
solution, offering the same quality level provided by traditional copper systems,
but at lower costs. The Eurotubi Pressfitting system is compatible with many
brands of fittings.
Eurotubi Europa – Italy
•
Eurotubi’s Pressfitting system is assembled S S
using electromechanical tools with special
pressing jaws
Other applications include rolls and
bandages of metallurgical rolling mills,
mills for glass rolling, papermaking
machines and sheet bending rolls;
rollers for billets continuous die-
casting machines, including bimetal;
disk knives for coils cutting; sleeve
blanks for internal-combustion engines;
press mould blanks for machine
building, abrasive, refractory and
mechanical-rubber industry; casing and
ring blanks for big bearings, electric
motors, hydro-cylinders and pumps,
valves (including ball valves); tube
products operating in sea water, namely
periscopes, oil platform columns, piles
with anticorrosion oxide-silicon coating;
heavy loaded construction columns;
low waste billets in machine building
for gas turbine stator rings; crane and
brake drums; sleeves including wear-
resistant bimetal; bandages, flanges,
gears; billets for press instruments; tube
billets for pilger mills, cone rolling mills,
for press deformation.
Centrifugally cast tubes have no
alternative among the known tube
manufacturing methods when seam-
less large diameter heavy wall hard-
deformed or non-deformed steel tubes
are required.
The production of abrupt bend offsets
has been started, with a range from
22 to 630mm of carbon and stainless
steel grades according to GOST and
international standards requirements. The
production of offsets made of titanium
alloys, chemical- and high-resistance
steel grades has also been mastered.
Trubostal – Ukraine
Fittings to fight
corrosion and high
temperatures
Officine Orsi, based in Milan, Italy,
supplies a complete range of made-to-
measure products for all applications in
the chemical, petrochemical, pharma-
ceutical and off-shore industries.
Thanks to the wide range of materials
used, including stainless steels, duplex,
superduplex, nickel alloys (Alloy C276-
C22-B3-59-200-400-600-625-800-825)
and titanium, the company is able to
solve the most common problems
concerning corrosion and high
temperatures. Production is divided
into three departments: welded pipes,
fittings and pressure vessels.
The wide range of fittings, with
diameters from ½" to 40", includes
elbows with radius from one to ten times
the diameter, concentric and eccentric
reductions, 90 and 45° T joints, stub
ends, caps, collars, rings, threaded and
socket welding fittings, flanges and
special pieces to drawing.
Experience and the flexibility of the
production system make it possible
to produce materials which are not
commercially available in non-standard
sizes and small quantities, including
production in extremely short times,
to face emergencies such as plant
breakdown.
The company also possesses an
extensive stock of sheet, tubes and
fittings.
Officine Orsi operates a quality system
qualified according to ISO 9001 by
Lloyd’s Register, and is certified by
TÜV.
All products can be supplied with Rina,
LLRR, NV, BV and TÜV inspection,
in conformity with the PED 97/23/CE
directive.
Officine Orsi SpA – Italy