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Butt welding fittings meet the following
national and international product standards;
Production to other standards and customers individual
specifications is possible by special agreement. |
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Seamless Butt-Welding Fittings |
Seamless butt-welding fittings are produced
from seamless tube and pipe by either hot
or cold extrusion, forming, forging, machining,
or by a combination of two or more of these
operations.
Seamless butt-welding fittings are available
in standard size, as published in this catalogue,
and in non-standard sizes. Standard sizes fittings
are generally available ex stock.
Non-standard size fittings are produced subject to
certain minimum quantity limitations. Details
are available on application. |
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Seam-Welded Butt-Welding Fittings |
Seam-welded butt-welding fittings
are produced from hot or cold rolled annealed
and pickled sheet or plate, formed into half shells
or segments and longitudinally seam-welded.
Seam-welded butt-welding fittings are available
in standard sizes, as published in this catalogue,
and in non-standard sizes.
Standard size fittings are generally available
ex stock. Non-standard size fittings are produced
subject to certain minimum quantity limitations.
Details are available on application. |
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Material |
Material
Spec. |
Applied Spec. |
Al-Brass |
BS 2871 CZ110
DIN17660(CuZn20Al2) |
ASTM B111 C68700
JIS H3300 C6870 |
BS1640
DIN2608 DIN86090
DIN2615 DIN86088
DIN2616 DIN86089
DIN28011
ANSI B16.9
ANSI B16.28 |
Cu-Ni 90/10 |
BS 2871 CN102
DIN17664(CuNi10Fe1Mn) |
ASTM B466, B467 C70600
JIS H3300 C7060 |
Cu-Ni 70/30 |
BS 2871 CN107
DIN17664(CuNi30Mn1Fe) |
ASTM B466, B467 C71500
JIS H3300 C7150 |
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Welding |
Welding is carried out by Code-Qualified personnel
(ASME Boiler and Pressure Vessel Code)
whose qualifications are regularly checked and approved.
Established welding methods include pulsed TIG and shielded electrode techniques. |
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Supply Condition |
Unless otherwise
agreed, seamless butt-welding fittings are
supplied. Heat-treatment scale is removed.
Seam-welded butt-welding fittings are supplied
in the as-welded condition. |
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End Preparation |
Unless otherwise agreed, butt-welding fittings are
supplied with plain ends, Cut square and deburred.
Alternatively, fittings with a wall thickness of 2.0mm and above
can be supplied with bevelled ends to ANSI B16.25.
Other weld proparations, to standards laid down by approved specifying authorities, can be performed on application. |
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Inspection and Testing |
Throughout the
manufacturing process, from melting and alloying
to the finished product, stringent quality
control inspections and tests are carried
out to ensure that product quality complies
fully with customer requirements.
All tests are performed in accordance with
the requirements of the relevant specification. |
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Certification |
All butt-welding
fittings are supplied with a certificate listing
the tests which have been performed in accordance
with relevant specifications and / or customer
requests. |
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Marking |
All butt-welding
fittings are marked with Alloy No, Heat No,
Nominal Diameter, Degree and maker's trade
mark.
Additional information, e.g standard and alloy
number, maximum pressure rating in bar, can
be added on request. |
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Packing |
The utmost care
is taken to ensure that butt-welding fittings
are fully protected against damage during
transit. |
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TTS supplies a full range of composite and solid
weld neck, blind, slip-on flanges and others. |
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Materials |
- AI-Brass : |
ASTM B111 C68700 |
Cast bronze : |
ASTM B61, B62, |
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JIS H3300 C6870 |
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JIS H5111 BC1 ~ BC7 |
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BS 2872 CZ110 |
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BS 1400 LG©üC
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- Leaded yellow brass : |
ASTM B584 C85400 |
Steel : |
ASTM A105 |
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JIS H5101 YBSC©ü |
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JIS G3101 SS400 |
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- Cu-Ni 90/10 : |
ASTM B151 C70600 |
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JIS H3300 C7060 |
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BS 2872 CN102 |
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Applicable Standards |
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The national and international standards to which the flanges are produced
are detailed in the relevant product tables. |
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Composite Flanges |
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Composite weld-neck and composite slip-on flanges are made up from two components,
an inner Flange(welding collar) in Al-Brass, Cu-Ni 90/10, Cu-Ni 70/30 and an outer
flange in carbon steel.
Composite blind flanges are made up from a carbon steel blind flange with a welded-on, and machined disc in Al-Brass, Cu-Ni 90/10 or Cu-Ni 70/30. |
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Solid Flanges |
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Solid flanges in Al-brass, Leaded yellow brass, Cu-Ni 90/10 or Cu-Ni 70/30 are produced from bar by hot forging and machining, solid flanges in bronze are produced by casting and machining. |
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Solid Silver-Brazing Flanges |
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Solid silver brazing flanges incorporate integral silver-brazing alloy rings and under normal circumstances there is generally no need to socket feed with additional brazing alloy. The silver brazing alloy to AWS A5, 8-BAG1, BAG7, JIS E3261 BAG1, BAG7 or BS1845 AG1, AG7. |
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Product Range |
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Composite and solid flanges are available in standard sizes machining those of the relevant pipe and butt welding fittings.
Non-standard size flanges are produced to certain minimum quantity limitations, availability on application. |
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Inspection and Testing |
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A Series of stringent quality-control inspections and tests is performed throughout the entire manufacturing process, from melting and alloying to the finished product to ensure product quality which complies with the customer's requirements. Final inspection generally includes visual and dimensional control as well as chemical and mechanical tests to ensure chemical, physical and dimensional accuracy. |
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Applicable Standard |
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The various national and international standards
to which silver-brazing and threaded fittings are
produced are detailed in the relevant product tables. |
Types |
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Silver-brazing and threaded fittings are produced
by hot forging and supplied with machined surfaces.
Silver-brazing and threaded fittings are available
in standard sizes to be used with tubes having
the following outside diameter; 16, 20, 25, 30,
38, 44.5 and 57§® |
Silver-Brazing Alloy Rings |
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All fittings incorporate integral silver brazing
alloy rings and under normal circumstances there
is generally no need to end feed with additional
brazing alloy.
The silver-brazing alloy to AWS A5.8-76, BAG1
BAG7, BAG14.
(JIS E3261 BAG1, BAG7 or BS1845 AG1, AG7) |
Threads |
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Threaded fittings are supplied with threads
according to NPT, API, BSP and DIN259 when other
standards are requested, the total length of the
fitting may very slightly. |
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Materials |
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- Aluminium Brass : |
ASTM B111 C68700 |
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BS 2872 CZ110 |
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JIS H3300 C6870, C6871, C6872 |
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- CuNi 90/10, 70/30 : |
ASTM B151 C70600, C71500 |
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BS 2872 CN102, CN107 |
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JIS H3300 C7060,C7150 |
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Union Joint |
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Union type fittings have round-nose
to cone seat joint and to ensure freedom
leaks, care must be taken to avoid damage
to the jointing faces.
With joints of this type it is essential to
use a suitable jointing compound, or tape
to ensure completely satisfactory result. |
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Flux |
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Flux is recommended and specially
suitable for use with silver brazing fittings.
Satisfactory joints can, however, be made
with other suitable silver brazing fluxes. |
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Socket Weld Fittings |
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All silver-brazing fittings
can be also supplied as fittings without integral
silver brazing alloys.
These fittings have no silver ring groove. |
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