of TM Pipe Fittings
TM fittings are produced in accordance with the
national or international standards depending
Iron Threaded Fittings
Iron Threaded Pipe Unions
Pipe Plugs, Bushings, and Locknuts with
/ ASME B1.20.1-1983
PIPE THREADS, GENERAL PURPOSE (INCH)
& 1256 : 2000
Threaded pipe fittings in malleable cast iron and
21 : 1985
threads for tubes and fittings where
joints are made on the threads
EN 10242 : 2002
Threaded pipe fittings in malleable
49 : 1994
cast Iron fittings threaded to ISO 7-1
threads where pressure- tight joints are
Dimensions, tolerances and designation
TM fittings are manufactured
of black heart malleable
iron (the microstructure is shown on below picture). Our
is melted and refined in electric induction furnaces, and annealed
with extreme care.
iron has mechanical properties superior to those specified by
national / international standards for pipe fittings.
superiority is shown by the following two figures, in which
the Tensile Strength and Elongation of TM malleable iron are
compared with the specifications specified in some national
of Comparison of Tensile Strength and Elongation)
TM fittings are available
either galvanized or black. Galvanized fittings have an average
coating thickness of 86 micrometers or average coatings weight
of 610 g/m² or higher.
TM fittings are suitable to
be used either for steam,air,water,gas and oil pipes or for
many other fluids.
The recommended working pressure
under specified temperatures are rated as follows :
of Internal Fluid
and Oil at 300 ° C
Oil and water at 200 ° C
Non-shock at 120 ° C
important dimensions of TM pipe fittings are shown in the tables
and Economy Our Ultimate Goals.Except
where stated as minimum dimensions, tolerances on face-to-face,
face-to-centre and centre-to-centre dimensions shall be in accordance
with below table.
Shapes and Threads
shapes of TM
pipe fittings are illustrated on Dimensions
EN Standard and
American Standard. Our
pipe fittings with
mainly banded, but also beaded or plain,
which are supplied upon our customers' preference.
pipe fittings are tapped according to BS 21 (1985) or
ANSI / ASME B1.20.1 (1983) or ISO 7/1 standards, upon the customers'
specifications and requirements.Threads can also be machined
following German standard (DIN 2999 : 1983) whenever requested
by our customers. All the threads are chamfered to assist assembling
and avoid "cross threading".
Management System and Certification
Thai Malleable Iron and Steel Co.,Ltd.
Strictly follows internationally approved procedures for quality
management control system, to ensure that our TM brand pipe
fittings are manufactured to the very highest standards.
All of our products for sale within Thailand
satisfy the Thai Industrial Standard Institute certification
(TISI). In recognition of our efforts to continually improve
and strengthen our already well established quality control
procedures, we were granted ISO 9001:2000. Further more we have
achieved rigorous inspections and examinations from the British
Standards Institution (BSI) and awarded Kitemark for our pipe
While ISO 9001:2000 recognizes the excellence
of a manufacturer's quality control system. The BSI Kitemark
standard compliance goes an important step further to recognize
the excellence of the actual manufactured products.
TM brand pipe fittings are critically inspected
at every stage of the manufacturing process, starting from the
supply of raw materials right up to the packaging of the finished
products, to ensure that we achieve a consistent quality level,
which our customers worldwide are able to rely upon.
Our extensive list of products will satisfy a
very wide range of applications.
Our well-managed production process and strict
quality control procedures are coupled with our on-time delivery
schedule and our very friendly customer service, to ensure TM
brand pipe fittings will satisfy the most discerning of customers.