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Thermowells are precise
machined components, serving as protection for primary thermometers or temperature sensing
elements, such as Thermocouples; Resistance thermometer bulbs; Bimetallic thermometers
etc.
The proper design and construction of Thermowells for chemical plants, refineries and
continuous process industries has now become an important aspect of instrumentation.
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STABLE.THERM,
Thermowells are designed and fabricated in a number of popular styles, sizes and materials
for your selection for any application. They are offered machined from solid barstock or
seamless pipe fabricated types - built up from metal tubes plugged at one end.
All Thermowells are machined
with extreme care and accuracy to obtain uniformity of wall thickness and shape. The outer
surfaces are smooth finished and polished to eliminate tool grooves which could become
stress concentration lines, which is specially dangerous in austenitic steel. Every
finished Thermowell is pressure tested to ensure soundness of metal structure. |
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-:Some of the different type of Thermowells
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Standard Threaded Thermowells |
Standard Lagging Extension Type |
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Standard Threaded Taper Thermowells |
Heavy Duty Lagging Extension Type |
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Socket Weld Type Thermowells |
Flanged Type Taper Thermowells |
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WHILE SELECTING A THERMOWELL FOR ANY
APPLICATION THE FOLLOWING CONSIDERATIONS ARE OF SIGNIFICANCE:-
MATERIAL OF THERMOWELL
MODE OF INSTALLATION
SIZE OF BORE
TAPER/STRAIGHT SHANKS
INSERTION LENGTH "U"
LAG LENGTH (DEAD LENGTH) |
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Some of the common specifications offered by us
are detailed below :- |
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Type
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We offer Barstock, Built up,
Socket Weld, Van Stone etc. |
Connections
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Screwed, Flanged or suitable
for Welding to process lines. |
Maximum Immersion
Length |
i) Barstock Type - Upto 600 mm
ii) Built up Type - Upto 4 meters.
iii) Socket Weld Type - Upto 600 mm
iv) Van Stone Type - Upto 600 mm |
Material of
Thermowells |
Conforming to ASTM A276 TP, 304, 304L, 316, 316L,
316Ti, 321 or Monel, Hastalloy & other special alloys etc. Fabricated
thermowells are made from pipes conforming to ASTM A. |
Materials of
Flanges |
Forged Carbon Steel ASTM - A105, A181. Forged
Stainless Steels - A182, F316, 316L, 316Ti, 321, A182, F1, F5, F11 etc.
and other alloy steels. |
Deep Drilling
Facilities |
For Barstock, Socket Weld and Van Stone Type
Thermowells are available with our ancillary Unit |
Standards &
Codes followed |
Process Screwed
Connection : API, BS, DIN, ANSI B2.1
Process Flanged
Connection : ANSI B16.5 BS 1560, DIN, JIS.
Female Threads :
NPT ( ANSI B2.1 ) / API.
TIG Welding :
ASME Section 9 Welder qualification D. P. Check
Dimensional Tolerance
: SAMA Standard, B. S. 2765- 1969. |
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