1. CHEMICAL
RESISTANCE :
PTFE is
chemically inert to all chemical and solvents with the exception of
molten alkali metals and strong Flourine donors. We use fine virgin PTFE
powder (not any recycled material) to produce PTFE liners with the
ultimate chemicals and physical properties. PTFE lined pipe work can be
used with aggressive media such as HCl,H SO (Various Conc.), HNO , Hot
NaOH Solutions, all chlorides-Organic & Inorganic all phenols, all
sulphates etc.
2.TEMPERATURERESISTANCE:
PTFE has good
flexibility and ductility in the temperature range of (-)50 to 235 C. It
should be noted that PTFE can be used at higher temperature (above 200
C) and at lower temperature Below -10º C under certain conditions.
3.OPERATINGPRESSURE:
PTFE lined
pipework can be used up to 20 bar/300psi.g. Full vacuum resistance
depending upon the process conditions. Details to be provided by client
for specific application.
4.
RESISTANT TO LIGHT AND ATMOSPHERICCONDITIONS
PTFE may be used
without any problem in the open air an there are no mechanical and
electrical characteristics even then subject to extreme climatic
conditions.
5.
ELECTRICALPROPERTIES :
PTFE
has good electrical insulation with a very low dielectric constant.
6.MATERIALSPECIFICATIONS
:
-
Pipe : ASTM-A 106 Gr.B, Seamless Sch.40 All Pipe Spools have lap joint
flange at one end and fix flange at other end. Lined pipes are available
up to 3 mtrs. length max. (higher length available upon request.
-Flange : Flanges made from boiler quality place material confirming to
IS 2062 ASA150 class and dimension as per ANSI B 16.5 depending upon
material availability.
-Collar : Collar made from boiler quality plate/plate material
confirming to IS 2062 depending upon the material availability
-Fittings : Formed and fabricated from seamless C.S. Pipe/So-iron lined
with PTFE/FEP/PFA.
-Lining : As perASTMF1545 / 95
7.
INSPECTION & TESTING
Dimensional Check
:As per product catalogue.Hydro Test : All 150 class pipes &
fittings shall be tested at 25 bar after lining and 46.5 bar for 300
class pipes and fittings.
Electrostatic Test : A test voltage of 10KV to 25 KV depending upon
liner thickness.
Important
Note: The values above are given solely for purposes of reference. Our
company does not undertake any liability or responsibility linked with
the use of our materials, taking into account the above parameters.
Copyright © 2008
Automat Industries. All rights reserved.
CHARECTERISTICS
OF FEP LINED PIPES
®
®
