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Niles Steel Tanks offers Ultonium II, a premium glass lining for
pipe and fittings applications allowing
process temperatures to 350 degrees F. Ultonium II glass is Cobalt
blue, formulated with special bonding agents to be amenable to
both steel and ductile iron, developing a strong chemical bond
between the glass and substrate during the fusing operation.
Ultonium II is a multi-coat system achieving a finished thickness
of 12 mils nominal, and is inspected both visually and
by spark test to ensure that the glass is free of pin holes
crazing and scaling that would substantially expose the metal
surface. Multiple layers of Ultonium II can be applied for additional wear and protection.
REQUIREMENTS:
1) The Ultonium II chemical bond shall be sufficient to permit a
strain in the metal of .001 in. sq. (the yield point of carbon
steel) without damage to the glass.
2) Ultonium II will be applied to all wetted surface areas. The
Ultonium II will subsequently be fired in a specially designed
furnace at a maturing temperature in excess of 1500 degrees F. for
the appropriate time to achieve a smooth vitreous lining, with a
proper molecular bond.
3) WARPAGE: During firing and after removal from
the furnace, all piping will be supported to minimize the effects
of warp age / deflection. As support does not control the
expansion / contraction of the metal, the following parameters
apply to the finished product. Applying a plum line from the pipe
O.D. © the back of the flange on each end, the maximum deflection
from plum will be as follows:
Pipe from 1’0” to 9’11” – 1/4”
Pipe from 10’0” to 13’11” –
5/16”
4) Ultonium II will have a hardness of at least 5.0 on the Mohs
Scale, and a density of approximately 2.5 grams / cubic
centimeter, as measured by ASTM designation D-792.
5) Flanging of pipe and fittings will be accomplished by ASME
certified welders, and
will conform to ASME accepted welding procedures.
Connections will be std. 150 lb. slip-on or weld neck flanges, or
machined stub ends,
with 150 lb. class forged steel split back-up flanges.
6) CAUSES FOR REJECTION ARISING FROM FABRICATION:
A) Flanges not perpendicular
B) Bolt holes not aligned
C) Fractures in welds
D) Non sealing joints
E) Damaged glass as a result of fabrication
7) CARE IN HANDLING GLASS LINED STEEL PIPE &
FITTINGS:
A) Never lift by inserting solid device (i.e. tow motor fork) into
barrel of item
B) Never support entire weight of pipe or fittings on a single
flange during
Installation
C) CRT-NA gaskets should be used with any glass lined pipe or
fittings with glass
applied to the flange faces, and should be loosened and retorqued
after a 24 hour
heat cycle, to assure proper seating.
D) Bolts must always be tightened in diametric opposition. When
using CRT-NA
gaskets, always conform to the following torque values (ft. lbs.):
1” = 20 – 30#
2”, 3” & 4” = 30 – 50#
6” & 8” = 50 – 90#
10” & 12” = 75 – 125#
E) Never hammer joints into place
F) In storage, never support the item directly on the glass of a
flange face
G) In process, glass lined pipe should be supported by cradles or
slings with at least 1
per every 6’ of horizontal run. Vertical runs of pipe should
be equipped with the
appropriate base expansion joints, and intermediate stabilizers,
especially on
sections in excess of 10’. Anchoring pipe properly at each
side of an expansion
joint system permits adjustment, and allows for the isolation of
vibration.
Niles Ultonium II is rigidly tested under the
following ASTM testing guidelines:
W-H-196 Test = 7.0 – 8.0 mg/in2
This test consists of exposing the enamel to a boiling (212 F)
4/10% solution of sodium Bicarbonate for (8) eight, (18)
eighteen-hour cycles. Maximum weight loss after eight cycles is
not to exceed 15 mg/in2.
PEI T-21 Spot Acid Test
This test is used to determine enamel resistance to acids. The
test area is examined for visible effects on the enamel and is
graded from Class AA (no sign of etching) to Class D (etched
surface). NST’s Ultonium II records Class A performance,
equating to excellent chemical resistance.
Impact resistance
The impact resistance test is used to determine the adhesive
qualities of enamel to the substrate. The enamel is graded on the
fractured glass’s ability to maintain its adherence in the
impact area (an actual indication of the chemical bond). With
Class 1 being the worst to Class 5 the best, Class 3 is considered
acceptable. NST’s Ultonium II outstanding strength
performance consistently falls between the upper Class 4 and
middle Class 5 range.
Niles Steel Tank is proud of our Ultonium II glass, and we look
forward to demonstrating its value in your Latex / Polymer process
system.
For more information,
please contact us
at 269.683.1910
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