Page 25 - InertexCatalog2010

INERTEXÒ "LTC" and "LTC-NR"
Low Torque Gaskets
AN INDUSTRY-DESIGNED ANSWER
To an Every Day Industry Problem
Every Day Real Industry Problems! The Industry and Inertech Solution
FRP piping mfgs’. recommended maximum torque is too low for a leak-free joint.
Design a gasket that seals at torques below piping mfgs.
recommended levels.
Gasket materials are too hard and/or do not seal at recommended torque levels. Use a soft compressible material that seals at low loads.
When leakage is detected, mechanics frequently torque bolts to stop leakage
resulting in broken or cracked flanges.
Provide a leak free gasket in the initial installation that maintains its
leak free performance for the life of the joint.
Field personnel often use the wrong gasket material for the media to be sealed. Provide a gasket with total chemical compatibility.
Downtime from replacing flanges is very costly.
Provide a gasket that eliminates broken flanges and resulting
downtime.
Lost product as a result of flange leakage or breakage is extremely costly.
Provide a long life, leak-free gasket designed to seal within piping
manufacturers’ recommendations.
When higher temperatures are present, mechanics frequently have to re-torque
gaskets to keep them from leaking.
Provide a material that has little to no creep relaxation or cold flow.
INERTEXÒ "LTC" and "LTC-NR" Low Torque Gaskets
Co-developed by engineers at Virginia Sealing Products, Inc. and Inertech, Inc., the INERTEX Ò "LTC" and
"LTC-NR" Low Torque Gasket designs eliminate the problems most users of FRP, Plastic, or similar fragile
piping materials experience every day. No other gasket design does all this! These designs are the only
pure PTFE (Teflon Ò ) gaskets designed for FRP flanges! Review the table below and decide for yourself.
TORQUE COMPARISON TABLE OF COMMON GASKETING MATERIALS FOR FRP PIPING
Nominal
Pipe Size
A.O. SMITH CO.
Fiberglass
Piping
Maximum
Recommended
Torque
Garlock
Stress
Saver
(Published
Values)
Garlock
Gylon
3545
(Requires
2400 psi
stress)
Gore-Tex
GR
Gasket
Sheet
(Requires
2800 psi
stress)
INERTEXÒ
SQ-S
Gasket
Sheet
(To reach
approximately
2800 psi
stress
INERTEXÒ
“LT”
Low Torque
Gasket
(To produce
approximately
3,000 psi
stress)
1” X 150# 25 ft. lbs 14 ft. lbs 45 ft. lbs 51 ft. lbs 54 ft. lbs 13 ft. lbs
1 ½” X 150# 25 ft. lbs 19 ft. lbs 59 ft. lbs 68 ft. lbs 73 ft. lbs 14 ft. lbs
2” X 150# 30 ft. lbs 33 ft. lbs 105 ft. lbs 122 ft. lbs 129 ft. lbs 19 ft. lbs
3” X 150# 30 ft. lbs 49 ft. lbs 155 ft. lbs 181 ft. lbs 192 ft. lbs 25 ft. lbs
4” X 150# 30 ft. lbs 33 ft. lbs 105 ft. lbs 122 ft. lbs 129 ft. lbs 19 ft. lbs
6” X 150# 30 ft. lbs 46 ft. lbs 159 ft. lbs 185 ft. lbs 196 ft. lbs 24 ft. lbs
8” X 150# 40 ft. lbs 66 ft. lbs 240 ft. lbs 280 ft. lbs 281 ft. lbs 36 ft. lbs
10” X 150# 40 ft. lbs 64 ft. lbs 222 ft. lbs 259 ft. lbs 276 ft. lbs 35 ft. lbs
12” X 150# 40 ft. lbs 93 ft. lbs 323 ft. lbs 376 ft. lbs 400 ft. lbs 41 ft. lbs
14” X 150# 100 ft. lbs N/A 456 ft. lbs 531 ft. lbs 564 ft. lbs 85 ft. lbs
Two Designs Cover MOST Possibilities
(SPECIAL DESIGNS AVAILABLE)
U.S. AND OTHER PATENTS PENDING
The INERTEXÒ “LTC-NR” Design
(NON ROTATIONAL)
Prevents Flange Rotation!
For extremely light, fragile, or
sensitive piping materials. Also
excellent for Food,
Pharmaceutical, or Semi-
conductor applications
The INERTEXÒ “LTC” Design
(STANDARD)
Handles nearly 90% of all FRP,
Plastic, and other Lightweight
Flanges. Used primarily in
Pulp and Paper and Chemical
Plants.