Chemical Engineering October 2016 - 84

Sealing Technology 2016 Special Advertising Section
Integral tie rods simplify maintenance
PROCO's approach to integral tie rod design controls
flange loads and eases access for maintenance
valve casing interference, which may be a
problem when installing control rod plates
of standard triangular design. Further, it
avoids any chance of pressure thrust forces
being transmitted to the backside of the
pump or valve mating flange.
The improved tie rod design from PROCO
xpansion joint specialist PROCO
Products, Inc. offers an integral tie rod
(ITR) design with an optional demounting
feature on all its rubber expansion joints.
The demounting feature is ideal for applications
where maintenance operations
require the expansion joint to be retracted
away from an adjacent pump or valve.
As the image above shows, this ITR design
also eliminates concerns with pump or
E
This ITR design concept can also be applied
to non-metallic piping systems, where
plastic or fiberglass mating flanges may not
tolerate the thrust loads applied via a traditional
triangular rod plate arrangement.
PROCO's integral tie rods are designed
to withstand 1.5 times the maximum pressure
rating of the rubber expansion joint
itself. The company's standard in-stock control
rods are AS F1544-Grade 36 Melt USA
with AS A563 A finished hex nuts and USS
flat washers zinc plated to AS B633 Type 3
clear zinc. Optional hot dipped galvanized
hi-tensile A193 B7 rod with A194 2H hex
nuts are available on request.
This ITR arrangement is also ideally suited
to address unequal flange pattern applications
such as ANSI 150# drill x DIN PN 16
drill patterns.
Save money with expansion joints
Alongside its high-performance products, General Rubber
shows how to cut both capital and maintenance costs
S
ince 1950,
General
36 in. ID x 15 in. FF
Style 1102, 1202
double (2) wide arch
expansion joint
Rubber Corp.
has been at the
forefront of innovative
rubber
expansion
joint design
and manufacturing.
With its
experienced
engineers and
sales team, the
company is able
to provide powerful
solutions to even
the most demanding
applications across
multiple industries
and sectors.
General Rubber,
which is certified to
both ISO 9001 and ISO 14001, leverages its
state-of-the-art U.S. manufacturing facility
to lower operating costs while respecting
74
the environment. The company is committed
to providing quality, defect-free performance
products at competitive prices.
General Rubber is particularly proud of
its programs that focus respectively on engineering,
procurement and construction
(EPC), and maintenance, repair and operations
(MRO). For the EPC sector, it offers
a Best Piping Practice and Optimization
(BPPO) program with benefits including
reduced material and construction costs
as well smaller system footprint. For the
MRO sector, General Rubber offers a Plant
Reliability and Efficiency Program (PREP)
to transition customers from an overly conservative
calendar-based replacement program,
or a somewhat reckless run-to-failure
based approach, to a condition-based predictive
maintenance program.
General Rubber's use of advanced materials
and technologies has differentiated
the company as a leader in the industry, and
is the principal reason its performance products
range " From the Simple to the Simply
Amazing " .
face-to-face dimensions.
Floating flanged designs are available
to compensate for piping misalignment.
Unaflex's entire PTFE and FEP product line is
manufactured in the U.S., and the company
is certified to ISO 9001:2008.
The complete product range includes:
* Large-diameter solid FEP joints similar to
styles 112, 113 and 115, available in sizes
up to 144 in.
* PTFE-lined metal hose offering a combination
of superior strength with excellent
chemical resistance.
* Corrugated PTFE sleeves built to customers'
specifications.
* PTFE-lined flue duct for superior resistance
to corrosive combustion gases.
* PTFE tubes in various diameters and
lengths, with complete PTFE fittings also
available.
www.general-rubber.com
* PTFE gasket material, both pre-cut and in
roll form.
CHEMICAL ENGINEERING WWW.CHEMENGONLINE.COM
www.unaflex.com
OCTOBER 2016
www.procoproducts.com
Fluoropolymers
resist corrosion
Unaflex expansion joints and
hoses suit tough conditions
U
naflex LLC is the industry leader in
" combined " technologies for the expansion
joint and flexible hose industries. Since
1972 Unaflex has been dedicated to stateof-the-art
technologies combined with proven
manufacturing processes. Unaflex has
orientated its PTFE and FEP product lines
toward safety and double containment.
Flexible tooling allows the company to produce
PTFE- and FEP-lined expansion joints
in any size up to 144 in. diameter.
PTFE-lined metal bellows are available
in 2-144 in. sizes with pressure capabilities
up to 400 psi. Two- to three-ply solid FEP expansion
joints are translucent and available
in 14-144 in. sizes, with pressures reaching
50 psi. Where elevated pressures are a
concern, Unaflex offers PTFE- and FEP-lined
rubber joints for service at up to 300 psi.
All the company's expansion joints are
available in custom sizes and non-standard
Unaflex PTFE
expansion
joints
http://www.procoproducts.com http://www.general-rubber.com http://www.unaflex.com http://WWW.CHEMENGONLINE.COM
Chemical Engineering October 2016

Table of Contents for the Digital Edition of Chemical Engineering October 2016
