Page 20 - ExpansionJointsCatalog2010

PTFE lined rubber expansion joints
The PROCO Series 231/BT PTFE lined expansion joints are designed
for tough demanding corrosive chemical applications, as found in:
Chemical & Petrochemical Process Facilities and Highly Corrosive
Industrial Piping & Pollution Control Systems. The greatest usage of
the Series 231/BT is found in the Pulp and Paper Industry where the
ability to resist corrosive attack at elevated temperature and pressure
is unmatched by metallic, plastic or other competitive expansion joints.
PROCO’s Series 231 PTFE lined expansion joints can easily handle
such pulp/paper applications as: White-Green-Black liquor, bleach
plant chlorination and caustic extraction stages. Chemically resistant
against the entire pH range, PROCO Series 231 PTFE expansion joints
are designed to handle practically every chemical plant application.
Installed next to mechanical equipment or between anchor points of a
piping system, specify the PROCO 231/BT to: (1) Absorb Pipe Move-
ments/Stress, (2) Reduce System Noise, (3) Isolate Mechanical Vibra-
tions, (4) Compensate Alignment/Offset, (5) Eliminate Electrolytic Ac-
tion and Electrolysis, (6) Protect Against Start-Up/Surge Forces. Our
history in the manufacture of expansion joints dates back to 1930.
When you need an engineered rubber expansion joint solution to a
piping problem, call PROCO.
Series 231/BT. The new and improved PROCO Series 231/BT will comple-
ment the existing PROCO Series 251/BT expansion joint. This new molded
product has been completely re-engineered to provide improved strength,
flexibility and movement capabilities. Manufactured utilizing tire cord indus-
try technology, the Series 231/BT combines woven polyester fabric and
polyester tire cord into a fabric matrix and bonded with a Chlorobutyl elas-
tomer that is reinforced with wire and bonded to a PTFE liner to create a
product with greater operating performance. Note: The PTFE liner extends
to the bolt circle of the bottom of bolt holes.
Greater Movements with a Lower/Wider Arch Profile. The movements
for the PROCO Series 231/BT exceed the specification of the Fluid Sealing
Association’s, Rubber Expansion Joint Division Technical Handbook (Sixth
Edition), Table V. Due to a new and improved lower, wider profile arch,
more axial compression and extension coupled with lateral and angular
movements can be obtained without increasing the face-to-face require-
ments. For greater movements based on re-engineering and new product
construction for highly corrosive piping installations, specify the PROCO
Series 231/BT PTFE lined expansion joints.
Chemical Service Capability at Minimal Cost. Expensive, exotic metal
expansion joint for low temperature service can be replaced with the PROCO
Series 231/BT PTFE lined expansion joints. Engineered to operate up to
225 PSIG and 250° F, the PROCO Series 231/BT can be specified for a
wide range of piping system requirements. Our standard stock is furnished
with an exterior Chlorobutyl cover. Compared to metal, plastic or other rub-
ber-backed competitive products, you will invest less and have access to
in-stock availability with the high quality PROCO Series 231/BT.
Specifications Met. PROCO has assigned conservative pressure ratings
to the Series 231/BT PTFE lined rubber expansion joints. The ratings,
however, meet the requirements of the Fluid Sealing Association’s, Rub-
ber Expansion Joint Division Technical Handbook (Sixth Edition), Series
C. The pressure ratings for the Series 231/BT PTFE lined rubber expan-
sion joints have been fully tested and are based on a minimum four-to-
one safety factor. For pressure protection with confidence, specify the
PROCO Series 231/BT.
Prevents Electrolysis and Electrolytic Action. In Chemical applications
when metallic expansion joints are used, they are generally of a metal dis-
similar from the pipeline. This may create an electrolytic galvanic action
that could be destructive to the connector equipment or piping system. The
use of the rubber-backed PROCO 231/BT PTFE lined expansion joints pre-
vents this potential hazard. Additionally, our 231/BT expansion joints are
nonconductive and eliminate the metal-to-metal contact at the flange face
thus stopping electrolysis.
Absorbs Vibration • Noise • Shock. The PROCO Series 231/BT PTFE
lined rubber expansion joints are a replacement for “sound transmitting”
metallic expansion joints. Sound loses energy traveling axially through an
expansion joint. Water hammer, pumping impulses, water-borne noises and
other forms of strain-stress-shock are cushioned and absorbed by the PTFE
lined/rubber elastomer expansion joint, not related to piping. Install the Se-
ries 231/BT in a system to reduce vibration transmission when the piping
section beyond the expansion joint is anchored or sufficiently rigid. For quiet,
stress-free systems specify the PROCO Series 231/BT.
Large Inventories Mean Same-Day Shipment. We maintain the largest
inventory of expansion joints in the world. Rubber, PTFE Lined, Plastic or
Metal Hose — PROCO can ship the products you need when you need
them! In fact, when it comes to expansion joints, if PROCO doesn’t have
them in stock … nobody does!
Information • Ordering • Pricing • Delivery. Day or night, weekends and
holidays … the PROCO phones are monitored 24 hours around the clock.
When you have a question, you can call us.
Toll-Free Phone ......... 800 / 344-3246 USA/CANADA
International Calls ...... 209 / 943-6088
Fax ............................. 209 / 943-0242
Email .......................... sales@procoproducts.com
Website ...................... www.procoproducts.com
Weekday office hours are 5:30 a.m. to 5:15 p.m. Pacific Time.
© PROCO PRODUCTS, INC.
Rev. 00 5/03
Protecting Piping And
Equipment Systems
From Stress/Motion
NATIONAL ASSOCIATION OF HOSE
AND ACCESSORIES DISTRIBUTORS
231/BT
SERIES
FLUID SEALING
ASSOCIATION
INDEPENDENT
SEALING
DISTRIBUTORS
Table 1: Available Styles • Design Descriptions • I.D. Sizes
#231/BT — Standard Single-Arch, Spool-Type Joint (See Table 2) 1"–48"
#251/BT — Standard Single-Arch, Spool-Type Joint 1"–48"
#151/BT — Special Non-Standard Length Single-Arch, Spool-Type Joint 1"–48"
#310/BT — Standard “No-Arch” Flanged Rubber Pipe Connectors 1"–12"