Page 29 - ExpansionJointsCatalog2010

PTFE and FEP lined rubber expansion joints
The PROCO Series 251/BT PTFE and FEP lined expansion joints are
designed for tough demanding corrosive chemical applications, as
found in: Chemical & Petrochemical Process Facilities and Highly
Corrosive Industiral Piping & Pollution Control Systems. The greatest
usage of the the Series 251/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 251 PTFE or FEP 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 251
PTFE and FEP expansion joints are designed to handle practically
every chemical plant application. Installed next to mechanical equip-
ment or between anchor points of a piping system, specify the PROCO
251/BT to: (1) Absorb Pipe Movements/Stress, (2) Reduce System
Noise, (3) Isolate Mechanical Vibrations, (4) Compensate Alignment/
Offset, (5) Eliminate Electrolytic Action and Electrolysis, (6) Protect
Against Start-Up/Surge Forces. Our history in the manufacture of ex-
pansion joints dates back to 1930. When you need an engineered rub-
ber expansion joint solution to a piping problem, call PROCO.
Series 251/BT replaces Series FEP. The new and improved PROCO
Series 251/BT will replace the PROCO Series FEP lined rubber expan-
sion joint. (Series FEP products will be available in certain sizes. Contact
Proco for information.) This new hand-built product has been completely
re-engineered to provide improved strength, flexibility and movement ca-
pabilities. Manufactured utilizing tire cord industry technology, the Series
251/BT combines woven polyester fabric and polyester tire cord into a
fabric matrix and bonded with a Chlorobutyl elastomer that is reinforced
with wire and bonded to a PTFE or FEP liner to create a product with
greater operating performance.
Greater Movements with a Lower/Wider Arch Profile. The movements
for the PROCO Series 251/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 251/BT PTFE and FEP 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 251/BT PTFE and FEP lined expansion joints. Engineered to oper-
ate up to 225 PSIG and 250°F, the PROCO Series 251/BT can be specified
for a wide range of piping system requirements. Our standard stock is fur-
nished with an exterior Chlorobutyl cover. Other elastomer covers are avail-
able on special order. Compared to metal, plastic or other rubber-backed
competitive products, you will invest less and have access to in-stock avail-
ability with the high quality PROCO Series 251/BT.
Specifications Met. PROCO has assigned conservative pressure ratings
to the Series 251/BT and FEP 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 251/BT PTFE and FEP lined rubber
expansion 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 251/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 251/BT PTFE and FEP lined expansion
joints prevents this potential hazard. Additionally, our 251/BT expansion
joints are non-conductive and eliminate the metal-to-metal contact at the
flange face thus stopping electrolysis.
Absorbs Vibration • Noise • Shock. The PROCO Series 251/BT PTFE
and FEP lined rubber expansion joints are a replacement for “sound trans-
mitting” 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 or FEP lined/rubber elastomer expansion joint, not related to
piping. Install the Series 251/BT in a system to reduce vibration transmis-
sion when the piping section beyond the expansion joint is anchored or
sufficiently rigid. For quiet, stress-free systems specify the PROCO Se-
ries 251/BT.
Large Inventories Mean Same-Day Shipment. We maintain the largest
inventory of expansion joints in the world. Rubber, PTFE or FEP 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.
Rev. 01 11/00
Protecting Piping And
Equipment Systems
From Stress/Motion
NATIONAL ASSOCIATION OF HOSE
AND ACCESSORIES DISTRIBUTORS
251/BT
SERIES
Table 1: Available Styles • Design Descriptions • I.D. Sizes
#251/BT — Standard Single-Arch, Spool-Type Joint (See Table 2) 1"-48"
#151 — Special Non-Standard Length Single-Arch, Spool-Type Joint 1"-48"
#152 — Special Non-Standard Double-Arch, Spool-Type Joint 1"-48"
#153 — Special Non-Standard Triple-Arch, Spool-Type Joint 1"-48"
#310 — Standard “No-Arch” Flanged Rubber Pipe Connectors 1"-12"
FLUID SEALING
ASSOCIATION
INDEPENDENT
SEALING
DISTRIBUTORS