Page 36 - ExpansionJointsCatalog2010

molded PTFE expansion joints

440

SERIES

The PROCO Series 440 PTFE Molded Expansion Joints are used for corrosive applications

found in: Chemical-Petrochemical, Industrial Process Piping Systems, Power Generation

Plants, Pulp/Paper Plants, Water-Wastewater Sewage and Pollution Control Systems where

metallic joints/lap joints or PTFE & FEP-lined rubber expansion joints may have been pre-

viously used or specified. Specify PROCO Series 440 expansion joints for installation be-

tween anchor points or next to mechanical equipment such as: Absorption Machines, Blow-

ers, Chillers, Fans, Graphite Heat Exchangers, Glass Lined Vessels, Pumps, and Exotic

Alloy/Plastic/Glass Lined Piping Systems. The Series 440 expansion joints are designed to:

(1) Absorb Pipe Movements/Stress, (2) Reduce System Noise, (3) Reduce Mechanical Vi-

bration, (4) Compensate Alignment/Offset, (5) Eliminate Electrolysis, (6) Protect against

Start-up/Surge Forces. Our history in the manufacture of expansion joint products dates

back to 1930. When an engineered solution is needed to solve a piping problem, call PROCO.

Engineered For Your Application.

The PROCO Series 440 PTFE expansion joints are available

in 2, 3, and 5 convolutions. Each convolution profile offers different overall lengths (face-to-

face dimensions), movements and pressure/temperature rating to fit the required specifica-

tion. Available styles include:

• Style 442-BD:

Features two convolutions for minimal movements, higher pressure/tem-

perature ratings and short face-to-face opening requirements. Style 442-BD sizes range from

1" to 24" diameter. (See Table 1)

• Style 442-E:

Features two convolutions, and is engineered with T-band compression lim-

iters, limit cables (meets MIL-W-8342), and face-to-face lengths to be an exact equal to

other more expensive, competitor models. Style 442-E sizes range from 1" to 12" diameter.

(See Table 2)

• Style 443-BD:

Features three convolutions and is designed for moderate movement and

ease of system installation. Style 443-BD sizes range from 1" to 24" diameter. (See Table 3)

• Style 443-E:

Features three convolutions, and is engineered with T-band compression limiters,

limit cables (meets MIL-W-8342), and face-to-face lengths to be an exact equal to other more

expensive, competitor models. Style 443-E sizes range from 1" to 8" diameter. (See Table 4)

• Style 445-BD:

Features five convolutions, and is designed for maximum movements, low

pressure/temperature ranges, vibration reduction and greater face-to-face lengths. Style 445-

BD sizes range from 1" to 20" diameter. (See Table 5)

• Style 445-E:

Features five convolutions, and is engineered with T-band compression limiters,

limit cables (meets MIL-W-8342), and face-to-face lengths to be an exact equal to other more

expensive, competitor models. Style 445-E sizes range from 1" to 6" diameter. (See Table 6)

• Style 440-BE:

Features Styles’ 440-E Neutral Lengths with Styles’ 440-BD Limit Bolts.

(See Table 7)

Absorbs Pipe-Wall and Fluid-Borne Noise.

The quiet operating PROCO Series 440 PTFE ex-

pansion joints are a replacement for “sound transmitting” metallic/lap joints. Pipe Wall sound

loses energy and is absorbed as the noise carried by the piping enters and exits the PTFE

section. Fluid-borne noise is absorbed by the volumetric expansion (breathing of the connec-

tor). This action cushions water hammer and smoothes out pumping impulses.

Isolates Vibration and Motion.

PROCO Series 440 PTFE expansion joints should be installed

immediately after and ahead of equipment generating vibration in order to isolate the rotat-

ing/vibrating equipment from the rest of the piping system. For optimum performance, the

PROCO Series 440 PTFE expansion joints should be installed horizontally to the shaft. Verti-

cal and perpendicular installations are also acceptable as these expansion joints will accept

axial, lateral and angular movements as well as vibration. Note: For maximum vibration trans-

mission reduction, the pipe section beyond the PTFE expansion joints must be anchored or

sufficiently rigid.

Reduces System Stress and Strain.

Rigid attachment of piping to critical or mechanical equip-

ment can produce excessive loading. Thermal or mechanically created strain-stress-shock are

cushioned and absorbed with the installation of a flexible, low spring rate, PROCO Series 440

PTFE expansion joint. The PROCO Series 440 PTFE expansion joint adds a flexible component

to the system that automatically self-corrects for misalignment created by structural move-

ments caused by settling, pipe expansion or ground shifts.

Tested Force Pound and Spring Rate Tables.

At PROCO we have machine tested nearly every

size of the Series 440 PTFE expansion joints for Axial and Lateral Spring Rates and have pro-

vided Thrust/Force factors so designers can properly design system restraints. It should be

noted that the PROCO Series 440 PTFE expansion joints are in accordance with the performance

characteristics of the Fluid Sealing Association’s Non-Metallic Expansion Joint Division.

Superior “Flex Life” and Strength.

The PROCO Series 440 PTFE expansion joints are contour

molded from extruded tubing providing superior “Flex Life” and Strength. Utilizing TEFLON®

T-62 resins from DuPont, the PROCO Series 440 PTFE expansion joints provide dramatically

more cycle life than that of PFA or FEP.

Flange and Limit Bolts/Cables.

All PROCO Series 440 PTFE expansion joint flange configura-

tions are coated with a rust inhibitive primer to prevent corrosion and are dimensionally tapped

to ANSI 125/150# Standards. Hole drilling on center line, other drilling standards, or other

flange materials, such as 316 stainless, 304 stainless, or Epoxy Coated flanges are available on

special order. In addition, all PROCO Series 440 PTFE expansion joints are supplied with fac-

tory set limit bolts or cables to prevent over-extension during operation.

Chemical Service Capability at Minimal Cost.

Expensive, exotic metal, PTFE or FEP lined

rubber expansion joints for severe chemical service can be replaced with the low cost PROCO

Series 440 PTFE expansion joints. The PTFE bellows are van stoned to the flanges which al-

lows all wetted surfaces to come in contact with only the PTFE material. Specify the PROCO

Series 440 PTFE expansion joints where high temperatures coupled with lower pressures or

lower temperatures coupled with higher pressures are proposed. The PROCO Series 440 PTFE

offers the lowest cost expansion joint that is impervious to chemical attack. Use the PROCO

“Chemical to Elastomer Guide” for reference on chemical compatibility.

Services and Locations.

PROCO Series 440 PTFE Expansion Joints have been supplied and

successfully used by a range of customers worldwide in the process industries for use in

both organic and inorganic chemical processing and production, including such demanding

applications as agrochemical and pharmaceutical chemical production, acid processing and

food manufacture.

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.

Protecting Piping And Equipment

Systems From Stress/Motion

Rev. 1 4/05