Page 31 - ExpansionJointsCatalog2010

molded wide arch expansion joints

261R

SERIES

Protecting Piping And

Equipment Systems

From Stress/Motion

The PROCO Series 261R Wide Arch Expansion Joint expansion joint is specifi-

cally designed for use with Plastic or FRP Piping Systems. A replacement for

standard spool-type expansion joints, the PROCO 261R has the lowest spring

rate offered in the world today. With its low forces to compress, extend or later-

ally offset, the PROCO Series 261R can be used on plastic or FRP pipes, pumps,

valves or tanks without fear of the expansion joint being stronger than the pipe,

pump, valve or tank flanges. In addition the PROCO Series 261R is designed for

tough demanding corrosive chemical applications, as found in: Chemical & Pet-

rochemical Process Facilities and Highly Corrosive Industrial Piping & Pollu-

tion Control Systems. The PROCO Series 261R may be used where metallic

hoses/expansion joints or old design rubber expansion joints may have been

specified previously. Used on Pumps, Chillers, Cooling Towers, Compressors,

Blowers, Fans, Absorption Machines, etc. 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 expansion joints

dates back to 1930. When you need an engineered rubber expansion joint solu-

tion to a piping problem, call PROCO.

PROCO Series 261R Wide Arch Rubber Expansion Joints offer some of the fol-

lowing advantages:

• Low Spring Rates:

The Series 261R has the lowest spring rates and forces

to deflect of any expansion joint made today.

• Greater Movements:

The Series 261R has a wider arch than the conven-

tional narrow arch of the spool-type expansion joint. This arch is twice the

standard width of the spool-type arch, thus, eliminating the need for double

and triple arch expansion joints.

• Less Weight:

The steel flanges of spherical design (Series 240/242) can be

very heavy, especially for plastic or fiberglass piping applications. The Series

261R Expansion Joint, including retaining rings, is considerably lighter than the

spherical expansion joint design, which lowers shipping and installation costs.

• Easier Sealing:

The Series 261R design utilizes the full-faced rubber and

fabric flange of the spool-type design making sealing quick and sure when

compared with the spherical design.

• Self-Cleaning Wide Arch:

The Arch of the Series 261R is wide enough to

allow the normal flow of the media to keep the arch clean of particulates. The

accumulation of particles in the arch associated with the narrow arch spool-

type design is not a consideration with the Wide Arch configuration.

• Looks Familiar:

It looks like the familiar design of the spool-type expansion

joint. This long proven design adds to the comfort of the Series 261R.

Flange Drilling/Retaining Rings.

All PROCO Series 261R Wide Arch Expansion

Joints are drilled in accordance with ANSI 125/150# Standards. They must be

installed against a Full-Face Flange with the unique Backing/Retaining Rings that

are supplied with the joint. Rings are fabricated from plate steel; plated to prevent

corrosion. Rings from materials such as 304 or 316 Stainless Steel are available

upon request. Gaskets or packing are not required with the PROCO Series 261R.

Visit our Web site for specific mating flange guidelines.

High Pressure with Full Safety Factors.

The PROCO Series 261R pressure ratings

meet or exceed the requirements of the Fluid Sealing Association, Non-Metallic

Expansion Joint Division for Series A or C. Sizes 1.5" through 12" include a three-

to-one safety factor; sizes 14" through 20" include a four-to-one safety factor.

Absorbs Pipe-Wall and Fluid-Borne Noise.

The noise transmission problems of

metallic expansion joints are eliminated with the Series 261R Expansion Joints.

Pipe-Wall sound loses energy and is absorbed as the noise carried by the piping

both enters and leaves the rubber section. Fluid-Borne noise is absorbed by the

volumetric expansion (breathing) of the expansion joint. This action cushions wa-

ter hammer and smooths pumping impulses.

Isolates Vibration and Motion.

Vibration originating from mechanical equipment

is absorbed by the PROCO Series 261R. To isolate the equipment, rubber connec-

tors should be installed just before and after the equipment generating the vibra-

tion. As most machinery vibrates in a radial direction from the main shaft, for

optimum performance the PROCO connector should be installed horizontally and

parallel to the shaft. Vertical and perpendicular installation of the Series 261R Wide

Arch Expansion Joint is permissible as it will accept axial, lateral and rotational

movements simultaneously. Installation of the Series 261R in a system allows

isolated equipment to move freely on its vibration mountings.

Note: For maximum

vibration transmission reduction, the piping section beyond the rubber connec-

tor must be anchored or rigid.

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 holi-

days … 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.

Notes: Hypalon

®

is a registered trademark of DuPont Dow Elastomers.

All products are reinforced with tire cord and metal materials.

1. Expansion joint "cover" can be coated with Hypalon

®

on special order.

2. Styles with Neoprene covers meet all requirements of U.S.C.G.

3. EPDM and Nitrile materials are available from Stock.

All other elastomers are available upon request.

Table 1: Available Styles • Materials • Temperatures

PROCO Style

Numbers

For Specific Elastomer

Recommendations, See:

PROCO

™

“Chemical To Elastomer Guide”

Single Arch

Cover

1, 2

Elastomer

Maximum

Operating

Temp.

°

F (

°

C)

Branding

Label

Color

F.S.A.

Material

Class

Tube

Elastomer

261R/BB

Chlorobutyl

250

°

(121

°

)

Black

STD. III

261R/EE

3

EPDM

EPDM 250

°

(121

°

)

Red

STD. III

261R/NH

Neoprene

Hypalon

®

212

°

(100

°

)

Green STD. II

261R/NN

Neoprene

Neoprene 225

°

(107

°

)

Blue

STD. II

261R/NP

3

Neoprene

Nitrile

225

°

(107

°

)

Yellow STD. II

261R/NR

Neoprene

Natural

180

°

(68

°

)

White

STD. I