Smith Fibercast CENTRICAST CL-1520 Piping

CENTRICASTCL-1520

Piping Systems

Bulletin No. A1480October 15, 2003

PRODUCTCENTRICAST CL-1520 pipe is

manufactured with high-strength glassfabrics and a highly resilient formula-tion of corrosion resistant vinyl esterresin. An inner liner of 50 mils of 100%pure resin provides excellent corrosionresistance. It is recommended for mosthighly chlorinated or acidic mixtures upto 175F and many other chemicalsup to 200F. Pipe and fittings are avail-able in 112" through 14" diameters withstatic pressure ratings up to 150 psig, withhigher pressure ratings in smaller sizes.CENTRICAST CL-1520 pipe comes in 20nominal or exact lengths.

EXTERNAL BARRIER

CL-1520 has a resin-rich corro-sion barrier on the outside surfacewhich provides superior resistanceto exterior corrosion. CL-1520 also con-tains a UV inhibitor for protectionagainst fiber blooming caused by

ultraviolet radiation. Smith Fibercastwarrants CENTRICAST CL-1520 pipe andfittings against reduction of physical andcorrosion ratings due to ultravioletexposure for a period of 15 years.

FITTINGSCompatible vinyl ester fittings are

manufactured with the same chemical/temperature capabilities as the pipe.Depending on the particular part and size,fittings will be compression molded,contact molded, filament wound, orhand fabricated.

JOINING METHODSA socket joining system connec-

tion is available for easy field assembly.Fittings are equipped with consistent,predetermined socket dimensions andpositive landing areas for the mating pipeends. Only thorough sanding of the pipeO.D. and the mating fittings socket isrequired prior to applying adhesive.Adhesive joints are assembled using apatented, high strength adhesive withthe same chemical and temperaturecapabilities as the pipe and fittings.

FIELD JOININGCL-1520 pipes easy-to-fabricate

joining system provides user friend-ly field fabrication with standardcontractor hand tools. The positivestops in the fittings allow easy fabri-cation of complex pipe spools whereclose tolerances are required. SeeManual No. F6080, Pipe InstallationHandbook, for installation instructionsand proper fabrication for your par-ticular application.

RECOMMENDED SERVICESCENTRICAST CL-1520 vinyl ester

resin pipe is excellent for many chem-ical and slurry applications includingstrong acids, chlorine and oxidizingagents that corrode traditional metal pipe.

Refer to Chemical Resistance Guide,Manual No. E5615 for proper applica-tion.

BENEFITSThe excellent chemical resistance

of CL-1520 fiberglass reinforced pipemeans a longer service life than pipemade of traditional materials, especiallyin acids and mixtures of chemicals.The longer life means a reduction inmaintenance and replacement costs.

Compared to metallic piping sys-tems, CL-1520 pipe can be installedeasier and faster, and heavy equipmentis seldom required. A considerablesavings on total installed cost may beachieved because less labor and aux-iliary equipment is required.

CL-1520 pipe offers the advantageof light weight. For example, 4" CL-1520 pipe weighs 1.70 lbs. per ft.compared to 10.79 lbs. per ft. for 4"Schedule 40 stainless. Therefore, a20 ft. length of CL-1520 pipe weighsonly 34 lbs. while the same length ofSchedule 40 weighs 216 lbs. or sixtimes the weight of CL-1520 pipe.

DISTRIBUTIONSmith Fibercast has a network of

stocking distributors across the U.S.as well as representatives and dis-tributors in many other parts of theworld. These distributors are sup-ported by a staff of experienced tech-nical personnel at the home offices andby highly trained, strategically locat-ed field personnel.

CENTRICAST CL-1520 Pipe

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Nominal NominalPipe Nominal Nominal Wall Reinforcement NominalSize I.D. O.D. Thickness Thickness Weight Capacity(In.) (In.) (mm) (In.) (mm) (In.) (mm) (In.) (mm) (Lbs./Ft.) (kg/m) (Gal./Ft.) (Cu. Ft./Ft.)

112 1.52 38.6 1.90 48.3 0.19 4.8 0.13 3.3 0.67 1.00 0.09 0.0132 2.00 50.7 2.38 60.3 0.19 4.8 0.13 3.3 0.86 1.28 0.16 0.0223 3.12 79.2 3.50 88.9 0.19 4.8 0.13 3.3 1.30 1.94 0.40 0.0534 4.12 105.0 4.50 114.0 0.19 4.8 0.13 3.3 1.70 2.53 0.69 0.0936 6.21 158.0 6.63 168.0 0.21 5.3 0.15 3.8 2.79 4.16 1.57 0.2108 8.15 207.0 8.63 219.0 0.24 6.1 0.18 4.6 4.17 6.21 2.71 0.362

10 10.3 261.0 10.75 273.0 0.24 6.1 0.18 4.6 5.23 7.78 4.30 0.57512 12.3 312.0 12.75 324.0 0.24 6.1 0.18 4.6 6.23 9.26 6.14 0.82114 13.5 343.0 14.00 356.0 0.24 6.1 0.18 4.6 6.85 10.19 7.46 0.997

General Specifications and Dimensional Data*


PIPE PROPERTIES

* All values are nominal. Tolerances or maximum/minimum limits can be obtained from Smith Fibercast.

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Pressure Ratings for Uninsulated Piping Systems (1)(2)

Pipe Lengths Available

(1) Static pressure ratings, typically created with use of a gear pump, tur-bine pump, centrifugal pump, or multiplex pump having 4 or morepistons, or elevation head.

(2) Reduce pressure ratings by 30% for 175 to 200F operating tempera-tures. For compressible gasses, insulated and/or heat traced piping sys-tems, consult the factory for pressure ratings. CENTRICAST CL-1520pipe and vinyl ester fittings can be used in drainage and vent systemsup to 200F. Heat cured adhesive joints are highly recommended forall piping systems carrying fluids at temperatures above 120F.

(3) Socket elbows, tees, reducers, couplings, flanges and nipples joinedwith WELDFAST CL-200 adhesive.

(4) Flanged elbows, tees, reducers, couplings and nipples assembled at factory.(5) Laterals, crosses, saddles and grooved nipples.(6) Ratings shown are 50% of ultimate. 14.7 psi external pressure is equal

to full vacuum.NA = Not available at time of printing.

* Pipe is offered in random orexact lengths. Random lengthsare from 15.0 to 20.4 feet long.

Nominal Max. Internal Pressure @ 175F (psig) Maximum External Pressure(6)

Pipe Socket Flanged Other

Size Pressure Pressure Pressure

(In.) Fittings(3) Fittings(4) Fittings(5) @ 75F @150F @ 175F

112 300 300 NA 650 579 4912 275 200 125 380 268 2273 200 150 125 130 74 634 150 150 100 50 33 286 150 150 100 30 21 178 150 150 100 25 17 14

10 150 150 75 16 13 1112 150 150 75 10 8 714 125 150 NA 7 5 4

112 - 4 RTRP-22BT-4556

6 RTRP-22BT-4555

8 RTRP-22BT-4554

10 - 12 RTRP-22BT-4553

14 RTRP-22BT-4552

ASTM D2997 Designation Codes:

Mechanical properties cellclassifications shown areminimum. Actual classifica-tions may be higher for somesizes.

Size(In.) Length (Ft.)

112 - 14 20*

Average Physical Properties(1)


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(1) Stress and modulus values can be interpolated between temperatures shown. Consult the factory for Modulus of Elasticity values between 175F and 200F.

Size Reinforcement Reinforcement Reinforcement Total Wall(In.) End Area (In.2) Moment of Inertia (In.4) Section Modulus (In.3) End Area (In.2)

112 0.72 0.29 0.30 1.022 0.92 0.58 0.49 1.303 1.38 1.96 1.12 1.984 1.79 4.26 1.90 2.576 3.05 16.00 4.83 4.238 4.78 42.60 9.88 6.32

10 5.98 83.50 15.50 7.9212 7.11 140.00 22.00 9.4314 7.82 187.00 26.70 10.40

Properties of Pipe Sections Based onMinimum Reinforced Walls

Nominal Size Nominal Size Nominal SizeProperty @ 75 F/ @ 24 C @ 150 F/ @ 66 C @ 175 F/ @ 80 C

psi MPa psi MPa psi MPa

Axial Tensile ASTM D2105Ultimate Stress 30,000 210 26,000 180 25,000 170Design Stress 7,500 52 6,500 45 6,250 43Modulus of Elasticity 2.6E+06 17900 2.3E+06 15900 2..2E+06 15200

Poissons Ratio 0.15 0.15 0.15

Axial Compression ASTM D695Ultimate Stress 32,000 220 30,000 200 22,000 150Design Stress 8,000 55 7,500 52 5,500 38Modulus of Elasticity 3.1E+06 21400 2.7E+06 18600 2.6E+06 17900

Beam Bending ASTM D2925Ultimate Stress 40,000 280 35,000 240 33,000 230Design Stress 5,000 34 4,375 30 4,125 28Modulus of Elasticity (long term) 3.3E+06 22800 2.9E+06 20000 2.8E+06 19300

Hydrostatic Burst ASTM D1599Ultimate Hoop Tensile Stress 30,000 200 26,000 180 25,000 170Hoop Tensile Modulus of Elasticity 2.4E+06 17000 2.1E+06 14500 2.0E+06 13800

Hydrostatic Design ASTM D2992,Procedure B Hoop Tensile Stress

Static 50 Year @ 175F 11,690 81

Coefficient of Linear Thermal Expansion Non-Insulated Pipe: 8.4 x 10-6 in./in./F 15.2x10-6 mm/mmC ASTM D696 Insulated Pipe: 9.2 x 10-6 in./in./F 16.6x10-6 mm/mmC

Thermal Conductivity 0.07 BTU/(ft)(hr)(F) 0.04 W/(m)(C)

Specific Gravity (Density) 152 (0.055 Lb/in.3) (1.52 g/cm3)

Hazen-Williams Flow Factor C-150

Surface Roughness 1.7 x 10-5 Feet

Mannings n 0.009


Recommended Operating Ratings(1)

Axial Bending Torque Parallel Plate Loading(3)Tensile Loads Radius Max. @ 5% Deflection & 75FMax. (Lbs.) Max. (Lbs.)(2) Min. (Ft.) (Ft.Lbs.) ASTM D2412

Size Entire Entire Stiffness Pipe Hoop(In.) @ @ @ @ Temp. Temp. Factor Stiffness Modulus

75 F 175F(1) 75 F 175F(1)(2) Range Range In.3Lbs./In.2 (psi) x 106 (psi)

112 5,400 4,500 5,800 4,000 52 125 366 3,545 2.0

2 6,900 5,700 7,300 5,000 65 203 366 1,738 2.0

3 10,300 8,600 11,000 7,600 96 466 458 642 2.5

4 13,400 11,200 14,300 9,800 124 790 458 294 2.5

6 22,900 19,100 24,400 16,800 182 2,013 788 156 2.8

8 35,800 29,800 38,200 26,300 237 4,115 1,264 113 2.6

10 44,800 37,400 47,800 32,900 296 6,473 1,458 66 3.0

12 53,300 44,400 56,900 39,100 351 9,178 1,652 45 3.4

14 58,600 48,800 62,500 43,000 385 11,108 1,652 34 3.4

(1) Consult the factory for design recommendations above 175F.

(2) Compressive loads are for short columns only. Buckling loadsmust be calculated when applicable.

(3) Burial calculations must be based on 5% deflection as shown intable above.

Axial CompressiveLoads

The following engineering analysis must be performed todetermine the maximum support spacing for the piping sys-tem. Proper pipe support spacing depends on the tempera-ture and weight of the fluid carried in the pipe. The supportspacing is calculated using continuous beam equations andthe pipe bending modulus derived from long-term beambending tests. The following tables were developed to ensurea design that limits beam mid-span deflection to 12 inch andbending stresses to less than or equal to 1/8 of the ultimatebending stress. Any additional weight on the piping systemsuch as insulation or heat tracing requires further considera-tion. Restrained (anchored) piping systems operating at ele-vated temperatures often result in guide spacing require-ments that are more stringent than simple unrestrained pip-ing systems. In this case, the maximum guide spacing willdictate the support/guide spacing requirements for the sys-tem. Pipe support spans at changes in direction require spe-cial attention. Supported and unsupported fittings atchanges in direction are considered in the following tablesand must be followed to properly design the piping system.

There are six basic rules to follow when designing pipingsystem supports, anchors, and guides:

1 Do not exceed the recommended support span.2 Support valves and heavy in-line equipment independ-

ently . This applies to both vertical and horizontal pip-ing.

3 Protect pipe from external abrasion.

4 Avoid point contact loads.5 Avoid excessive bending. This applies to handling, trans-

porting, initial layout, and final installed position.6 Avoid excessive vertical run loading. Vertical loads

should be supported sufficiently to minimize bendingstresses at outlets or changes in direction.

SUPPORTS

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Maximum Support Spacingfor Uninsulated Pipe*

Continuous Spans of Pipe (Ft.)Specific Gravity=1.0, Deflection=12

Nom. TemperaturePipe Size

(In.) 75F 150F 175F

112 16.4 15.8 15.72 17.6 17.0 16.93 19.9 19.2 19.14 21.4 20.7 20.56 24.7 23.9 23.78 27.7 26.8 26.510 29.4 28.5 28.212 30.8 29.8 29.514 31.6 30.6 30.3

* Consult factory for spans above 175F or for insulated pipesupport spacing.


THERMAL EXPANSIONTo determine the effects of expansion and contraction

within a piping system, it is necessary to know the following:

1. The design temperature conditions,2. The type and size of pipe,3. The layout of the system, including dimensions and the

thermal movements, if any, of the terminal points.4. The limitations on end reactions at terminal points as

established by equipment manufacturers.5. The temperature changes for expansion are calculated by

subtracting the installation temperature (temperature attime of final tie in) from the maximum design tempera-ture. Temperature changes for contraction are calculatedby subtracting the minimum design temperature fromthe installation temperature.

Expansion and contraction of above ground fiberglasspipe may be handled by several different methods.

Four methods are as follows:

Guides, mechanical expansion joints, and expansionloops are installed in straight pipe lines that are anchored atboth ends.

The experience of users of Smith Fibercast piping systemshas shown that if direction changes cannot be used toaccommodate thermal expansion and contraction, thenguide spacing is usually the most economical method.

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1. Direction Changes2. Restrained End

Installation

3. Mechanical Expansion Joints4. Expansion Loops

SpecificGravity 3.00 2.00 1.50 1.25 1.00 0.75 Gas/Air

Multiplier 0.76 0.84 0.90 0.95 1.00 1.07 1.40

Support Spacing vs. Specific Gravity

Example: 6 pipe @ 150F with 1.5 specific gravity fluid, maximum support spacing = 22.5 x 0.9 = 20.2 ft.

Piping Span Adjustment FactorsWith Unsupported Fitting at Change in Direction

Span Type Factor

a Continuous interior or fixed end spans 1.00

b Second span from simple supported 0.80end or unsupported fitting

c + d Sum of unsupported spans at fitting < 0.75*

e Simple supported end span 0.67

Piping Span Adjustment FactorsWith Supported Fitting at Change inDirection

Type of Span Adjustment Factor

a Continuous interior or fixed end spans 1.00

b Span at supported fitting or span adjacent 0.80to a simple supported end

e Simple supported end span 0.67

a

a

a

b

c d

b

a

b a

a

a

a

b b

a

ab

*For example: If continuous support span is 10 ft., c + d must notexceed 7.5 ft. (c = 3 ft. and d = 4.5 ft. would satisfy this condition).

e

e


Expansion Loop Minimum Leg Length (Feet)

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Nominal End Nominal EndPipe Size Loads Pipe Size Loads

(in) (Lbs./F) (in) (Lbs./F)

112 18.8 8 124.4

2 23.9 10 155.6

3 35.8 12 185.1

4 46.5 14 203.5

6 79.5

Restrained Thermal ExpansionPipe Compressive End LoadsUninsulated Pipe(1)

Unrestrained Thermal ExpansionUninsulated Pipe(1)

Change in Pipe ChangeTemperature in Length

(F) (In./100 Ft.)

25 0.2550 0.5075 0.76

100 1.01125 1.26150 1.51175 1.76200 2.02

(1) Consult the factory for thermal expansion andcompressive end loads of insulated pipe.

Nominal Allowable Nominal AllowablePipe Size Moment Pipe Size Moment

(in) (FtLbs.) (in) (FtLbs.)

112 150 8 2,850

2 225 10 4,500

3 475 12 6,500

4 650 14 10,000

6 1,650

AllowableBending Moment90 Elbow

NominalPipe Size Temperature Change F*

(In.) 25 50 75 100 125 150 175 200

112 10.8 7.6 6.2 5.4 4.8 4.4 4.1 3.8

2 13.7 9.7 7.9 6.8 6.1 5.6 5.2 4.8

3 20.5 14.5 11.8 10.2 9.2 8.4 7.7 7.2

4 26.5 18.8 15.3 13.3 11.9 10.8 10.0 9.4

6 39.3 27.8 22.7 19.7 17.6 16.1 14.9 13.9

8 51.3 36.3 29.6 25.6 22.9 20.9 19.4 18.1

10 64.2 45.4 37.1 32.1 28.7 26.2 24.3 22.7

12 76.3 54.0 44.1 38.2 34.1 31.2 28.8 27.0

14 83.9 59.3 48.4 41.9 37.5 34.3 31.7 29.7

Maximum Guide Spacing for Restrained Thermal End Loads (Feet)

*Note: Temperature Change = Maximum Fluid Temperature - Installation Temperature.

Total Deflection to be Absorbed (inches)

Size (In.) 1/2 1 2 3 4 5 6 7 8 9 10

112 2.6 3.6 5.1 6.3 7.2 8.1 8.9 9.6 10.2 10.8 11.42 2.9 4.0 5.7 7.0 8.1 9.0 9.9 10.7 11.4 12.1 12.83 3.5 4.9 6.9 8.5 9.8 11.0 12.0 13.0 13.9 14.7 15.54 4.3 6.1 8.7 10.6 12.3 13.7 15.0 16.2 17.3 18.4 19.46 5.3 7.5 10.5 12.9 14.9 16.7 18.3 19.7 21.1 22.4 23.68 6.5 9.3 13.1 16.0 18.5 20.7 22.7 24.5 26.2 27.8 29.310 7.3 10.3 14.6 17.9 20.6 23.1 25.3 27.3 29.2 30.9 32.612 7.9 11.1 15.7 19.3 22.3 24.9 27.3 29.4 31.5 33.4 35.214 7.3 10.3 14.6 17.9 20.7 23.1 25.3 27.4 29.2 31.0 32.7

Note: Multiply expansion loop minimum leg length by 1.414 for directional change contilever leg length.

P.O. Box 968 25 South Main Sand Springs, OK 74063(800) 331-4406 or (918) 245-6651 Fax: (Local/International) (918) 245-7566 Fax: (800) 365-7473

2700 West 65th Street Little Rock, AR 72209(501) 568-4010 Fax: (501) 568-4465

http://www.smithfibercast.com

Fluid (Water) HammerWhen flow suddenly starts or stops, by pump startup or by

a quick closing valve, a high pressure surge can be created.

The maximum pressure surge in psig caused by water ham-mer can be calculated by multiplying the fluid velocity inft./sec. times the constant listed in this table. The instantaneouspeak pressure for the system will equal the water hammer surgeplus the pressure in the system at the time the water hammeroccurred.

Fluid hammer high pressure surge can be significantlyreduced by controlling pump startup and valve closurerates.


and Trademarks of Varco I/P Inc. Copyright 2003, Varco L.P.

TESTING

OTHER CONSIDERATIONS

See Section 3 of Smith Fibercast Manual No. F6080, PipeInstallation Handbook: Hydrostatic Testing and System StartUp.

Whenever possible, Smith Fibercast piping systemsshould be hydrostatically tested prior to being put intoservice. Care should be taken when testing, as in actual

installation, to avoid water hammer. All anchors, guidesand supports must be in place prior to testing the line.

Test pressure should not be more than 112 times theworking pressure of the piping system and never exceed 112times the rated operating pressure of the lowest rated com-ponent in the system.

(1) Constantsare valid forwater at 75F.

It is the policy of Smith Fibercast to improve its products continually. In accordance with that policy, the right isreserved to make changes in specifications, descriptions, and illustrative material contained in this bulletin as condi-tions warrant. The information contained herein is general in nature and is not intended to express any warranty ofany type whatsoever, nor shall any be implied.

Nominal Nominal Pipe Size Pipe Size

(in) Constants (in) Constants

112 40.5 8 24.6

2 37.2 10 22.3

3 31.8 12 20.6

4 28.5 14 19.7

6 25.6

PRINTED IN USA, 5M, 1003

Fluid (Water) HammerConstants(1)

Documents

Smith Fibercast CENTRICAST CL-1520 Piping