GF Sch80 PVC+CPVC Tech Manual

 

Schedule 80 PVC and CPVC Schedule 40 PVC Technical Manual

Piping Systems

 

Table of Contents Introduction: PVC and CPVC Piping Systems ............ ......................... .......................... .......................... .......................... .......................... ...................... ......... 4 Product Summary .......... ..................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ......................4 ...........4 Material Data .............................................................................................................................................................5-6 Engineering Data ............. .......................... .......................... .......................... .......................... .......................... .......................... .......................... .......................... .......................... ............. 7 Pressure Ratings ........... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... .................. ....... 7-9 Water Hammer .........................................................................................................................................................9-11

Temperature — Pressure Relationship .....................................................................................................................12 Thermal Expansion and Contraction ................................................................................................................... 13-17 Friction — Loss Characteristics ........... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ............. 1818-21 21 Installation Instructions ............. .......................... .......................... .......................... .......................... .......................... .......................... .......................... ......................... .............. 22 Storage and Handling .................................................................................................................................................22 Solvent Weldin Weldingg .......... ..................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... .................. ....... 22-27 Threading ........... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ................2 .....28-30 8-30 Flanging ........... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... .................. ....... 31 31-34 -34 Unions ........... ....................... ....................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................35 ........35-37 -37 Above Ground Installation .......... ..................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ............. 38-40 Sunlight and Plastics ...................................................................................................................................................40

Below Ground Installation .......... ..................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ............. 41 41-43 -43 Standards ............ ........................ ......................... .......................... .......................... .......................... .......................... .......................... .......................... .......................... ........................ ........... 44 ASTM ........... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ....................44-45 .........44-45 ASME/ANSI........... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ...................... ....................45 .........45 NSF/ANSI ......................................................................................................................................................................45 Specifications ............ ......................... .......................... .......................... .......................... .......................... ......................... ......................... .......................... ..........................46-48 .............46-48 IPS Socket Dimensions ............. .......................... .......................... .......................... .......................... .......................... ......................... ......................... .......................... ................ ... 49 Weld Lines in Molded Fittings .................. ............................... .......................... .......................... .......................... .......................... .......................... ......................... .............. 50 Useful Charts Chart s and Conversions Conver sions ............ ......................... .......................... .......................... .......................... ......................... ......................... ....................... .......... 51-53

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Introduction: Introdu ction: PVC and CPVC Piping Piping Systems Systems Product Summary Thermoplastics PVC (Polyvinyl Chloride) and CPVC (Chlorinated Polyvinyl Chloride) are light, flexible, tough and provide exceptional corrosion resistance. Because of these and other properties of a high quality engineered thermoplastic, the savings that can be realized in initial installation and continuing maintenance costs are substantial.

Temperature PVC can handle temperatures up to 140°F 140°F (60°C). CPVC handles temperatures up to 210°F (99°C).

Chemical Resistance PVC and CPVC thermoplastics are highly resistant to acids, alkalis, alcohols and many other corrosive materials. Both materials are ideal for process piping installation and most service piping applications applications.. For details, please consult our Chemical Resistance Chart or contact your local sales representative.

Maintenance Free Service PVC and CPVC thermoplastics thermoplastic s will not rust, scale, pit or corrode, nor are they subject to electrolysis. You are assured many years of leak-free, leak-free, maintenance-free service. For buried applications, PVC and CPVC are not affected by soil conditions or galvanic corrosion.. Painting is not required for indoor non-exposed non-expose d installations. For outdoor installation where the piping may be exposed to significant sunlight, we recommend painting; two coats of a white or light-colored, water-base, outdoor latex paint provides added protection.

Lower Installed Cost Both PVC and CPVC have installed costs substantially lower than steel alloys or lined steel and are usually more competitive than carbon steel. Solvent cemented connections contribute to this lower installed cost while the much lighter weight (about one-sixth as much as steel) speeds and simplifies handling during installation.

Applications: Versatility and Dependability PVC and CPVC fittings, pipe and valves have been found suitable for more than 50% of the corrosive and non-corrosive applications within the Chemical Process Industries. Vinyl piping systems have been sold into industrial applications for over over 50 years. years. The establishment of strong industry standards and specifications, plus a third party certification through NSF, provides the specifying engineer, contractor and end user with a tested and accepted piping system to solve their corrosion problems.

 

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Material Data Physical Properties of Rigid PVC and CPVC Thermoplastic Materials

The following table lists typical physical properties of PVC P VC and CPVC thermoplastic materials. Variations may exist depending on specific compounds and product. Mechanical Properties

Unit

PVC

CPVC

Specific Gravity Tensile Strength @ 73°F Modules of Elasticity Tensil Tensilee @ 73°F Compressive Strength @ 73°F Flexural Strength @ 73°F

g/cm3 PSI PSI PSI PSI

1.40 ± .02 7,200 430,000 9,500 13,000

1.51 ± .02 7,550 375,000 10,100 15,100

Izod Impact @ 73°F

Ft-Lbs/In of Notch Durometer “D” Rockwell “R”

1.0

6.3

80 ± 3 110-120

80 ± 3 119

Properties

Unit

PVC

CPVC

Coefficient of Thermal Linear Expansion per °F Thermal Conductivity Spec Sp ecifi ificc He Heat at

in/in/°F

2.8 x 10

3.4 x 10

BTU/hr/ft2/ F/in CAL/ L/g/ g/°C °C

1.3 0.20 0. 20-0 -0.2 .288

0.95

Maximum Operating Temperature

°F

140

210

Heat Distortion Te Temperature mperature @ 264 PSI Decomposition Point

°F

158

230

°F

400+

400+

Scorching by Carbonization and Dehydrochloration

Properties

Unit

PVC

CPVC

Remarks

Average Time of Burning Average Extent of Burning Flame Spread Index Flame Spread Flash Ignition Smoke Developed* Flammability (.062”)

sec. mm

Relative Hardness @ 73°F

Remarks

Same in Circumferential Direction Ratio of Stress on Bent Sample at Failure

ASTM Test

D-792 D-638 D-638 D-695 D-790

Tensile Stress/Strain on Bent Sample at Failure Impact Resistance of a Notched Sample to D-256 a Sharp Blow Equivalent to Aluminum D-2240 — D-785

Thermodynamics -5

Remarks

ASTM Test

D-696

-5

Average Specific Heat of 0-100°C Rat atio io of Th Theerm rmal al Ca Capa paci city ty to th thaat of Wat ater er at 15°C Pressure Rating is Directly Related to Temperature Thermal Vibration and Softening Occurs

C-177

D-648

Flammability

Softening Starts, approx. Material Become Viscous Material Carbonizes Limiting Oxygen Index (LOI)

 

°F

°F °F °F Vol. %