Engineering & Piping Design Guide - TS & M Supply

1 Engineering & Piping Design Reinforced Piping SystemsINTRODUCTION NOV Fiber Glass Systems fiberglass reinforced epoxy and vinyl ester resin Piping systems possess excellent corrosion resistance and a combination of mechanical and physical properties that offer many advantages over traditional Piping systems. We are recognized worldwide as a leading supplier of Piping systems for a wide range of chemical and industrial applications. This manual is provided as a reference resource for some of the specific properties of our Piping systems. It is not in-tended to be a substitute for sound Engineering practices as normally employed by professional Design engineers. NOV Fiber Glass Systems has an international network of distributors and trained field personnel to advise on proper installation techniques. It is recommended they be consulted for assistance when installing the Piping system.

2 This not only enhances the integrity of the Piping system, but also in-creases the efficiency and economy of the installation. Additional information regarding installation techniques is provided in the following installation manuals: Manual No. F6000 Pipe Installation Handbook for Tapered Bell & Spigot JointsManual No. F6080 Pipe Installation Handbook for Straight Socket Joints and Butt & Wrap JointsManual No. F6300 Pipe Installation Handbook for Marine-Offshore PipingGeneral Policy StatementSaFetyThis safety alert symbol indicates an important safety message. When you see this symbol, be alert to the possibility of personal SyStemS epoxy resin Systems: Z-Core (High Performance Resin) Centricast Plus RB-2530 Centricast RB-1520 Green Thread Marine-Offshore Green Thread 175 Green Thread 175 Conductive Green Thread 250 Green Thread 250 Conductive Green Thread 250 Fire Resistant Red Thread II Red Thread II JP Silver Streak (FGD Piping ) Ceram Core (Ceramic-lined Piping ) F-Chem (Custom Piping ) HIGH PRESSURE Line Pipe and Downhole Tubing*Vinyl ester Systems: Centricast Plus CL-2030 Centricast CL-1520 F-Chem (Custom Piping )* Available from NOV Fiber Glass Systems, San Antonio, Texas Phone: (210) 434-5043 FAX: (210) 434-7543 Web site.

3 Fiber Glass Systems has developed a computer pro-gram specifically for our fiberglass products. This software program called Success By Design is available on our web site at iiNational Oilwell Varco has produced this brochure for general information only, and it is not intended for Design purposes. Although every effort has been made to maintain the accuracy and reliability of its contents, National Oilwell Varco in no way assumes responsibility for liability for any loss, damage or injury resulting from the use of information and data herein nor is any warranty expressed or implied. Always cross-reference the bulletin date with the most current version listed at the web site noted in this .. iiPiping System Selection and Applications .. 1 Section 1 Flow Properties .. 2 Preliminary Pipe 2 Detailed Pipe Sizing A. Liquid Flow.

4 2 B. Loss in Pipe Fittings .. 4 C. Open Channel Flow .. 5 D. Gas Flow .. 5 Section 2 above Ground System Design Using Supports, anchors & Guides .. 7 Piping Support Design A. Support Design .. 7 B. Guide Design .. 8 C. Anchor Design .. 9 D. Piping Support Span Design .. 11 Section 3 temperature effects .. 12 System Design .. 12 Thermal Properties and Characteristics .. 12 Fundamental Thermal Analysis Formulas A. Thermal Expansion and Contraction .. 13 B. Anchor Restraint Load .. 13 C. Guide Spacing .. 13 Flexibility Analysis and Design A. Directional Change Design .. 13 B. Expansion Loop Design .. 14 C. Expansion Joint Design .. 14 D. Heat Tracing .. 15 E. Thermal Conductivity .. 16 F. Thermal Expansion in Buried Pipe .. 16 G. Pipe Torque due to Thermal Expansion .. 16 Section 4 Pipe Burial .. 17 Pipe 17 Burial Analysis A.

5 Soil Types .. 17 B. Soil Modulus .. 18 Trench Excavation and Preparation A. Trench Size .. 18 B. Trench Construction .. 18 C. Maximum Burial Depth .. 19 D. Roadway Crossing .. 19 Bedding and Backfill A. Trench Bottom .. 20 B. Backfill Materials .. 20 C. Backfill Cover .. 20 D. High water Table .. 20 Section 5 other considerations .. 21A. Abrasive Fluids .. 21B. Low Temperature Applications .. 21C. Pipe Passing Through Walls or Concrete Structures .. 21D. Pipe Bending .. 21E. Static Electricity .. 22F. Steam Cleaning .. 22G. Thrust Blocks .. 22H. Vacuum Service .. 22I. Valves .. 22J. Vibration .. 23K. Fluid ( water ) Hammer .. 23L. Ultraviolet ( ) Radiation and Weathering .. 23M. Fungal, Bacterial, and Rodent Resistance .. 23 Section 6 Specifications and approvals .. 24A. Compliance with National Specifications.

6 24B. Approvals, Listings, and Compliance with Regulations .. 24a PPenDiceSappendix a Useful Formulas .. 27appendix B 30liS t oF taBleSTable Typical Applications .. 1 Table Flow Resistance K Values for Fittings .. 4 Table Typical Liquid Properties .. 4 Table Typical Gas Properties .. 6 Table Minimum Support Width .. 7 Table Saddle Length .. 8 Table Recommended Bedding and Backfill .. 18 Table Nominal Trench Widths .. 18 Table ASTM D2310 Classification .. 24 Table Classifying Fiberglass Flanges to ASTM D4024 .. 25 Table Classifying Fiberglass Pipe Using ASTM D2310 and Specifying Pipe Using ASTM D2996 and D2997 .. 26taBleo F contentSiiiP i PinG Sy Stem Selection anD a PPlicationSPiPinG SyStem Selection When selecting a Piping system for a particular application, it is important to consider the corrosive characteristics of the media to which the pipe and fittings will be exposed, the normal and potential upset temperatures and pressures of the system, as well as other environmental factors associ-ated with the project.

7 Fiberglass reinforced plastic (FRP) Piping systems provide excellent corrosion resistance, com-bined with high temperature and pressure capabilities, all at a relatively low installed cost. NOV Fiber Glass Systems engineers, using epoxy, vinyl ester, and polyester resins, have developed a comprehensive array of Piping systems designed to meet the most demanding application require-ments. Piping systems are available with liners of varying type and thickness, with molded, fabricated, or filament wound fittings, ranging in size from 1" to 72"(25 to 1800 mm) in aPPlicationS Fiberglass Piping is used in most industries requiring cor-rosion resistant pipe. FRP Piping is used in vent and liq-uid applications that operate from -70 F to 300 F (-57 C to 149 C). NOV Fiber Glass Systems Piping systems use high grade resins that are resistant to acids, caustics or solvents.

8 Abrasion resistant materials can be used in the Piping inner surface liner to enhance wear resistance to slurries. Table is a brief list of the many applications and industries where fiberglass Piping has been used successfully. See Bulletin No. E5615 for a complete chemical resistance Piping systems can be installed in accordance with the ASME B Piping code. Second party listings from regu-latory authorities such as Factory Mutual, NSF, UL/ULC, and marine registrars are in place on several of these Piping typical Fiberglass Pipe applications by industry inDUStryapplications chemical Petro marine Pharma- Food Power Pulp and Waste water mining and Process chemical offshore ceutical Processing Plants Paper treatment metal refiningaeration X Brine Slurry X Bottom ash X chemical Feed X X X X X

9 X Xcolumn Piping X condensate return X X X X X X X conduit X X X X cooling water X X X X X Disposal Wells X X X X XDownholetubing& casing X X Xeffluent Drains X X X X X X X X XFire mains X X X X XFlue Gas Desulfurization XGuttering &Downspouts X X X Xoily water X X XScrubber Headers X X X Seawater X X X Slurry X X Vents X X X X X X X XWater X X X X X X X XWaste treatment X X X X X X X XBuried Gasoline X 12 The smooth interior surface of fiberglass pipe.

10 Combined with inside diameters larger than steel or thermoplastic pipe of the same nominal diameter, yield significant flow advantages. This section provides Design techniques for exploiting the flow capacity of fiberglass PiPe SizinGThe determination of the pipe size required to transport a given amount of fluid is the first step in designing a Piping recommended pipe fluidsEq. 1 Corrosive or erosive fluidsEq. 2 Where:d = Pipe inner diameter, inch Q = Flow rate, gal/min (gpm)Sg = Fluid specific gravity, dimensionlessp = Fluid density, lb/ft3recommended maximum fluid velocitiesClear fluidsEq. 3 Corrosive or erosive fluidsEq. 4 Where:V = velocity, ft/secp = fluid density, lb/ft3 Typical fiberglass Piping systems are operated at flow veloci-ties between 3 & 12 ft/sec. DetaileD PiPe SizinGa. liquid FlowFluid flow characteristics are very sensitive to the absolute roughness of the pipe inner sur-face.