Presented by: Thermoplastic Piping

Transcription

1 Presented by: Thermoplastic Piping

2 VARI-TECH is an acronym for VARIOUS TECHNOLOGIES. The original thrust of the company was to bring engineered products and services to the Northeastern United States market. In 2004, Emco Corporation acquired VARI- TECH. Our purpose has now spread across the North American continent and includes our export partners. Our technical sales people include Civil Engineers, Mechanical Engineers and Construction Engineers, as well as general technical specialists. All of our engineers are trained in business and project management in order to best serve our customer partners. We also have Professional Engineers on staff. VARI-TECH works with Consultant Engineers from product suitability to construction details. Our educated corporate inside staff work with procurement and contractor estimators in bid preparation and product specification compliance. Start-up installation is standard on every project.

3 Piping Systems exist to deliver fluids (Potable water, Glycol, etc.) from its source to its end user. Ideally the fluid should be unchanged by the pipe, and the pipe should be unchanged by the fluid.

4 FLUID EFFECTS ON PIPES Corrosion Chemical Attacks Chlorine Low PH Abrasion Water velocity Particles Scaling

5 PIPE EFFECT ON WATER Microbiological Growth Food Scale Bonding Material Energy Light Abrasion

6 IF YOU COULD ENGINEER THE PERFECT PIPE it would be Corrosion Resistant Scaling Resistant Chemically Resistant Inert to water Environmentally friendly Clean & Light Weight Quick & Easy to Install Non-leak connection Favorably Priced Support biological growth Expand excessively Conduct heat Require solder or glue Conduct or generate noise Have high friction Be easily damaged Have weak links at the fittings

7 DOMESTIC CODE APPROVALS What are you designing for? ASTM F714 (fusion joined) ASTM F894 (tested, leak proof gasketed joint) NSF Standard 61 (suitable for potable water) NSF Standard 14 (meets performance requirements) NSF Standard 51 (suitable for food processing) ICC ESR valuation report(meets or exceeds standards) IPC 2009 sec 605 (water distribution & services) DIN EN ISO 9001 (quality management requirements) IMC 2009 Chapter 12 (hydronic applications) IRC 2009 Chapter 21 & 26 (hydronic & plumbing) UMC 2009 Chapter 12 (hydronic piping) UPC 2012 Chapter 6 (water distribution & building supply) Army Corps of Engineers UFGS # Domestic certified quality Various national independent authorities and institutions confirm Aquatherm s quality standards.

8 DOMESTIC CODE APPROVALS Some PP-R materials are manufactured to all of the following: ASTM F2389 (meets standard pressure rates) CSA B (meets pressure applications) CSA B214 (pipe and fittings for hydronic applications) BNQ (meets safety standards for drinking water) ISO (meets requirements for hot & cold water installations) ASTM F2023 (meets requirements for oxidative resistance to hot chlorinated water) ASTM D 635 (meets burn time requirements) FM 1635 (for wet pipe automatic sprinkler systems in light-hazard occupancies) NFPA 13D (standard for the installation of sprinkler systems in one-and two-family dwellings and manufactured homes) LDS Specifications for Chapel Construction ( ) Listed in Master Specifications Domestic certified quality Various national independent authorities and institutions confirm Aquatherm s quality standards.

9 PREFERRED PIPING MATERIALS HDPE and PP-R are cost-effective, environmentally friendly, high performance and more efficient alternatives to ductile iron, steel, copper and fiberglass pipe. Leak-proof connections are assembled through fusion welding process. Joining method requires no additives such as solvents, glues or solder Bell x spigot joints are leak tight and meet F894 Smooth interior walls resist corrosion and collection of sediment Environmentally friendly and 100% recyclable, with no harmful waste products Well established US providers of support and product inventories Thermoplastic selection dependent on appropriate temperatures and pressures

10 PIPE VARIATIONS Pipe application may be shown using an indicator stripe on HDPE, or by resin color as shown with PP-R

11 EXPANSION FORCES Expansion rates: Steel - 1 /100 F/100 Copper /100 F/100 Plastics - 10 /100 F/100 PP-R Faser pipe - 2.5"/100 F/100 Above means little without pipe modulus: Steel - 27,000,000 PSI Copper 18,600,000 PSI HDPE 150,000 PSI PP-R 180,000 PSI While plastics have a higher expansion rate, they produce a manageable force that may be easily resisted.

12 WHAT ELSE DOES A LOW MODULUS PROVIDE? The flexibility of thermoplastics also allows for the elimination of many fittings and thrust blocking, as well as safer, out-of-the-trench joining. BENDING RADIUS (HDPE and PE-RT) DR 13.5 R=20 x pipe diameter DR > R=25 x pipe diameter DR > 21 R=30 x pipe diameter

13 PP-R FASER PIPE To increase maximum operating temperatures and overall performance, PP-R may include a Faser layer of glass rovings suspended in the PP-R resin. This material is extruded as the middle layer of the pipe, and allows the pipe to remain rigid at high temperatures without sacrificing any of the other benefits of the pipe. Faser Core Reduces thermal expansion by 75%

14 TEMPERATURES AND PRESSURES HDPE 4710 and PP-R (non-faser) appropriate uses through 140 F PP-R with Faser layer appropriate uses through 200 F PE-RT (High Temp HDPE) appropriate uses through 180 F Material selection will be dependent on the temperature and pressure, as well as chemical compatibility.

15 BURIED APPLICATIONS Thermoplastics such as HDPE and PP are capable of handling stress caused by expansion and contraction. Both are safe for direct buried applications in soil, sand or concrete, and are also well suited for directional boring. Their inherent strength and integrity of fused connections requires no thrust blocking. Care must be taken when joining to other materials.

16 HDD (DIRECTIONAL DRILLING) With their high tensile strength and flexibility, thermoplastics are extremely well suited to hydraulic directional drill applications.

17 FUSION Three methods of fusion: Butt fusion Socket fusion Electrofusion There are three components to heat fusion Time Heat Pressure

18 BUTT FUSION The principle of heat fusion Heating two surfaces to a designated temperature, and then fuse them together by application of force. This process develops pressure, causing flow of the melted materials, which causes mixing and fusion. When the thermoplastic pipe is heated, the molecular structure is transformed from a crystalline state into an amorphous condition. When fusion pressure is applied, the molecules from each pipe end mix. The result of heat fusion As the joint cools, the molecules return to their original form, the original interfaces are gone, and the two pipes have become one monolithic pipe.

19 BUTT FUSION (CONT) Clamping the Pipe The pipe pieces are held axially to allow all subsequent operations to take place. Facing the Pipe The pipe ends are faced to establish clean, parallel mating surfaces, perpendicular to the centerline of each pipe.

20 BUTT FUSION (CONT) Heating the Pipe The melt pattern, that penetrates into the pipe, must be formed around both pipe ends. Fusing the Pipe The melt patterns must be joined with a specified force. The force on the joint must be held until the joint cools.

21 ELECTROFUSION The main difference between conventional heat fusion and electrofusion is the method by which the heat is applied. The electrofusion joint is heated internally, either by a conductor at the interface of the joint or by a conductive polymer. Heat is created as an electric current is applied to the conductive material in the fitting. HDPE and PP-R pipe to pipe connections may be made using electrofusion couplings. There are also branch saddles, tapping tees, and a host of additional EF fittings available

22 ELECTROFUSION (CONT)

23 SOCKET FUSION The exterior of the pipe is heated concurrently with the inside of the fitting. When appropriate heat soak has passed, the fitting and pipe are removed from the heating plate and pushed together. Larger socket fusion may require machine assistance.

24 MINIMIZES LIABILITY Fusion results in a joint with no allowable leakage No weak links at fittings No bad crimps No working its way loose Abrasion resistant Highly chemical resistant

25 F894 BELL X SPIGOT OPTIONS Used in conjunction with culvert sliplining, water, wastewater, manhole, and other applications. May also employ an extrusion weld for increased sealing properties.

26 F894 PIPE JOINTS

27 GREEN ADVANTAGES From production and installation to consumer use and recycling, HDPE and PP-R piping systems are clean, sustainable, and environmentally friendly. Choosing a piping solution that works hard to protect our delicate world lets you take an active hand in securing a better tomorrow. Heat-fused or gasket connections require no solvents, cements or glues Free of PVC, plasticizer and chlorine Smooth interior walls resist corrosion and collection of sediment Opaque, so as not to promote microbiological growth in the pipe Safe for potable water and food-grade (PP-R) applications Recyclable can be ground, melted and reutilized for various applications

28 MODES OF FAILURE

29 MODES OF FAILURE

30 ADVANTAGES AND CHARACTERISTICS Competitively priced High impact resistance Environmentally sustainable Resistance against chemicals Smell and taste neutrality Light weight, easy to handle 100% recyclable Easy to install 100% corrosion resistant May be high heat stabilized Excellent welding properties Low flammability Less pipe friction High pressure air lines (faser) Quiet eliminates noise High abrasion resistance Peace Of Mind

31 IF YOU COULD ENGINEER THE PERFECT PIPE it would be Corrosion Resistant Scaling Resistant Chemically Resistant Inert to water Environmentally friendly Clean & Light Weight Quick & Easy to Install Non-leak connection Favorably Priced

32 QUESTIONS 1) What are the three fusion methods for joining HDPE and PP-R systems? 2) Name a common application for the use of HDPE or PP-R. 3) What are three criteria for selecting the correct thermoplastic material? 4) The material that includes a faser layer (glass fibers mixed with polypropylene resin) results in the following: a. Greater pressure ratings b. Can handle higher temperatures c. Reduces thermal expansion and contraction d. All of the above 5) Due to the lack of corrosion, stable ID and smooth wall characteristics for the life of the pipe, will remain stable for the life of the system.

33 ANSWERS 1) What are the three fusion methods for joining HDPE and PP-R systems? Answers: Butt fusion, Socket fusion, Electrofusion 2) Name a common application for the use of HDPE or PP-R pipe. Answers: water and waste water applications, hydronics, chilled or hot water, Grey or reclaimed water, compressed air, food grade process pipe, chemical lines, etc 3) What are three criteria for selecting the correct thermoplastic material? Answers: pressure, temperature and chemical compatibility 4) The material that includes a faser layer (glass fibers mixed with polypropylene resin) results in the following: a. Greater pressure ratings b. Can handle higher temperatures c. Reduces thermal expansion and contraction d. All of the above 5) Due to the lack of corrosion, stable ID and smooth wall characteristics for the life of the pipe, will remain stable for the life of the system. Answer: flow characteristics

34 THANK YOU