Polypropylene Pressure Piping Technical Handbook Systems

1 Technical HandbookPolypropylene Pressure Piping Systems 3 Overview5 General Properties - PROGEF Standard, PROGEF Natural and PPro-Seal Polypropylene13 Specifications14 Pressure /TemperatureFiguresLong-term Stress (Fig. 1)Regression Curve (Fig. 2)Temperature/ Pressure Curve (Fig. 3)24242527 Dimensional Pipe Size - SDR vs. Schedule RatingTablesPipe Size Comparison (Table 1)2828 Calculating Pipe SizeFiguresHazen and Williams Formula (Fig. 4) TablesFlow-rate vs. Friction Loss - PROGEF Standard (Table 2)Flow-rate vs. Friction Loss - PROGEF Natural (Table 3)Flow-rate vs.

2 Friction Loss - PPro-Seal Natural (Table 4)Friction Loss through Fittings (Table 5)293031363840 Gravity Drain SystemsTablesGravity Drain (Table 6)4142 Surge Pressure (Water Hammer)FiguresPressure Wave (Fig. 5)4343 Expansion/ContractionFiguresModulus of Elasticity of Plastics (Fig. 6)TablesLength Change of Straight Pipe (Table 7)Length of Flexible Sections (Table 8)47475152 InstallationFiguresPadding of Pipe Work (Fig. 7)TablesPipe Bracket Intervals (Table 9)545557 Table of Contents 4 Mechanical ConnectionsFiguresGasket Dimension (Fig. 8)Pinch Test (Fig. 9)Gap Test (Fig.)

3 10)Alignment Test (Fig. 11)Flange Installation Tag (Fig. 12)Union Installation Tag (Fig. 13)TablesGasket Dimensions - Outside/Inside (Table 10)Fastener Specifications (Table 11)Multiple Pass Bolt Torque (Table 12)Tightening Guide for Union and Ball Valve Nuts (Table 13)Threaded Connection Guide (Table 14)586063646467716062667072 Infrared (IR) Butt Fusion73 Contact Butt Fusion76 Electrofusion83 5 OverviewGeneral InformationPolypropylene is a thermoplastic belonging to the polyolefin group. It is a semi-crystalline material. Its density is lower than that of other well-known thermoplastics.

4 Its mechanical characteristics, its chemical resistance , and especially its relatively high heat deflection temperature have made Polypropylene one of the most important materials used in Piping installations is formed by the polymerisation of propylene (C3H6) using Ziegler-Natta are three different types which are conventionally supplied for Piping installations: Isotactic PP Homopolymeride (PP-H) PP block co-polymeride (PP-B) PP random co-polymeride (PP-R).Because of its high internal Pressure resistance , PP-H is preferred for industrial applications.

5 On the other hand, PP-R is used predominantly in sanitary applications because of its low e-modulus (flexible Piping ) and its high internal Pressure resistance at high temperatures. PP-B is mainly used for sewage Piping Systems because of its high impact strength especially at low temperatures and its low thermal Standard Polypropylene (PP-H)Most of the grades are offered with nucleating agents (crystallization seeds), because PP crystallizes at least 10 times slower than PE. This way, we achieve lower internal stress and a finer structure. We differentiate between a and b nucleation.

6 Nucleation is realized by merely adding ppm (parts per million) of nucleating agents. PP is one of the non-polar materials whose surface hardly swells or dissolves. Cementing is not possible without special surface treatment. On the other hand, PP welds very well. Pressure Piping Systems can use heating element socket welding, heating element butt welding or the no-contact infrared (IR-Plus ) fusion technology developed by internal Pressure resistance is ensured through long-term testing in accordance with EN ISO 9080 and certified with the value of MRS 10 (minimum required strength).

7 6 The PP-H resin used by GF for PROGEF Standard PP industrial Piping Systems is characterized byAdvantages good chemical resistance high internal Pressure resistance high impact strength high thermal ageing and thermal forming resistance high stress fracture resistance outstanding weldability homogeneous, fine structurePROGEF Natural Polypropylene (PP-R)Specially for applications related to the BCF Plus (bead and crevice-free) welding technology, such as the life science/pharmaceutical industry, GF offers the PROGEF Natural PP system in addition to our PROGEF Standard PP system.

8 (GF PROGEF Natural is the only thermoplastic that is ASME Bio-Processing Equipment (BPE) listed).For such requirements, the welding technology plays a decisive role. In using the BCF Plus welding technology, beads and dead zones are avoided. This prevents micro-organisms from accumulating, thus improving the water quality. For less demanding purity requirements and all other industrial applications, especially those involving aggressive media, high impact and temperature stress, GF recommends PROGEF Standard PP, which has an optimal characteristics profile.

9 The material used for PROGEF Natural system is an unpigmented random copolymer, particularly distinguished by the following characteristics:Advantages excellent resistance against certain disinfectants and chemicals (mainly alkaline solutions) translucence very high surface finish quality good weldability (BCF Plus and IR Plus weldable) high temperature resistance 7 PPro-Seal Natural Polypropylene (PP-R)Specifically for applications such as lab grade DI water, reverse osmosis and chemical distribution Systems where electrofusion or threaded joining is material used for the PPro-Seal Natural system is an unpigmented random copolymer, particularly distinguished by the following characteristics.

10 Advantages excellent resistance against certain disinfectants and chemicals (mainly alkaline solutions) translucence very high surface finish quality electrofusion (same fusion machine that Fuseal PP & Fuseal 25/50 PVDF use) high temperature resistanceMechanical PropertiesPP-H has the highest crystallinity and therefore the highest hardness, tensile strength and stiffness, so the pipes hardly sag and a greater distance between supports is possible. PP-R has a very good long-term creep strength at higher temperatures, such as, for example, 80 C at continuous stress.