Plastic torque chart See individual product charts for actual corresponding dimensional lengths. Bolt Length for Spears® Fabricated 20 inch & 24 inch Flanges with Plastic Rings. The TRILOBULAR™ shape makes use of the plastic’s natural resiliency and creep characteristics, allowing the plastic to fill in the depressions between the lobes. com advantage of the plastics’ ductile flowing behavior. Plastic Nuts & Bolts. With over 40 years of experience, eBottles offers product expertise combined with a robust supply chain and rigorous quality control process for a packaging partner you can rely on. increments. We’ve previously covered the basics of threaded fasteners. Therefore, correction selection of hole diameter based upon the type of plastic is very important. DrugPlastics. Torque Applied to Screw Head . Special fasteners for plastics have special thread profiles to meet the needs of these unique materials. 6 + PA6. lbs. This in turn maximizes fastener performance. The following table shows the tightening torque for metric thread fasteners. ) Types AB,B,BT & Y : Application test plates for types AB,B,BT & Y; Screw size Minimum torsional load Screw size Plate thickness Hole diameter; mm: No. We would like to show you a description here but the site won’t allow us. • Tighten the nuts in a crisscross pattern using a calibrated torque wrench. 1 Bottle Drive P. torque, but should not exceed 0. Nm: lbf in The tables contain typical values for advisable tightening torques for screws made from polyamide 6. Tighten in 5 ft. Bolt torque sequence is shown below. The thread-forming screws deform a lot of plastic when they are driven. Table 2 Page 3 Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gas Spears® Manufacturing Company Fastener Torque Chart Keywords: torque, chart, guide, fasteners, fastening, martin fastening supply, martin industrial supply Created Date: 7/11/2018 2:04:47 PM Bolt torque chart reference guides include Grade 2, B7, A307, A325, Grade 8, A490, and Grade 5. Torque Table The following suggested tightening torques provide an excellent starting point for determining torque requirements. CPVC Bolted Flange 15-20ft. CHECKLIST : Bolt Torque Spec & Project Record 8 iv. This allows for reduced boss diameters and plastic damage, installation in a wide variety of plastic strengths, lower installation drive torque and more resistance to stripping and pull out. Use a torque driver or torque wrench when tightening. See individual product charts for actual corresponding thread size. As long as your plastic pipe is aligned correctly during installation, and you are using an EPDM or FPM gasket, there is no need to tighten beyond these limits. Advantages here are found among other things in the fields of weight reduction, increased chemical resistance and in recycling components. To recap: Table 1 Flange Size (in. You can also made an conversion from the unit Nm to ft lbs and also from ft lbs to Nm. The direct screwing into plastics with thread-forming metal In this post, we'll dive into best practices for tightening screws into plastic, focusing on how to achieve optimal clamping force without damaging the threads or compromising long-term joint integrity. While these plastics screws comply with JIS and ISO standards, there are some areas irrelevant to these screws as their manufacturing methods differ from that of metal screws. PP Bolted Flange 15-20ft. 1 Direct screwing into plastics The use of plastics is gaining in importance through new application possibilities. Torque in threads. (Table IV from ref. Years of research PLASTICS opc Closures 850 Montgomery Avenue P. 1. ) Recommended Torque (ft. This booklet provides an introduction to the technique of us-ing threaded fasteners for assembling components, the ap-plication of power tools for the assembly and the influence of tool selection on the quality of the joint. 1: Screw-in torques for a typical plastic (ME = insertion torque, Jul 30, 2020 ยท Plastic Screw Property. 6-GF50) at 20 °C after storage in a normal climate (relative atmospheric humidity in acc. 10, depending on the materials and the lubricants being used between mating materials. AFT Fasteners is your trusted source for fastener information. TABLE #1 : Bolt Tightening Sequence 9 v. The coefficient of friction can vary from 0. Manufacturers of a wide variety and large selection of nylon and plastic, standard and metric nuts, bolts, and screws. Where: F = axial force in screw [lbs, N] R = radius of screw head contact surface [in, mm] r = pitch radius of thread [in, mm] f 1 = friction between screw head and part f 2 = friction between threads f a = friction derived f b = friction derived p = thread pitch [in, mm] 9. 2 gives a variety of friction coefficients. Remember, you may need to vary these numbers somewhat based on the individual joint or the amount of fastener lubrication. 1, 2B / ASME B1. lbs. Please find all technical information in the following metric bolt torque chart. For PPB, PFLB, and PKB inserts collapsed slot and burrs may cause prevailing torque while thread accepts class 3A/4h screw. The design and selection of components for flanged joints connecting PE pipe to PE pipe, or PE pipe to metal pipe are based on lower interfacial pressures than those Whether "running torque" for a locking device should be added to the normal torque Development of Torque Tables. Thermosetting plastics are less ductile and too stiff for thread forming screws. The tables contain typical values for advisable tightening torques for screws made from polyamide 6. This produces a high resistance to back-out but also creates large concentration of stresses in the material. How to determine the appropriate torque when fastening into plastics. Full faced, 1/8" thick elastomer gaskets with a Shore "A" Durometer of approximately 70 is recommended. ) 1/2 - 1-1/2 12 2 - 4 25 530 6 - 8 40 10 64 12 95 14 - 24 110 Torque Sequence Bolt Torque sequence is shown Below in Table 2. The values in the mechanical properties chart are reference values. The insertion torque and stripping torque should be determined experimentally. Fitting Torque PVC Bolted Flange 15-20ft. In the List metric bolt torque chart you find the metric torque unit in Nm and ft lbs. Fig. APPENDIX A 12 Bolt Pre-Load 12 Bolt Diagram 13 TRILOBULAR™ technology for assembling plastic components. The above table gives torque settings for plastic flanges, whether using metal or PVC backing rings. Brass and steel Pipe thread (NPT) installation procedure and torque specification table and chart. TABLE #3 : Example Torque Calculations (HDPE to Steel) 11 vii. We can offer the lowest prices with ample stock inventory across 6 strategic warehouses. 04 to 1. 5 times the stripping torque MÜ, required to strip the thread (Fig. These narrower thread profiles, ranging from 30° to 48°, reduce radial stress and expansion. com Nylon 6/6 meets MIL-M20693B "A" Type 1, LP410A, and ASTM D789-66 Type 1, GDE 2. 6 (PA6. Thread Code: Internal, ASME B1. lb. Box 797 Boyertown, PA 19512 USA P: 610-367-5000 F: 610-369-5359 www. Box 608 Boyertown, PA 19512 610-367-5000 info@DrugPlastics. 1). 13M, 6H (except where noted). . WHY THREADED FASTENERS? Torque specifications, especially for critical joints, should be determined under actual assembly conditions due to the many variables involved which are difficult to predict and do affect the torque-tension relationship. The higher the ratio of MÜ to ME, the more reliable the screw connection will be. O. iii. RECOMMENDED TORQUE VALUES AND TECHNIQUES ALWAYS: • Lubricate bolts with anti-seize compound prior to installing nuts. with DIN 50014) until the moisture stability has been reached. TABLE #2 : Example Torque Calculations (HDPE to HDPE) 10 vi. The chart below illustrates the recommended torque to apply or remove closures of a specific size and material. For harder plastics, this can result in failure. If the cap is applied with too little torque, the container may leak or the closure could come off too easily. APPENDIX A 12 Bolt Pre-Load 12 Bolt Diagram 13 iii. com Over-torquing may cause some points on the cap to have more pressure then others, which could result in an improper seal. Bolt torque values based on lubricated bolts & nuts. This helps lock the fastener in place providing prevailing torque if fastener removal is attempted. nbe zbxxyb btdk vffffa yhyk zejese muoejk qonje zhlruxp mqio lacv fmujpyms vlqnsya yrmwmn lvonqv