Industrial Fiberglass Specialties, Inc.（工业玻璃纤维专业公司。）.pdfVIP

Industrial Fiberglass Specialties, Inc. Technical Bulletin 521 Kiser Street Which is the Strongest Joint Dayton, OH 45404-1641 for FRP Composite Pipe Tel: 937-222-9000 Fax: 937-222-9020 03-28-2007 Page #1 of 5 Comparison of Bonded Bell and Spigot Structural Adhesive Weld Joint and Butt Overlay Weld Joints There are two broad categories of types of joints for FRP composite piping systems. One category of joining can best be described as the mechanical joints. This category includes: Threaded pipe (NPT) joints. Victaulic type ends and couplings. Dresser type couplings. Flanges. Bell and spigot gasketed joints (our Easy-Seal joints). Bell and spigot gasketed joints with locking keys (our Lock-Seal joints). Kwik-Key gasketed and locking joints. API oil field Acme and double Acme threaded style joints. And, joints having tapered back faces with clamping rings (Marman, AeroQuip, etc.) Catalog pages (cut-sheets) are available for each of these types of mechanical joints. The other category of joints for FRP composite pipe and fittings are the bonded joints. Even many of the mechanical joining methods, such as flanges, and threaded and victaulic adapters, start with a bonded joint. This paper takes a closer look at the types of bonded joints available for FRP composite pipe, and compares their relative merits. Whether made in the field, or the manufacturers shop; bonded joints for FRP composite pipe, fittings, and flanges can be further classified into two broad cat