of cast iron soil pipe and fittings, and through a program of research and the cooperative effort of soil pipe manufacturers, it strives to improve the industry’s products, achieve standardization of

EFFECTS OF BUILDING MOVEMENTS AND SOIL SETTLEMENTS ON STRENGTH REQUIREMENTS FOR PIPE SYSTEM 98 7.1 Introduction 98 7.2 Behavior of Individual Pipes and Lead- ... A.2 Survey of Performance of Cast Iron Soil Pipe and Fittings 156 14. APPENDIX B. MAIN DIMENSIONS OF THE PIPES USED AND HUB CONFIGURATIONS OF VARIOUS BRANDS 185

Heavy pipe and fittings gives greater crush strength and increased corrosion resistance. In terms of crush strength, Extra-Heavy pipe and fittings are roughly twice as strong in ... consult the Cast Iron Soil Pipe Institute’s (CISPI) website (www.cispi.org). Engineers looking to update their specifications can download industry and product

Strength of pipes: The crushing strength of sewer pipes is determined by the three-edge bearing test. The pipe is stressed until failure occurs. Table (3) gives the minimum crushing strength for clay pipes. Strength requirements for reinforced concrete pipes are given in table 4, for this table the crushing force correspond to 0.25mm crack

The material cast iron with flake graphite (lamellar graphite) of D ker cast iron sewage pipes and fittings corresponds to the requirements of EN 877, with the following characteristics: Density: approx. 7.2 kg/ dm (71,5 KN/ m ) Minimum tensile strength: 150 MPa

Minimum crushing strength values for pipes or pipe sections are specified in two ways (BS EN 295-1 2.9). For 100 and 150 mm diameter pipes specific values are given of 22, 28, 34 and 40 kN/m, with higher strengths permitted in steps of 6 kN/m. For larger pipes, crushing strengths are given according to class numbers, as shown in table 4 below

The design of the pipe is site specific, i.e., the pipe is custom designed for the specific site conditions where it will be used. Therefore, the pipe specifications and pipe classes for each contract are typically unique and only apply to that contract. The supporting strength of PCCP, like that of cast iron pipe, is determined by considering

Founded in 1949, the Cast Iron Soil Pipe Institute (CISPI) is dedicated to aiding and improving the plumbing industry. Through the preparation and distribution of technical reports, we seek to advance interest in the manufacture, use and distribution of cast iron soil pipe and fittings, and through a program of research and the cooperative effort

S c = Soil support combining factor E' b = Modulus of soil reaction of the pipe embedment, kN/m E' n = Modulus of soil reaction of the native soil at pipe elevation, kN/m The values of S c and E' b can be found from the table 5-4 and 5-5 given in AWWA M-45 manual. For finding S c, the value of E' n should be determined from the table 5-6. Pipe Stiffness, S S = E

EN877 Cast Iron Pipe and Fittings Qingdao Casting Quality Industrial Co., Ltd. [email protected] www.castingquality.com. BS EN 877:1999 This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority

Hubless Cast Iron Soil Pipe and Fittings for Sanitary and Storm Drain, Waste, and Vent Piping Applications' ... Other types of cast iron shall satisfy the criteria laid down for grey cast iron. 2) Tensile and ring crush strength for other products see annex A. 3) 332 MPa for nominal sizes equal to or greater than DN 250. A888 - 13a

Overall, no other drainage material comes close to cast iron soil pipe for strength and ability to maintain dimensional integrity. 5. Low Thermal Expansion Rates Cast iron pipe expands and contracts at a low rate, similar to those of building materials such as steel, concrete and masonry, eliminating the need for costly expansion joints. 6

WHY CAST IRON SOIL PIPE AND FITTINGS? For centuries, cast iron pipe and fittings have been the backbone of drain, waste and vent plumbing systems throughout the world. Cast iron is as reliable as it is enduring. ... fittings gives greater crush strength and increased corrosion resistance. In terms of crush strength, Extra Heavy pipe and

BECAUSE CAST IRON IS UP TO 10 TIMES STRONGER THAN ALL THERMOPLASTIC MATERIALS, IT DOES NOT NEED THE COMPACTION OF THE SIDEFILL TO SUPPORT THE PIPE WALL UNDERGROUND INSTALLATION CAST IRON SOIL PIPE This rigid material does not depend on sidefill stiffness, so the trench can be as narrow as the installer needs to make joint connections