The Cast Iron Soil Pipe Institute (CISPI) was organized in 1949 by the leading American manufacturers of cast iron soil pipe and fittings. The Institute is dedicated to aiding and improving the plumbing industry.

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 cast iron soil pipe

hubless cast iron soil pipe and fittings for sanitary and storm drain, waste, and vent piping applications cast iron soil pipe institute 2401 fieldcrest dr mundelein, il 60060 phone: 224.864.2910

Cast Iron Soil Pipe and Fittings are classified into two major types—hub and spigot and hubless. Hubless pipe and fittings are also referred to in the plumbing industry as no-hub. Hubless cast iron soil pipe and fittings are manufactured without a hub, in compliance with CISPI 301.

ASTM A 888 Standard specification for hubless cast iron soil pipe and fittings for sani tary and storm drain, waste, and vent piping applications. CISPI Specifications

Specification for cast iron soil pipe and fittings for hub and spigot sanitary and storm drain, waste, and vent piping applications. (This seldom-referenced specification modified ASTM A-74 by making pressure testing optional and appropriate collective marks optional.)

Cast Iron Soil Pipe Institute (CISPI) Standard Specifications CISPI 301-21. Hubless Cast Iron Soil Pipe and Fittings for Sanitary and Storm Drain, Waste and Vent Piping Applications.

The casting method involves pouring the iron in a molten or liquid form into a mold which defines the shape of the finished product. Irons are also sometimes identified by color or physical properties. The most common iron is gray iron (the color of the iron once it has cooled). Cast iron soil pipe and fittings are produced from this type of iron.

CISPI Cast Iron Soil Pipe & Fittings Handbook. Handbook Flipbook. CISPI Literature. CISPI Brochure. Soils Test Evaluation Procedure for Cast Iron Soil Pipe and Fittings. CISPI Specifications. CISPI 301-21. CISPI Designation: 301-18. CISPI Designation: 310-20. For Engineers: Recommended Spec Language.

The physical properties of cast iron soil pipe make it the best DWV (Drain, Waste, and Vent) material for underground installation. The two keys to proper underground installation are trench preparation and backfilling.