A pipe hanger is a support device that suspends pipe from building structure using straps, clamps, or clevis hangers. Proper hangers prevent sagging, stress at connections, and damage to adjacent materials and equipment.
Technical Details
Hangers support pipe weight at intervals specified by code. Copper supply lines require support every 6 feet for horizontal runs and every 10 feet for vertical runs. Steel pipe requires support every 12 feet horizontally. Hanger spacing depends on pipe size, material, and water weight. A 1-inch copper pipe filled with water weighs approximately 4.2 pounds per foot. Hangers must accommodate pipe diameter with rubber or plastic inserts to prevent corrosion and material compatibility issues.
Types and Materials
Common hangers include strap hangers, clevis hangers, clamp hangers, and riser clamps. Materials include steel, copper, and plastic. Galvanized steel hangers resist corrosion in exposed installations.
Practical Significance
Correct hanger placement prevents pipe deflection, reduces stress on fittings, and prolongs system life by 15 to 20 percent. Improper spacing leads to sagging, joint failure, and water leaks.