Cast Flashcards
(21 cards)
List the four methods of cutting cast iron soil pipes
Snap cutter, multi wheel roller cutters, quick cuts, chop saws
List the three methods of joining hub and spigot cast iron soil pipe
Lead and oakum, pc4 and oakum, compression joints
List the two methods of joining hubless cast iron soil pipe
Caulked, compression, Mj couplings, type 1, type 2
What is the tightening torque of the screw clamps for hubless joints
60 pounds
The depth of lead or ps4 used to a caulked joint shall not be less than ____ or _____
25mm or 1 inch
Cast iron soil pipe weights that it comes in
Standard (STD)
Extra heavy weight
When checking cast iron soil pipe each hub and spigot should be ____ using a _____ _____ ____ to detect fine cracks
Sounded
Ball Peen hammer
All pipe clamps used in a plumbing system must be ____ approved and tightening screws must be made of ____ _____
CSA
stainless steel
What is the name of the coating that protects cast iron soil pipe against corrosion
Graphite
What are the diameters and available lengths of hub & spigot cast iron pipe
2” to 15” in diameter, 5’ to 10’ lengths
Where can cast soil pipe be used
DWV, fire protection, heating and cooling systems
What is the maximum pressure of extra heavy weight cast iron soil and pipe at room temperature
400 PSIG
List three advantages of cast iron soil and pipe
Versatile, noise suppression, rigid/strong/durable
List three disadvantages of caulked joints
Heavy
Cost
Special tools required
Gaskets and sleeves shall be of a ________ _______ ______ and _____ approved for intended purposes
Compounded elsctronetric rubber
CSA
List four advantages of compression joints
Quick and easy way to join pipe
Require no special skills and few tools
Convenient when cutting into existing pipe
Neoprene sleeves shall or gasket allows flexibility
What size socket is compression joint
5/16” socket
Why is caulked joints good
Convenient where small ground movement is expected
Convenient where piping is suspended within a building
Disadvantages of cast iron soil pipe
Heavy
High carbon alloy making it brittle
Material cost
Installation cost
Cast iron soil pipe joining methods
Hubless
Hub and spigot fittings
Caulked
Compression
Name three features of compression joint
One piece neoprene gasket
Serrated on both sides
Fits snug into hub