Hangers Flashcards
What are three things taken into consideration when selecting piping hangers?
1) Weight of pipe and contents
2) pipe material
3) Control of expansion contraction
Code requirements regarding the spacing of hangers are?
Minimum requirements
Special ribbed nylon clips are used primarily for?
Hydronic heating systems
Can galvanized swivel hangers be used as is for copper pipe?
No… It would require some type of insulation between the copper and the galvanized swivel hanger
Riser clamps are used for?
Support a vertical pipe
Clevis hangers are used for?
Support of horizontal pipes
When installing pipe in steel studs, a plastic ______ should be used.
Bushing
Prior to using structural attachments, permission in writing must be obtained from?
Structural engineer
Concrete inserts can support ______ pounds of weight.
As per the manufacturers specs
One of the most versatile support systems is?
Unistrut system
Bacterial, oxidation and electrolysis are three forms of?
Corrosion
Electrolysis can be increased by?
Raising the temperature
An alternative to protective coatings on hangers is?
Sleeving pipe and wrapping pipe with electrical tape
Hanger spacing is dependent on?
Pipe material
Pipe size
Pipe contents
The final determination on hanger spacing is?
The applicable code
Common fastener used as a pipe guide?
U bolt
Hangers are required on ABS pipe every?
At the end of branches
At changes in direction
At changes in elevation
What is the maximum spacing on all steel or iron pipes that are greater than 6 inches?
2.5 m
Cast iron soil pipe must be supported at intervals not exceeding ____ m.
At intervals not exceeding 3 m
What are riser clamps used for?
Used for supporting the weight of pipes extended vertically through a building
If you were running pipe through metal studs, what protection if any is used?
Snap in pipe connecters
Ready Rod comes in what sizes?
1/4” to 3/4”
