water pipe

Water pressure: 80 psi

The most common source of excessive water pressure is the municipal water supplier. The water company sets the pressure to meet their own needs, such as delivering water to fire hydrants, high elevation buildings (or tall ones), and other reasons. This water pressure is often well over 100 psi, and too often over 150 psi. However, the maximum recommended pressure for a residence is 80 psi.

Copper pipe:

½ L : 1,200 psi

1/2 L :  1,000 psi

¾ M : 700 psi

½ ,3/8, ¾ Coil : 360 psi

Plastic coil pipe:

100 psi   ,

Usage: Landscape and agricultural irrigation, residential and commercial water service, well/pump water systems

CPVC pipe:  

100 psi

Usage: CPVC Ultra-Pure is used for hot and cold water systems

Temp: [ 33F, 180F]  or   [ 0c, 80c]

Size : measure OD ( outside diameter )

Advantage : as durable as copper  and stand up high temperature and pressure.

Used to transition from metal piping systems to CPVC

Used to transition from metal male pipe threads to CPVC.

PVC pipe:

280 psi

Size : measure ID ( inside diameter)

Usage: Pressure and drain, waste and vent

Schedule 40 : The most common Schedules are 40, 80 and 120, with Schedule 40 being the most readily available and commonly used. As the schedule gets larger the pipe wall gets thicker from the outside in, so the inside hole (bore) of the pipe gets smaller.

Adapter from copper to CPVC.

        

         

Use Compression Fittings on copper and PEX tubes.  

     

     

   

 

Use Compression Fittings on copper tubes

     

 

Prevent nail from drilling thru. pipe

 

Use PEX in bathroom remodel 

                                                                 

PEX pipe:

160 psi

30F < temp < 200F

Its pressure rating is even higher than CPVC, therefore it’s more suitable to replace copper pipe in bathroom or kitchen remodel projects.

Advantage: it’s more flexible.  Use clip ring can easily clip into shower header, etc. 
$30 / 1/2inch 100 ft  pex pipe
50C / crimp ring
80C / coupling fitting