Is PEX tubing measured by ID or OD?

PEX tubing sizes are denoted by CTS (copper tubing size), not OD (Outside Diameter) or ID (Inside Diameter). OD of PEX, copper and CPVC pipe with the same size (CTS) is the same. This is why push fittings can be used with all of these pipes.

What are the sizes of PEX piping?

PEX tubes range in diameter from 3/8-inch to 1-inch for residential applications. For adequate water flow, it’s a good idea to install 1/2-inch or 3/4-inch PEX for your main lines. The standard when replacing old water supply lines with PEX is to use the same size.

What is the difference between red and blue PEX tubing?

Although there are three types of PEX (see Label Lingo, below), the different colors don’t connote the distinctions; they simply make it easy for the installer to identify which lines carry hot water and which carry cold. Red PEX pipe carries hot water. Blue PEX pipe carries cold water.

What is the difference between PEX and PE RT tubing?

One key difference between PE-RT and PEX, is that PE-RT is a thermoplastic, whereas PEX is a thermoset polymer. A thermoplastic can be heated and melted, whereas a thermoset polymer cannot. This allows PE-RT to be joined to compatible polyethylene fittings using socket fusion.

How can you tell PEX B from PEX?

Again, the main distinction lies in the manufacturing method, which is what assigns an A, B or C to PEX. PEX A is made using the Peroxide, or Engel, method. PEX B is formed using Silane, or Moisture Cure, method. This is the most common PEX pipe type out there.

What is the inside diameter of 3/4 inch PEX tubing?

3) 5/8 in. tubing is better than 1/2 in. tubing.

What is the inside diameter of 3/4 PEX pipe?

3) 5/8 in. tubing is better than 1/2 in. tubing.

Does PEX get brittle over time?

Like most other plastics, PEX will become brittle if exposed to sunlight for too long and may crack under pressure. Some manufacturers offer UV-stabilized PEX pipe with added inhibitors which may extend exposure time to around 6 months, but there are no permanent solutions we know of.

Which is better PEX or PERT?

Pexflow PEX-A surpasses the 720 hrs. PERT is only required to withstand 48 hrs and cannot meet the same temperature / pressure ratings as PEX. PEX is required to withstand 100 hrs before failure. Pexflow PEX-A is tested to withstand more than 1,000 hrs.

Is PEX A or B better?

Bottom line, PEX A is more resistant to burst pressure than PEX B. PEX A’s expansive material can handle up to 500 PSI, which makes it reliable in extremely cold temperatures. Since PEX B is a more rigid material, it will not hold up as well in similar situations.

What are the dimensions of a PEX tub?

Dimensional data and specifications PEX Tubing size (CTS/Nominal) Outside Diameter (OD) Minimum wall thickness Inside Diameter (ID) Volume gal/100ft 1/2″ 0.625″ 0.070″ 0.485″ 0.92 5/8″ 0.750″ 0.083″ 0.584″ 1.34 3/4″ 0.875″ 0.097″ 0.681″ 1.83 1″ 1.125″ 0.125″ 0.875″ 3.03

What is the ODOD of PEX pipe?

OD of PEX, copper and CPVC pipe with the same size (CTS) is the same. This is why push fittings can be used with all of these pipes. PEX made to US standards must comply with a SDR-9 (Standard Dimension Ratio), which is the ratio of OD (Outside Diameter) to pipe wall thickness (9:1). Exceptions are nominal sizes 1/2″ and below.

What is the minimum bending radius of PEX pipe?

For 1/2″ PEX with OD of 5/8″, minimum bending radius is 8 x 5/8″ = 5″. Over-bending the PEX pipe, deforms its’ round shape, restricts flow and over-stresses the pipe. Note: minimum bending diameter only refers to the 90-degree and 180-degree (U-shaped) bends.

What is CTS size of PEX pipe?

Notes: PEX tubing sizes are denoted by CTS (copper tubing size), not OD (Outside Diameter) or ID (Inside Diameter). OD of PEX, copper and CPVC pipe with the same size (CTS) is the same. This is why push fittings can be used with all of these pipes.