POLYPROPYLENE PRESSURE PIPING SYSTEMS
 

PP-R and PP-RCT pipes come in metric sizes ranging from 16 to 710 mm and IPS schedule 80 sizes ranging from 1/2 to 6 in. The minimum hydrostatic pressure ratings are 160 psi at 73°F (1105 kPa at 23°C) and 100 psi at 180°F (690 kPa at 82°C) for plumbing applications, but pipes with different dimension ratios (DRs) can have higher or lower pressure ratings. Consult the specific PP-R or PP-RCT pipe manufacturer's literature and listings for appropriate pressure ratings. PP-R and PP-RCT pipes are sold in straight lengths. PP-R is also available in coils for smaller diameters and specific applications.

PP-R

Definition

According to the definition found within industry standard ASTM F2389, PP-R means polypropylene random copolymer. PP-R is a copolymer of propylene and at least one comonomer, where the propylene is more than 50% of the composition. PP-R piping products are rated for continuous operation at 180°F (82C°) temperature, with pressure ratings dependent on their wall type (SDR). PP-R pipes also may include reinforcement layers for benefits such as reducing longitudinal thermal expansion/contraction.

Overview

PP-R is a high-temperature plastic pressure piping system first used for plumbing and hydronic heating in the 1980's in Europe and introduced to North America in the 2000s. PP-R pipes also provide resistance to highly acidic and basic solutions. Other uses include industrial and food-grade piping. Joints can be heat-fused. The high heat and/or pressure performance makes PP-R pipes suitable for demanding applications, such as pressure piping (plumbing, hydronics) in commercial high-rise buildings.

PP-RCT

Definition

According to the definition found within industry standard ASTM F2389, PP-RCT means polypropylene random copolymer with modified crystallinity and temperature resistance. PP-RCT is a copolymer of propylene and at least one comonomer, where the propylene is more than 50% of the composition. PP-RCT piping products are rated for continuous operation at 180°F (82C°) temperature, with pressure rating depending on their wall type (SDR). PP-RCT pipes also may include reinforcement layers for benefits such as reducing longitudinal thermal expansion/contraction.

Overview

PP-RCT is a high-temperature plastic pressure piping system first used for plumbing and hydronic heating in the 2000's in Europe and introduced to North America in the 2010s. PP-RCT pipes also provide resistance to highly acidic and basic solutions. Other uses include industrial and food-grade piping. Joints can be heat-fused. The high heat and/or pressure performance makes PP-RCT pipes suitable for demanding applications, such as pressure piping (plumbing, hydronics) in commercial high-rise buildings.

PP-R & PP-RCT Advantages

  • Safety of potable water and long-term reliability
  • Resistance to corrosion, tuberculation, deposits
  • Chlorine and chloramine resistance
  • Lightweight, easy to transport
  • No scrap value, avoiding jobsite theft
  • Durability and toughness to survive jobsite installations
  • No flame, glue or solders are used for joining, heat-fused joints
  • Available in wide range of sizes
  • Natural Insulator, low thermal conductivity
  • Professional installed appearance

PP-R & PP-RCT Applications

  • Hot and cold water plumbing distribution, residential and commercial
  • Hydronic piping and distribution (radiators, fan coils, etc.)
  • Heating and chilled water piping
  • Suitable for many industrial and process piping applications
  • Food processing
  • Compressed Air