ទម្រង់ទំនាក់ទំនង

ហេតុអ្វីបានជាមនុស្សកាន់តែច្រើនជ្រើសរើស PP-RCT

នៅក្នុងបរិយាកាសធ្ងន់ធ្ងរជាងនេះទៅទៀត។, តើឧបករណ៍បំពង់មួយណាអាច "រស់"?មានចម្លើយតែមួយ:PP-RCT

PP-RCT is a high-performance upgraded material in the field of polypropylene piping, full name Polypropylene Random Copolymer with enhanced Crystallinity Temperature, commonly referred to as high-temperature-resistant polypropylene pipe or fourth-generation PP-R pipe. It is not a completely new material, but a high-performance polypropylene pipe developed on the basis of traditional PP-R through molecular structure optimization, crystallization morphology control, and nanomodification technologies.

The core differences between PP-RCT and traditional PP-R

On the left is the monoclinic crystal (α crystal) of PP-R, and on the right is the hexagonal crystal (β crystal) of PP-RCT.
Performance IndicatorsTraditional PP-RPP-RCT
Long-term service temperature≤70℃≤90~95℃
Short-term tolerance temperature≤95℃≤110℃
Minimum required strength (MRS)8.0 MPa10.0 MPa
High-temperature pressure-bearing capacityBenchmarkIncrease by 30%~50%
Low temperature impact resistanceGeneral (brittle below 0℃)Significantly improved (still flexible at -20°C)
Wall thickness under the same pressureRelatively thickCan be thinned by 15%~20%
Creep/Stress Cracking Resistanceមធ្យមExcellent

Manufacturing of PP-RCT

  • Special Resin Synthesis and Modification
  • Random copolymerization of propylene with 1.5%~4% ethylene, precisely controlling the molecular weight distribution; the core involves a blend of high-efficiency α-crystalline nucleating agents and a composite anti-oxidation system. Through twin-screw blending and granulation, special particles with high crystallinity and high melt strength are formed.
  • Precision Extrusion Molding
  • Single-screw extrusion is used with strict temperature control (≤230°C to prevent degradation); the key to success lies in ‘gradient slow cooling’ ទំហំ (60°C → 40°C → 25°C staged spraying), allowing the nucleating agents to fully act and uniformly refine spherulites, avoiding internal stress and microcracks caused by rapid cooling; laser online diameter and thickness measurement is conducted throughout.
  • Mandatory Quality Inspection and Certification
  • Must pass a 1000-hour static hydrostatic test at 95°C/10.0MPa and extrapolate life to 70°C/50 years according to ISO 9080; simultaneously test thermal stability (OIT ≥ 20 នាទី) and drinking water hygiene safety; after passing, the pipe body is mandatorily marked with PP-RCT, pressure rating, and the applicable standard.
PP-RCT three-layer co-extrusion production line：Inner layer (PP-R) → Middle layer (PP-R fiberglass reinforced layer) → Outer layer (PP-R)

The advantages of pp-rct in extreme environments

  • Extremely cold but not brittle: fine crystalline structure, homogeneous heat fusion, high system integrity under freeze-thaw cycles;
  • High temperature but not soft: MRS 10.0 MPa, anti-oxidation system, long-term stability at 90°C operating conditions;
  • Earthquake-resistant and corrosion-resistant: flexible one-piece molding, chemically inert, suitable for geologically active areas and high-chlorine water quality regions.
High-temperature dry street

Application of pp-rct

  • Building hot and cold water supply systems (especially for high-rise buildings, hot water return, and whole-house water supply for villas)
  • Connection of underfloor heating main/branch pipes, exposed pipelines for radiators
  • Solar heat collection systems, air source heat pump refrigerant water systems
  • Places with high requirements for water quality and temperature, such as hospitals, សណ្ឋាគារ, swimming pools, and food factories
  • Industrial low-pressure fluid transport (non-strongly corrosive media, temperature ≤ 95°C)
បំពង់ប៉ូលីអេទីឡែនចៃដន្យ
PP-RCT Pipes

ប្រវត្តិរូបក្រុមហ៊ុន

Luoyang Datang Energy Tech Co., អិលធីឌី. គឺជាក្រុមហ៊ុនផលិតឈានមុខគេរបស់ប្រទេសចិនដែលមានឯកទេសខាងបំពង់ជ័រ និងឧបករណ៍ភ្ជាប់គុណភាពខ្ពស់. បំពាក់ដោយខ្សែសង្វាក់ផលិតកម្មស្វ័យប្រវត្តិទំនើប និងគាំទ្រដោយក្រុម 200 អ្នកជំនាញ, យើងផ្តល់ជូននូវជួរផលិតផលទូលំទូលាយដែលរួមមានជាង 150 ប្រភេទនៃបំពង់ប្លាស្ទិក និងគ្រឿងបរិក្ខារដែលរចនាឡើងសម្រាប់ប្រព័ន្ធផ្គត់ផ្គង់ទឹក និងប្រព័ន្ធលូ, ការបញ្ជូនឧស្ម័ន, និងប្រព័ន្ធកំដៅជាន់. ផលិតផលសំខាន់ៗរបស់យើងរួមមានបំពង់ PVC និងឧបករណ៍ភ្ជាប់, PE (HDPE) បំពង់និងឧបករណ៍, បំពង់ PPR និងឧបករណ៍, និងបំពង់កំដៅជាន់ PEX.

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