In some more extreme environments, which pipe fittings can ‘survive’?There is only one answer: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

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’ dimensjonering (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 min) and drinking water hygiene safety; after passing, the pipe body is mandatorily marked with PP-RCT, pressure rating, and the applicable standard.

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.

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, hotels, swimming pools, and food factories
• Industrial low-pressure fluid transport (non-strongly corrosive media, temperature ≤ 95°C)

Bedriftsprofil

Luoyang Datang Energy Tech Co., Ltd. er en ledende kinesisk produsent som spesialiserer seg på høykvalitets plastrør og -fittings. Utstyrt med state-of-the-art automatiserte produksjonslinjer og støttet av et team av 200 fagfolk, vi tilbyr en omfattende produktlinje som omfatter over 150 typer plastrør og fittings designet for vannforsyning og avløpssystemer, gassoverføring, og gulvvarmesystemer. Våre hovedprodukter inkluderer PVC-rør og fittings, PE (HDPE) Rør og beslag, PPR rør og fittings, og PEX gulvvarmerør.

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