Yongda
Yongda
Engineered to handle elevated temperatures and operating pressures in compliance with strict international testing frameworks.
Polyethylene of Raised Temperature Resistance (PE-RT) tubing specialized for high-efficiency radiant heating systems in cold climates like Curitiba and Rio Grande do Sul.
A five-layer oxygen barrier structural design with an internal aluminum core, delivering outstanding durability and structural integrity under constant thermal cycling.
Precision-forged brass components engineered to ensure leak-free branching in polyolefin and PE-RT piping grids. High corrosion resistance.
Industrial-grade brass stop valves featuring custom seat designs to ensure bubble-tight shutoff in dynamic HVAC distribution manifolds.
Brazil's civil engineering landscape is undergoing a massive transformation. As urban centers like São Paulo, Curitiba, Porto Alegre, and Belo Horizonte expand, there is a rising demand for reliable, corrosion-resistant, and high-temperature plumbing systems. Traditionally, Brazilian construction heavily relied on copper pipes for hot water and PVC for cold water. However, the volatile cost of copper combined with its susceptibility to scaling, corrosion, and complex installation logistics has prompted a rapid shift towards polymer pipe systems.
PE-RT (Polyethylene of Raised Temperature Resistance) is emerging as a top-tier alternative. Southern Brazil, which experiences temperate winters, is seeing a surge in hydronic underfloor heating installations in residential developments. Concurrently, northern and coastal regions demand robust hot water distribution lines for hotels, resorts, and industrial complexes. The adoption of PE-RT Type II ensures that hot water systems operate at peak efficiency under pressures up to 10 bar, meeting the stringent requirements of ABNT standards.
A breakdown of the macromolecular engineering that differentiates PE-RT from traditional polymers, ensuring 50+ years of maintenance-free service.
Unlike standard PE, PE-RT utilizes controlled molecular branch chains (octene) during synthesis. This creates a dense web of "tie molecules" that absorb stresses without brittle cracking, preventing failure from sudden pressure surges.
Integrating an Ethylene Vinyl Alcohol (EVOH) oxygen barrier layer restricts oxygen ingress to below 0.1 g/m³d at 40°C. This completely stops aerobic bacterial growth and protects metal boiler elements from rust.
Designed to sustain constant stresses under high-temperature loads (up to 95°C), our PE-RT Type II pipes satisfy international standards (ISO 22391) and Brazilian NBR guidelines for hot and cold water installations.
| Technical Characteristic | Standard Reference | Yongda PE-RT Performance Metrics | |||
|---|---|---|---|---|---|
| Raw Material Base | ISO 22391 / ASTM F2623 | Premium PE-RT Type II Resins (Dowlex 2388 or equivalent) | Thermal Conductivity | DIN 52612 | 0.40 W/(m·K) — Ideal thermal exchange for radiant grids |
| Density | ISO 1183 | 0.941 g/cm³ — Highly flexible and structurally robust | |||
| Oxygen Diffusion Barrier | DIN 4726 | < 0.1 mg/(l·d) — Eliminates corrosion risks in hydronic loops | |||
| Maximum Continuous Operating Temp | ISO 22391 Class 4 / 5 | 70°C to 80°C (Design life span of 50 years at 1.0 MPa) | |||
| Peak Temperature Tolerance | ISO 22391 | 95°C (Malfunction conditions survival for up to 100 hours) |
Leveraging 28 years of industrial fluid control expertise to supply robust OEM piping and valve systems to Brazil and 20+ countries.
Yuhuan Yongda Fluid Control Co., Ltd. (formerly Yuhuan Yongda Plumbing Co., Ltd.) is located in the "China valve capital" — Yuhuan, Zhejiang. We specialize in product design, development, production, and sales of high-performance brass valves, fittings, and HVAC manifolds.
Partner With Us in Brazil
Our premium brand, Cokaren, represents our commitment to refined product aesthetics and long-term reliability. We believe that hydronic infrastructure should be built to last, providing thermal comfort and sanitary safety without interruption.
Operating under the motto "Struggle, Enterprising, Pragmatic, Innovative," our enterprise balances state-of-the-art production with strict social and environmental governance. We target the middle-to-high-end global market, offering environmentally sound, lead-free brass components and recyclable polymer pipelines that reduce chemical leaching and carbon footprints.
Quality Policy Statement:
"Fine work, no leakage." Every pipeline segment, manifold port, and shutoff valve is pressure-tested before leaving our factory floor.
From modern high-rises in São Paulo to municipal projects in Paraná, we customize configurations to withstand local pressures and installation demands.
Brazil's dense high-rises experience water pressure fluctuations. Our PE-RT Type II pipes offer flexible resistance to water hammer, lowering pipe failure risk and preventing costly structural damage in vertical riser columns.
View Pipe Options →Our complete heating system kit includes PE-RT pipes, manifolds, thermal actuators, and temperature controllers. Engineered to minimize thermal stress and keep homes warm throughout cold southern winters.
View Underfloor Kits →PE-RT offers excellent resistance to dynamic chemical environments. This makes it an ideal, low-cost choice for industrial cooling loops, wastewater management, and light chemical processing plants across Brazil's industrial zones.
Consult an Engineer →We support full OEM/ODM branding, specific wall thickness designs, and ABNT-compliant labeling.
Industrial components optimized for low pressure drops, long-term safety, and precise hydraulic balance.
The first line of defense in domestic water sanitation, designed to filter out 98% of physical particles in supply networks.
Features a spherical spool to control the flow of hot and cold water inputs in central boiler loops.
Designed to discharge air pocket accumulation in heat pumps, ensuring consistent hydronic heating performance.
Blends hot and cold feed water to stabilize system temperatures, protecting pipelines from thermal shock.
Central smart control console, designed to integrate and manage heating loop operations.
Designed to filter fluid impurities and display real-time system temperature and pressure readings.
A high-flow distribution block designed to distribute water evenly across individual loop runs.
Yongda's production base features advanced industrial automation, operating 24/7 to ensure consistent supply security. Our facility houses over 600 advanced machines, including 80+ dedicated machine tools. This setup allows us to quickly ramp up production and fulfill large bulk orders from Brazilian importers.
Our raw material management utilizes premium resin grades, resulting in PE-RT pipelines with high structural density, reliable wall thicknesses, and consistent flexibility. By implementing advanced predictive control and computerized scheduling, we minimize waste, shorten lead times, and offer competitive pricing to our global partners.
To support deliveries to major industrial ports like Porto de Santos and Porto de Paranaguá, we offer flexible shipping logistics. Our team handles complete customs clearing documentation, including bill of lading, certificates of origin, and comprehensive quality reports, ensuring a smooth customs process.
In modern plumbing and heating applications, component quality is essential to safety. Our manufacturing facilities maintain ISO 9001:2015 for quality management, ISO 14001:2015 for environmental protection, and ISO 45001:2018 for occupational health and safety.
For the Brazilian market, our products comply with ABNT standards. Our high-grade brass alloy valves offer lead-free and dezincification-resistant (DZR) performance, satisfying strict drinking water safety standards.
Premium connection systems designed to create long-lasting, leak-free seals in hydronic heating networks.
Female thread branch tee brass compression fittings, engineered for fast and secure connections in residential PE-RT/PEX lines.
Commercial press-fit brass fittings featuring dual EPDM O-rings to ensure leak-free joints in heavy-duty distribution networks.
CE-marked multi-loop control module, designed to automate zone valves based on real-time thermostat inputs.
High-grade brass manifold assembly featuring built-in flow balancing meters for precise hydraulic control.
Heavy-duty radiator lockshield valves designed for balancing heat output in residential heating loops.
High-precision electro-thermal actuator designed for quiet, automatic operation of manifold valves.
Forged brass globe stop valves featuring clear red control levers for manual hot water line isolation.
Pre-assembled water mixing stations designed to blend boiler feed water with return flow to regulate temperatures.
Valves and connection components to ensure system protection, backflow prevention, and precise routing.
Designed to prevent fluid backflow in domestic supply lines, featuring low crack pressure.
A low-power consumption actuator designed to fit onto manifold control pins.
Heavy-duty forged brass equal tees designed to connect matching diameters in high-pressure grids.
Cost-efficient inline spring check valves designed to protect booster pumps from pressure surges.
Technical guidance to assist B2B importers, EPC buyers, and HVAC installers with procurement questions.
Connect with our technical support team to receive custom pricing, material certifications, and detailed engineering specifications for your hydronic piping needs.