Yongda
Yongda
Explore our industrial-grade plumbing components, radiator systems, and performance valve products engineered for high durability.
Yuhuan Yongda Fluid Control Co., Ltd. (formerly Yuhuan Yongda Plumbing Co., Ltd.) was founded in 1996 and is strategically located in the "China Valve Capital" – Yuhuan, Zhejiang. As a prominent, specialized plumbing valve enterprise, we integrate design, rigorous R&D, advanced production pipelines, and global distribution under one roof.
Our comprehensive portfolio is classified into three core sectors: precision brass valves, durable brass fittings, and high-efficiency HVAC system solutions. Positioned in the middle and high-grade global markets, our products highlight structural longevity and strict environmental safety protocols. This commitment to ecological engineering makes Cokaren the brand of choice for distributors in North America, Europe, and neighboring international markets.
To provide modern residential comfort, our newly established sub-brand, Cokaren, delivers a refined appearance and superior internal mechanics. Grounded in our brand promise – "Keep flowing, keep warming" – Cokaren water system accessories are designed to optimize residential heating, cooling, and water distribution networks globally.
Our massive infrastructure ensures a robust supply chain, precision engineering, and high-volume order fulfillment capability.
The manufacturing cluster in Yuhuan, Zhejiang offers strategic, technological, and supply-chain advantages for global procurement.
Yuhuan is widely recognized as the "China Valve Capital." This location provides direct access to domestic raw material refineries, logistics partners, and toolmakers, keeping overhead low and production times fast.
We source premium, low-lead and lead-free DZR (Dezincification Resistant) brass alloys. Our processes comply with global health and environmental regulations, including NSF/ANSI 61 and CE certification standards.
Adhering to our corporate quality policy, "Fine work, no leakage," each pressure reducing valve and manifold undergoes high-pressure air and hydrostatic testing to guarantee zero leaks before shipment.
Our operation is built on four core values: Struggle, Enterprising, Pragmatic, and Innovative. Under the guidance of our customer-first and quality-driven ethos, we work to balance business growth with employee well-being and satisfaction.
Yuhuan Yongda Fluid Control Co., Ltd. maintains a fully certified quality framework, having successfully passed:
These certifications demonstrate our ability to consistently deliver high-quality products under safe and environmentally responsible conditions.
Our high-precision valve assemblies, thermostats, and manifolds work together to optimize energy distribution and maintain stable, leak-free HVAC performance.
Main pressure regulation component for HVAC supply lines.
Designed to maintain tight seal connections under variable pressure.
The first line of defense in domestic water sanitation, filtering 98% of pipeline impurities.
Allows easy maintenance disconnects without fluid loss.
Controls hot and cold water inflow and outflow in boilers, utilizing a spherical spool.
Reduces inlet pressure to protect downstream pipes.
Discharges excess air from water heaters to maintain stable system operation.
Mixes hot and cold water to stabilize temperature and protect plumbing.
Our pressure reducing valves and fittings are engineered to withstand demanding operational conditions across domestic and industrial settings.
Uncontrolled municipal water pressure can strain household boilers and sub-manifolds. Installing brass pressure reducing valves (PRVs) and mixing shunts helps stabilize system pressure, prevents water hammer, and keeps floor heating networks running safely.
Commercial HVAC networks rely on automatic air vent valves and safety relief valves to manage temperature shifts. Our forged piston pressure reducing valves regulate pressure changes, shielding components from premature wear and stress.
Using lead-free brass check valves, Y-strainers, and PEX compression fittings is crucial for public drinking water safety. Our products meet strict international standards, preventing reverse flow contamination and keeping water supplies clean.
Modern flow control engineering is rapidly shifting toward smart municipal infrastructure and energy-saving building systems. The integration of IoT sensors into pressure reducing stations allows real-time pressure monitoring, which helps detect leaks early and reduces operating costs.
Additionally, global environmental initiatives are driving stricter standards for plumbing alloys. Modern manufacturers must replace leaded brass with bismuth, silicon, or eco-friendly brass options to protect drinking water quality.
Our R&D efforts are focused on meeting these changes. By using precision forging and CNC machining, we produce valves with smoother internal chambers. This design minimizes turbulent flow, reduces cavitation wear, and extends the service life of municipal and domestic installations.
Browse our catalog of specialized flow controllers, radiator adjusters, air vents, and connection interfaces designed for global HVAC markets.
Protects the valve seat by trapping debris directly within the ball assembly.
Manual and automatic temperature controls for individual radiator zones.
Maintains consistent fluid temperature using a thermodynamic feedback loop.
Distributes flow to multiple heating zones, including manual control dials.
A durable, corrosion-resistant outdoor hose valve with Cokaren branding.
A reliable gate valve designed for low fluid friction and straight-line water flow control.
Calibrated brass connection pipes that simplify residential water meter installation.
Corrosion-resistant threaded brass adapters designed for the US market.
Every valve manufactured in our Zhejiang facility undergoes rigorous quality checks to ensure zero-leak performance and compliance with target certifications.
Our testing labs are equipped with advanced metal analyzers, hydraulic burst benches, and cycle fatigue testing rigs. By validating every raw material batch, we ensure our brass meets chemical purity specifications for tensile strength, elongation, and corrosion resistance.
Our manufacturing and assembly workflow features:
This strict testing framework allows us to deliver high-quality fluid control components to demanding buyers worldwide.
Find answers to common questions about selecting, installing, and maintaining brass pressure regulating valves.
Examine our full selection of check valves, radiator controls, gate valves, and pressure regulating systems.
