Yongda
Yongda
Explore our core safety range manufactured for water heating systems, boiler installations, and hydronic HVAC grids across the United Kingdom.
Automated overpressure release mechanism optimized for residential water heaters.
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Heavy-duty brass composition engineered for high thermal tolerance and reliability.
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Integrated boiler manifold sets incorporating safety venting and pressure relief ports.
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Unified safety groups for expansion systems and hydronic underfloor networks.
Get Latest PricelistThe engineering landscape of the United Kingdom imposes some of the most rigorous pressure dynamics and safety rules globally. Safety valves deployed within the UK must navigate the strict confines of the Pressure Systems Safety Regulations 2000 (PSSR). Whether installed in district heating networks across Greater London, process steam plants in the Midlands, or domestic hydronic systems in Scotland, safety relief valves operate as the primary line of protection against catastrophic system failures.
With the transition from traditional gas boilers toward high-efficiency hybrid designs, heat pumps, and localized heating networks, pressure integrity has become increasingly critical. British infrastructure demands components capable of withstanding varying water chemistry, thermal stress, and high duty-cycles, necessitating robust copper-alloy and dezincification-resistant (DZR) brass construction.
Ensuring all imported safety devices align with statutory requirements for safe operating limits.
Certified discharge coefficients to quickly vent excess pressure in commercial boilers.
Tailoring advanced safety valve and brass fitting configurations to meet localized hydronic, district heating, and municipal demands.
Integrating compact 3-bar safety valves inside wall-hung boilers across UK residential projects to protect against closed-loop expansion risks.
Large-scale water circulation systems in hospitals, commercial towers, and schools demanding heavy-duty high-flow brass mixing loops and pressure release safety groups.
Providing high-efficiency check valves, air vents, and custom heat pump safety configurations supporting the UK's transition to Net-Zero district heating.
Leading the frontier of safety device development through material innovation and digitalization.
Responding to strict UK WRAS amendments. We are developing plumbing system components that leverage copper-silicon alloys, maintaining extreme corrosion resistance without lead contamination.
Integrating mechanical safety groups with pressure sensors linked to IoT networks, enabling smart facility management and proactive maintenance notifications for UK commercial properties.
Evaluating and optimizing seal materials (like hydrogen-resistant EPDM and Viton) to survive exposure to potential future hydrogen-methane domestic fuel blends in Great Britain.
Founded in 1996, Yuhuan Yongda Fluid Control Co., Ltd. (formerly Yuhuan Yongda Plumbing Co., Ltd.) is situated in Yuhuan, Zhejiang—widely celebrated as the "China Valve Capital". As a premier manufacturer in the global HVAC and plumbing sector, we specialize in high-grade brass valves, fittings, and HVAC manifolds.
Spanning an expansive footprint of 45,000 square meters (with an actual usable floor space of over 80,000 square meters), our facilities house more than 600 sets of cutting-edge manufacturing and testing apparatus. This includes 80+ dedicated machining centers that enable us to satisfy the most demanding customization specs from international clients.
Our commitment to quality is backed by robust standardizations: ISO9001:2015 (Quality Management), ISO14001:2015 (Environmental Management), and ISO45001:2018 (Occupational Health & Safety). Additionally, our products carry necessary global approvals to ensure streamlined compliance across borders.
"Keep flowing, keep warming." As Yuhuan Yongda's signature premium brand, Cokaren delivers refined finishes and strict tolerances for water distribution, hydronic setups, and temperature control assemblies.
A complete schematic mapping of how our components coordinate to ensure safe, energy-efficient thermal distribution.
The first line of defense in domestic water sanitation, filtering 98% of system particulates.
Controls boiler inflow and outflow using a polished, leak-free spherical spool.
Vents trapped air bubbles from heat pumps and boilers to secure system stabilization.
Blends domestic cold and hot feeds to balance outbound fluid temperatures.
Consolidates multi-zone environmental sensors to adjust underfloor fluid flow.
Distributes flow loops while monitoring individual segment temperature and pressure.
Sourcing from Yuhuan Yongda enables UK procurement managers to bypass regional capacity constraints. Because Yuhuan features a comprehensive localized cluster for raw copper, brass forging, and tooling industries, we possess complete control over material supply. This direct access buffers against sudden metal price shocks and ensures reliable lead times.
By leveraging advanced automated machining centers, we keep unit production costs low without compromising precision. Our Quality Policy—"Fine work, no leakage"—drives our production line to subject every valve assembly to rigorous hydrostatic tests prior to dispatch, maintaining a near-zero defect rate.
For UK distributors, we arrange direct shipping via container logistics from Ningbo/Shanghai ports straight to major UK entry points like Felixstowe or Southampton. This ensures a predictable, reliable path from factory floor to British project sites.
Preserving our full engineering catalog—including underfloor manifolds, check valves, and plumbing joints.
Dual-function isolation valve featuring a built-in mesh screen for plumbing systems.
Manual and thermostatic control valves to balance underfloor heating loops.
Pre-assembled bypass shunts for domestic and light commercial boiler integrations.
Precision-milled brass manifolds for multi-room hydronic floor heating loops.
Cokaren series heavy-duty brass bibcocks with multi-fit hose union threads.
Threaded non-rising stem gate valves for main line water insulation.
Copper-alloy connector pipes designed for municipal utility installations.
NPT thread-to-barb adaptors built to tight domestic specifications.
A summary of the nominal sizing and pressure ratings of our brass safety valve series.
| Model Series | Nominal Connection Size | Preset Release Pressure (Bar) | Temperature Range | Body Material | Typical UK Application |
|---|---|---|---|---|---|
| Y-PRV-01 | 1/2" M BSP / F BSP | 3.0 Bar (Fixed) | 0.5°C to 110°C | CW617N / DZR Brass | Domestic Gas Boiler Safety Loop |
| Y-PRV-02 | 3/4" M BSP / F BSP | 6.0 Bar (Adjustable) | 0°C to 95°C | Lead-Free Brass | Unvented Hot Water Cylinders |
| Y-PRV-03 | 1" BSP | 8.0 Bar, 10.0 Bar | -10°C to 120°C | DZR Brass (Durable) | Commercial Califiers & Storage Vessels |
| Y-PRV-04 | 1/2" Compression | 3.0 Bar | 0.5°C to 90°C | Nickel-Plated Brass | System Expansion Vessel Isolation |
Addressing technical questions regarding pressure systems, installation rules, and international sourcing standards.
Yes. Our safety valves are manufactured using raw materials and design profiles that align with BS EN ISO 4126 standards. In compliance with the UK’s post-Brexit rules, our exported batches are configured to carry UKCA / CE markings as demanded by pressure piping regulations.
Several municipal water grids across the UK feature aggressive water conditions that leech zinc from conventional brass alloys, causing structural degradation. Our DZR copper-alloys (e.g., CW602N) prevent this corrosion, ensuring the safety valve’s body maintains pressure integrity for long lifespans.
We provide preset options ranging from 1.5 Bar up to 10 Bar. For large-scale boiler manufacturing customers, we can pre-calibrate release thresholds at our testing facility to match specific system requirements.
Every individual safety valve undergoes automated hydrostatic pressure chamber tests. Additionally, we conduct cycle-load testing and seal-integrity evaluation on our advanced inspection benches to guarantee zero seat leaks before packing.
Explore our expanded range of brass fittings, check valves, and plumbing adapters optimized for direct import.
Inline Y-type fluid filtration assemblies preventing system contamination.
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Smart temperature controller for radiant floor heating grids.
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Programmable intelligent room thermostats designed for modern HVAC networks.
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Durable 90-degree brass elbow joints for rigid copper and PEX lines.
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Quick-assembly brass sockets designed for heavy-duty plumbing applications.
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Reducing nipple connectors machined to strict thread tolerance guidelines.
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Three-way T-junction couplers ensuring smooth fluid split dynamics.
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Cost-effective threaded adapters, hex nuts, and bushings for quick distribution.
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Nickel-plated brass non-return valve combined with a particulate filter screen.
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Ensures uniform flow distribution across multi-zone hydronic heating systems.
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Forged, highly polished 2-way angle isolation valve for bathroom utility taps.
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CE-certified durable angle valve featuring an easily cleanable internal mesh filter.
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