Yongda Yongda
B2B Flow Control Manufacturer

Cheap Double Ball Valve Company & Global OEM/ODM Factories

High-Performance Brass Valves & HVAC Solutions Built with Chinese Supply Chain Resilience

Premium Valves & System Accessories

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Executive Overview

The Strategic Value of Cost-Optimized Double Ball Valves

In modern HVAC, plumbing, and industrial liquid transmission systems, ensuring positive isolation and preventing backflow are critical metrics. A double ball valve (or double block and bleed system) utilizes two independent closures within a single body to secure flow paths, safeguarding equipment from fluid contamination and system shocks.

For B2B buyers searching for a cheap double ball valve company, the objective goes beyond lowering upfront unit prices. The true focus is maximizing return on investment (ROI) through vertical integration, material optimization, and high-efficiency production cluster advantages. By sourcing from recognized valve clusters in China, engineering groups can source valves that meet CE, ISO, and pressure ratings at a reduced cost base.

Yuhuan Yongda Fluid Control Co., Ltd. uses high-tonnage forging presses, automated CNC machining lines, and integrated quality control protocols to lower production costs while ensuring compliance with European and North American sanitary standards.

Automated Manufacturing Workshop at Yongda Fluid Control

Yuhuan Yongda Fluid Control Co., Ltd.

Established in 1996, Yongda is a professional plumbing valve manufacturer focusing on product design, development, and global distribution.

1996
Founded In
45,000+
Factory Area (sqm)
600+
Testing & Production Equipment
20+
Exported Countries
Yongda CNC Machining Plant

Our Brand & Quality Promise

Formerly known as Yuhuan Yongda Plumbing Co., Ltd., we are located in Yuhuan, Zhejiang—the recognized valve capital of China. With a total actual usable factory footprint reaching 80,000 square meters, we maintain a dedicated workforce and advanced infrastructure to support high-volume projects.

Our products are categorized into three main divisions: brass valves, brass fittings, and HVAC components. We target medium-to-high grade markets, focusing on environmental sustainability and lead-free alloys favored by consumers in North America and Western Europe.

Cokaren, our latest premium brand, represents refined aesthetics, reliable quality, and our commitment to comfortable, safe indoor environments under the promise: "Keep flowing, keep warming."

Technology Roadmap & Future Outlook

Evaluating the evolution of high-performance double ball valves for smart, zero-leakage flow control.

Eco-friendly Alloys

Phasing in low-lead and lead-free brass (CW617N, HPb59-1, and DZR brass) to comply with upcoming drinking water directives in Europe and North America.

Smart Actuation

Integrating mechanical ball designs with low-torque electronic actuators and IoT control modules for building management systems (BMS).

Advanced Sealing

Moving from standard PTFE to reinforced Teflon (RTFE) and high-density fluorocarbon polymers to extend valve lifetimes under high thermal loads.

Macro Industry Flow Control Solutions

Providing scalable flow control technology across residential, municipal, and industrial energy markets.

1. Underfloor Heating & HVAC Management

Double ball valves and manifolds regulate water temperature and balancing in residential heating loops. By placing double block mechanisms near the manifold units, maintenance engineers can isolate distinct floor loops without draining entire HVAC setups.

2. Domestic Water Safety & Filtration

By pairing double isolation valves with domestic water filters, residential systems are protected from municipal supply fluctuations. Regular maintenance is simplified by cutting off both the upstream and downstream pressure zones simultaneously.

3. Process Water Control & OEM Equipment

For industrial system packagers, brass check valves, balance valves, and double block valve modules provide safety components for pump stations, cooling circuits, and air compressors, keeping operations running smoothly.

Underfloor heating testing and manifold pressure evaluation

China Factory 4.0: Supply Chain Resilience & Efficiency

Leveraging the Yuhuan industrial cluster to deliver quality brass valves at competitive costs.

Quality Management System Audits and Packing Line

The term "cheap" in valve procurement is often misunderstood. In Zhejiang Yuhuan, cost competitiveness is achieved through supply chain integration rather than reducing raw material quality. Here is how Yuhuan Yongda delivers high-value, cost-effective valves:

  • Raw Material Consolidation: Close proximity to major brass refineries minimizes material transportation surcharges and allows strict control over alloy compositions.
  • Forging Press Automation: With over 600 sets of advanced testing and production equipment (including 80+ specialized CNC machining centers), manual intervention is minimized, lowering unit reject rates.
  • Vertically Integrated Production: We handle all stages—from hot forging and precision threading to plating, assembly, and 100% pneumatic sealing tests—entirely in-house, cutting out middleman margins.
  • Energy and Resource Planning: Advanced material recovery systems recycle 99% of brass shavings, further lowering production costs.

International Certifications & Quality Policies

Complying with global health and safety guidelines to ensure reliable operation in demanding environments.

Yongda has built its quality management on internationally recognized standards, facilitating customs clearances and regulatory approval in key markets:

  • ISO 9001:2015: Quality Management System Certification guarantees traceable materials and production steps.
  • ISO 14001:2015: Environmental Management System Certification controls emission outputs during the forging and pickling stages.
  • ISO 45001:2018: Occupational Health and Safety Certification protects workers in our forging and machining facilities.
  • CE Markings: Our HVAC control units, brass manifolds, and electric thermal actuators carry European CE compliance markings for safety and performance.

Our quality policy is simple: "Fine work, no leakage." Every single valve undergoes hydrostatic and pneumatic pressure tests before packaging to ensure zero-defect deliveries.

Quality Audits & Traceability

We work with global B2B procurement offices. We provide complete material test reports (MTRs) detailing the chemical composition and mechanical properties of each brass batch. Our quality team tracks each production lot back to the raw rod stock, giving distributors peace of mind for their supply chain records.

Energy Distribution System Components

High-performance valves and controls designed to work together for hydronic balance and temperature regulation.

Y9021 Water Filter

Y9021 Water Filter

The first line of defense in domestic water sanitation, filtering 98% of pipeline impurities.

Boiler Angle Valve

Boiler Angle Valve Y5001/Y5002

Controls hot and cold boiler water loops with a precision-machined spherical brass spool.

Y9070 Venting Valve

Y9070 Venting Valve

Automatically discharges trapped air in water heaters to maintain stable loop pressure.

Y5020 Mixing Shunt

Y5020 Mixing Shunt

Blends cold and hot return water, stabilizing pipeline temperatures to protect plumbing.

Y9031 Smart Thermostat

Y9031 Smart Thermostat

Integrates room temperature monitoring with actuator loops for automated HVAC energy savings.

Y2010/Y6012 HVAC Valve

Y2010/Y6012 HVAC Valve

Integrates air separation, manifold shutoffs, and temperature gauges into a single compact housing.

Y1001 Manifold

Y1001 Manifold Group

Evenly distributes heated media across multi-room zoning circuits.

B2B Technical FAQ & Sourcing Assistance

Answering technical questions regarding material specifications, design configurations, and China sourcing strategies.

What is the difference between a double ball valve and a single ball valve?
A double ball valve has two internal spherical closures within a single valve body, whereas a single ball valve has only one. This setup provides dual isolation (double block and bleed) capability, allowing system operators to block flow from both directions and drain or bleed the center cavity safely. This is useful for high-reliability systems where leakage could mix fluids or compromise safety.
Why are double block and bleed valves from Yuhuan Yongda cost-effective compared to Western options?
Our cost-effectiveness comes from vertical supply chain integration within Yuhuan, the valve capital of China. Because we manage the raw material sourcing, automated high-pressure hot forging, CNC multi-axis machining, electroplating, assembly, and testing in-house, we can eliminate intermediate logistics surcharges. These production efficiencies allow us to offer competitive pricing without cutting corners on material standards or pressure rating compliance.
Which brass alloys do you use to manufacture your valves?
We use high-grade brass alloys tailored to specific market requirements. For European markets, we offer CW617N (EN 12165 compliant) and CW614N. For North America, we utilize lead-free brass alloys (such as DZR and C37700 equivalent) that comply with NSF/ANSI 61 and 372 standards for potable water installations. Each batch is validated by spectrometer testing.
Do you support customized OEM/ODM packaging and branding?
Yes. We support custom branding, including laser-engraved logos, custom handles, color-coded jackets, and bespoke packaging configurations. Our new brand, Cokaren, is one example of our design capabilities, but we also produce private-label valves for international distributors and catalog suppliers.
How do you test and ensure zero-leakage performance?
Our quality policy is "Fine work, no leakage." Every valve undergoes 100% pneumatic testing under water, checking both seat sealing and shell integrity. Additionally, we run random hydrostatic burst testing, thermal cycling, and lifespan cycle tests in our ISO-compliant laboratory. This ensures that every shipment meets pressure classes like PN16 or PN25.
What is the standard delivery timeline for bulk B2B orders?
For standard brass valve patterns, the lead time typically ranges from 30 to 45 days after deposit confirmation. Custom forging configurations or bespoke OEM/ODM projects may require an additional 15 to 20 days for tooling design, sample verification, and pilot casting runs.

Commercial Fittings & Distribution Components

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