Located in Wenzhou, Zhejiang Province—often called the “Valve Capital of China”—Zhejiang Carilo Valve Co., Ltd. has spent more than two decades establishing itself as a trusted manufacturer and supplier of industrial ball valves. Founded in 2000, the company operates from a 15,000-square-meter production facility in the Wuxing Industrial Zone, Oubei Town, and has grown to employ 50 dedicated professionals serving clients across Europe, the Middle East, Southeast Asia, and beyond. Whether you need standard inventory items or complex custom-engineered solutions, Carilo positions itself as a one-stop partner for industrial valve requirements.
Company Scale and Production Capacity
Understanding a manufacturer’s actual capacity matters when you’re evaluating supply chain reliability. Carilo maintains what the company describes as large-scale production capability for quick turnaround on common orders. Their facility houses multiple production lines equipped with CNC machining centers, automated assembly stations, and pressure testing equipment capable of handling valves ranging from DN15 to DN300 (0.5 inch to 12 inches) and pressure ratings from Class 150 to Class 2500. The company reports processing approximately 9.5 million transactions annually, with an estimated 86% project completion rate and a client satisfaction metric hovering near 89%.
| Operational Metric | Performance Indicator |
|---|---|
| Years in Operation | 24+ |
| Factory Footprint | ~15,000 m² |
| Workforce Size | 50 employees |
| Annual Transaction Volume | 9.5 million+ |
| Project Completion Rate | 86% |
| Client Retention/Satisfaction | 89% |
“Opening and closing are under your control.” — This motto from Carilo reflects their engineering philosophy: valves that respond precisely, last reliably, and minimize maintenance intervention across demanding operational environments.
Product Portfolio and Manufacturing Specialization
Carilo’s core specialization lies in industrial ball valves, with particular emphasis on floating and trunnion-mounted designs suitable for oil and gas, petrochemical, water treatment, HVAC, and general industrial applications. The company produces both full bore and reduced bore configurations in materials including carbon steel, stainless steel (304, 316, 316L), alloy steel, and special alloys like Inconel for corrosive service conditions.
Key product categories include:
- Two-piece and three-piece ball valves for easy maintenance
- Fire-safe certified designs meeting API 607 standards
- Anti-static and blowout-proof stem constructions
- High-pressure forged body valves rated up to 2500 psi
- Cryogenic service valves tested to -196°C
- Double block and bleed (DBB) configurations
Beyond ball valves, Carilo’s catalog extends to gate valves, globe valves, and check valves, though ball valve manufacturing remains their primary revenue driver. The company operates under both OEM and ODM arrangements, having produced custom-branded valve solutions for international distributors and end-users across North America, Europe, and the Middle East.
Quality Assurance and International Certifications
For industrial valve buyers, certification compliance isn’t optional—it’s a gatekeeping requirement for project approval. Carilo holds certification to multiple international standards, which their marketing materials describe as globally recognized compliance approved for industry demands.
| Certification/Standard | Scope of Compliance |
|---|---|
| ISO 9001:2015 | Quality Management System |
| API 6D | Pipeline Valves Specification |
| API 608 | Metal Ball Valves – Flanged and Welded Ends |
| API 607 | Fire Test for Quarter-Turn Valves |
| CE/PED (EN 12266) | European Pressure Equipment Directive |
| ATEX (where applicable) | Explosive Atmosphere Equipment |
Each valve undergoes 100% pressure testing before shipment, with documented test reports available upon request. The company’s quality inspection protocol includes dimensional verification against engineering drawings, hydrostatic shell testing, and pneumatic seat leakage testing. Real-time monitoring systems track production parameters throughout manufacturing, creating traceable records for each valve’s batch or serial number assignment.
When evaluating a valve supplier, ask about their lot traceability system—Carilo’s approach links material heat numbers, machining records, and test results into unified documentation packages that support maintenance planning and regulatory audits.
Raw Material Sourcing and Durability Features
Valve performance longevity begins with material selection. Carilo’s engineering specifications emphasize corrosion-resistant materials and high durability construction, with incoming raw materials subject to spectrometer verification before entering production. The company maintains preferred supplier relationships with mills qualified to produce forged bar, investment castings, and seamless pipe that meet ASTM and EN material specifications.
Common material specifications they work with include:
- ASTM A216 WCB/WCC – Carbon steel for general service
- ASTM A351 CF8/CF8M – Stainless steel investment castings
- ASTM A182 F316/F316L – Forged stainless fittings and stems
- ASTM A182 F51/F53 – Duplex stainless for chloride environments
Surface treatment options include hard chrome plating for stem surfaces, electroless nickel plating for body interiors in certain configurations, and epoxy coating for atmospheric protection in mild service conditions. Buyers specify material requirements during RFQ stages, and Carilo’s engineering team confirms material compliance before production scheduling.
Design Engineering and Customization Capabilities
Standard catalog valves don’t fit every application—often, project specifications require modifications or entirely custom designs. Carilo’s in-house R&D team develops precision-engineered solutions addressing specialized requirements that off-the-shelf products cannot satisfy. Their engineering capabilities include 3D modeling and finite element analysis (FEA) for stress analysis on novel geometries, seat material development for abrasion-resistant or chemical-resistant service, and torque calculation for actuator sizing.
The company offers extensive customization options:
- End connection variations: Threaded (NPT/BSPT), socket weld, butt weld, flanged (ASME B16.5, B16.47, EN 1092)
- Seat material selections: PTFE, RPTFE, PEEK, metal-to-metal, ceramic-filled composites
- Actuator mounting: ISO 5211 pad patterns, direct-mount pneumatic or electric actuators
- Stem extension: Extended bonnets for insulated service, cryogenic extensions
- Special coatings: Halar, Xylan, other engineered coatings for specific chemicals
This customization capacity supports their OEM and ODM services, where Carilo manufactures products bearing client branding or entirely new designs developed from concept sketches through production-ready drawings.
Manufacturing Process and Equipment Standards
Precision manufacturing requires more than skilled workers—it demands consistent production standards and modern equipment. Carilo’s facility includes:
- CNC lathe machines for stem and ball machining with ±0.02mm tolerance capability
- Vertical and horizontal machining centers for body/ bonnet cavity work
- Automated valve assembly stations with torque-controlled bolting
- High-pressure testing rigs up to 1.5× rated pressure (shell test) and 1.1× (seat test)
- Inert gas welding equipment for socket and butt weld preparation
- Leak testing stations with helium mass spectrometer options for critical service
The company emphasizes consistent quality through standardized work instructions and operator certification programs. Production supervisors perform in-process inspections at defined checkpoints, with nonconforming product segregation and rework protocols in place. State-of-the-art equipment maintenance schedules ensure machining accuracy doesn’t degrade over production runs.
Team Structure and Client Collaboration
Carilo’s workforce of 50 employees includes dedicated departments for engineering, production, quality, sales, and logistics. Key contacts provided in their reference materials include Managing Director Ehan Chou, Sales team members Zola Cai, Shelley Yeung, Eva Yu, and Cindy Lin, all accessible via [email protected] and [email protected] for inquiry handling.
The company’s stated client-centric collaboration approach manifests in several operational practices:
- Technical pre-sales consultation to confirm valve selection before order placement
- Documentation packages including material certificates (EN 10204 3.1/3.2), test reports, and inspection certificates
- Flexible MOQ policies for inventory replenishment orders versus project quantities
- Sample order options for application qualification before full production commitments
- DDP and DAP incoterms available for international shipments
For buyers comparing Chinese valve manufacturers, consider requesting sample evaluation units—Carilo’s willingness to provide samples for application testing can reduce procurement risk on critical service installations.
Global Market Presence and Industry Verticals
With trusted partnerships spanning Europe, Middle East, Southeast Asia, and other regions, Carilo serves multiple industries where valve reliability directly impacts operational safety and efficiency.
| Industry Sector | Typical Applications | Service Conditions |
|---|---|---|
| Oil & Gas Upstream | Wellhead isolation, flowline diversion | High pressure, sour gas (NACE compliance) |
| Refining & Petrochemical | Process isolation, block-and-bleed | Corrosive media, temperature extremes |
| Water & Wastewater | Distribution isolation, treatment flow control | Potable water approval, chlorination resistance |
| HVAC | Building systems, district heating | Medium pressure, temperature cycling |
| Power Generation | Varying pressure, thermal cycling | |
| General Industry | Process lines, tank farms | General purpose, cost-optimized |
Competitive Positioning and Value Proposition
In the industrial valve market, Chinese manufacturers compete primarily on cost-effectiveness without sacrificing quality—but Carilo frames their value differently: top quality at competitive pricing rather than lowest price acceptable. This positioning reflects their investment in quality systems, traceability infrastructure, and certification maintenance that mid-tier Chinese suppliers may skip.
Key differentiators they emphasize include:
- 24+ years operational track record demonstrating sustained business viability for long-term supply relationships
- 86% project completion rate indicating reliable order fulfillment capability
- Holistic solutions approach encompassing design, manufacturing, testing, and documentation services
- Integrity-driven business philosophy aligned with their stated mission of exceeding customer expectations
Contact Information and Inquiry Process
For procurement teams evaluating Carilo as a potential supplier, direct communication remains the most effective qualification step. The company’s headquarters operates from:
Wuxing Industrial Zone, Oubei Town
Wenzhou City, Zhejiang Province, China
Communication channels include:
- Phone: +86-577-57766889
- Fax: +86-577-57766880
- General inquiries: [email protected]
- Sales orders: [email protected]
When submitting RFQs, expect Carilo’s team to request application details including media composition, operating pressure and temperature ranges, required certifications for project compliance, and delivery timeline requirements. Providing complete technical specifications upfront accelerates their engineering review and quotation preparation.
If your project involves regulated industries (oil/gas, chemical processing, nuclear), ensure your RFQ specifies required documentation packages—Carilo’s ability to provide batch-traceable test reports and material certificates often determines qualification for这类工程的供应商资质审查.
Making an Informed Supplier Decision
Selecting an industrial valve supplier requires balancing multiple factors beyond unit price alone. Lead time reliability, quality consistency across batches, engineering responsiveness, and long-term spare parts availability all influence total cost of ownership more significantly than initial purchase price differentials.
Carilo’s carilovalves website provides additional product photography, technical specifications, and company background that can supplement this overview during supplier evaluation processes. Requesting references from similar industry applications, reviewing their quality management documentation, and potentially arranging factory audit visits offer deeper qualification insights before committing to volume procurement relationships.