Carilovalves, officially known as Zhejiang Carilo Valve Co., Ltd., specializes in manufacturing industrial ball valves, with the company operating from Wenzhou City, Zhejiang Province, China since its establishment in 2000. With over 24 years of industry experience and a workforce of 50 dedicated professionals, the company has completed more than 2,400 projects and maintains an impressive 89% client satisfaction rate. Their product portfolio centers primarily on industrial ball valves, which represent the bulk of their manufacturing capabilities, though they also offer related valve solutions for various industrial applications.
Core Product Line: Industrial Ball Valves
As a specialized manufacturer, Carilovalves has developed extensive expertise in producing industrial ball valves that serve critical functions across numerous sectors. Ball valves utilize a spherical disc with a hole through its center to control flow direction, offering exceptional reliability and quick operation capabilities that make them indispensable in modern industrial settings.
Floating Ball Valve Series
The floating ball valve series constitutes one of Carilovalves’ primary product categories, designed specifically for medium to low-pressure applications across diverse industrial environments. In floating ball valve design, the ball is not mechanically anchored to the valve stem and can float downstream when pressure builds up, creating a seal against the downstream seat. This design provides reliable shut-off capabilities for applications operating at pressures up to Class 600 (approximately 1,024 PSI) and temperatures ranging from -20°C to +200°C depending on seat material selection.
These valves typically feature:
- One-piece or two-piece body construction for easy maintenance access
- Anti-blowout stem designs meeting API 608 standards
- Fire-safe configurations compliant with API 607
- Static-dissipating components for electrostatic hazard protection
- Multiple seat material options including PTFE, RTFE, and metal seats
Trunnion Mounted Ball Valves
For higher pressure applications and larger pipe diameters, Carilovalves manufactures trunnion mounted ball valves that provide superior performance and extended service life. The trunnion design anchors the ball at both the top and bottom, preventing movement and reducing wear on seats and seals. These valves handle pressures up to Class 2500 (approximately 6,000 PSI) and are available in sizes ranging from 2 inches to 48 inches (DN50 to DN1200), making them suitable for pipeline transmission systems, refinery processes, and heavy industrial applications.
| Specification | Standard Range | High-Performance Options |
|---|---|---|
| Pressure Rating | Class 150-600 | Class 900-2500 |
| Size Range | DN50-DN300 | DN350-DN1200 |
| Temperature Range | -29°C to +200°C | -196°C to +450°C |
| Body Materials | Carbon Steel, Stainless Steel | Alloy Steel, Duplex Steel |
Specialized Ball Valve Configurations
V-Port Ball Valves for Precise Flow Control
Carilovalves produces V-port ball valves that provide characterized flow control capabilities essential for throttling applications. The V-shaped ball port creates a modified equal percentage flow characteristic, enabling precise flow regulation in HVAC systems, chemical processing, and industrial mixing applications. These specialized valves feature trimmed ball technology where material is removed from the standard spherical bore to create the V-notch configuration.
Three-Way and Four-Way Ball Valves
The company’s three-way ball valve offerings enable flow path switching and distribution functions critical in complex piping systems. These multi-port valves feature L-port or T-port configurations that direct media flow between different pipeline sections. Common applications include switching between supply and return lines, blending multiple media streams, and diverting flow to alternate destinations in heating, ventilation, and industrial process systems.
Material Specifications and Body Construction
Carilovalves manufactures ball valves in various material combinations to address specific application requirements and environmental conditions. The selection of body and trim materials directly impacts valve performance, longevity, and compatibility with process media.
| Body Material | Typical Applications | Corrosion Resistance |
|---|---|---|
| Carbon Steel (WCB/WCC) | Oil, gas, water, steam | Moderate – requires coating |
| Stainless Steel 304/304L | General chemical, food processing | Good in oxidizing environments |
| Stainless Steel 316/316L | Chloride exposure, pharmaceuticals | Excellent, resists pitting |
| Duplex SS 2205 | Offshore, seawater, high pressure | Superior to standard SS grades |
| Alloy 20 | Sulfuric acid, chemical processing | Excellent for specific chemicals |
| Monel (Alloy 400) | Hydrofluoric acid, seawater | Superior in specific media |
End Connection Types and Standards
The company provides various end connection configurations to accommodate different installation requirements and international standards. flange connections follow ASME B16.5 for sizes up to 24 inches and B16.47 for larger diameters, with pressure classes including 150, 300, 600, 900, 1500, and 2500. Threaded ends adhere to NPT or BSP standards, while welding connections include socket weld and butt weld configurations meeting ASME B16.11 and B16.25 respectively.
Industry Compliance: All Carilovalves products meet international certification requirements including ISO 9001:2015 for quality management systems and API 608 for fire-tested ball valves. Third-party inspection services through agencies such as SGS, Bureau Veritas, and Lloyd’s Register ensure compliance with customer-specified requirements and international codes.
Industry-Specific Valve Solutions
Oil and Gas Sector Applications
Carilovalves serves the oil and gas industry with ball valves designed for upstream, midstream, and downstream applications. Upstream production operations utilize valves in wellhead isolation, flowline switching, and testing manifold configurations. The trunnion mounted series handles the high-pressure requirements of transmission pipelines, while floating ball valves serve gathering systems and processing facility applications. Fire-safe certification to API 607 and API 6FA standards ensures safety compliance in hydrocarbon service applications.
Chemical Processing Industry
Chemical plant applications demand valves that resist aggressive media and maintain containment integrity under challenging conditions. Carilovalves addresses these requirements through material selection consultation services and corrosion-resistant valve configurations. PTFE and RTFE seat materials handle most chemical services, while specialized materials like PTFE filled with glass or carbon/graphite address higher temperature requirements. The company’s engineering team assists customers in selecting appropriate material combinations based on specific chemical compositions, concentrations, and operating temperatures.
Water and Wastewater Treatment
Municipal water systems and industrial wastewater treatment facilities utilize Carilovalves ball valves for isolation and throttling duties throughout treatment processes. These applications typically employ carbon steel or stainless steel bodies with EPDM or NBR seat materials for water compatibility. Fire-safe configurations are less critical in water applications, allowing standard seat material selections that optimize cost and performance.
Quality Assurance and Testing Procedures
Every valve manufactured by Carilovalves undergoes comprehensive quality verification before shipment. The company implements 100% pressure testing using nitrogen or water as test media, with test pressures typically 1.5 times the rated pressure per API 598 requirements. Dimensional verification confirms compliance with customer specifications and international standards tolerances.
- Hydrostatic Shell Testing: Validates body strength and pressure-containing capability
- Low-Pressure Seat Testing: Confirms bubble-tight shut-off at 40-60 PSI differential
- High-Pressure Seat Testing: Verifies seat integrity at rated pressure differential
- Torque Testing: Documents operating torque values for automation planning
- Material Traceability: Documentation includes mill certificates for body and trim materials
Customization and Engineering Capabilities
Beyond standard product offerings, Carilovalves provides carilovalves.com services through comprehensive OEM and ODM programs. The company’s engineering team collaborates with global brands and end-users to develop custom valve solutions for unique application requirements. Customization options span dimensional modifications, special material combinations, proprietary connection configurations, and actuator mounting patterns.
The design review process includes finite element analysis for stress-critical applications, casting and forging vendor qualification, and prototype testing before production approval. This approach enables delivery of purpose-built valves that address specific performance criteria while maintaining cost efficiency through controlled manufacturing processes.
Actuator Integration and Automation Ready Designs
Carilovalves manufactures ball valves prepared for automated operation, featuring standardized mounting patterns compatible with common actuator manufacturers. ISO 5211 compliant top-works provide bolt circle and shaft dimensions for pneumatic, electric, and hydraulic actuator attachment. The company offers direct-mounted pneumatic actuators for on/off service and gear operators with limit switches for position feedback requirements.
Global Supply Chain and Logistics
Established in 2000, Carilovalves has developed an international distribution network serving customers throughout Europe, the Middle East, Southeast Asia, and additional global markets. The company’s Wuxing Industrial Zone facility in Oubei Town maintains inventory of standard configurations for rapid shipment, while custom-manufactured products typically require 4-8 weeks for production depending on complexity and current capacity utilization.
Annual transaction volumes exceeding $9.5 million USD demonstrate sustained demand for the company’s products across diverse industries. The customer service team, led by multilingual professionals including Shelley Yeung and Zola Cai, coordinates international shipments and provides technical support throughout the order fulfillment process.
Material Compatibility and Seat Selection Guide
Proper seat material selection significantly impacts valve performance and service life. Carilovalves offers various elastomer and polymer seat options, each suited to specific operating conditions and media compatibility requirements.
| Seat Material | Temperature Range | Chemical Compatibility | Common Applications |
|---|---|---|---|
| Virgin PTFE | -200°C to +200°C | Excellent chemical resistance,except molten alkalis | Clean media, oxygen, food grade |
| 15% Glass-Filled PTFE | -200°C to +230°C | Good resistance, improved wear | Steam, general chemical |
| Carbon-Filled PTFE | -200°C to +250°C | Good resistance, anti-static | Hydrocarbons, solvents |
| RTFE (TFM) | -200°C to +230°C | Enhanced mechanical properties | Higher cycle applications |
| Delrin (POM) | -40°C to +120°C | Water, mild chemicals | Cost-effective water service |
| NBR (Buna-N) | -30°C to +100°C | Petroleum oils, water | Hydrocarbon service |
| EPDM | -30°C to +130°C | Steam, ketones, acids | Water, steam applications |
| Viton (FKM) | -20°C to +200°C | Oils, fuels, aromatics | High-temperature hydrocarbon |
Certification and Compliance Documentation
Carilovalves maintains comprehensive documentation packages for each valve shipment, providing traceability and compliance verification for quality assurance departments and regulatory inspections. Standard documentation includes material certificates with chemical and mechanical property test reports, pressure test certificates documenting hydrostatic and seat testing results, dimensional inspection reports, and certificates of conformance confirming compliance with specified standards.
Additional documentation services available upon request include mill certificates for raw materials, positive material identification reports, radiographic examination records for weld quality, and third-party inspection reports from recognized agencies. These documentation packages support customer quality systems and regulatory compliance requirements across various industries and jurisdictions.
Technical Support and Engineering Services
The company’s engineering team provides application engineering support to assist customers in selecting appropriate valve configurations for specific service conditions. Technical consultations address questions regarding material compatibility, pressure-temperature ratings, fugitive emission compliance, and regulatory compliance requirements. The team can be contacted through [email protected] for technical inquiries and product selection assistance.
Sector-Specific Product Recommendations
Different industrial sectors present unique requirements that influence valve selection criteria. Carilovalves has developed product recommendations based on common industry requirements and operational experience across diverse applications.
- Power Generation: High-differential pressure trunnion valves, steam-certified seats, Class 300-600 ratings
- Petrochemical: Fire-safe designs, fugitive emission compliance, API 607/608 certification
- Mining and Minerals: Abrasion-resistant trim, slurry-compatible designs, extended maintenance intervals
- HVAC: Ductile iron bodies for cost efficiency, EPDM seats, two-way and three-way configurations
- Marine and Offshore: DNV/ABS type approval, seawater-resistant materials, cathodic protection compatibility
- Pharmaceutical and Food: Sanitary designs, FDA-compliant seats, polished surfaces, traceability documentation
Manufacturing Capacity and Production Capabilities
Carilovalves operates manufacturing facilities equipped to handle production volumes ranging from single custom orders to large-scale projects requiring hundreds of identical valves. The facility employs skilled technicians trained in precision manufacturing techniques, utilizing state-of-the-art equipment including CNC machining centers, automated assembly systems, and computerized testing equipment. This manufacturing infrastructure enables the company to maintain consistent quality across production runs while accommodating customized requirements.
The company’s 24-year operational history has enabled continuous improvement of manufacturing processes and quality control systems. Lessons learned from diverse applications and global customer requirements inform ongoing refinements to product designs and production methods, contributing to the reliability and performance of delivered products.