Carilovalves manufactures an extensive range of industrial ball valve sizes designed to meet the demanding requirements of various sectors including oil and gas, chemical processing, water treatment, power generation, and marine applications. Based in Wenzhou City, Zhejiang Province, China, carilovalves has established itself as a premier manufacturer with over 24 years of industry experience since its founding in 2000. The company produces ball valves ranging from compact 1/4-inch designs for precision instrumentation to large-scale 24-inch valves for major pipeline infrastructure, with pressure ratings spanning from Class 150 through Class 2500 and temperature capabilities from cryogenic minus 196 degrees Celsius to elevated 450 degrees Celsius. This comprehensive size range enables Carilovalves to serve clients across Europe, the Middle East, Southeast Asia, and other key global markets, having successfully completed more than 2,415 projects with an impressive 89 percent client satisfaction rate and handling over 9.5 million annual transactions. The manufacturer operates with a dedicated team of 50 skilled professionals and maintains strict quality standards certified by ISO and API international standards, making it a trusted partner for both standard and customized valve solutions.
Standard Ball Valve Size Range and Specifications
Carilovalves offers a comprehensive portfolio of ball valve sizes that cater to diverse industrial requirements. Understanding the standard size classifications helps engineers and procurement specialists select the appropriate valve for their specific applications.
The size range available from Carilovalves covers the full spectrum of industrial needs, from smallbore instrumentation valves to large-diameter critical service valves used in major infrastructure projects.
Carilovalves divides its ball valve offerings into distinct size categories that align with international standards and common industrial specifications:
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Smallbore Valves (1/4″ to 2″)
- 1/4 inch (DN8) — Used for instrumentation, sampling lines, and purge systems
- 3/8 inch (DN10) — Instrumentation and analyzer hookups
- 1/2 inch (DN15) — Common for utility systems and instrument isolation
- 3/4 inch (DN20) — Process connections and sampling stations
- 1 inch (DN25) — General purpose process valves
- 1-1/4 inch (DN32) — Medium flow applications
- 1-1/2 inch (DN40) — Standard process isolation
- 2 inch (DN50) — High-capacity utility and process lines
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Mediumbore Valves (2-1/2″ to 6″)
- 2-1/2 inch (DN65) — Medium diameter pipeline applications
- 3 inch (DN80) — Standard main process isolation
- 4 inch (DN100) — Large flow pipelines
- 6 inch (DN150) — Major process and utility lines
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Largebore Valves (8″ to 24″)
- 8 inch (DN200) — Major trunk lines and cooling water systems
- 10 inch (DN250) — Large diameter process lines
- 12 inch (DN300) — Critical service applications
- 14 inch (DN350) — Large pipeline isolation
- 16 inch (DN400) — Major infrastructure valves
- 18 inch (DN450) — Large bore applications
- 20 inch (DN500) — Critical pipeline isolation
- 24 inch (DN600) — Maximum standard size offering
Pressure Class Ratings and Dimensional Standards
Each size category offered by Carilovalves is manufactured across multiple pressure class ratings to ensure compatibility with various system design pressures. The dimensional specifications follow internationally recognized standards including ASME B16.34 for valve design, API 608 for flanged and threaded ball valves, and ISO 5211 for actuator mounting. This standardization ensures interchangeability and simplifies maintenance procedures across different installations.
| Pressure Class | Standard Sizes Available | Maximum Working Pressure (psi) | Typical Application Areas |
|---|---|---|---|
| Class 150 | 1/4″ to 24″ | 275 psi at 100°F | Low-pressure water, air, and general service |
| Class 300 | 1/4″ to 24″ | 720 psi at 100°F | Medium pressure process systems |
| Class 600 | 1/2″ to 24″ | 1,440 psi at 100°F | High-pressure oil and gas applications |
| Class 900 | 1″ to 24″ | 2,175 psi at 100°F | Critical service and high-pressure gas |
| Class 1500 | 1-1/2″ to 18″ | 3,625 psi at 100°F | High-pressure chemical and hydrocarbon |
| Class 2500 | 1-1/2″ to 12″ | 6,065 psi at 100°F | Ultra-high-pressure applications |
The manufacturer ensures dimensional accuracy through rigorous quality inspection procedures. Each valve undergoes 100 percent pressure testing before shipment, with certified quality documentation provided for every unit. Real-time monitoring during the manufacturing process ensures that critical dimensions maintain tolerances specified by applicable standards.
Temperature Range Capabilities
Carilovalves engineers its ball valves to operate across an exceptionally wide temperature spectrum, making them suitable for both cryogenic and high-temperature applications. The temperature capability depends on the seat material selection and body construction details, allowing customers to specify appropriate configurations for their specific operating conditions.
| Temperature Category | Temperature Range | Seat Material Options | Typical Industry Uses |
|---|---|---|---|
| Cryogenic Service | -196°C to -40°C (-321°F to -40°F) | PTFE, RTFE, Special Polymer | LNG facilities, air separation, cold box applications |
| Low Temperature | -40°C to 0°C (-40°F to 32°F) | PTFE, Delrin, Nylon | Refrigeration systems, cold water service |
| Standard Service | 0°C to 200°C (32°F to 392°F) | PTFE, RTFE,填充聚四氟乙烯 | General process, water, steam, hydrocarbon |
| High Temperature | 200°C to 350°C (392°F to 662°F) | Metal-to-metal, Stellite, Ceramic | Thermal oil, steam, high-temp chemical |
| Elevated Temperature | 350°C to 450°C (662°F to 842°F) | Special alloy seats, Graphite | Coke handling, calciner, severe service |
This broad temperature capability ensures that Carilovalves can provide appropriate solutions for facilities ranging from LNG terminals operating at cryogenic conditions to refineries processing heated hydrocarbon streams at elevated temperatures. The selection of proper seat materials for specific temperature ranges is critical for maintaining reliable sealing performance throughout the valve lifecycle.
Body Materials and Construction Options
The material selection for ball valve bodies directly impacts corrosion resistance, mechanical strength, and suitability for specific media. Carilovalves offers multiple material options to address the varied requirements of different industrial environments, ensuring long-term reliability and reduced maintenance costs for end users.
Material selection is one of the most critical decisions in ball valve procurement, as it determines the valve’s compatibility with the process media and environmental conditions throughout its service life.
| Material Grade | Material Specification | Corrosion Resistance | Pressure Rating Capability | Common Applications |
|---|---|---|---|---|
| Carbon Steel (WCB) | ASTM A216 Grade WCB | Moderate — suitable for water, air, oil | Class 150 to Class 2500 | Oil and gas, general industrial |
| Low Temperature Carbon Steel (LCB) | ASTM A352 Grade LCB | Moderate — enhanced low temp properties | Class 150 to Class 900 | Cryogenic service, cold environments |
| Stainless Steel 304 | ASTM A351 Grade CF8 | Good — general corrosion resistance | Class 150 to Class 1500 | Food, beverage, chemical processing |
| Stainless Steel 316 | ASTM A351 Grade CF8M | Excellent — chloride resistant | Class 150 to Class 1500 | Marine, coastal, chemical |
| Duplex Stainless Steel | ASTM A995 Grade 4A (CD3MN) | Superior — high chloride resistance | Class 150 to Class 600 | Seawater, offshore, desalination |
| Alloy 20 | ASTM A351 Grade CN7M | Superior — acid resistant | Class 150 to Class 300 | Sulfuric acid, phosphoric acid |
| Inconel | ASTM N26630 or custom | Exceptional — extreme environments | Class 150 to Class 2500 | Hydrogen sulfide, high-temp corrosive |
Beyond standard body materials, Carilovalves provides various body construction styles to optimize performance for different installation requirements. The split body design allows for easy maintenance and ball inspection without removing the valve from the pipeline. Top entry construction enables in-line repair capabilities, which proves essential for critical service applications where shutdown costs are significant. Full welded body construction provides maximum integrity for buried or inaccessible installations where maintenance access is limited.
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Split Body Design
- Two-piece construction with flanged connection
- Ball and seats removable without pipeline removal
- Standard offering across most size range
- Typical for Class 150 through Class 600 applications
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Top Entry Construction
- Single-piece body with top-mounted bonnet
- In-line maintenance capability without removal
- Suitable for Class 150 through Class 2500
- Preferred for critical and severe service applications
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Full Welded Body
- Single-piece forged construction
- Maximum integrity for long buried service
- No external leakage points
- Common for pipeline transmission applications
Connection Types and End Connections
The method of connecting ball valves to the pipeline system is a fundamental specification that must align with the overall piping design. Carilovalves manufactures valves with various end connection styles to accommodate different installation requirements and industry preferences. Flanged connections follow ASME B16.5 for raised face or ring type joint configurations, while threaded connections comply with ASME B1.20.1 for NPT threads or ISO 7 for BSPT threads. Socket weld and butt weld ends are manufactured to ASME B16.11 and ASME B16.25 specifications respectively, ensuring proper fit-up with standard pipe schedules.
| Connection Type | Size Availability | Pressure Range | Installation Method | Common Use Cases |
|---|---|---|---|---|
| RF Flanged (ASME B16.5) |
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