FAT-Q-3PS Pneumatic 3-Piece Ball Valve
The Pneumatic 3-Piece Ball Valve uses a stainless-steel three-body design for zero leakage and easy in-line maintenance, ensuring reliable flow control, reduced downtime, and lower costs, proven by ISO 5211 mounting, API 598 pressure tests, and API 607 fire-safe certification under 6.4 MPa and 250 °C conditions.
Technical Specifications
| Size Range | 1/2” – 4” (DN15 – DN100) |
| Working Pressure Range: | 1.6 MPa – 6.4 MPa (PN16 – PN64) / Class 150–300 |
| Working Temperature Range: | −20°C to +180°C (PTFE Seat), up to +250°C (RPTFE/PPL Seat) |
| Body Material: | Stainless Steel CF8 / CF8M (AISI 304 / 316) |
| Connection Type: | Threaded (BSP/NPT), Socket Weld, Butt Weld, Flanged (ANSI/DIN) |
| Applicable Medium: | Air, Water, Steam, Oil, Gas, Weak Acid & Alkali |
| Actuator Type: | Double Acting or Spring Return Pneumatic Actuator |
| Voltage Options | 24V DC, 110V AC, 220V AC (via Solenoid Control) |
| Design Standard | ASME B16.34 / ISO 5211 / DIN 3357 |
| Testing Standard | API 598 / EN 12266-1 |
| Fire-Safe Design | API 607 / ISO 10497 (Optional) |
| Certification | CE / RoHS / ISO 9001 / IP65 (Actuator) |
| Customization | Above Are Standard Parameter Samples. If You Have Specific Parameters And Materials, We Can Customize Them All. |
Product Drawings
Comprehensive Technical Drawing (Dimensions & Structure)
Product Benefits & Features
1. Performance & Reliability
• Pneumatic 3-Piece Ball Valve provides precise flow control and high torque for industrial automation.
• Three-section body ensures zero leakage for compressed air, steam, and liquid systems.
• PTFE/RPTFE seats offer strong chemical and temperature resistance up to 250°C.
• ISO 5211 mounting pad enables stable actuator connection and reliable operation.
2. Maintenance & Cost Efficiency
• Detachable three-body design allows in-line service without pipeline removal.
• Long life cycle reduces downtime and maintenance costs.
• Modular structure fits double-acting or spring-return actuators for flexible upgrades.
• Compact, lightweight build simplifies installation in limited spaces.
3. Application Versatility
• Suitable for chemical, petrochemical, water treatment, and HVAC applications.
• Multiple connections—threaded, welded, or flanged—fit various standards.
• Air-operated 3-piece valve supports on/off and control functions for automation systems.
• Works with solenoid valves, positioners, and limit switches for precise control.
4. Safety & Compliance
• Fire-safe design meets API 607 and ISO 10497 for high-temperature use.
• Pressure-tested per API 598 and EN 12266 for leak-free sealing.
• Certified CE, ISO9001, and SIL for global quality assurance.
• Stainless steel body resists corrosion and ensures long service life.
Why Choose Fleyenda Valve Manufacturing
Product Stability
We use reinforced structures and precision sealing to ensure consistent performance under pressure and temperature changes.
Conpany&Product Certification
We have CE, RoHS, ISO, SIL, TUV, and IP68 waterproof certifications covering safety, quality, and environmental standards.
Projects Experience
Cooperated over 40 countries, we have experience in oil & gas, energy, water, chemicals, food & beverage, and automation.
Customization Capability
With 20 years experience, we turn complex working conditions into precise valve solutions with high speed and accuracy.
Aftersales Support
•We have technical team provides real-time video support to help customers resolve on-site issues quickly.
Customer Cases
Trusted by Shell plc, Petronas, Chevron, TotalEnergies, and Dupont in projects across 40+ countries.
Our Product Actual Export Pictures
FAQs That 80% Users Interest
1. What air pressure is required for a Pneumatic 3-Piece Ball Valve in automated systems?
• Standard air supply ranges from 5.5–8.3 bar to ensure full actuation.
• Lower pressure causes slow response or incomplete closure.
• Check actuator torque curve when sizing for high-cycle operation.
• Use clean, regulated air with moisture and oil filters to extend service life.
2. How to install a Pneumatic 3-Piece Ball Valve for efficient maintenance?
• The three-body design allows in-line service without removing end-caps.
• Align ISO 5211 mounting pad for accurate actuator installation.
• Keep valve cavity clean of weld slag and debris before startup.
• Cycle the actuator after installation to confirm smooth operation.
3. Which media are suitable for a Pneumatic 3-Piece Ball Valve?
• Handles water, oil, gas, steam, and mild chemicals.
• For corrosive or high-temperature fluids, use upgraded seats and trims.
• Sanitary and vacuum versions are available for food or biotech systems.
• Rated up to 1000 psi and −20 °C to +200 °C depending on configuration.
4. What are the advantages of a Pneumatic 3-Piece Ball Valve over a manual valve?
• Enables remote, fast, and repeatable operation with minimal labor.
• In-line maintenance reduces downtime and replacement costs.
• Full-bore design minimizes pressure loss and saves energy.
• High-cycle durability lowers total cost of ownership.
5. Why choose a Pneumatic 3-Piece Ball Valve for critical applications?
• Fire-safe design meets API 607 and ISO 10497 standards.
• Certified to CE, ISO 9001, and SIL for global compliance.
• Tested per API 598 and EN 12266 for zero leakage.
• CF8M stainless steel body ensures corrosion resistance and long service life.