Pneumatic flange ball valve Description
A pneumatic flanged ball valve is a ball valve equipped with a pneumatic actuator. The actuator operates relatively quickly and does not require manual labor, thereby saving significant manpower and time. Pneumatic flanged ball valves have evolved from gate valves. They share the same 90-degree rotation operation, but the plug body is a sphere with a circular bore or passage through its axis. The ratio of the spherical surface to the port should be such that when the ball rotates 90 degrees, the entire spherical surface is exposed at the inlet and outlet, thus completely cutting off the flow.
GNEE Group specializes in the production of pneumatic flanged ball valves. Please contact us to obtain the drawings.
Pneumatic flange ball valve specification
| Parameter | Specification |
|---|---|
| Nominal Diameter | 10mm～1000mm and 1/2"～60" |
| Nominal Pressure | 1.0MPa～16.0MPa / 150Lb～1500Lb / 10K～160K |
| Operating Temperature | -196℃～700℃ |
| Applicable Standards | GB, DIN, API, ANSI, JIS, BS etc. |
| Valve Body Material | Carbon Steel, Stainless Steel, Alloy Steel, Ultra-Low Carbon Stainless Steel, Titanium Alloy, High-Nickel Alloy, Monel Alloy, etc. |
| Drive Method | (Manual, Worm Gear Transmission, Bevel Gear, Electric, Pneumatic, Hydraulic, etc. |
Pneumatic Flanged Ball Valve - Material Specifications
| Part Name | Material | |||
|---|---|---|---|---|
| Valve Body | WCB | 304(CF8) | 316(CF8M) | 316L(CF3M) |
| Ball | 2Cr13 + Nitriding Treatment | 304 | 316 | 316L |
| Stem | 2Cr13 | 304 | 316 | 316L |
| Seat Seal Ring | PTFE (Polytetrafluoroethylene), PPL (Para-Phenylenediamine), Metal Seal (Hard Alloy) | |||
| Stuffing Box Packing | V-Shape PTFE Teflon Packing, Flexible Graphite | |||
Pneumatic Flanged Ball Valve - Performance Specifications
| Nominal Diameter DN(mm) | DN15-300 | |||||
|---|---|---|---|---|---|---|
| Nominal Pressure | PN(MPa) | 1.0 | 1.6 | 2.5 | 4.0 | 6.4 |
| Test Pressure | Strength Test | 1.5 | 2.4 | 3.75 | 6.0 | 9.60 |
| Seal Test | 1.1 | 1.76 | 2.75 | 4.4 | 7.04 | |
| Low-Pressure Air Tightness Test | 0.5～0.7 | |||||
| Applicable Media | Water, Oil, Steam, Nitric Acid Class (Temperature ≤ 200℃), Acetic Acid Class (Temperature ≤ 200℃) | |||||
Pneumatic Flanged Ball Valve Working Principle
Opening Process:
Compressed air enters the cylinder through an electromagnetic valve, pushing the piston to move and rotate the ball 90°, aligning the bore with the pipeline for medium flow.
Closing Process:
Compressed air enters the cylinder in reverse, causing the piston to reset and rotate the ball 90° to close the bore, blocking the medium flow.
Modulating Function (Optional):
When equipped with a positioner, the ball opening can be precisely controlled by an input signal (e.g., 4-20mA) to achieve flow regulation.
Pneumatic Flanged Ball Valve Features
Rapid Response: Pneumatic drive has a short response time (typically ≤1 second), suitable for scenarios requiring quick shut-off or regulation.
High Reliability: Simple structure with few components results in a low failure rate.
Excellent Sealing Performance: Resistant to high pressure and corrosion, suitable for harsh operating conditions.
Automation Integration: Can be seamlessly integrated with PLC, DCS, and other control systems for remote monitoring and automated operation.
Easy Installation: Flanged connection simplifies the installation process, eliminating the need for additional welding or threading.
Safety Protection: Equipped with explosion-proof design, suitable for flammable and explosive environments. Optional manual operation devices allow manual control in case of power failure.
Pneumatic Flanged Ball Valve Applications
Petrochemical Industry:
Controls the conveyance of crude oil, natural gas, and chemical raw materials, preventing leakage and explosion hazards.
Power Industry:
Regulates the flow of media such as steam and water, ensuring the safe operation of equipment like boilers and turbines.
Water Treatment:
Controls the on/off state of sewage and purified water pipelines, enabling automated dosing and backwashing.
Pharmaceutical and Food Industries:
Used in clean pipeline systems to ensure media contamination-free and compliance with GMP standards.
Metallurgy and Papermaking:
Controls the flow of high-temperature, high-pressure media, adapting to harsh industrial environments.
Pneumatic Flanged Ball Valve factory
GNEE Group owns hundreds of valve production and testing equipment, and provides customized valve services-send us your drawings, and we'll tailor-make them for you.
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