Pneumatic PTFE-lined ball valves use a pneumatic actuator as a power source. The valve body is lined with fluoroplastics (such as PTFE, FEP, PFA). Compressed air drives the PTFE-lined ball to rotate 90 degrees, achieving automated shut-off/connection of highly corrosive media (such as concentrated acids, concentrated alkalis, and organic solvents).
Its core advantage lies in the dual function of "pneumatic control + PTFE corrosion resistance": pneumatic drive ensures rapid automated response (action time ≤ 5 seconds), and the PTFE lining (typically 2mm~5mm thick) possesses excellent chemical stability, resisting the erosion of most highly corrosive media and preventing corrosion damage to the metal valve body.
Compared to ordinary pneumatic ball valves, GNEE pneumatic PTFE-lined ball valves have extremely strong corrosion resistance, making them suitable for highly corrosive environments; compared to electric PTFE-lined ball valves, GNEE pneumatic PTFE-lined ball valves require no electricity, making them more suitable for flammable, explosive, and highly corrosive environments.
GNEE Group's pneumatic PTFE lined ball valves comply with industry standards such as GB/T 12237 and HG/T 3704, ensuring the bonding strength of the PTFE lining and the reliability of pneumatic control. Contact us to obtain drawings of pneumatic PTFE lined ball valves.
Pneumatic PTFE Lined Ball Valve Specifications
- Nominal Diameter: DN15～DN300
- Structure: Spherical
- Nominal Pressure: 1.6Mpa～6.4Mpa
- Connection Method: Flange
- Applicable Temperature: ≤150℃
- Actuation Method: Manual, Pneumatic, Electric
- Valve Body Material: Cast Steel, Stainless Steel
- Manufacturing Standard: GB (Chinese National Standard), DIN (German Standard), API (American Standard), ANSI (American Standard)
- Applicable Media: Water, Oil, Gas, Heat Transfer Oil, Liquid
pneumatic PTFE lined ball valve design standard
| Design and manufacturing | GB12237-89,API608,API 6D,JPI 7S-48,BS5351,DIN3357 |
|---|---|
| Flange size | JB/T74～90,GB9112～9131,HGJ44～76,SH3406,ANSI B16.5,JIS B2212～2214,DIN2543 |
| Structural length | GB12221-89,ANSI B16.10,JIS B2002,NF E29-305,DIN3202 |
| Inspection and testing | JB/T 9092,API 598,GB/T13927 |
Pneumatic PTFE lined ball valve - Technical parameters
| Parameter | Value |
|---|---|
| Nominal Diameter DN (mm) | 15～300 |
| Nominal Pressure (MPa) | PN1.0, 1.6 MPa |
| Valve Body Type | Two - piece Valve Body (Floating Ball, Fixed Ball) |
| Connection Type | Flanged |
| Valve Core Type | "O" - type Ball - shaped Valve Core |
| Sealing Packing | Polytetrafluoroethylene (PTFE) |
| Flow Characteristics | Approximately Quick - Opening Type |
| Actuation Range | 0～90° |
| Leakage Quantity Q | Soft Seal: Zero Leakage |
| Applicable Temperature | PTFE≤180℃ |
| Basic Error | With Positioner: Less than ±2% of Full Stroke |
| Dead Band | With Positioner: Less than 2% of Full Stroke |
| Adjustable Range | 250:1 |
| Configured Actuator | GT, AT, AR, AW Series Single - and Double - Acting Pneumatic Actuators |
| Control Mode | On - off Two - position Control, 4 - 20mA Analog Control |
Pneumatic PTFE lined ball valve performance characteristics
- High corrosion resistance: The valve body cavity and valve body components are lined with 2.5~3mm thick F46 material, which can resist strong corrosive media such as acids and alkalis, and can resist the corrosion of almost all media (including concentrated nitric acid and aqua regia).
- Excellent sealing performance: The sealing valve seat is made of materials such as polytetrafluoroethylene, which has reliable sealing and self-lubricating properties, and low leakage.
- Easy to operate: The valve stem is moved up and down by a pneumatic actuator to open and close the valve. Both single-acting and double-acting actuators are available, allowing for valve opening, closing, or position holding in case of air loss.
- Low fluid resistance: Full-bore design ensures smooth medium flow and low flow resistance.
- Long service life: The valve body has a reasonable structure and is made of high-quality materials, which has high anti-aging performance and a long service life.
- Wide range of applications: Suitable for automatic adjustment and remote control systems in industries such as food, environmental protection, light industry, petroleum, papermaking, chemical, textile, and power, especially suitable for handling high viscosity media and media containing fibrous and suspended soft particles.
Pneumatic PTFE lined ball valve factory
GNEE Group offers valve customization services; send us your drawings and we'll make them to order.