Our pneumatic high-pressure three-way ball valves are powered by compressed air, with the valve stem driving the ball to rotate 90° within the valve body, enabling full open to full close operation. They can be controlled and positioned intelligently, compatible with electrical valve positioners, and can be controlled by inputting a 4-20mADC signal and a gas source of 0.4 to 0.7MPa. This allows for adjustments of parameters such as pressure, flow, temperature, and level. Pneumatic high-pressure three-way ball valves are categorized by their sealing performance into metal-seated and soft-seated types. They feature compact structure, small size, reliable operation, good sealing, ease of maintenance, convenient installation, and strong adaptability. These valves are particularly suitable for mediums that are thick, contain particles, or have fibrous properties. They are widely used in automatic control systems in industries such as petroleum, chemical, educational equipment, light industry, high-pressure equipment, and papermaking, serving for remote centralized or local control.

Pneumatic High Pressure Three-Way Ball Valve - Technical Parameters and Performance
| Nominal Pipe Size (mm) | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Valve body style | Overall forged valve bodies (DN50 and below), three-section forged valve bodies (above DN50) | |||||||||||
| Nominal Pressure | PN16.0、25.0 MPa;ANSI 150、300、600、900LB | |||||||||||
| Form of Connection | Flanged,焊接式,Threaded (suitable for PN45MPa and below) | |||||||||||
| Sealing Gasket | V-shaped polytetrafluoroethylene packing, flexible graphite packing, etc. | |||||||||||
| Valve core type | O-ring ball valve core | |||||||||||
| Flow characteristics | Approximate Quick-Release Feature | |||||||||||
| Motion Range | 0~90°、0~360° | |||||||||||
| Leakage Quantity Q | In accordance with GB/T4213-92, less than rated KV 0.01% | |||||||||||
| Configuration Actuator | GT, AT, AR, AW Series Double-acting and Single-acting Pneumatic Actuators | |||||||||||
| Control Method | Two-position switch control for power, 4-20mA analog signal control | |||||||||||
Pneumatic High-Pressure Three-Way Ball Valve Actuator Parameters
| Actuator Model | GT, AT, AR, AW Series Double-acting and Single-acting Pneumatic Actuators |
|---|---|
| Gas Pressure | 0.4~0.7MPa |
| Gas Source Interface | G1/4"、G1/8"、G3/8"、G1/2" |
| Ambient Temperature | -30~+70℃ |
| Function form | Single-acting actuator: Gas-closed (B) -- valve position open (FO) when gas is lost; Gas-open (K) -- valve position closed (FC) when gas is lost Double-acting actuator: Gas-closed type (B) – Valve position maintained (FL) when gas is lost; Gas-open type (K) – Valve position maintained (FL) when gas is lost. |
| Available accessories | Locators, solenoid valves, air filter regulators, hold-open valves, limit switches, position transmitters, handwheels, etc. |
Pneumatic High Pressure Three-Way Ball Valve - Parts Material
| Part Name | Materials | |||
|---|---|---|---|---|
| Valve body, valve cover | A105 | 304(CF8) | 316(CF8M) | 316L(CF3M) |
| Sphere | 2Cr13 + Nitriding treatment | 304 | 316 | 316L |
| Valve Stem | 2Cr13 | 304 | 316 | 316L |
| Valve seat sealing ring | PTFE, Carbon Fiber + PTFE, Para-Phenylene Ether | |||
| Filling Material | V-shaped PTFE, flexible graphite | |||
Pneumatic High Pressure Three-Way Ball Valve - Performance Specifications
| Nominal Pipe Size (mm) | DN15-300 | |||||
|---|---|---|---|---|---|---|
| Nominal Pressure | PN(MPa) | 10.0 | 16.0 | 25.0 | 32.0 | 42.0 |
| Test Pressure | Strength Test | 15.0 | 24.0 | 37.5 | 48.0 | 63.0 |
| Seal Test | 11.0 | 17.6 | 27.5 | 35.2 | 46.2 | |
| Low-pressure Airtightness Test | 0.5~0.7 | |||||
| Applicable Medium | Water, oil, steam, nitric acid compounds (temperature ≤ 200℃), acetic acid compounds (temperature ≤ 200℃) | |||||
Pneumatic High Pressure Three-Way Ball Valve Product Selection
(1) Valve Body Parameters: Nominal Bore Size, Working Pressure, Process Medium, Application, Valve Body Material, and a series of other parameters.
(2) Actuator Parameters: Actuator Type, Control Method, Control Signal (4-20mA, 1-5V), Operating Mode (Air-Open, Air-Close)
Please provide as detailed technical specifications as possible for our production and technical team to accurately select the right products for you. Should you have any questions, feel free to call us, and we will strive to provide you with excellent service!




