Our Q661N pneumatic high-pressure welding ball valves, made of stainless steel, are powered by compressed air. The valve stem drives the valve core 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. By inputting a 4-20mADC signal and a 0.4-0.7MPa air source, they can control operation and adjust parameters such as pressure, flow rate, temperature, and liquid level. The Q641N pneumatic high-pressure flanged ball valve is divided into metal sealed and soft sealed types based on its sealing performance. The Q661N pneumatic high-pressure welding ball valve boasts compact structure, small size, reliable operation, good sealing, easy maintenance, convenient installation, and strong adaptability. These ball 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 oil, chemicals, educational equipment, light industry, high-pressure equipment, and papermaking, for either remote centralized control or on-site control.
Pneumatic High-Pressure Welding Ball Valve - Technical Parameters and Performance
| Nominal Bore Diameter DN (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 (DN50 and above) | |||||||||||
| Nominal Pressure | PN16.0、25.0 MPa；ANSI 150、300、600、900LB | |||||||||||
| Form of Connection | Flanged, welded, and threaded (suitable for PN45MPa and below) | |||||||||||
| Sealed packing material | V-shaped polytetrafluoroethylene packing, flexible graphite packing, etc. | |||||||||||
| Valve Core Type | O-ring ball valve core | |||||||||||
| Flow characteristics | Approximate quick release feature | |||||||||||
| Action 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 Welding Ball Valve Actuator Parameters
| Actuator Model | GT, AT, AR, AW Series Double-acting and Single-acting Pneumatic Actuators |
|---|---|
| Supply Pressure | 0.4～0.7MPa |
| Gas Source Interface | G1/4"、G1/8"、G3/8"、G1/2" |
| Ambient temperature | -30～+70℃ |
| Functionality | Single-acting actuator: Gas-closed type (B) -- valve position open (FO) when air is lost; Gas-open type (K) -- valve position closed (FC) when air is lost. Double-acting actuator: Gas-closed type (B) - valve position held (FL) when gas is lost; Gas-open type (K) - valve position held (FL) when gas is lost |
| Available accessories | Locators, solenoid valves, air filter regulators, holding valves, stroke switches, valve position transmitters, handwheel mechanisms, etc. |
Pneumatic High Pressure Welding 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 seal ring | PTFE, Carbon Fiber + PTFE, Para-Phenylene Ether | |||
| Filling Material | V-shaped PTFE, flexible graphite | |||
Pneumatic High-Pressure Welding Ball Valve - Performance Specifications
| Nominal Bore Diameter DN (mm) | DN15-300 | |||||
|---|---|---|---|---|---|---|
| Nominal Pressure | PN(MPa) | 10.0 | 16.0 | 25.0 | 32.0 | 42.0 |
| Test Pressure | Tensile Test | 15.0 | 24.0 | 37.5 | 48.0 | 63.0 |
| Sealing Test | 11.0 | 17.6 | 27.5 | 35.2 | 46.2 | |
| Low-pressure密封测试 | 0.5～0.7 | |||||
| Applicable Medium | Water, oil, steam, nitric acid (temperature ≤ 200℃), acetic acid (temperature ≤ 200℃) | |||||
Pneumatic High-Pressure Ball Valves - Product Selection
(1) Valve Body Parameters: Nominal Bore Size, Working Pressure, Process Medium, Application, Valve Body Material, and other series of 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, to facilitate our production and technical team in accurately selecting 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!
