Pneumatic Stainless Steel Ball Valve
Product Overview
The pneumatic stainless steel flange ball valve adopts a two-piece floating ball structure. The full-port design meets the requirements of pipeline pigging and has the maximum flow capacity. The valve body is integrally cast by sol-gel technology, with a smooth and burr-free surface, which is convenient for processing. This valve is used to cut off or connect the medium in the pipeline, and is suitable for two-position cut-off or regulation occasions.
Product Parameters
Parameter Item | Specification |
Product Name | Pneumatic Stainless Steel Ball Valve |
Product Model | Q641F |
Valve Body Material | Stainless Steel 304, 316, 316L |
Connection Type | Flange |
Applicable Pressure | 1.6Mpa-6.4Mpa |
Nominal Diameter | DN15~DN200 |
Drive Mode | Pneumatic |
Applicable Medium | Water, Steam, Oil, Nitric Acid, Acetic Acid, Ammonia Brine, Neutralized Water, etc. |
Applicable Temperature | -20°C ~ +150°C / -20°C ~ +240°C |
Design Standard | GB/T12237, API 6D, API 608 |
Structure Length | GB/T12221, ASME B16.10 |
Flange Connection | HG, GB, JB, ASME B16.5 |
Pressure and Temperature | GB/T9131, ASME B16.34 |
Actuator Type | AT Pneumatic Actuator |
Action Mode | Double-acting (Air-open & Air-close), Single-acting (Spring Return) |
Control Mode | Two-position on-off control, 4-20mA analog quantity control |
Air Supply Pressure | Double-acting: 3-8bar; Single-acting: 4-8bar |
Operating Medium | Air |
Connection Size | ISO5211 |
Air Supply Interface | Complies with NAMUR Standard |
Manufacturing Standard | GB, JB, HG, ANSI, API, JIS, DIN, Other Custom Standards |
Working Principle
The pneumatic stainless steel ball valve is composed of a pneumatic actuator and a precision-cast ball valve. It is mainly divided into two categories: pneumatic soft-seal ball valve and pneumatic hard-seal ball valve. The pneumatic flange ball valve has the advantages of compact structure, small volume, reliable operation, low flow resistance coefficient, good sealing performance, easy maintenance, convenient installation and strong adaptability. The pneumatic flange ball valve can be equipped with a travel limit switch, solenoid valve, pressure reducing valve and 0.4-0.7MPa air source to realize on-off operation, and send out two pairs of passive contact signals to indicate the on-off state of the valve.
Application Fields
The pneumatic stainless steel ball valve can be used for various media such as water, steam, oil, nitric acid, acetic acid, oxidizing media, urea, etc. It is widely used in automatic control in papermaking, petroleum, chemical industry, metallurgy, electric power, water treatment, environmental protection, petroleum, light industry and other industries.















