Pneumatic O-type Ball Valve

2025-07-01

1. General Introduction

The Pneumatic O-Type Ball Valve is a quarter-turn control valve that uses compressed air (pneumatic power) to actuate an O-shaped ball, enabling precise on-off or flow regulation in pipelines. It combines the sealing reliability of a ball valve with the fast response and energy efficiency of pneumatic actuation.

2. Working Principle

The valve features an O-shaped ball with a circular through-hole and a pneumatic actuator (diaphragm or piston type).
Open Position: Compressed air pushes the actuator, rotating the ball 90° to align the hole with the pipeline, allowing fluid (liquid/gas) to flow with minimal resistance.
Closed Position: Air pressure reverses or releases, rotating the ball to block the flow path with the solid part of the ball, ensuring tight shut-off.

3. Design Features

Pneumatic Actuator:
- Diaphragm actuator: Suitable for low-pressure applications, offering smooth linear motion.
- Piston actuator: Ideal for high-pressure systems, providing higher torque and durability.
- Accessories: Solenoid valves, positioners, and limit switches enable remote control and feedback.
Ball & Seat:
- O-shaped ball: Made of stainless steel or alloy for corrosion resistance, with a precise circular hole for flow control.
- Seat: Soft materials (PTFE, rubber) for tight sealing or metal seats for high-temperature/high-pressure use.
Body Material: Cast iron, carbon steel, or stainless steel, chosen based on media compatibility and pressure ratings.

4. Applications

Industrial Automation: Used in chemical, petrochemical, and food processing plants for automated flow control of corrosive liquids, gases, or slurries.
Oil & Gas: Controls flow in wellheads, pipelines, and refineries, suitable for harsh environments with explosive or flammable media.
Water Treatment: Manages water flow in filtration systems, wastewater plants, and irrigation networks.
HVAC: Regulates refrigerant or water flow in heating/cooling systems for temperature control.

5. Advantages

Fast Actuation: Pneumatic power enables rapid 90° rotation (typically <1 second), critical for emergency shut-off systems.
Explosion-Proof Safety: Pneumatic operation is non-electrical, making it safe for hazardous areas with flammable gases.
Energy Efficiency: Relies on compressed air, reducing electricity consumption compared to electric valves.
Precise Control: Adjustable air pressure or positioners allow proportional flow regulation in modulating applications.
Low Maintenance: Simple structure with fewer moving parts, minimizing wear and tear.

In summary, the Pneumatic O-type Ball Valve is a versatile solution for automated fluid control, valued for its safety, speed, and adaptability in industrial and commercial systems.

Previous: Wellhead Next: Cast Steel Swing Check Valve

Ms. Iris

Email:

cepai@cepai.com

Send Inquiry

Tel:86-0517-80900000

Fax:86-0517-80909900

Mobile Phone:+86 18115707703

Email:cepai@cepai.com

Address:No. 88 Tongtai Avenue, No. 333 Jianshe West Road, Economic Development Zone, Jinhu County, Huaian, Jiangsu

Manage Your Cookies

Necessary cookies are always enabled. You can turn off other cookie options. Cookie Policy and Privacy Policy.

To use chat support services, please enable support cookies.

Strictly Required Cookies

Off

These cookies are required for the website to run and cannot be switched off. Such cookies are only set in response to actions made by you such as language, currency, login session, privacy preferences. You can set your browser to block these cookies but this might affect the way our site is working.

Analytics and Statistics

Off

These cookies allow us to measure visitors traffic and see traffic sources by collecting information in data sets. They also help us understand which products and actions are more popular than others.

Marketing and Retargeting

Off

These cookies are usually set by our marketing and advertising partners. They may be used by them to build a profile of your interest and later show you relevant ads. If you do not allow these cookies you will not experience targeted ads for your interests.

Functional Cookies

Off

These cookies enable our website to offer additional functions and personal settings. They can be set by us or by third-party service providers that we have placed on our pages. If you do not allow these cookies, these or some of these services may not work properly

CLOSE ACCEPT SELECTED COOKIES